Re: cam suggestions for 440
[Re: Dougsmopars]
#359973
06/29/09 07:01 PM
06/29/09 07:01 PM
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Joined: Oct 2004
Posts: 16,482 Canada
CrAzYMoPaRGuY
I Live Here
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I Live Here
Joined: Oct 2004
Posts: 16,482
Canada
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Here's my two cents worth........ I just went through the same dilemna, picking a cam for a mild car... My Jensen is 3500ish pounds with highway gears. It'a a 440 .030 over with a measured 9.35 to 1 compression (now), very mildly ported heads, headers, and I went with two Edelbrock 500s on an Edelbrock CH28 lowrise intake. I really thought about both versions of the MP 484 cam, but ended up going with the Comp Cams 270H. I'll have it running in the next little while and post the actual driving impressions, but I researched as much as I could and I think it's what I wanted. I hope it works out...
CrAzYMoPaRGuY
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Re: cam suggestions for 440
[Re: Dougsmopars]
#359977
06/29/09 07:26 PM
06/29/09 07:26 PM
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Joined: Jun 2008
Posts: 565 IA
landon1
mopar
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mopar
Joined: Jun 2008
Posts: 565
IA
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probably because it would bleed off too much compression...and you don't start making power til 3K or so...i wanted to get the 509 when i was informed only by chevy guys when i was 16 on what to do with mine...glad i waited and did my research.
i really can't wait to get mine back together. the XE268 is pretty popular as it uses stock converter and is still supposed to have a bit of a lumpy idle.
'71 Satellite Sebring 440
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Re: cam suggestions for 440
[Re: Dougsmopars]
#359978
06/30/09 07:05 AM
06/30/09 07:05 AM
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Joined: Jan 2003
Posts: 24,562 Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
And forget all about the Holley. It ain't happening. I hate them i hate them i hate them.
then I guess you don't want the best out of your engine. When I was young I hated them to, but after you mess w/ them and READING how they work they are really easy to tune. and MUCH more tunable than the eddy or cater carbs. a 750DP is much more carb than the 800 thunder. Before you give up on the Holley read about it.
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Re: cam suggestions for 440
[Re: Dougsmopars]
#359980
06/30/09 07:56 AM
06/30/09 07:56 AM
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Joined: Jan 2003
Posts: 16,123 Grand Haven, MI
patrick
I Live Here
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I Live Here
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Grand Haven, MI
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Quote:
is this the one your useing? Thyis is the one i was looking at. LUN-60303LK Cam Style Hydraulic flat tappet Basic Operating RPM Range 1,800-6,200 Intake Duration at 050 inch Lift 226 Exhaust Duration at 050 inch Lift 234 Duration at 050 inch Lift 226 int./234 exh. Advertised Intake Duration 268 Advertised Exhaust Duration 276 Advertised Duration 268 int./276 exh. Intake Valve Lift with Factory Rocker Arm Ratio 0.494 in. Exhaust Valve Lift with Factory Rocker Arm Ratio 0.513 in. Valve Lift with Factory Rocker Arm Ratio 0.494 int./0.513 exh. lift Lobe Separation (degrees) 110 Camshaft Gear Attachment 3-bolt
that's the one I'd go with, just make sure your springs can handle the lift. another good choice would be an Engle 2356-H. it's 272 adv, 224@.050, .504" lift, same lobe intake and exhaust.
Last edited by patrick; 06/30/09 08:03 AM.
1976 Spinnaker White Plymouth Duster, /6 A833OD 1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!*** 2011 Toxic Orange Dodge Charger R/T 2017 Grand Cherokee Overland 2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: cam suggestions for 440
[Re: Dougsmopars]
#359982
06/30/09 09:00 AM
06/30/09 09:00 AM
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Joined: Jan 2003
Posts: 24,562 Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
When i was young i hated Holley carbs. 35 years later i still hate Holley carbs. If they were so great and so dependable then tell me why through out the muscle car era very few cars came out of the factory with a Holley?
some did as a matter of fact all 6 pack cars had them and I thing 383 4 speed cars came w/ them. If the carter design is so great why is it NASCAR and NHRA Pro-stock guys use the holley design? Carters were cheaper than Holley's I'm guessing is the main reason.
