Wot is Wot. But the factory lag is removed and there is nothing that you can do about that regardless how fast you press the peddle down. And this is aside from a more aggressive responsiveness that this devixe gives you. Its a hell of a differece when both of those are combined.

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When you redo the throttle maps in Uprev from scratch the throttle lag is removed,but most people won't take the time to do this but I have.:tup:

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Right. But the side effect of increasing the signal by 30% means that the car will think it is at WOT at 70% pedal travel. The white paper showed it pretty clearly with charts of the throttle position and the signal sent to the car. You can't have it both ways. If you increase the rate the throttle opens, you reach maximum earlier.

I'll be installing the Apexi Version soon, I will keep you guys updated. I figured I would go with a company Im very familiar with and had great experiences with.

I completely agree that WOT is WOT. Thats understandable. My point is that the Sprint Boosters lag removal and quicker response will get you up there alot quicker. Therefore, the one WITH it will most likely outrun the competitor. This ofcourse having 2 stock 370z with the exception of one carring a sprint booster. I don't know why so many try to discredit what this little device does. It really is the best bang for your buck. HANDS DOWN.

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Considering it costs half of an Uprev tune that accomplishes pretty much the same thing and a lot of other stuff as well, I'd argue the exact opposite.

Edit now that I'm not typing on my phone- Of course you'll feel a noticable difference with the Sprint Booster. I've never argued that fact. Since you're compressing 100% of the throttle opening into the first 70% of pedal travel, it'll feel much better. My point is that all it's doing is moving you into a different area of the stock throttle tables faster. That's all it can do. It has no access to the ECU. The values in the stock tables suck. Why not just use Uprev to adjust the values in the tables? You'll get the feel you're looking for, but preserve the shape of the throttle curve and not hit a dead spot between 70% and 100% pedal travel.

There is already various testimonies on this forum from people with uprev tunes that have stated their uprev tune did NOT have such a big impact on throttle lag and responsivemes as the sprint booster did. Now, their either all lying or all paid 600 dollars for bad tunes. Ill be needing a tune soon when my headers come in and according to countless testimonies across multiple forums and various owners from audi, BMW, chrysler, nissan, suburu, etc etc... it seems to keep everyone happy. I think its pretty much speaks for it self. Its been well worth every single penny spent on. It still catches me off guard as a matter of fact. Everybody seems to love what it does. Have you tried this device? I'm just wondering.

Oh and their is a 09 GTR bieng sold on cars.com for 55k and 25, 000 miles. Lol



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Like I said in my last post they did not get the throttle tables tuned they only got a/f,idle speed,timing stuff like that most tuners don't know how to tune the throttle maps if they did you wouldn't need the booster.

It's not a given that a tuner is going to spend a lot of time dialing in the throttle tables. Most likely you'll have to make sure they know it's a priority for you. It's not a knock on the tuners, but the vast majority of them are spending an hour, maybe two dialing in the overall tune and not spending a great deal of time on the throttle tables.

http://www.the370z.com/tuning/43384-...tle-uprev.html
There's a lot of people who have gotten their throttle dialed in very well using Uprev. You could take one of the throttle tables from there and have your tuner do something like that.

If the Sprint Booster costs $300 and only deals with artificially compressing the throttle signal vs. $600 for a full tune that adds power, adjusts the throttle tables, lets you control the fan temps, etc, I just don't see the value in the Spring Booster. You do. I'm glad you feel that your money was well spent. At the end of the day that's all that's important. I'd personally rather change the tables themselves than use a device that forces the throttle to another cell on the map.

I ran into that thread before I bought the sprint booster. Even though it does improve throttle response it seems to still cause trouble down the road as updates become available. Would this be another 300-600 dollars to adjust? A tune is well worth the money and at some points required.

Not everybody needs an all out tune. Why pay 600 dollars for a stock z all because you simply want more responsiveness with no need what so ever to change the timing on fans when you can just settle for 280 and have one hell of a change.

Guess it just boils down to that persons specific sitiation. I will be getting an all out tune some time in the near future because Ill pretty much be required to. I think then more then half a thousand dollars are well worth it.

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Since you're going to get a tune anyway, take one of the maps from the thread I linked with you. Have the tuner program that in. That way you can give us your impression of a good Uprev throttle table vs. the Sprint Booster.

Also, you're in TX. That's reason enough to tweak the OEM fan settings.

if you plan to get a tune anyways isnt best to just throw in the extra few hundred for uprev and get rid of the lag? would the sprintbooster and uprev combination improve it even more?

