Moparts

Best Daily Driver 383 cam

Posted By: 69rrgrabber

Best Daily Driver 383 cam - 06/18/10 04:13 AM

Any one have a favorite cam for a 383 daily driver? The car is a 69 Road Runner, with auto and 323 posi. It will be used for crusing cross country, stop lite to stop lite low end speed. Looking for good torque at low and mid RPM.

This is what I have, stock 69 383, 9.5:1 CR, 3 angle valve job on stock heads, DP4 Eddie intake, 600 Holley, Headman Elite Headers, dual exhaust, x pipe, have stock 12 inch and 11 inch converter, auto, 323 posi.

I already have a 440 car so max power isn't as important as max torque in this case.

Thanks,
Carl
Posted By: 451Mopar

Re: Best Daily Driver 383 cam - 06/18/10 04:29 AM

I hear the Launiti Voodo 60303 is a nice cam for this type of application? I would guess a Comp XE or Hughes cam of the same duration would also work?
Posted By: Junky

Re: Best Daily Driver 383 cam - 06/18/10 07:25 PM

Comp Cam XE262H. Perfect cam for what you want. Slightly "bigger" than the stock "Road Runner" cam, but good low end, and will wind to 5,700 RPM's with power.
Posted By: CR8CRSHR

Re: Best Daily Driver 383 cam - 06/18/10 08:08 PM

Hughes 2328 is a good one too...
Posted By: TMBOOTS

Re: Best Daily Driver 383 cam - 06/18/10 09:21 PM

I'm happy with Comp Cam 280H PP474 in my 383 dart-same rear gears but a 4-speed. Seems to have a lot of mid range torque, along with great sound at idle.
Posted By: 69rrgrabber

Re: Best Daily Driver 383 cam - 06/19/10 02:30 AM

Thanks for all the responses. I tried the online computer dyno to try to get an idea on how much torque vs horsepower the cams would give (ball park). All are in a good range,all will give, according to the program, 370 to 397 hp and 440 to 480 lbs torque, but the bigger 280 cam gives about 29 hp over the smaller 262 cam, and the smaller cam gives about 40 lbs of torque over the biggest. The Hughes cam and Voodoo cam are in between.

What is better for a cruiser? gain 40 lbs torque or 27 hp? Maybe a better question is about how much torque does a 383 need to put out to push the Road Runner with ease?

Thanks
Carl
Posted By: Chris2581

Re: Best Daily Driver 383 cam - 06/19/10 03:13 AM

I'd look at the "Mr Six Pack" cam..do a search for his member name and you'll get the details on info.
Posted By: 451Mopar

Re: Best Daily Driver 383 cam - 06/19/10 03:53 AM

with the 3.23:1 gears and stock converter you will want the torque.
Posted By: intragration

Re: Best Daily Driver 383 cam - 06/19/10 05:51 PM

It's a great cam, I just started driving my 440 'Cuda with a Mr. Six Pack. I wonder how it would run in a 383...
Posted By: rss

Re: Best Daily Driver 383 cam - 06/19/10 08:16 PM

Quote:

It's a great cam, I just started driving my 440 'Cuda with a Mr. Six Pack. I wonder how it would run in a 383...



What are your thouhts on the Mr. 6 Pack cam? Is it really much different than the stock HP cam?
Posted By: intragration

Re: Best Daily Driver 383 cam - 06/19/10 09:23 PM

I've never driven a stock-ish HP cammed car before, the motor was a 350HP when it was in the car previously. I will say this about the Mr. Six Pack, it seems to have a bit of an idle-thing going on, in a good way, more than I would think you'd see in a stock car. I haven't driven it enough yet to have a complete grasp on it's characteristics. Seems like a good deal for the price though.
Posted By: rss

Re: Best Daily Driver 383 cam - 06/19/10 10:12 PM

Quote:

it seems to have a bit of an idle-thing going on, in a good way, more than I would think you'd see in a stock car.




Not sure I'm following you.