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Re: cam suggestions for 440
[Re: Dougsmopars]
#359985
06/30/09 04:23 PM
06/30/09 04:23 PM
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Joined: Oct 2004
Posts: 16,482 Canada
CrAzYMoPaRGuY
I Live Here
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I Live Here
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Posts: 16,482
Canada
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Are you leaning towards a certain group of cams, or? I was looking at the Comp 268 dual patterns, the MP 484 (two different grinds), the 270H Comp which I went with and a few others...
The 270H has only .470" lift but I think it should be a good cam for a street/strip car that sees more street than strip, and my highway-ish gears and reasonably heavy weight factored in my decision as well my 9.35 to 1 compression..
Are you more a street cruising kinda guy with the occassional pounding, highway driver, or..?
CrAzYMoPaRGuY
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Re: cam suggestions for 440
[Re: 2boltmain]
#359987
06/30/09 04:44 PM
06/30/09 04:44 PM
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Joined: Jun 2008
Posts: 565 IA
landon1
mopar
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mopar
Joined: Jun 2008
Posts: 565
IA
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Comp XE 268 specs: 268/280 224/230 @ .050 .477/.480 lift 1600-5800 power range
'71 Satellite Sebring 440
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Re: cam suggestions for 440
[Re: mark7171]
#359989
06/30/09 05:57 PM
06/30/09 05:57 PM
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Joined: May 2005
Posts: 2,295 dark side of the moon
Dougsmopars
OP
top fuel
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OP
top fuel
Joined: May 2005
Posts: 2,295
dark side of the moon
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cars an automatic. stall unknown. I'll be putting in a 25 to 2800 when i do the tranny. Gears are 3;55 or 3;91. I'll check tomorrow to know for sure.No tach in the car right now and speedo bounces to much to know for sure the actual speed. Have another cluster that was restored on the way with calibrated VDO tach installed. Car is not going to be raced. I'm just looking to get some good red light to red light thrills. Looking to make plenty of low end torque. A real good tire fryer
Last edited by Dougsmopars; 06/30/09 05:58 PM.
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Re: cam suggestions for 440
[Re: Dougsmopars]
#359990
07/01/09 07:33 AM
07/01/09 07:33 AM
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Joined: Jan 2003
Posts: 16,123 Grand Haven, MI
patrick
I Live Here
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I Live Here
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Grand Haven, MI
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if you want a torquey stoplight to stoplight motor, keep the cam in the 224-230@.050 range (spec wise, I think I like the voodoo 60303), and I'd ditch the torker for an edelbrock RPM intake.
1976 Spinnaker White Plymouth Duster, /6 A833OD 1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!*** 2011 Toxic Orange Dodge Charger R/T 2017 Grand Cherokee Overland 2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: cam suggestions for 440
[Re: patrick]
#359991
07/01/09 11:08 AM
07/01/09 11:08 AM
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Joined: Jul 2004
Posts: 4,732 Watertown, WI
MikeyT
master
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master
Joined: Jul 2004
Posts: 4,732
Watertown, WI
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My car is very similar to yours in size and set up. I actually think you might be closer then you think. I would keep the carb you have, I had a buddy help me set up my 770 Holley street avenger and its jetted up some, but sticks rock solid for as long as I've put it on. I had to step up one jet size to make it perfect.
It sounds like a 750 double pumper is plenty of carb for your build. Streetwize sells a online book here, that talks a lot about street car performance.
Streetwize, in his book even claims that lots of guys with 440's get great performance using even a smaller 650 Holley DP, depending on the other factors in the build. Yet, for a build like yours, you would be hardpressed to need anything above a 750 dp.
Here is my suggestion from both the dyno and butt dyno. I run a Comp XE268, that I had degreed.
It runs strong and gives a deceptive, but nice idle with good vaccum for my power brakes. It also has a very workable power band
Mike
1969 Dodge Dart Swinger
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Re: cam suggestions for 440
[Re: MikeyT]
#359992
07/01/09 01:57 PM
07/01/09 01:57 PM
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Joined: Jan 2003
Posts: 3,329 Melbourne, FL
dwbiggs
super gas
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super gas
Joined: Jan 2003
Posts: 3,329
Melbourne, FL
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Quote:
enough with the carbs. THE CAR IS NOT GETTING A HOLLEY !!!!!! End of story. Post was a question on cam choise not carbs.
Chicken!!!!
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