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-   -   Stocker Cam (https://classracer.com/classforum/showthread.php?t=69387)

Dan Fahey 03-26-2018 03:01 PM
Stocker Cam
 
Just ordered a Stocker cam from Bullet..

Going to be using the stock PCM...limited to 7000 rpm..!
Using a 8.5 inch Rear with Street Moser Axles.

Have 4.56's, guessing 5.15 or 5.38 with 30 inch tires.
Running a PerfomaBuild 4L60E with a Yank 4400PT locking Converter.

Seeking advice where to get to.

D

GUMP 03-26-2018 03:10 PM
Re: Stocker Cam
 
Quote:
Originally Posted by Dan Fahey (Post 559154)
Just ordered a Stocker cam from Bullet..

Going to be using the stock PCM...limited to 7000 rpm..!
Using a 8.5 inch Rear with Street Moser Axles.

Have 4.56's, guessing 5.15 or 5.38 with 30 inch tires.
Running a PerfomaBuild 4L60E with a Yank 4400PT locking Converter.

Seeking advice where to get to.

D
As that thing has a pretty deep first gear, I would try the 4.56 first. It will probably want a bunch more stall.

Dan Fahey 03-26-2018 04:25 PM
Re: Stocker Cam
 
Quote:
Originally Posted by GUMP (Post 559156)
As that thing has a pretty deep first gear, I would try the 4.56 first. It will probably want a bunch more stall.
Can you put a non locking converter in a 4L60E that uses a Locking Converter?

D

GUMP 03-26-2018 04:26 PM
Re: Stocker Cam
 
Quote:
Originally Posted by Dan Fahey (Post 559163)
Can you put a non locking converter in a 4L60E that uses a Locking Converter?

D
best to talk to ATI on that one......

Mark Yacavone 03-26-2018 04:54 PM
Re: Stocker Cam
 
Quote:
Originally Posted by Dan Fahey (Post 559163)
Can you put a non locking converter in a 4L60E that uses a Locking Converter?

D
Yes.

On the cam..What duration ? You may find that the vacuum parameters are outside of what the stock ECM likes.

ss3011 03-26-2018 06:54 PM
Re: Stocker Cam
 
Are you running a MAF sensor ? You won't have any problems putting a non-lock-up Race converter on a 4L60-e, but you will be giving up a few mph on trap speed .

Alan Roehrich 03-26-2018 07:06 PM
Re: Stocker Cam
 
Biggest problem will be the severe drop between 1st and 2nd gear. By the way, Sonnax now has the cure for that.Which will allow you to run a lower rear gear.

FrankM 03-26-2018 07:35 PM
Re: Stocker Cam
 
Hey Dan,
I talked to Charlie at ATI for my 8" non lockup for my 4l60e and Ed Wright removed the lockup from the PCM. Also, Ed said to use a 96+ PCM because a 95 won't allow a stall above 2200ish. I haven't run the car yet so can't comment on how it will run.

GUMP 03-27-2018 07:25 AM
Re: Stocker Cam
 
Anyone ever try running the lockup in third? I am curious if it helped or hurt.

Dan Fahey 03-27-2018 11:25 AM
Re: Stocker Cam
 
Quote:
Originally Posted by ss3011 (Post 559189)
Are you running a MAF sensor ? You won't have any problems putting a non-lock-up Race converter on a 4L60-e, but you will be giving up a few mph on trap speed .
Yes using a MAF sensor..

Have not used the Locking part yet.
Is that common?

Dan

Dan Fahey 03-27-2018 11:27 AM
Re: Stocker Cam
 
Quote:
Originally Posted by FrankM (Post 559196)
Hey Dan,
I talked to Charlie at ATI for my 8" non lockup for my 4l60e and Ed Wright removed the lockup from the PCM. Also, Ed said to use a 96+ PCM because a 95 won't allow a stall above 2200ish. I haven't run the car yet so can't comment on how it will run.
I have ODB 1 using work-a-round fix, did that 10 years ago.
Using a Yank 4400PT lock up now..

The lock up make the car cruise at a decent rpm driving it on the street.

D

Dan Fahey 03-27-2018 02:00 PM
Re: Stocker Cam
 
Stocker Cam and Brakes!!

Does anyone have a problem using power brakes with a large duration cam?

D

Irace007 03-27-2018 02:15 PM
Re: Stocker Cam
 
Lack of vacuum will be the problem.Canister or Hydro Boost (P/S) set up will fix it
Good luck

ss3011 03-27-2018 03:46 PM
Re: Stocker Cam
 
Most aftermarket controllers don't need a MAF . It might be a restriction on the inlet . If you don't use 4th gear , then why not lock up the converter in 3rd gear and get that benefit in efficiency ?

Dan Fahey 03-27-2018 05:18 PM
Re: Stocker Cam
 
Quote:
Originally Posted by Irace007 (Post 559268)
Lack of vacuum will be the problem.Canister or Hydro Boost (P/S) set up will fix it
Good luck
This is new to me.
How are they hooked up?

D

GUMP 03-27-2018 05:51 PM
Re: Stocker Cam
 
Quote:
Originally Posted by ss3011 (Post 559277)
If you don't use 4th gear , then why not lock up the converter in 3rd gear and get that benefit in efficiency ?
That was my line of thought. I would at least try it if I had it......


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