Most stuff I've read regarding the Mr. 6 Pack cam is that it has a super smooth idle. Some have described it as idling like a 6-cylinder or 318 stocker.
Posted By: 69rrgrabber

Re: Best Daily Driver 383 cam - 06/20/10 02:10 AM

Is there a web site to order a Mr Six Pack cam?

Thanks
Carl
Posted By: rss

Re: Best Daily Driver 383 cam - 06/20/10 02:51 AM

Quote:

Is there a web site to order a Mr Six Pack cam?




I don't believe so. I think you need to call him up.

http://sixpacksuperbee.homestead.com/MRSIXPACK.html


Posted By: intragration

Re: Best Daily Driver 383 cam - 06/20/10 05:34 AM

I have stock quiet mufflers right now, and there's no mistaking my motor for a 318. It's not wild and crazy, but there's definitely something going on there. I'll know more once I get the new exhaust on.

Here's his info, I don't represent him or have any affiliation with him, just a very satisfied customer. I just called him up and ordered with a credit card. He even spent time talking to my engine shop during the build process, giving recommendations and advice:

Mr. Six Pack
Bob Karakashian
(248) 477-7776
mr6pk@hotmail.com
Posted By: rss

Re: Best Daily Driver 383 cam - 06/20/10 06:22 AM

Quote:

I have stock quiet mufflers right now, and there's no mistaking my motor for a 318. It's not wild and crazy, but there's definitely something going on there. I'll know more once I get the new exhaust on.




Thanks for the info. I'm going to give him a call to see if he thinks his cam will work well for my 383 build.
Posted By: CompSyn

Re: Best Daily Driver 383 cam - 06/21/10 04:22 AM

Quote:

Quote:

I have stock quiet mufflers right now, and there's no mistaking my motor for a 318. It's not wild and crazy, but there's definitely something going on there. I'll know more once I get the new exhaust on.




Thanks for the info. I'm going to give him a call to see if he thinks his cam will work well for my 383 build.



Bob is a great guy. After talking with him on the phone I bought his cam two years ago for my street 383 build. It's not done yet so I can't say how well it runs in in a 383. He did tell me his cam is in many 383 engines. BTW, Bob does not grind his own cams, he has Ingle Cams grind it for him using his top secret specs.

Read more:

Bob Karakashian - Part 1

Bob Karakashian - Part 2

Posted By: rss

Re: Best Daily Driver 383 cam - 06/21/10 04:38 AM

Quote:

I bought his cam two years ago for my street 383 build. It's not done yet so I can't say how well it runs in in a 383.



C'mon, get that thing buttoned up so you can let me know how she runs.
Posted By: patrick

Re: Best Daily Driver 383 cam - 06/21/10 01:41 PM

Quote:

Thanks for all the responses. I tried the online computer dyno to try to get an idea on how much torque vs horsepower the cams would give (ball park). All are in a good range,all will give, according to the program, 370 to 397 hp and 440 to 480 lbs torque, but the bigger 280 cam gives about 29 hp over the smaller 262 cam, and the smaller cam gives about 40 lbs of torque over the biggest. The Hughes cam and Voodoo cam are in between.

What is better for a cruiser? gain 40 lbs torque or 27 hp? Maybe a better question is about how much torque does a 383 need to put out to push the Road Runner with ease?

Thanks
Carl



torque. where is the 27HP advantage? probably over 5000 RPM. how often do you buzz your motor up there? where is the 40 lb-ft advantage? probably in the 3000-3500 RPM range, where you're at a lot more. the midrange torque advantage also translates to a midrange HP advantage. I'd use a comp XE262 or voodoo 60302 if looking at an off the shelf grind.
Posted By: HYPER8oSoNic

Re: Best Daily Driver 383 cam - 06/24/10 01:56 AM

Quote:

Thanks for all the responses. I tried the online computer dyno to try to get an idea on how much torque vs horsepower the cams would give (ball park). All are in a good range,all will give, according to the program, 370 to 397 hp and 440 to 480 lbs torque, but the bigger 280 cam gives about 29 hp over the smaller 262 cam, and the smaller cam gives about 40 lbs of torque over the biggest. The Hughes cam and Voodoo cam are in between.

