First I guess you could say it isn't "technically" cam-only since it has a Fast92 but this is what I did tonight...

Spent about an hour and a half dialing the fuel curve after sending the converter off to be tightened for the upcoming thrashing this stock bottom end is going to receive via a lot of nitrous very soon.

This is with a 239/247 .624/.624 110lsa installed straight up, Fast 92, 96mm tb, ARH 1x7/8" with 6-8" extensions off headers and Vibrant 3"x5" mufflers.

Unlocked TH400 FTI 9" stall converter and 20psi of air in the tires, and yes 20psi I didn't pump them up to try and inflate the numbers. I just wanted to get the motor dialed in as best as possible making the most power it can before I spray it. This was with 27* total timing also.



BTW the numbers are 423/382 as I realize my scanner didn't get the best resolution.

 

What size stall? What rear? What gear?

 

It's a custom FTI 9" stalls to 4200ish on 27* timing on the transbrake with no two step rpm set and flashes 4600 and locks up around 4800 judging by the graph. Old stall would go 4700-4800 on 27* and flash 4900-5000 lock up around 5200. This is all on motor as the converter is a nitrous stall.

12 bolt rear with a spool and 4.11's.

 

Me like the cam

 

I figured you would like that Chris.

 

I'm confused I guess. You said unlocked stall in the first post then in the second post you said lockup around 5200?

 

Right, flash and lock-up to me are two different things.

Flash is where the rpm's jump before the car moves off the line, lock-up is when the car starts to accelerate hard normally 200-400rpm after the converter flashes.

I refer to "lockup" as where the converter begins to couple efficiently and starts to pull.

 

 

Trouble maker...

 

Never that

 

When I hear the term lock up in reference to an automatic transmission, I instantly and only think of engaging the electronic lock up clutches in the converter.

 

While I agree, lock up is normally associated with the clutch in 60e's, it is however negated by the mention. Of a th400.. To me it read fine..

 

Here is what the curve ended up looking like after I completely dialed the fuel curve in and got rid of that dip in the graph.


Here is what it looked like with the old N/A 5900 stall in it and without the 4" intake and air bell in the bumper.

 

What converter in now?

 

It's the same 9" core it has just been re-stalled.

 

Sweet,

 

Nice #'s Martin!

 

Thanks Brandun!

I will have nitrous numbers tomorrow!

 

Nice looking set up . Close to what I will have in my s10. Except it's a 238/250 110 Lsa 106 cl and super vic intake and 950 holly

 

I like that cam who spec'd it?