Tool
Originally Posted by rotorsownyou7
Yeah, Ryan Woon's 6-speed took that 8.75 TT Viper out about 2 months ago with a 8.62. Drive a Supra on the track and then you will see. I don't know, I have never driven one, but when you have a bunch of big drag racers writing these things, you kind of have to believe them.
I don't see how setting it on the box will take you were you want? A 2-step is set at a certain RPM to have your boost built and ready to go at a certain place where you want.
I don't see how setting it on the box will take you were you want? A 2-step is set at a certain RPM to have your boost built and ready to go at a certain place where you want.
edit: myclone your are right about the 2 step working on a turbo car, didn't think much on it at first.
Last edited by silvcobra; Aug 2, 2006 at 03:25 PM.
Originally Posted by silvcobra
Thats right you haven't driven a Supra and you probably haven't driven an '04 Cobra. A two-step is used in every type of car (not just turbos) to launch at lower rpm (of your choice) while floored. Myclone doesn't count because he has an auto which will put load on the system when you try to go and hold the brakes.
edit: myclone your are right about the 2 step working on a turbo car, didn't think much on it at first.
edit: myclone your are right about the 2 step working on a turbo car, didn't think much on it at first.
Originally Posted by myclone
100% correct. Two step set at 5800=11psi for me.
You can do the same thing with tuning if you want since all the 2 step does is cut spark to various cylinders and the unburned fuel is what spools the turbo when theres no load. Fatten up the tune or pull the timing way back for the launch and tah dahhh...boost comes up before you launch. If your engine management allows it just wire in a momentary button to actuate another set of fuel maps to richen it or timing maps to retard the timing.
I took the 2 step off my truck since I dont like the sound a V6 makes while its up against the box and once I got things sorted out I can build more boost than the brakes can hold (automatic trans) anyways. Besides a V6 exhaust note sounds bad enough as it is without something like a two step making it worse
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silvcobra,
Your car still has a blower on it and you havent converted to a turbo correct? If so comparing a blower to a turbo is apples and oranges. A blower will make boost with no load very easily while a turbo motor will make very little if any unless you start loading the motor down with the weight of the vehicle (ie give the motor something to strain against) or get unburned fuel into the turbine side so it can light off. Turbos require heat as well as the flow of exhaust gasses to spin it where as a blower is ran off the crank (usually) which means the harder you twist the motor the faster the blower spins producing more air flow (ie boost).
Not being an ass here just pointing out that its not a matter of "just rev it to where you want to leave" on a turbo vehicle.
The alf picture is just freakin nasty.
You can do the same thing with tuning if you want since all the 2 step does is cut spark to various cylinders and the unburned fuel is what spools the turbo when theres no load. Fatten up the tune or pull the timing way back for the launch and tah dahhh...boost comes up before you launch. If your engine management allows it just wire in a momentary button to actuate another set of fuel maps to richen it or timing maps to retard the timing.
I took the 2 step off my truck since I dont like the sound a V6 makes while its up against the box and once I got things sorted out I can build more boost than the brakes can hold (automatic trans) anyways. Besides a V6 exhaust note sounds bad enough as it is without something like a two step making it worse
.silvcobra,
Your car still has a blower on it and you havent converted to a turbo correct? If so comparing a blower to a turbo is apples and oranges. A blower will make boost with no load very easily while a turbo motor will make very little if any unless you start loading the motor down with the weight of the vehicle (ie give the motor something to strain against) or get unburned fuel into the turbine side so it can light off. Turbos require heat as well as the flow of exhaust gasses to spin it where as a blower is ran off the crank (usually) which means the harder you twist the motor the faster the blower spins producing more air flow (ie boost).
Not being an ass here just pointing out that its not a matter of "just rev it to where you want to leave" on a turbo vehicle.
The alf picture is just freakin nasty.
Originally Posted by rotorsownyou7
I have driven a Stock 03 Cobra, but I didn't launch it or race it. I did hit it a little from about 30 or so to about 70. I love the sound.

Originally Posted by silvcobra
I like the sound of a 4v with a centrifugal blower and turndowns. The hEATON is cool but nothing sounds like a centrifugal at a low idle.
Originally Posted by rotorsownyou7
What kind of turbo setup is on your truck?
), old T3 garret hybrid with a 60 series compressor side, and owner fabbed DP.Going A/A IC with a GTQ42 as soon as I finish the headers Im building as well as figuring out how to get a 3.5" down pipe to fit while keeping the AC and not cutting on the truck any. Its like stuffing 10lbs of poop in a 2lb bag under there
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Originally Posted by myclone
Going A/A IC with a GTQ42 as soon as I finish the headers Im building as well as figuring out how to get a 3.5" down pipe to fit while keeping the AC and not cutting on the truck any. Its like stuffing 10lbs of poop in a 2lb bag under there
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Originally Posted by GaRn
haha oh wow... i had to actually think about wtf you were talking about there for a sec..
Haha, me too.
Noone else has anything interesting to start another argument, I mean, conversation?