What is better for a cruiser? gain 40 lbs torque or 27 hp? Maybe a better question is about how much torque does a 383 need to put out to push the Road Runner with ease?

Thanks
Carl

Hands down, gaining the
40 ftlbs of torque! You need it for "powering thru
the gears", passing, or just plain hi-speed cruising (60+ mph or higher) on the highway!!
But idle content is important too, so is quiet
operation till you put foot in it!! I have to
agree with some of the other members on the cam
from Mr. Six Pack. Not that I am posting a plug
for him, it just makes sense!! Especially with the
3.23's!!! All I can say is do more research on his
camshafts.

Posted By: dulcich

Re: Best Daily Driver 383 cam - 06/24/10 03:03 AM

A guy would have to be on a marvelous, magical, delusion-filled trip to fantasyland to think there is a 40 lb-ft difference in peak torque between these cams.
-dulcich
Posted By: HYPER8oSoNic

Re: Best Daily Driver 383 cam - 06/25/10 01:52 AM

Quote:

A guy would have to be on a marvelous, magical, delusion-filled trip to fantasyland to think there is a 40 lb-ft difference in peak torque between these cams.
-dulcich



Simply put I answered the members post, with a
non bias answer and WITHOUT criticism. 40 ft/lbs
of torque is enough you can feel. Depending on the equipment used you can make that much or more
over the stocker. So before you start your personal opinion on someone's elses project, think
how you wouldn't want someone else "clowninig" your choices. Put yourself in their shoes for a
change. Help, don't or IT MAY RETURN
THE "FAVOR" BACK AT YOU!!
Posted By: 66Dodge

Re: Best Daily Driver 383 cam - 06/25/10 04:32 AM

Quote:

Quote:

A guy would have to be on a marvelous, magical, delusion-filled trip to fantasyland to think there is a 40 lb-ft difference in peak torque between these cams.
-dulcich



Simply put I answered the members post, with a
non bias answer and WITHOUT criticism. 40 ft/lbs
of torque is enough you can feel. Depending on the equipment used you can make that much or more
over the stocker. So before you start your personal opinion on someone's elses project, think
how you wouldn't want someone else "clowninig" your choices. Put yourself in their shoes for a
change. Help, don't or IT MAY RETURN
THE "FAVOR" BACK AT YOU!!



Dude! The guy you're bumping heads with (Steve Dulcich) writes technical articles for Mopar Muscle and other major car magazines.
He's paid to do engine builds, dyno testing, and equipment/component performance test comparisons just to name a few.
It's safe to say that his past articles and advice have helped others to achieve successful projects, solve tuning/performance problems, and saved us from throwing away good money. He has more real world knowledge/experience in his little pinky than you would ever have in your lifetime.
Posted By: 69rrgrabber

Re: Best Daily Driver 383 cam - 06/25/10 05:15 AM

Dulcich,

I've read and enjoyed your tech articles a lot over the past 12 years+ I was very surprised to see that you would have any interest in such a humble search for a low horse power cammed, daily driver 383. Surprise turned to disbelief as I read your negative comment.

The original cam I was looking at was the XE256H cam. I didn't mention that because I wanted to see what people had for advise for a cam. I guess you don't have any advise, just negative comments.

All I have to go by are cam charts and a desk top dyno, and the desk top dyno by Comp Cams said 40 lbs torque between that cam and a bigger one suggested.

I'd like to thank everyone who helped me out in choosing a cam. I really appreciate it.

Carl
Posted By: 66Dodge

Re: Best Daily Driver 383 cam - 06/25/10 05:31 AM

Quote:

Any one have a favorite cam for a 383 daily driver? The car is a 69 Road Runner, with auto and 323 posi. It will be used for crusing cross country, stop lite to stop lite low end speed. Looking for good torque at low and mid RPM.

