timing/fuel on transbrake for spoolup?

[Six_Silver]

I have a bs3 and have only changed the idle and WOT timing and VE tables so far over the base program that PTE supplied with the computer. Everything in the middle of the map is still how it was from PTE. Looking at my logs I think I have too much timing in my ttype at spoolup. Not sure if the fuel is where it should be either. On the brake the rpm vs timing vs boost vs a/f is below:

RPM ---- Timing ---- Boost ------- A/F ---------TPS%

2500 --- 33 --------- 1 ---------- 14.8:1 ---- 45%
2700 --- 30.5 ------- 2 ---------- 14.4:1 ----- 55%
2900 --- 27 --------- 3.5 -------- 13.8:1 ----- 65%
3100 --- 26 --------- 4.5 -------- 12.3:1 ----- 65%
3300 --- 25.5 ------- 6 ---------- 12.4:1----- 65%
3500 --- 25 ---------- 7 --------- 12.8:1----- 65%
3800 --- 26 ---------- 10 -------- 12.9:1----- 75%
4100 --- 24 ---------- 14 -------- 13.1:1----- 75%
4300 --- 23 ---------- 17 -------- 13.3:1 ----- 100%
4700 --- 22.5 -------- 20 -------- 13.1:1 ----- 100%

I also noticed that I ease into the throttle as you can see by the tps numbers above which Im sure has something to do with it. I guess I am just used to easing into it like I used to on the footbrake.

Any suggestions for target a/f and timing? I run 110 straight if it matters.

 

[Otto J]

First off up the a/f in the 17# plus range to at least 11.0 to start
20#s at 13.1=1 is way to lean

As far as targets i would start with 11.0-1 and lean it out slightly from there, timing at WOT full boost no more than 24* with 110 fuel maybe even a bit less to ba safe
Is this a stage or stock block motor?

I run my timing at 35* right up until around 14#s of boost with an air fuel of 12.5 to 1
My car spools fast,this may or may not work for you


Hope this helps

 

[Six_Silver]

This is a stock block car. The next frame after the launch is 11.2:1 and stays in the 11.0-11.3 area for the whole pass. Total timing was at 21 degrees during the pass.

35 degrees is even more than I have. I thought less timing heats the exahust to make the car spool faster? Maybe I will just have to see what the car likes best.

 

[Six_Silver]

Can anyone else share their thoughts? How much timing is too low for spoolup?

 

[norbs]

I would run 30 degees timing up to 15 psi boost, after that about 25 at 20 psi and about 24 about 25 psi. on C-16. With an a/f of 12.2-5 on spool up