throttle response & acceleration
 

wanting to increase throttle response and acceleration on my Z thinking about doing a pulley kit NST or Stillen and looking at the sprint booster, before i get a tune any input or info is great thanks guys

Sprint Booster is an option you should consider. Use the search function and you will find my review along with other recommendations. :tiphat:

It really does work. I am very impressed.:driving:

:iagree:

I have an NST pulley, and I really like it. However, get a tune. Seriously the best mod you can get to help with it. Sprint boosters might but what you're really looking for but with those there's no difference between pushing the pedal past 60% or the floor.

I think the best combo for that would be a pulley sprint booster and tune. Dont k ow if an uprev can help as well. Does anybody have a DIY with a sprint booster?

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Yeah you plug it in, goes between the pedal's wiring harness. UpRev can reduce the throttle lag/acceleration delay and IMO it's the better way to go.

OP If you're looking for cheap, just do the sprint booster. If you do the pulley you should also get a tune (UpRev or ECuTek).

What if you add a sprint booster then an uprev tune? Do you think it'll defeat the purpose of either or, or will it actually help?

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All the sprint booster does is amplify the throttle signal. It'll feel peppier at part throttle, but WOT will feel like it's occuring at less than full throttle. For the cost of the sprint booster, you're well on the way to paying for a tune. Get the tune. It comes with other nifty stuff, as well as more power. Intakes can also improve throttle response. If you're going to get a tune, get any other mods you may want before the tune so you don't have to do it twice.

I'm not going to get into the pulley debate here. Many people experience good results. There is also the potential for serious issues. Do your research on that one.

Well said.

With sprint booster it amplifies the signal like stated. And what that means is that when you put your foot down 20% is outputting some higher number, lets just say 35%. That said, you'll get to a certain point where there's no difference between the position you're in, say 80% and the floor. Having the sprint booster is just like putting your foot down harder. Just try the tune first before you spend another $200 or whatever a sprint booster runs. I personally don't know anyone running a tune AND a sprint booster, but if there is someone please chime in.

This guys is running both which is why Im asking. I have already asked him. Just waiting on reply.

http://www.the370z.com/members-370z-gallery/62396-johns-sweet-na-build.html

I think both would be quite helpful. The uprev would allow more power output while the booster would allow a faster reaction between your foot peddle and acceleration. As apposed to the delay.

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UpRev's throttle remapping capability obviates the need for the Sprint Booster.

As other have commented, all the Sprint Booster does is tell the ECM that you are pushing the pedal farther than you actually are and remapping the throttle control with UpRev (or other tuning software/hardware) accomplishes the same thing. The upshot is that if you plan on buying UpRev, you really won't need the Sprint Booster.

You can adjust the throttle with Uprev. If you can press the gas a little more than you think you need, you've just replicated the sprint booster for free.

You may wait a while on John's response. He's away from his car, and there's significant tuning required before it's dialed in.

I have a friend running both and he swears this is still a difference with UpRev and the Sprint Booster... He can definitley tell when the Sprint Booster is off and he has had throttle mapping and lag removed via UpRev too. The bottom line is, it amplifies the signal and priovides a quicker throttle response than your foot can deliver. No matter how fast you push your foot, the Sprint Booster will do it faster... with or without UpRev

He has sprint booster yes but doesn't have a tune yet. Plus he did an engine build, cleaning his heads up, changing the valve springs, exhaust camshaft is more aggressive as well. So it's kind of tough to compare a well built machine like his to a standard car that just has a sprint booster.

Edit: I seriously don't get why everyone is so afraid of a tune. There's hundreds of threads on tuning and tuning capabilities, there's also threads on sprint booster as well. Do some freaking research folks.

Yeah, his experience will not be applicable for the most part.

I don't think anybody is afraid of a tune. As a matter of fact I think a tune is awesome because it extracts more power. My deal is figuring out wheather a sprint booster and tune would compliment each other rather then defeating each others purpose. I have heard that a tune doesn't remove as much lag as a sprint booster but will bring out more power, which is why I bring up this question. Would they compliment/work with each other or not.

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Get the tune first, and then see if you want more response than what you'll get through the tune.

Then buy both and find out.

http://www.the370z.com/tuning/49651-sprintbooster.html

OP of that thread had one with a tune.

Or just switch to a cable throttle system.

I'm getring both regardless I just wanted input before hand. I'm still waiting on parts to come in so dyno tuning will be a necessity either way. I'll install booster after the tune and see if there is STILL a difference. I'm sure there will be. Hope they compliment each other.

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Sounds like a plan. I'd say worst case scenario is you won't notice the difference I couldn't see how they would produce a worse response when combined.

A little research will answer your questions. The FSM has a good description of how the stock system works. You should be able to find out what the booster is doing from the manufacturer (website, manuals, &c) and/or reviews. Read through the topics on this site and others about remapping the ECM for better throttle response and using boosters.
I don't have any personal experience with either remapping or boosters but here's what I found on the Intertubes.

As far as I can tell, you can do everything with remapping that you can with the boosters. Ie, if you adjust the map via UpRev or other tuning software, the booster is not needed.

You could set things up so that the two complemented each other but that would just be making things needlessly more complicated since remapping alone will do the job.

YMMV

:tup:

Don't know if you have a 6mt or not op, but if you do the best gain you will get or throttle response and acceleration will be through a lightened flywheel/clutch combo and you will rev like a motorcycle with quick response unlike the slow lumbering double blipping required with the stock unit.

Throttle response will be much better with an A/F ecu tune.

I have a sprint booster. Love it. When the setting is in race mode (red button), it is night and day difference between that and stock. The throttle is so crisp, maybe even too crisp. Did it make the car faster? No, but it definitely made it more responsive. And no, its not the same as just pushing down more. Our throttle's have this dead spot when you approach WOT. With the sprint booster, you don't have to approach that dead spot to get the car going.

:iagree:

Well said. I totally agree.

Sprint Booster works as advertised. I also maintain it in the Red setting. As a matter of fact, I have pulled the change cable altogether. Pretty cool this allows you to do that!!

Sprint Booster does change the shape of the curve, but keep in mind zero is still zero, and WOT is still WOT. Everything that happens between *is* a function of your foot, and you can make the car do the same thing by adjusting your foot. You may prefer the curve you get from Sprint Booster because it makes things feel more natural for you, but it's not doing anything you can't do manually.

UpRev tuning is mostly similar. It's very very slightly better in that you can also open up true WOT at low RPM (which the ECU normally limits a bit until the revs get up more, but that's in the ECU, Sprint Booster can't change that), but the value in that isn't huge.

In both cases, keep in mind that every change there comes with a tradeoff. The curve still has to start and stop at approximately the same values it did before. If you make one part of the curve ramp up significantly faster, there has to be a flatter area elsewhere to compensate.