This is what I have, stock 69 383, 9.5:1 CR, 3 angle valve job on stock heads, DP4 Eddie intake, 600 Holley, Headman Elite Headers, dual exhaust, x pipe, have stock 12 inch and 11 inch converter, auto, 323 posi.

I already have a 440 car so max power isn't as important as max torque in this case.

Thanks,
Carl



If you already have the stock RR cam in your 383 that should be adequate for what you want. That RR cam is perfect as is for what you want to do and then some. The rest of your combo sounds like a perfect fit. So why are you "dumbing down" to a cam with much more mild-manners ? Just don't lead foot what you have and you'll be fine. BTW, I don't get it. You have headers, x-pipe, DP4B, and you still want to dumb down to an XE256 ?! That's like installing a RV/towing cam. LOL
Posted By: dulcich

Re: Best Daily Driver 383 cam - 06/25/10 07:24 AM

I wasn't trying to bust anyone's chops with that reply. I think the engine "dyno" programs are generally misleading. The exception would be the most sophisticated and unsually expensive ones, and only when given very good and detailed data.

To generalize, cams will tend to move the torque peak rpm and change the shape of the torque coure, rather than add and subtract vast quantities of torque, unless something is really wrong. 40 lb ft just isn't realistically up for grabs here by going with a smaller cam.

Here's the peak torque results from a dyno test on a very basic small block Chevy, running all of the Comp XE cams, from the tiny XE250 to the huge XE294, run back to back with no other changes.

XE 250 475 at 3600
XE 256 472 at 3700
XE 262 476 at 4000
XE 268 479 at 41-4200
XE 274 477 at 4200
XE 284 477 at 4200
XE 294 480 at 4300

That is a pretty typical result.
-dulcich
Posted By: 66Dodge

Re: Best Daily Driver 383 cam - 06/25/10 08:12 AM

The difference between the XE256 and XE268 is just 7ft.lbs. of torque and that 7ft.lbs. moved only 500rpms down.
And 500rpms less is like easing off the gas pedal about a 1/4". Am I missing something here ? What is it about the RR cam that you don't like for cross-country cruising and low speed stop and go. That's primarily all part-throttle driving. Any cam can do that and you won't feel the difference unless you really stab the gas pedal.
Maybe all you need is to swap the 3.23 gears for 2.94 .
Also, removing an RR cam out of an RR ? Why not just buy a land barge C-body instead. LOL
Posted By: macmic87

Re: Best Daily Driver 383 cam - 06/25/10 10:15 AM

Quote:

Quote:

Quote:

I have stock quiet mufflers right now, and there's no mistaking my motor for a 318. It's not wild and crazy, but there's definitely something going on there. I'll know more once I get the new exhaust on.




Thanks for the info. I'm going to give him a call to see if he thinks his cam will work well for my 383 build.



Bob is a great guy. After talking with him on the phone I bought his cam two years ago for my street 383 build. It's not done yet so I can't say how well it runs in in a 383. He did tell me his cam is in many 383 engines. BTW, Bob does not grind his own cams, he has Ingle Cams grind it for him using his top secret specs.

Read more:

Bob Karakashian - Part 1

Bob Karakashian - Part 2





i actually just finished installing the six pack cam in my road runner with 3:54 gears last week. my street car is a pleasure to drive now and tuning is a breeze (with a six bbl). higher vacuum, smoother idle and good torque down low is what you want for a street car.
Posted By: Junky

Re: Best Daily Driver 383 cam - 06/25/10 02:44 PM

Hmmmm. Comp Cams web site: I remember seeing a side by side comparison a few years ago of the XE262H and XE268H cams installed in a 350 chevy engine. That comparison showed the 262 making 5 more ponds of torque over the 268.
Posted By: 451Mopar

Re: Best Daily Driver 383 cam - 06/25/10 03:20 PM

Quote:

I wasn't trying to bust anyone's chops with that reply. I think the engine "dyno" programs are generally misleading. The exception would be the most sophisticated and unsually expensive ones, and only when given very good and detailed data.

