.528 purple shaft street-able?

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Refresh my memory - did you try any roller cams in that engine? I am slowly working on a 511 low deck that will have manifolds so this thread has my attention.

I did a bunch of dyno testing with other flat tappet cams. Mostly solid flat tappet but also a hyd flat tappet. A couple of years later I did another stroker motor which was slightly bigger and with better heads. I used a hyd roller in the second motor but it didn't really make a lot more power than the .528 flat tappet.

The FAST guys have spent a lot more time and money on this subject than me. I'm sure that Dwayne could find a cam that would make more power than the .528 these days and it would probably be a roller cam.

Back when I did my testing I worked with a couple of different cam mfgs and they sent me their best designs. So it wasn't like I was just picking cams out of the catalog and testing them. I ran exactly what the engineers told me to run and nothing worked better than the .528 cam.

Very good info. Thank you Andy. I am looking for a low maintenance combination that will idle like a stocker with the A/C on. It sounds like the .528 could be a very good place to save a little coin too. Adding a hydraulic roller adds a significant amount to the budget once you price out lifters, a roller cam that can drive a mechanical fuel pump, etc.

Yes,a hyd roller does add a lot of money. If the budget is tight that is one of the first places to save money. For a street engine you won't see much difference.

Posted By: dogdays

Re: .528 purple shaft street-able? - 02/11/13 06:20 PM

AndyF sure liked it, especially through stock exhaust manifolds.
R.

Posted By: AndyF

Re: .528 purple shaft street-able? - 02/11/13 06:45 PM

The .528 works great with HP manifolds. Worked better than any other cam that I tested. I did tons of dyno testing and never found anything that worked better than the .528 cam.

Posted By: Jeremiah

Re: .528 purple shaft street-able? - 02/11/13 09:02 PM

Refresh my memory - did you try any roller cams in that engine? I am slowly working on a 511 low deck that will have manifolds so this thread has my attention.

Posted By: GTXbound

Re: .528 purple shaft street-able? - 02/11/13 11:07 PM

I guess i'll get this motor ready to go as follows

zero decked block

2355 pitons & 6 pack rods

.040 cometic head gaskets

Edelbrock RPM's milled to 78cc & gasket matched

Compression works out to about 10.6

.528 Purple shaft 4 degrees advance it the ptv checks out.

But i got another question .......

How will advancing the cam 4 degrees affect the compression (now is 10.6) for pump gas on the street ????

Posted By: 383man

Re: .528 purple shaft street-able? - 02/11/13 11:49 PM

Its a very good cam and works well for what it is. But I had a buddy who was unhappy with it because he said it idled and sounded to smooth ! He wanted somthing much lumpier. But I told him who cares how wicked it sounds it made great power for his combo. Ron

Posted By: AndyF

Re: .528 purple shaft street-able? - 02/12/13 01:24 AM

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Refresh my memory - did you try any roller cams in that engine? I am slowly working on a 511 low deck that will have manifolds so this thread has my attention.

I did a bunch of dyno testing with other flat tappet cams. Mostly solid flat tappet but also a hyd flat tappet. A couple of years later I did another stroker motor which was slightly bigger and with better heads. I used a hyd roller in the second motor but it didn't really make a lot more power than the .528 flat tappet.

The FAST guys have spent a lot more time and money on this subject than me. I'm sure that Dwayne could find a cam that would make more power than the .528 these days and it would probably be a roller cam.

Back when I did my testing I worked with a couple of different cam mfgs and they sent me their best designs. So it wasn't like I was just picking cams out of the catalog and testing them. I ran exactly what the engineers told me to run and nothing worked better than the .528 cam.

Posted By: Chris2581

Re: .528 purple shaft street-able? - 02/12/13 01:30 AM

It's a very good cam.I really wish I hadn't sold the one I had years ago.Anyway,we ran it in a very mild 440,9.0 compression,452 heads,and the usual bolt ons.Didn't even degree it in and it ran 11.60's all day in the 71 Demon I have now.

