Stock Appearing BBC – 9.15 at 145.55 mph in the quarter mile!
10-03-2022, 05:47 PM
#21
Drifting
Thread Starter
So on those 8 inch wheels are you able to put on something like 10x28 slicks? I was also wondering if you are using a trans brake for launching up near the 6000 rpms?
I was surprised by the bolt together 9 inch TC. the only time I ever saw those was on a blown alki dragster and they were inspecting it after some runs. Th400 with an aluminium Rodic 410 class SBC.
I imagine that you have some kind of spragless billet stator in yours
I was surprised by the bolt together 9 inch TC. the only time I ever saw those was on a blown alki dragster and they were inspecting it after some runs. Th400 with an aluminium Rodic 410 class SBC.
I imagine that you have some kind of spragless billet stator in yours
10-03-2022, 08:38 PM
#22
Team Owner
To be consistent at drag racing WO a tranny brake like power braking launch. You have to figure out the max rpm where your rear brakes are overcome by the motor TQ and actually start pushing your locked up front tires through the staging lights which would cause a foul red light .
so in my vette with much less hp and only a 3800 stall would over come my stomped down brakes at the light power braking right about 1800 rpm. So for consistency I just turned up my idle speed screws to just under 1800 rpm.
Do the water box roll through to burn out with my set my line lock . Put my tranny in 2nd and bring my speedometer up to 100mph let off the line brake which allows the car to roll forward. Then just let off to roll up for prestage. Let the other person roll in.
Once the stage lights come on and I liked shallow stage on 5/10th tree to help me not red light. I did so many years of 4th Pro tree that the staggered bracket racing was off even when I would sit in the pits with a practice light.
so at the light. Left foot on the brake, right foot just touching the gas. Lights come down and which ever one you leave on. Foot goes down on the gas while lifting off the left foot brake
so in my vette with much less hp and only a 3800 stall would over come my stomped down brakes at the light power braking right about 1800 rpm. So for consistency I just turned up my idle speed screws to just under 1800 rpm.
Do the water box roll through to burn out with my set my line lock . Put my tranny in 2nd and bring my speedometer up to 100mph let off the line brake which allows the car to roll forward. Then just let off to roll up for prestage. Let the other person roll in.
Once the stage lights come on and I liked shallow stage on 5/10th tree to help me not red light. I did so many years of 4th Pro tree that the staggered bracket racing was off even when I would sit in the pits with a practice light.
so at the light. Left foot on the brake, right foot just touching the gas. Lights come down and which ever one you leave on. Foot goes down on the gas while lifting off the left foot brake
Last edited by gkull; 10-03-2022 at 08:47 PM.
10-03-2022, 10:03 PM
#23
Drifting
Thread Starter
To be consistent at drag racing WO a tranny brake like power braking launch. You have to figure out the max rpm where your rear brakes are overcome by the motor TQ and actually start pushing your locked up front tires through the staging lights which would cause a foul red light .
so in my vette with much less hp and only a 3800 stall would over come my stomped down brakes at the light power braking right about 1800 rpm. So for consistency I just turned up my idle speed screws to just under 1800 rpm.
Do the water box roll through to burn out with my set my line lock . Put my tranny in 2nd and bring my speedometer up to 100mph let off the line brake which allows the car to roll forward. Then just let off to roll up for prestage. Let the other person roll in.
Once the stage lights come on and I liked shallow stage on 5/10th tree to help me not red light. I did so many years of 4th Pro tree that the staggered bracket racing was off even when I would sit in the pits with a practice light.
so at the light. Left foot on the brake, right foot just touching the gas. Lights come down and which ever one you leave on. Foot goes down on the gas while lifting off the left foot brake
so in my vette with much less hp and only a 3800 stall would over come my stomped down brakes at the light power braking right about 1800 rpm. So for consistency I just turned up my idle speed screws to just under 1800 rpm.
Do the water box roll through to burn out with my set my line lock . Put my tranny in 2nd and bring my speedometer up to 100mph let off the line brake which allows the car to roll forward. Then just let off to roll up for prestage. Let the other person roll in.
Once the stage lights come on and I liked shallow stage on 5/10th tree to help me not red light. I did so many years of 4th Pro tree that the staggered bracket racing was off even when I would sit in the pits with a practice light.
so at the light. Left foot on the brake, right foot just touching the gas. Lights come down and which ever one you leave on. Foot goes down on the gas while lifting off the left foot brake
Thanks George!!
10-03-2022, 11:44 PM
#24
Team Owner
With power braking. You know left foot on the brake and right on the gas
There is a point where the motor over comes the brakes .
surprised that your not tranny brake guy. It's so easy to just lift your right thumb
There is a point where the motor over comes the brakes .
surprised that your not tranny brake guy. It's so easy to just lift your right thumb
10-04-2022, 02:18 PM
#25
Drifting
Thread Starter
I may end up with a trans brake at some point. I haven't done any research on them and don't know if it would compromise my street driving in any way.
10-04-2022, 09:54 PM
#26
Melting Slicks
Congrats on your outstanding achievement Steve! You're diligence is outstanding and 30RWHP would be great but shave another 0.10 off that 60' (very doable given how you're launching today!) And high 8's are in the bag!
10-04-2022, 10:04 PM
#27
Drifting
Thread Starter
Thanks John! Will thinks I can pick up a little more with further suspension tuning as well. I'm not going to chance things though. The next time I go out I will have that extra 30 rwhp!
10-05-2022, 12:25 PM
#28
Team Owner
Tranny brakes are a wonderful item. Mine was the typical first and reverse with the thumb button on the steering wheel.
The car has to be stopped, shifted into first, and then press the button as a safety feature.
My other advice is running the biggest volume pan, tranny cooler, and temperature gauge. You only want to engage it and go to WOT for the shortest possible time. Staging rev limiter is also a good idea and in your case setting it below 6000 and hooked into the transmission brake button
You could also try a staging rev limiter for consistency on power braking. I used one on my drag bike to get the same rpm launch every time
The car has to be stopped, shifted into first, and then press the button as a safety feature.
My other advice is running the biggest volume pan, tranny cooler, and temperature gauge. You only want to engage it and go to WOT for the shortest possible time. Staging rev limiter is also a good idea and in your case setting it below 6000 and hooked into the transmission brake button
You could also try a staging rev limiter for consistency on power braking. I used one on my drag bike to get the same rpm launch every time
10-05-2022, 02:17 PM
#30
Team Owner
We managed to shatter the TC stator once in a 6500 stall 8 inch my partner was driving. So I can't tell you exactly when or why it failed in a PG tranny.
But they make a brake that does first and second gear. I don't have any knowledge about it, so it might be worth researching if it causes less stress or heat
But they make a brake that does first and second gear. I don't have any knowledge about it, so it might be worth researching if it causes less stress or heat
10-07-2022, 12:29 PM
#32
Drifting
Thread Starter