To generalize, cams will tend to move the torque peak rpm and change the shape of the torque coure, rather than add and subtract vast quantities of torque, unless something is really wrong. 40 lb ft just isn't realistically up for grabs here by going with a smaller cam.

Here's the peak torque results from a dyno test on a very basic small block Chevy, running all of the Comp XE cams, from the tiny XE250 to the huge XE294, run back to back with no other changes.

XE 250 475 at 3600
XE 256 472 at 3700
XE 262 476 at 4000
XE 268 479 at 41-4200
XE 274 477 at 4200
XE 284 477 at 4200
XE 294 480 at 4300

That is a pretty typical result.
-dulcich



The peak torque numbers might be close, but the torque curves are going to be quite different.
The small cam should have a fairly flat torque curve from 1,500 to peak torque than drop off fairly quickly. The large cam might be down as much as 100 ft/lbs @ 1,500 RPM compared to the small cam at the same RPM, and the torque curve will ramp up to peak torque, and fall off slower past peak torque.

My on the Mr six pack cam is that it might have advertised specs close to a stock HP cam, but ground with agressive 0.904" tappet lobe profiles. Would that be a stock "cheater" cam
Posted By: dulcich

Re: Best Daily Driver 383 cam - 06/26/10 12:49 AM

Quote:

Quote:

I wasn't trying to bust anyone's chops with that reply. I think the engine "dyno" programs are generally misleading. The exception would be the most sophisticated and unsually expensive ones, and only when given very good and detailed data.

To generalize, cams will tend to move the torque peak rpm and change the shape of the torque coure, rather than add and subtract vast quantities of torque, unless something is really wrong. 40 lb ft just isn't realistically up for grabs here by going with a smaller cam.

Here's the peak torque results from a dyno test on a very basic small block Chevy, running all of the Comp XE cams, from the tiny XE250 to the huge XE294, run back to back with no other changes.

XE 250 475 at 3600
XE 256 472 at 3700
XE 262 476 at 4000
XE 268 479 at 41-4200
XE 274 477 at 4200
XE 284 477 at 4200
XE 294 480 at 4300

That is a pretty typical result.
-dulcich



The peak torque numbers might be close, but the torque curves are going to be quite different.
The small cam should have a fairly flat torque curve from 1,500 to peak torque than drop off fairly quickly. The large cam might be down as much as 100 ft/lbs @ 1,500 RPM compared to the small cam at the same RPM, and the torque curve will ramp up to peak torque, and fall off slower past peak torque.



You are precisely right with what you are saying.
-dulcich
Posted By: HYPER8oSoNic

Re: Best Daily Driver 383 cam - 06/26/10 12:56 AM

Quote:

Quote:

Quote:

A guy would have to be on a marvelous, magical, delusion-filled trip to fantasyland to think there is a 40 lb-ft difference in peak torque between these cams.
-dulcich



Simply put I answered the members post, with a
non bias answer and WITHOUT criticism. 40 ft/lbs
of torque is enough you can feel. Depending on the equipment used you can make that much or more
over the stocker. So before you start your personal opinion on someone's elses project, think
how you wouldn't want someone else "clowninig" your choices. Put yourself in their shoes for a
change. Help, don't or IT MAY RETURN
THE "FAVOR" BACK AT YOU!!



Dude! The guy you're bumping heads with (Steve Dulcich) writes technical articles for Mopar Muscle and other major car magazines.
He's paid to do engine builds, dyno testing, and equipment/component performance test comparisons just to name a few.
It's safe to say that his past articles and advice have helped others to achieve successful projects, solve tuning/performance problems, and saved us from throwing away good money. He has more real world knowledge/experience in his little pinky than you would ever have in your lifetime.