Posted By: Dodgem

Re: .528 purple shaft street-able? - 02/12/13 04:08 AM

I would install it at 106 maybe as far as 104!

Posted By: Dunnuck Racing

Re: .528 purple shaft street-able? - 02/12/13 05:13 AM

Andy,
Could you go into a little detail about the the testing you did? I bought your book and have read in other posts that you tested other cams with the manifolds,etc. I have never seen any results as far as power made,other cams tried,etc.
I think it would really help some guys to see dyno sheets or graphs.
Was the 528 the best average torque and horsepower ? Or was the power better down low for a street car only? Thanks for your input!
Keith

Posted By: GTXbound

Re: .528 purple shaft street-able? - 02/12/13 05:38 AM

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I guess i'll get this motor ready to go as follows

zero decked block

2355 pitons & 6 pack rods

.040 cometic head gaskets

Edelbrock RPM's milled to 78cc & gasket matched

Compression works out to about 10.6

.528 Purple shaft 4 degrees advance it the ptv checks out.

But i got another question .......

How will advancing the cam 4 degrees affect the compression (now is 10.6) for pump gas on the street ????

I'd rethink the 6pak rods if it's not too late.

Kevin

Too late the rotating assembly was balanced long ago and just sitting on the shelf....

How bad can the 6 pack rods be beside the weight?

It is realy just a street car with hopefully 500++HP ...lol

Posted By: Cheatham

Re: .528 purple shaft street-able? - 02/12/13 06:36 AM

back in 1990 i had a 67 dart 340 and used the .528 purple lashed at .026 .028 it was real strong so then i thot the .557 would be better and a weekend later the .557 was out and .528 was back in,it had great street manners and pulled hard to 7200 but best was to shift at 6800 i still have it on the shelf made great racing memories with it.

Posted By: Sweet5ltr

Re: .528 purple shaft street-able? - 02/12/13 01:25 PM

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Hey Guys

Just wanted some advice on the .528 purple shaft

would you guys run it straight up or advance it 4 degrees ?

Projected spec's looking for 500+ HP

comp 10:25 need's to live on pump gas.

Edelbrock aluminum RPM's 82cc

Edelbrock rpm intake gasket matched

Its going in a 4 speed 70 Dart .

Rear is 4:10's currently but i have a pumkin with 3:91's and 28 X 10.5 tire

Thanks

I use nearly the same combination (RPM heads, Victor intake, 4.10 gears, 4-speed, etc). Except, I run the .590 solid from Mopar, widely stated by Mopar to be completely un-streetable. I run the camshaft EVERY DAY on the street, and it is aggressive, but no where near un-streetable. .528 would be a kitten, I would either go with the .557 or .590 at a MINIMUM if you want to build serious power and have a ridiculous idle sound to match..

Posted By: 72Challenger

Re: .528 purple shaft street-able? - 02/12/13 03:38 PM

I guess I would install the cam straigh up, no advance. I mean it's a 4-speed, just up the revs when you have lack of trq.

Posted By: fullmetaljacket

Re: .528 purple shaft street-able? - 02/12/13 04:06 PM

That cam likes a little squeeze on the compression. When I ran it, I had maybe 9.8 -10.0 compression at best and it ran out the door at low 12's driving it every where and to and from the track. At the time my ride was weighing in at 3500 Lbs.
Put the same stick into a friends 3900 lb car and it went 12.90's with out good tuning.
He was lazy behind the wheel as well.

Posted By: carter

Re: .528 purple shaft street-able? - 02/12/13 05:19 PM

I planning to run the MP�s 0.528 in my 440.I have Eddy RPM`s heads... Can somone recommend a valve spring for this setup?

Tnx

Posted By: Mr.Yuck

Re: .528 purple shaft street-able? - 02/12/13 05:20 PM

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I planning to run the MP�s 0.528 in my 440.I have Eddy RPM`s heads... Can somone recommend a valve spring for this setup?

Tnx

The springs that come on the E-heads will be fine.

