B/PS lt1 formula

[Dan Fahey]

Originally Posted by KennyAnderson

Morning Russell,

I am the guy building the 93 Z-28. Just getting started as a matter of fact. Bought the car from a local guy who was already racing it in no-e here at home. All it has is a mail order chip in it. According to Jim Woods it is a natural C/PS although I plan on dropping down to D. I don't think I could get it light enough to really be a factor in B. As it sits its 100 lbs over for D mainly due to the nut behind the wheel, me. When my son takes over we will be good for C. This car is for him when he is done with JR's next season. I just bought an FTI 3800 stall converter and lock-up eliminator kit (Sorry Dan. Good friends w/ Greg and Troy Williams @ FTI and they made me a killer deal). Lock-up removes 6 lbs of rotating mass from the converter and this car wont see much if any street time. I was looking for more stall but with a max power @ around 5500 more than one guy felt like it would be to close to power levels on the shift fall back. I plan on putting in 4.10 gears and have some headers coming. I will use some small flowmasters and put dumps under the car. This should make a tad bit more power but more importantly cuts 50 lbs of junk removing the X pipe/cats/over the rear exhaust. The car runs 9.oh's and teens in the eigth right now so I need 7 tenths just to play since D has an 8.50 index. Hoping to make the IHRA race in Lakeland in a couple weeks but time is running low and I am busy as a 1 armed paper hanger. Plan on getting converter in and all a/c heater stuff out next week. I'll keep you posted and look forward to checking out your build.

No Problem Kenny:
Having drivability issues with mine.
Want to make Lakeland too by taking the Auto Train to Sanford.

You made the better choice.
There are a whole lot of local guys my converter would work better for.
FWIW.. with a IHRA approves cam you could have gone to 4200 stall.
However if the 3800 stall if it flashes to 4600 you will be fine..

Dan

B/PS? Who in the world would want to run that?

Contact Mark Kent at GM about the cam specs. IHRA didn't have any for our car so we emailed him and he was kind enough to send us the OEM #s. I then sent those to Mike Baker and he approved the car for Pure Stock. Then gave those numbers to Bullet and they ground us a nice cam. With changing the cam and adding 1 & 7/8" headers we picked up more than 5 tenths.

Also, don't be afraid to put a converter and gear in it. We have a Yank SS4000 because I found one almost new for about half of what they cost. It's a great converter but it's a street converter. When I get ambitious I'm going to try to get it loosened up to 5000. We also put a 3.90 gear in the car because it was a DD at the time. They only go to a 4.10 on the gear for these cars and I wish I had that. We run a 28" tire. I believe with a 5000 TC and a 4.10 gear I could pick up even more. If I had an LT1 car (and I have had those) I wouldn't hesitate going with a 5000 converter and a 4.56 gear with a 28" tire.

Where are you located?

Scott

[russellauto1]

Thanks for the information. Would you still go with a 5000 converter if the engine redline is 5700? I know there is more to it than say a 5000 stall. We used to run 5200 8" converters in j/sa firebird with a 305. I guess it was no different back then! I totally agree with the gearing and that high of a stall.
When you got the camshaft from Bullet, What was different about it? Duration? CL? Oh yea, I'm in ohio.

[KennyAnderson]

Originally Posted by Tar Heel

B/PS? Who in the world would want to run that?

Contact Mark Kent at GM about the cam specs. IHRA didn't have any for our car so we emailed him and he was kind enough to send us the OEM #s. I then sent those to Mike Baker and he approved the car for Pure Stock. Then gave those numbers to Bullet and they ground us a nice cam. With changing the cam and adding 1 & 7/8" headers we picked up more than 5 tenths.

Also, don't be afraid to put a converter and gear in it. We have a Yank SS4000 because I found one almost new for about half of what they cost. It's a great converter but it's a street converter. When I get ambitious I'm going to try to get it loosened up to 5000. We also put a 3.90 gear in the car because it was a DD at the time. They only go to a 4.10 on the gear for these cars and I wish I had that. We run a 28" tire. I believe with a 5000 TC and a 4.10 gear I could pick up even more. If I had an LT1 car (and I have had those) I wouldn't hesitate going with a 5000 converter and a 4.56 gear with a 28" tire.

Where are you located?

Scott

1/2 a second from a cam and headers is AWESOME!!! What is your car rated at for hp Scott? What et's and mph do you run. I have a bud with a late model LS1 vette he built into an NHRA legal stocker with mainly just bolt ons. Runs quite a bit under the index. REALLY peaves the stocker guys when he drives it into the racetrack and goes waayyy under and goes rounds.