Yes, Steve has a very good reputation as a
world renouned Mopar journalist. None that I
dare to question. He has helped me quite a bit
with his excellent tech articles, too!! There is
no question about that, either!! No harm done. I
simply voiced my opinion about the remark he made.
I understand he gets "the brunt" sometimes in his
replies to his articles, and as an automotive
journalist, it shouldn't matter. Criticism is part
of journalism. And as I had said before, I may not
agree with you, but I WOULD NEVER DISRESPECT YOU.
The idea of me bumping heads with Steve is what
YOU say! Read my post you quoted carefully, it
refers to the REMARKS, not Steves technical expertise! That's why I replied the way I DID!
Steve, no harm done man. Just expressing myself on
the negative comments NOT your tech buddy!

Posted By: dulcich

Re: Best Daily Driver 383 cam - 06/26/10 01:12 AM

I'm not upset at all, or anything like that. I was just hoping for a chance to use that "marvelous, magical, delusion-filled trip to fantasyland" line because I thought it was funny and would open up the post for some more discussion on the effects of cams, and some of the simulation software. It was not directed at anyone personally. I'm sorry if the words hurt feelings, it was not meant to be personal. I try not to be nasty to anyone unless it is feets, or especially rapidrobert.
-dulcich
Posted By: 66Dodge

Re: Best Daily Driver 383 cam - 06/26/10 02:46 AM

Posted By: RapidRobert

Re: Best Daily Driver 383 cam - 06/26/10 05:41 AM

Quote:

I'm sorry if the words hurt feelings, it was not meant to be personal. I try not to be nasty to anyone unless it is feets, or especially rapidrobert.
-dulcich

I agree, Steve has forgotten more info than I will ever have at my disposal.
Posted By: HYPER8oSoNic

Re: Best Daily Driver 383 cam - 06/26/10 11:26 AM

Quote:

I'm not upset at all, or anything like that. I was just hoping for a chance to use that "marvelous, magical, delusion-filled trip to fantasyland" line because I thought it was funny and would open up the post for some more discussion on the effects of cams, and some of the simulation software. It was not directed at anyone personally. I'm sorry if the words hurt feelings, it was not meant to be personal. I try not to be nasty to anyone unless it is feets, or especially rapidrobert.
-dulcich



Posted By: 451Mopar

Re: Best Daily Driver 383 cam - 06/26/10 01:59 PM

This got me curious, so I plugged the comp XE262 and the comp 280 cams into my Dynomation5 simulator (both installed at 106 cl), and it shows a 23 ft/lb peak torque difference. Here are the numbers the sim came up with:

Cam 262 280 280@100cl
RPM HP TQ HP TQ HP TQ
1000 75 391 68 359 72 378
1500 118 413 109 382 115 402
2000 161 422 148 387 155 408
2500 213 448 199 419 208 437
3000 260 455 243 425 252 442
3500 310 465* 293 440 308 462*
4000 343 451 337 442* 347 456
4500 359* 419 361* 421 368* 429
5000 350 368 359 377 365 383
5500 326 311 343 328 343 328
6000 286 251 311 272 303 266

The smaller cam really is a better fit for your combination. The larger cam is showing higher numbers for charge loss (reversion into the intake), this is one reason advancing the cam helps, the other is advancing the cam closes the intake sooner building more cylinder pressure.

After messing with this for awhile, I realized that your engine and setup is really close to stock, so I just plugged in the stock HP cam specs of 268/284 0.450/0.458, 115 lsa, installed at 106:
RPM HP TQ HPhr TQhr
1000 71 373 71 371
1500 114 399 115 403
2000 153 403 153 402
2500 207 434 207 436
3000 255 447 257 449
3500 306 459* 308 463*
4000 345 453 351 461
4500 367* 429 375* 437
5000 363 382 372 391
5500 341 325 348 332
6000 302 265 310 271

The second set of numbers is using the same stock 268/284 duration with 115 lsa, installed at 102 icl, but using the same (fast)lobe ramp rate as the XE cam, and 0.490/0.500" lift. If the Mr Six pack cam is simular, it might be the one to use?
Posted By: macmic87

Re: Best Daily Driver 383 cam - 06/26/10 03:24 PM

the six pack cam i installed was recommended to be installed at 115 center line. this was according to mr sixpack based on my gear ratio and tire height.
Posted By: 69rrgrabber

Re: Best Daily Driver 383 cam - 06/26/10 05:54 PM

I was too quick to judge and get bent out of shape. I will have to take things with a grain of salt for now on! Thanks for writing back and clarifying.