That's what we're trying to determine. If somebody takes a "known good" throttle table with them when they get tuned, it'll be easy to compare A vs B. Right now, we don't know who had much, if any, time spent on the throttle tables when they got tuned. It's not necessarily one of the things a tuner adjusts.

The stock fan has really never been an issue even in Texas. Arizona seems to take the cake. The sprint booster could be shut off at a tap of a button so it would be fairly simple to compare both once a GOOD tune on throttle response has been placed. There have been several people on here with both that claim the sprint booster does a better job but we don't know if their tune had emphasis on throttle lag and response.

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Exactly. My wild *** guess is that with a properly adjusted throttle, the feeling will be fairly similar.

Is this the same as the spring booster? it says it only costs $59.50 vs $299 for the sprint booster

APEXi Electronics - SMART Accel Controller - Import Dynamics - Performance & Racing Auto Parts- AEM - INJEN - GREDDY - SKUNK2 - HAWK - DBA - ACT - HKS - TEIN-

http://www.sprintboosterusa.com/p-18...ssan-370z.aspx

I have never tested that device. Seems like it does the same thing. I've never heard a testimony over that though. Youve might have found similar performance for a better bargain.

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From Sprint Booster's web site

"• Sprint Booster does not increase Horsepower.

• Sprint Booster does not reduce your 0-60mph times.

• Sprint Booster DOES make your car 'FEEL' faster.

• Sprint Booster is not for everyone."

Draw your own conclusions. ;)

I wouldn't buy one, but no one can deny that a placebo effect is an effect none the less.....

Thats just the harness. I'm running the Apexi version and love it. Worth the money in my opinion.

When can I check it out tony??

That's what I thought. Since Apexi is "JDM Tyte yo" I knew that wasn't right. How much for the complete unit?

Possibly this weekend Luke. Whats your schedule look like this weekend?

I ordered through a local shop. I believe it was around 280.
You can probably find it online for a little less. Just remember its vehicle specific.

Guys, this looks like it attaches to the OBDII port. Is that correct? As FYI, the sprint booster attaches to the throttle body via accelerator pedal.

No its plug and play it connects between the gas pedal and stock harness plug.

So I'm looking to do my first UpRev next month with all my mods, asking for new throttle maps will do the same thing as this Sprint Booster? Was there additional charges for it done?

is this mod more responsive than http://www.350z-tech.com/forums/atta...t-s3600081.jpg
?

2 for regular mode...duh. need 4 to equate race mode on the SB... ;)

Question on installing, with smart keys it would throw a cel when installing on my Audi and I had to leave key in house, keep door open and hood till everything went off. Is this the same for the 370? I just ordered a sprintbooster for my 2015 sport touring roadster, auto. Please advise, as I impatiently wait for ups...

Brian in Bakersfield...

Does this remove the lag when you are accelerating and let go of the throttle and stepping back on the throttle?

Not sure if it's just a G37 7AT thing or for 370Z 7AT too. I get a flat spot with at least a second of delay before power kicks in again when letting go of the pedal.

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I put mine in a month ago, simple to put in. I'll say this much, it is staying in red mode and it is not being removed. It completely got rid of the lag. I do not have a tune on my Z as I purchased a 15 this spring and will not tune till warranty runs out.
When that happens will prob go the TT route.

That sounds like your transmission shifting up as you get off the throttle and back down when you get back on it.

Just ordered one. I have an UpRev tune already so we'll see if it makes a difference in throttle response. If not, I have 30 days to return it and get my money back. I will let you guys know the results.

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Dammit, now I have to spend money again :)

So the Sprint booster won't actually change anything since it's the transmission selecting the gear being the issue instead of pedal response?

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Well, I don't have a Sprint Booster to say for certain. It sounds like it will help you get to full throttle faster when putting the pedal to the floor at low RPMs, but it won't decrease the time required for your transmission to shift.

i'm curious how these "Sprint-Booster's" work in conjuction from a good dyno tune,,,i've seen the sprint booster video & it looks impressive on throttle response,,,but myquestion is? can you get the same throttle response from a tune/just can't select the aggressiveness?? input welcome.
ty,joby

:icon17: :rofl2:

If you already have uprev then why not have the tuner just make a more aggressive throttle map? Inwent the ecutek route and couldn't imagine a more aggressive throttle, actually seriously considering making it a little slower at just off idle.