Project Pure Stock Debut

[Dan Fahey]

Originally Posted by KennyAnderson

I'll have to do some homework on the Tunercats deal. I will get a chip from someone after making the final major changes but it would be nice to be able to tweak it in the future. I called Greg at FTI about a converter. He has done several converters for me in the past. When I told him about this project I could almost see the gleam in his eye over the phone. Its a non-lockup (made the changes to the tranny) 4k street fighter series. Plus I COULD NOT beat the price. Less than I found most used converters. 60' went from 1.92 to 1.68!!!!! Please tell me about the 1-2 shift fix on a non-E tranny. I just got a B&M Trans Pak and hope that helps but if there is something else I would forever be in your debt! LOL!

PS. Bullet will be getting a phone call down the road.

Here is the website for TunerCat.
http://www.tunercat.com/

Do you have a 93 or 95 LT1 Camaro?
The Manual Valve Body most likely by passed the 1-2 Shift Issue.

Using a Converter greater than 3000 Stall causes the Housing to twist a degree or two preventing the Reluctor to lose signal with the Pickup.
Happens with Slicks and grippy surface.
Under normal conditions and street tires you do not have that problem.

Not an issue with ODB2.

BTW 4200 Stall is about the limit on our engines.

D

[Ed Wright]

He evidently has a '93 if it came with a 4L60 (not an E ), which has no shift issues with what guys call the "stall wall". That is only an issue with the '94/'95 LT1 PCMs. Had zero to do with the tail housing. It's a slip test issue in the '94/'95 PCM. I have a software hack for that. The OBD2 boxes happen to not have that. It has nothing to do with OBD1 or 2.
The '93 required a device programmer (aka "chip burner") and eraser if normal EPROMs are used. Also a couple of EPROMs and a piggy- back board, or spare factory MEMCALs with EPROMs which GM stopped selling in 2007. Some of the later MEMCALs came with OTP (One Time Programmable) proms. Saved GM about $.75 per unit.
Not sure where the 4200 stall limit story came from? Guys are running higher than that.

[KennyAnderson]

This is a 93 with OBD1 and a no E 4L60. The tranny has no electronic controls. It uses a governor like a TH350 etc. I'm hoping the manual VB feature of this shift kit fixes it. I like the idea of leaving it in drive but it seems to shift inconsistently and late. The reason I say this converter could be tighter is simply cause with the 3 sumptin low gear and 4.10's it really revs fast in 1st and goes thru the power band quick. I'm seat of the pants guessing but the power band seems to be around 4500-5500.

Got headers today too! Woohoo! Long story short, I'm whittling away at it and the car responded a ton to everything I've done. .5 under shouldnt be much trouble.

[Ed Wright]

If the rules allowed a different ratio trans it would be much more managble. That much low gear in a light car will keep you busy adjusting it. Mine was like a tractor. Spinning the tires or standing straight up. :-) The big RPM drops at shifts don't help anything.
Think tech would notice a metric 200? LOL

[KennyAnderson]

Originally Posted by Ed Wright

If the rules allowed a different ratio trans it would be much more managble. That much low gear in a light car will keep you busy adjusting it. Mine was like a tractor. Spinning the tires or standing straight up. :-) The big RPM drops at shifts don't help anything.
Think tech would notice a metric 200? LOL

I was thinking a TH350 with a 4L60E tranny pan welded on the bottom! LOL!

[Ed Wright]

Does the Bullet "blueprint" cam keep factory duration? Is that even published? If it has more duration your RPM range will be higher. On-track testing I have done with both my bone stock virgin LT1 Camaro & TA (not even headers that would effect it) showed quickest ETs (with proper tuning) shifting it at 6000 RPM. I'm not sure what you are seeing on an chassis dyno sheet that tells you the needed stall speed. You do realize, that with an automatic car running a loose converter, the numbers are skewed (out of sync with the torque numbers), right?

[Dan Fahey]

Originally Posted by Ed Wright

Does the Bullet "blueprint" cam keep factory duration? Is that even published? If it has more duration your RPM range will be higher. On-track testing I have done with both my bone stock virgin LT1 Camaro & TA (not even headers that would effect it) showed quickest ETs (with proper tuning) shifting it at 6000 RPM. I'm not sure what you are seeing on an chassis dyno sheet that tells you the needed stall speed. You do realize, that with an automatic car running a loose converter, the numbers are skewed (out of sync with the torque numbers), right?

Yes it is published.

The engine was dynoed by Jeff Warren after he built it.
Btw where do you have a dyno?

D

[Ed Wright]

Originally Posted by KennyAnderson

I was thinking a TH350 with a 4L60E tranny pan welded on the bottom! LOL!

Yeah, a Pro Trans. LOL

[Dan Fahey]

Originally Posted by KennyAnderson

This is a 93 with OBD1 and a no E 4L60. The tranny has no electronic controls. It uses a governor like a TH350 etc. I'm hoping the manual VB feature of this shift kit fixes it. I like the idea of leaving it in drive but it seems to shift inconsistently and late. The reason I say this converter could be tighter is simply cause with the 3 sumptin low gear and 4.10's it really revs fast in 1st and goes thru the power band quick. I'm seat of the pants guessing but the power band seems to be around 4500-5500.

Got headers today too! Woohoo! Long story short, I'm whittling away at it and the car responded a ton to everything I've done. .5 under shouldnt be much trouble.

Install a Bullet Blueprint cam you will be fine....and very happy !!
Regarding 3.08 first gear on the 4L60.
On a heavy car like mine it just the ticket.

The factory cam power range, yup you are correct.. !!

d

[Dan Fahey]

Originally Posted by Ed Wright

He evidently has a '93 if it came with a 4L60 (not an E ), which has no shift issues with what guys call the "stall wall". That is only an issue with the '94/'95 LT1 PCMs. Had zero to do with the tail housing. It's a slip test issue in the '94/'95 PCM. I have a software hack for that. The OBD2 boxes happen to not have that. It has nothing to do with OBD1 or 2.
The '93 required a device programmer (aka "chip burner") and eraser if normal EPROMs are used. Also a couple of EPROMs and a piggy- back board, or spare factory MEMCALs with EPROMs which GM stopped selling in 2007. Some of the later MEMCALs came with OTP (One Time Programmable) proms. Saved GM about $.75 per unit.
Not sure where the 4200 stall limit story came from? Guys are running higher than that.

YUP.. had that problem when I went to a 3200 Stall Edge Converter.
Bryan Herter send me a 1-2 Shift Bin file to fix that problem.

Based on my Cam and Engine and Dyno Sheet.
The Stall limit for my car is 4200rpm.

D