Sprint Booster review for 370z 7 speed AT

abakja1 · 09-04-2010, 03:46 PM

Quote:

Originally Posted by cossie1600

Not to be a downer. I just read the description of the product, all it does is recalibrate your pedal to make it more aggressive. You can do the same thing simply by hitting the gas pedal harder. A tune will actually change the tip in, resulting in more power and sharper response. Wouldn't money be better spent in that area?

My Prius has the same feature. It feels cool, but it doesn't do jack $hit.

That is true with the pedal, but response time is different. I honestly don't now how you can say that you wnt more resonse by going 3/4 pedal instead of 1/2 pedal day to day. Sprintbooster is legit, as i had it in me e55 and was cheap on ebay new. The e55 was an 05 though.

Its just expensive since the z is a new platform. Wait in a couple of years or search the FS ads and you may get lucky in a year or so.

Westwood · 09-04-2010, 04:24 PM

Quote:

Originally Posted by cossie1600

Not to be a downer. I just read the description of the product, all it does is recalibrate your pedal to make it more aggressive. You can do the same thing simply by hitting the gas pedal harder. A tune will actually change the tip in, resulting in more power and sharper response. Wouldn't money be better spent in that area?

My Prius has the same feature. It feels cool, but it doesn't do jack $hit.

you gotta try it to understand, tell me why then when i smashed the pedal i barely spin in stock mode and with that thing on race its goes side ways? and never in life youl have the feelin of a Z in your prius

cossie1600 · 09-04-2010, 08:31 PM

Quote:

Originally Posted by Westwood

you gotta try it to understand, tell me why then when i smashed the pedal i barely spin in stock mode and with that thing on race its goes side ways? and never in life youl have the feelin of a Z in your prius

Read the description of the product, all it does is simply change the throttle position. Let's assume you put your foot 50% down, instead of opening the throttle at 50%, they open it at 75%. How is that changing power? You can do the same thing by hitting the gas pedal harder.

Westwood · 09-04-2010, 09:15 PM

Quote:

Originally Posted by cossie1600

Read the description of the product, all it does is simply change the throttle position. Let's assume you put your foot 50% down, instead of opening the throttle at 50%, they open it at 75%. How is that changing power? You can do the same thing by hitting the gas pedal harder.

in a way your right cossie1600 but your still going to have throtle lag if you open it 75-100% stock.
and Awarded "Best New Product" at SEMA 2009

taken from their web site.

What happens in your 370Z when you hit the gas?

Usually, you get a full second of delay before you start moving. Sprint Booster eliminates this... you get a quicker acceleration from a stop.

The Sprint Booster is engineered to enhance the driving experience by providing increased acceleration time (eliminating delay) on drive-by-wire cars by continuously measuring and converting the digital signal and providing the ECM (Electronic Control Module) with a new and altered signal for much quicker response. The Sprint Booster improves response, increases pedal input sensitivity and delivers more impressive off the line performance you can really feel.

370z_2910 · 09-04-2010, 10:45 PM

so what is the difference with blitz throttle controller?

cossie1600 · 09-04-2010, 11:52 PM

Tip in/throttle plate openings are controlled by the ECU, not the pedal. The problem still lies within the ECU mapping, not the actual throttle itself. I am not saying the unit doesn't work (in changing how linear your throttle is), but you might want to look into ECU tuning instead.

370z_2910 · 09-05-2010, 05:15 AM

so that's mean, functionality of the blitz and the sprint are almost similar...

is how much you press your pedal...

am i right?

Westwood · 09-05-2010, 06:56 AM

Quote:

Originally Posted by cossie1600

Tip in/throttle plate openings are controlled by the ECU, not the pedal. The problem still lies within the ECU mapping, not the actual throttle itself. I am not saying the unit doesn't work (in changing how linear your throttle is), but you might want to look into ECU tuning instead.

ive read on the bmw/350z sites from people with tunes still having this problem so whats the deal?

Zeto · 09-05-2010, 10:36 AM

I have an Uprev tune and still have the delay issue.

WarmAndSCSI · 09-05-2010, 10:44 AM

Quote:

Originally Posted by Westwood

ive read on the bmw/350z sites from people with tunes still having this problem so whats the deal?

A tune cannot solve the inherent delay with DBW. While datalogging on my Evo, I found there was always a delay between the ECU sending the signal to open the throttle plate, or at least acknowledging that it had sent the signal, and the throttle position sensor actually registering the change. A device like this that actually adaptively ramps the throttle opening rate based upon your initial "punch" is a good way to compensate for this lag.