Well I'm going with the 262 cam, I think the torque curve will be best for my application. The Mr. Six Pack cam sounds great too. The specs are secret from what I hear, but if it is in the 260 range then I'll go for it to take advantage of the .904 lifter.

Thanks again to everyone for their time and responses, I really appreciate it.

Carl
Posted By: 66Dodge

Re: Best Daily Driver 383 cam - 06/26/10 07:32 PM

Assuming you still have the stock RR cam in it, what is it about it's current driveabiliy/manners that you don't like ?
Posted By: ademon

Re: Best Daily Driver 383 cam - 06/26/10 09:55 PM

the vodoo cam in my near stock 383 4 speed is great! way more bottom and mid than i expected its stats are: 220/226 @.050 with 475/494 lift on a 112 lsa installed a 107

Attached picture 6055657-68RR3834-speed(104).jpg
Posted By: 451Mopar

Re: Best Daily Driver 383 cam - 06/26/10 09:58 PM

Quote:

the six pack cam i installed was recommended to be installed at 115 center line. this was according to mr sixpack based on my gear ratio and tire height.



Sorry for the confusion, I don't know the specs of the Mr six pack cam (they are not disclosed, but if you have a cam it can be measured/profiled.) I was speculating that they may be close to stock, but with more agressive lobes?
Besides, I was just posting "computer simulation" results for comparison, and not having all the specific information avaliable, I had to make some assumptions on intake and exhaust port length, taper and volume. I used flow numbers from a decent flowing stock 906 head, and the 9.5:1 compression that was listed in the original post.
Posted By: feets

Re: Best Daily Driver 383 cam - 06/27/10 06:02 AM

Quote:

I try not to be nasty to anyone unless it is feets
-dulcich




Yet I keep leaving myself open for more.






Posted By: macmic87

Re: Best Daily Driver 383 cam - 06/27/10 01:07 PM

Quote:

Quote:

the six pack cam i installed was recommended to be installed at 115 center line. this was according to mr sixpack based on my gear ratio and tire height.



Sorry for the confusion, I don't know the specs of the Mr six pack cam (they are not disclosed, but if you have a cam it can be measured/profiled.) I was speculating that they may be close to stock, but with more agressive lobes? Besides, I was just posting "computer simulation" results for comparison, and not having all the specific information avaliable, I had to make some assumptions on intake and exhaust port length, taper and volume. I used flow numbers from a decent flowing stock 906 head, and the 9.5:1 compression that was listed in the original post.


i went round and round trying to see what the exact specs were for the cam and that was a big secret. but after talking with mr six pack and alot of six pack cam users and not hearing a single complaint. i took a leap of faith and installed it. now this was after going through 2 other cams that did not respond well to the six barrel setup. the big point mr sixpack made about his cam was that it was not based on the common chevy lobe design and based on the lobe designs chryslers put out back in the day. this was to take advantage of the lifter dia. so my personal experience went well. i have alot of vacuum, an extremely smooth idle, and great tunability (is that a word?). again this is my street car and that is what i wanted for cruising. if i wanted a 1/4 killer i would have gone in different direction. here is the sheet that cam with the cam that i received.
Posted By: chrisf

Re: Best Daily Driver 383 cam - 06/27/10 02:42 PM

Quote:

the vodoo cam in my near stock 383 4 speed is great! way more bottom and mid than i expected its stats are: 220/226 @.050 with 475/494 lift on a 112 lsa installed a 107



i have that same cam in a 383 and am very happy. good power. vacuum and idle. i would buy another voodoo cam in a heartbeat after using this one.
Posted By: Frederick

Re: Best Daily Driver 383 cam - 06/27/10 03:08 PM

Just finished a 383 also with the Lunati 60302
(262/268 220/226 @.050 0.475"/0.494")
Happy so far, break-in went fine, idles at 800rpm.
No ticking lifters like I have heard on the comp XE series.

