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1G Stutterbox RPM on 1g FWD?

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4gfun

Supporting VIP
2,009
55
Dec 10, 2007
Ask Me, Virginia
I was wondering if anyone has a rough RPM to use on a 1g FWD for stutterbox? I'd more than likely running stock size street tires. This is for my 94 fwd laser, mods in signature.

I'd like to know if anyone here uses stutterbox on their FWD at the track for launches and if so at what RPM.

I'd much rather do that than having to *think* about how to launch all the time. I'd prefer the consistency even if not absolutely optimal.

Do you use stutterbox on your FWD? If so, at what RPM?

Thanks
 
Well, it depends on your launching technique but I'd say maybe 2700-3000 to start. You'll have to adjust from there. Also what tires are you running? Off-Brands? Potenzas? What are they?
 
Well, it depends on your launching technique but I'd say maybe 2700-3000 to start. You'll have to adjust from there. Also what tires are you running? Off-Brands? Potenzas? What are they?

The car has bald Toyo Proxes on it. The car is not running yet, but I'd like to get all of my ducks in order between projects.

I may turn it into an performance ecoproject as my 93 TSI AWD slowly becomes a parts car to support the 94 Laser FWD Turbo and the Galant VR4, but I'd still like to make the most of it as far as launching goes.

Could end up with Goodyear assurance fuelmax tires as a possibility.

Thanks
 
Well launching depends on a lot of variables but start at 2700-3000 and see where that gets you. Remember when launching to release the clutch until the point right where it starts to move forward then release the clutch quickly. Don't drop the clutch, but release it quickly, just fast enough to where it is smooth and wont break the tires loose from the sudden jerk in power. It will also be easier on your trans. Being FWD on skinny eco tires it will definitely take some throttle modulation on your part to get an idea launch, but the 2-step or whatever you want to call it will help with consistency.
 
Thanks, this is all coming back to me. I'll start off at 2700 RPM and see if it bogs or spins. I guess the biggest thing is seeing if it has an LSD installed. That might change things a bit, but it won't change my starting point.

I appreciate this.
 
I'm bone stock 1ga fwd auto and use 3000 shutter and anti lag but I'm also brake boostin soo it's not the same but even with out shutter on I still spin a bit off the line if u want to not spin I'd suggest around 2700 like the other guys are saying kinda comparing apples to oranges here but hope it might help
 
I'm bone stock 1ga fwd auto and use 3000 shutter and anti lag but I'm also brake boostin soo it's not the same but even with out shutter on I still spin a bit off the line if u want to not spin I'd suggest around 2700 like the other guys are saying kinda comparing apples to oranges here but hope it might help
It does help. It's apples to apples as far as I see it since the RPM window is very close so far.
 
You might have to stay on the stutter for a sec to build boost at that RPM though. Especially having those cams. Just remember as soon as you let out the clutch the turbo is loaded and it'll spool pretty quick if you launch as stated above. If you just drop it then it can bog and not give a chance for the motor to load and spool the turbo. And yes you are right an LSD can obviously have a profound effect. Hoping you do have one in there so you can be more consistent :).
 
Glad it helps I'd probly hit it higher but at 3k I start driving through the brakes so I'm stuck at 3 once it starts boosting it pushes but the studder box keeps it from moving so unless I get better brakes that what I use
 
Glad it helps I'd probly hit it higher but at 3k I start driving through the brakes so I'm stuck at 3 once it starts boosting it pushes but the studder box keeps it from moving so unless I get better brakes that what I use
Not to de-rail the thread, But a suggestion for launching if you're driving through the brakes is try this. 1.) Put it in neutral 2.) Pump up the brakes a few times and push down hard. 3.) While continuing to push down, rev the car up a couple times. This will help with the vacuum assist on the brakes and you should feel the pedal sink down a little more. 4.) Put it in D or 1st and give about a 1/4 throttle to load the turbo. Once it starts spooling, gradually roll on until it stalls the converter. 5.) Once it is stalled, floor it and release the brake. This works excellent with AWD autos as well of any make and model. It takes a couple tries to perfect and get a feel for but you should launch much faster if you do not spin.
 
You are derailing nothing. I am in the closet auto lover! :) Thanks for the tips.
 
Here's my burnout n,launch ..I run 41-4400 with slicks and 33-3500 on street tires I'd rather spin a lil than bog... Just practice and find that sweet point

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That was crazy. I didn't hear any wheel spin at all. I had to watch the speedo to see that you took off. Nice.
 
As stated before there are many many different variables to account for. it all depends where and when it's being used Examples below.

Track (tires grab way better) turn it up to 3500 for street tires I'd say 4000 for slicks. that's accounting for a good burnout.

Street after a good burnout I'd say 27-3000 rpm. play with it all from those numbers see what gets a better time at the track.


On my awd I have it set to 4000 and u light up the fronts on the street. And never took this car to the track
 
Not to de-rail the thread, But a suggestion for launching if you're driving through the brakes is try this. 1.) Put it in neutral 2.) Pump up the brakes a few times and push down hard. 3.) While continuing to push down, rev the car up a couple times. This will help with the vacuum assist on the brakes and you should feel the pedal sink down a little more. 4.) Put it in D or 1st and give about a 1/4 throttle to load the turbo. Once it starts spooling, gradually roll on until it stalls the converter. 5.) Once it is stalled, floor it and release the brake. This works excellent with AWD autos as well of any make and model. It takes a couple tries to perfect and get a feel for but you should launch much faster if you do not spin.



Thanks for the Input will have to try it I'm down for a little bit for now for upgrades so I can see the problem only getting worse off from here plus now I have to re- tune for the new set up but will deff keep it in mind
 
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