Bumping a very old thread - Does the sprint booster help the god awful throttle lag that occurs once the car is at operating temp? I'm one of the people experiencing bogging from a dead stop and terrible throttle input at lower RPMs - if I put my foot to the floor at 2500 RPM there is ZERO pick up.

Will this take care of it or do I need to go to a dealer to have them take a look?

The dealer won't be able to do jack squat for you - the stock throttle lag is terrible. A tune is the proper correction for throttle lag :twocents:

Sprintbooster simply increases voltage and tricks the car into thinking you pressed the gas pedal further down than you actually have. Overpriced for what it is IMO. But there are plenty of people who have been happy with their results using it.

It helped out my throttle lag noticeably, it made driving the Z a lot of fun. There will always be mixed feelings about the Sprint Booster but all in all I really enjoyed it.

I'm actually selling mine for $190 shipped anywhere in the U.S, I have ECUtek now so there's no use for it now, lmk.

http://www.the370z.com/parts-sale-pr...ml#post3552463

I had a SprintBooster a couple of months back, but I have since taken it off and sold it. It does help the throttle lag a bit, the problem is that you run out of pedal travel really early and it feels weird to push the accelerator half way and have no more input after that.

I'm back to stock (awaiting a tune to address throttle response) and I much prefer it that way than with the Sprintbooster. However, don't take my word for it, try it out first and see how you like it.

:twocents:

I still have mine in my Z. It's good, not great but good. Improves the throttle lag.

so it is same as if you pushed the gas pedal more..... thanks for the clarification.

not really cause it multiplies the voltage vs otherwise a linear input from ur foot. it's like using positive expo on your RC car.
da last time i checked speed of electricity was faster dan my foot.

i see... i imagine that might make the manual cars harder to drive smoothly in between shifts especially from the 1st to 2nd gear.

not if u get use to it. i can drive fine. smooth shifts and all.

It actually smooths out your shifts because the rpm spikes quicker than without. Ive had mine on red almost a year and no way it's coming off unless I finally decide to get tuned or selling my the car.

Sprint boosters work. Depending on the setting, it reduces or eliminates the electronic delay when you press your accelerator pedal. As cars are now drive my wire, the manufacturers purposely put a .4-.5 second delay on the accelerator as a "safety" devise so the car gas pedal does not feel jumpy. (It mimics the old gas pedals that were drive by wire.)

With that said, the effects of a sprint booster can also be achieved through a tune and reprogram of the ECU.

I recalled my M3 had that pwr button which did the same. It made the car quite jumpy and I didn't like it at all.

I experienced that slight delay on the Z with the air on a couple of times, but I think it is fine with normal driving.

I just installed one about 2 hours ago. Tomorrow I am going to check it out if it doesn't rain. Throttle response improved after my Uprev tune so this should be a great finisher. I'll let you know when I am done with the road test.

Installing SprintBooster after a tune is pretty much pointless since your tune should already address the throttle lag. All you are doing is essentially shortening the gas pedal throw so that you hit WOT at around 70% pedal travel.

30 day money back guarantee. If it is not an improvement, back it goes. I'll report back. I improved my clutch pedal by upgrading. This is just an experiment. I'm hoping it succeeds. My throttle still leaves a little to be desired. My car roars no doubt. But if it's crap it goes back. If not it stays. Ill shoot you straight on the results.