How much vacuum are you pulling ChrisF?
I'm getting 15"
and a cranking compression of 145psi, seems a bit low to me?

383 +030, 9.58:1 compression, cam installed 108
Posted By: 69rrgrabber

Re: Best Daily Driver 383 cam - 06/28/10 04:41 AM

Hey, on that Voodoo cam, did you have to do anything special to the heads for the extra lift? Are the stock rockers fine? Do you need the matched springs?
Carl
Posted By: ademon

Re: Best Daily Driver 383 cam - 06/28/10 04:57 AM

i'm getting 17" vacuum on my 4speed, i do idle it a bit higher at 850rpm, i'm right at 10.1 with about 175 cranking psi. i would get the springs that they show for the cam, i'm running the stock 42 year old rockers with no problem.
Posted By: Frederick

Re: Best Daily Driver 383 cam - 06/28/10 09:21 AM

Stock rockers here too.

Stock springs won't work.
Suggest you use the springs Lunati recommend or something similar.
I'm using 26918 Comp Beehives and 440 source heads.

Thanks for the details, Ademon.
Must be my lower compression then and testing cold.
Posted By: patrick

Re: Best Daily Driver 383 cam - 06/28/10 12:49 PM

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I was too quick to judge and get bent out of shape. I will have to take things with a grain of salt for now on! Thanks for writing back and clarifying.

Well I'm going with the 262 cam, I think the torque curve will be best for my application. The Mr. Six Pack cam sounds great too. The specs are secret from what I hear, but if it is in the 260 range then I'll go for it to take advantage of the .904 lifter.

Thanks again to everyone for their time and responses, I really appreciate it.

Carl



XE262 still uses a chevy lobe. only the comp XE-HL (XE275HL) is the smallest shelf .904 lifter cam they make.

the lunati voodoo series was designed for a .904 lobe. I'd look at the voodoo 60302....it should work with comp #911 springs.
Posted By: HYPER8oSoNic

Re: Best Daily Driver 383 cam - 07/10/10 01:47 PM

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the six pack cam i installed was recommended to be installed at 115 center line. this was according to mr sixpack based on my gear ratio and tire height.



Sorry for the confusion, I don't know the specs of the Mr six pack cam (they are not disclosed, but if you have a cam it can be measured/profiled.) I was speculating that they may be close to stock, but with more agressive lobes? Besides, I was just posting "computer simulation" results for comparison, and not having all the specific information avaliable, I had to make some assumptions on intake and exhaust port length, taper and volume. I used flow numbers from a decent flowing stock 906 head, and the 9.5:1 compression that was listed in the original post.


i went round and round trying to see what the exact specs were for the cam and that was a big secret. but after talking with mr six pack and alot of six pack cam users and not hearing a single complaint. i took a leap of faith and installed it. now this was after going through 2 other cams that did not respond well to the six barrel setup. the big point mr sixpack made about his cam was that it was not based on the common chevy lobe design and based on the lobe designs chryslers put out back in the day. this was to take advantage of the lifter dia. so my personal experience went well. i have alot of vacuum, an extremely smooth idle, and great tunability (is that a word?). again this is my street car and that is what i wanted for cruising. if i wanted a 1/4 killer i would have gone in different direction. here is the sheet that cam with the cam that i received.




Good Deal!! What size and type of carb you are running on your combo? (Vac sec or air door type- AVS/AFB) Might of missed it in your post. It's the amount of vacuum that interests me, for the carb I would go with. Can't go wrong with it!!

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