Posted By: JohnRR

Re: .528 purple shaft street-able? - 02/12/13 05:26 PM

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How bad can the 6 pack rods be beside the weight?

It is realy just a street car with hopefully 500++HP ...lol

the rods are heavy , the mistake mopar made was not upping the bolt size to 7/16 for the LY 3/8 . Just make sure they have a GOOD set of bolts in them , ARP Wavelocks ...

Posted By: 72blubird

Re: .528 purple shaft street-able? - 02/12/13 05:49 PM

The .528 seems to be a very strong cam. I guess my thought was running a four speed like you I could go with a bit more cam. Not sure if I left something or not, but it seems strong and it has a great sound at idle. I am also running it through manifolds Will have to wait until this summer to get it at the track for the first time and see how it performs. The one I chose was an off the shelf comp cams extreme energy hydraulic flat tappet. Rpm range 2,500-6,200/Advertised Duration .285 int .297 ex/Dur @.050; .241 in .247 ex/ Lift .545 in. 545 ex with 1.5 rockers. Lobe Separation Angle 110.

You are getting good advice from experts I am not one. Just thought I would offer my choice on a mostly street driven car that is a blast to drive.

Posted By: JohnRR

Re: .528 purple shaft street-able? - 02/12/13 08:06 PM

All this .528 talk has me thinking about running one in a stockish 383 with a 4 speed and advancing it 4 degrees , the car is question has 3.23 gears though .

the 02 MP catalog has it listed in it's cam recommendation chart in a 383 with a 4 spd ...

Posted By: fullmetaljacket

Re: .528 purple shaft street-able? - 02/13/13 01:01 AM

By the way, I ran mine straight up with an old measly TM7 manifold. Low 12's after all tuning was exhausted in a 3500 Lb. B-body.

Posted By: moparguy1967

Re: .528 purple shaft street-able? - 02/13/13 03:51 AM

http://www.youtube.com/watch?v=n5NweB9PyhU

Just a little video of my car with the 284/528 solid cam.

My 446 was built by Andy Jensen. It has forged flat top piston, scat H-beam rods, and forged crank. The compression ratio is just over 10 to 1. The heads are 906 cut for larger SS valves and the bowls are blended. Its topped off with a RPM Performer intake and Pro Systems 4150 carb. The cam was installed straight up, but Andy did tighten up the lash. He dyno'd the engine with headers and it made 520 HP and 560 lbs torque. I picked this cam because of an article I had read a few years back and it made good power for a street car. I run HP manifolds, not header in my car, so Im sure I loss a little power.

Hope this helps.

http://www.youtube.com/watch?v=OOIgewNRCxk

dyno pull

Posted By: carter

Re: .528 purple shaft street-able? - 02/13/13 05:05 PM

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I planning to run the MP�s 0.528 in my 440.I have Eddy RPM`s heads... Can somone recommend a valve spring for this setup?

Tnx

The springs that come on the E-heads will be fine.

Mr.Yuck

Posted By: 440Jim

Re: .528 purple shaft street-able? - 02/13/13 08:35 PM

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The .528 works great with HP manifolds.

If you are going to run factory cast iron exhaust manifolds, then the 0.528" is a good choice. If you are running headers with the heads, CR, etc. of that engine... then I would move up to the MP 0.557" or something similar.

Posted By: OhioMopar

Re: .528 purple shaft street-able? - 02/14/13 01:41 AM

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All this .528 talk has me thinking about running one in a stockish 383 with a 4 speed and advancing it 4 degrees , the car is question has 3.23 gears though .

the 02 MP catalog has it listed in it's cam recommendation chart in a 383 with a 4 spd ...

What he said. I've been following this thread. Going to build a stockish 383 with a couple upgrades. 4-speed as well. Initially it will be a 3.23, but will probably go to a 3.55 or even a 3.91 once I get some miles on it.

Posted By: RoadRunnerLuva

Re: .528 purple shaft street-able? - 02/14/13 02:36 AM

Not to hijack the thread or anything...
but this thread reminds me of my '69 300
C body convertible I owned 25 years ago.

Installed a similar MP .509 hydraulic cam (straight up) in the stone stock 440 short block (original engine,10:1 comp.350 hp version)factory stock 906 heads,used an old CH4B Eddy intake,ootb untouched Holley 750 3310 vac.secondary carb, MP ignition, Hooker 1-7/8 headers I believe...full 2-1/2 in. exhaust, with cheap turbo mufflers, 3.91 sure-grip with rock hard radial 60 series tires out back...

Best Quarter mile time? 14.19 @ 99mph Milan Dragway MI. around late summer 1987...in a
4600 pound boat!!!

used to street race it some, and whupped
a (brand new at the time) '87 Grand National
very badly on Gratiot Ave. one memorable summer night!

wish I still had that car.

Posted By: moper

Re: .528 purple shaft street-able? - 02/14/13 03:14 AM

the .509 is a larger cam then the .528 solid. I like the .528 but I still think a more modern grind can be better depending on the package.

Posted By: JohnRR

Re: .528 purple shaft street-able? - 02/14/13 03:44 AM

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the .509 is a larger cam then the .528 solid. I like the .528 but I still think a more modern grind can be better depending on the package.

I agree but the engine I am going to try it on is for someone that doesn't need the fear of using a cam ground to take advantage of the .904 lifter. I have an Engle KV-1 that I think is similar to the .528 that I want to put in a stockish 383 to see how it runs , I had it ground up for a 432 F.A.S.T. stroker and had the lobe sep spread to 112 to bring up the idle vac, but I need to put that in something with bushed lifter bores ...

Posted By: titan

Re: .528 purple shaft street-able? - 02/26/13 05:48 PM

Does anyone have the valve opening/closing stats so one can run the .528 on a dyno simulation program?

Posted By: FastOne

Re: .528 purple shaft street-able? - 02/26/13 10:50 PM

intake opens 32 BTDC, intake closes 72 ABDC, exhaust opens 76 BBDC, exhaust closes 28 ATDC

Sounds like a decent profile for a Ski boat?

Posted By: rbstroker

Re: .528 purple shaft street-able? - 04/28/13 08:57 PM

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The .528 works great with HP manifolds. Worked better than any other cam that I tested. I did tons of dyno testing and never found anything that worked better than the .528 cam.

Andy's done all the work, and I see no need to re-invent the wheel, so I'll be swapping to the .528 cam in my 496 stroker with manifolds, MP452 heads, and six pack. 4 speed trans. Should I advance it a couple of degrees? My compression is purposely low at 8.82 (measured).

Posted By: 65 DODGE POST

Re: .528 purple shaft street-able? - 04/28/13 09:04 PM

Cam is definitely street able... I had one in a 360 with ported x heads when I was 21...(16 years ago Damn!) I drove it everyday It was in a 3500 lb challenger.... with a 4500 stall 3.55 gears car ran 12:37 at 108MPH...That cam in a big block would be on the mild side....Just my opinion..my motor made about 390-400 horse

Posted By: RobX4406

Re: .528 purple shaft street-able? - 04/28/13 09:08 PM

The suggested install is at 110. IIRC, it's cut on a 112 LSA

I put mine in a 340 at 107 and it's a pretty good runner.

Posted By: AndyF

Re: .528 purple shaft street-able? - 04/29/13 12:34 AM

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The .528 works great with HP manifolds. Worked better than any other cam that I tested. I did tons of dyno testing and never found anything that worked better than the .528 cam.

Andy's done all the work, and I see no need to re-invent the wheel, so I'll be swapping to the .528 cam in my 496 stroker with manifolds, MP452 heads, and six pack. 4 speed trans. Should I advance it a couple of degrees? My compression is purposely low at 8.82 (measured).

You probably want that cam installed at 108. That should be a good combo. Tell us how it works. The .528 is mild enough that the six pack tuning shouldn't be too hard. You'll need to recurve the distributor a little but that should be about it.

.528 purple shaft street-able?