I know people are saying a tune can accomplish the same thing, but it simply cannot without re-writing ECU code or compromising driveability. I've messed around with DBW throttle tables on the Evo X extensively - you really don't gain anything over the stock settings. In fact, it consistently makes the car drive worse if you mess with the throttle tables too much, especially on a quick-spooling turbocharged car.

That said, I'd need to play around with a Sprint Booster on my Evo to make any fair judgment. It may really not do anything more than playing around with the throttle tables - it depends on whether it's actually "intelligent" or adaptive in any way.

Westwood · 09-05-2010, 02:32 PM

Quote:

Originally Posted by WarmAndSCSI

A tune cannot solve the inherent delay with DBW. While datalogging on my Evo, I found there was always a delay between the ECU sending the signal to open the throttle plate, or at least acknowledging that it had sent the signal, and the throttle position sensor actually registering the change. A device like this that actually adaptively ramps the throttle opening rate based upon your initial "punch" is a good way to compensate for this lag.

I know people are saying a tune can accomplish the same thing, but it simply cannot without re-writing ECU code or compromising driveability. I've messed around with DBW throttle tables on the Evo X extensively - you really don't gain anything over the stock settings. In fact, it consistently makes the car drive worse if you mess with the throttle tables too much, especially on a quick-spooling turbocharged car.

That said, I'd need to play around with a Sprint Booster on my Evo to make any fair judgment. It may really not do anything more than playing around with the throttle tables - it depends on whether it's actually "intelligent" or adaptive in any way.

by continuously measuring and converting the digital signal and providing the ECM (Electronic Control Module) with a new and altered signal for much quicker response so there's gotta be something more than just a diod or what ever it is that gives the signal to the ecu to have a better response and less lag?

ChrisSlicks · 09-05-2010, 03:21 PM

Quote:

Originally Posted by Westwood

by continuously measuring and converting the digital signal and providing the ECM (Electronic Control Module) with a new and altered signal for much quicker response so there's gotta be something more than just a diod or what ever it is that gives the signal to the ecu to have a better response and less lag?

Well for one it isn't even a digital signal, it is an analog signal at that point. There is no intelligence to this device, it does not connect to CAN or OBDII or anything except the pedal control unit itself. It is simply built to boost all pedal output voltages in the mid range depending on the "mode". The only lag it reduces is the speed of your right foot.

WarmAndSCSI · 09-06-2010, 01:43 AM

Quote:

Originally Posted by ChrisSlicks

Well for one it isn't even a digital signal, it is an analog signal at that point. There is no intelligence to this device, it does not connect to CAN or OBDII or anything except the pedal control unit itself. It is simply built to boost all pedal output voltages in the mid range depending on the "mode". The only lag it reduces is the speed of your right foot.

What I suppose it may do is some form of fuzzy logic on the throttle input signal. It may "learn" based upon what it supposes you're trying to accomplish - be it a quick 0-60 sprint, free-revving the engine, or easy highway cruising trying to save some gas.

Some basic calculus on the past x seconds of throttle input voltage could tell this little device quite a bit.

Who knows?

Westwood · 09-06-2010, 06:56 AM

logically if it was that simple i think there would be a ton of companies trying to sell knock off's on ebay but thats not the case. the only competition out there is BLitz and its even more expensive. someone needs to buy one and tear it apart lol

ChrisSlicks · 09-06-2010, 07:43 AM

Quote:

Originally Posted by WarmAndSCSI

What I suppose it may do is some form of fuzzy logic on the throttle input signal. It may "learn" based upon what it supposes you're trying to accomplish - be it a quick 0-60 sprint, free-revving the engine, or easy highway cruising trying to save some gas.

Some basic calculus on the past x seconds of throttle input voltage could tell this little device quite a bit.

Who knows?

From watching the videos and reading the descriptions I'm pretty certain that neither the SprintBooster or the Blitz have any intelligence. One video just shows a driver holding the throttle at a fixed position and then it progressively revs higher as he changes modes. This confirms that it is simply increasing voltage by a fixed percentage when the input is in a certain range.

I do have to congratulate Mini Mania on slick packaging and good marketing. Some people certainly like the feel of the more aggressively mapped pedal, and the fact that they are able to sell these at this price is impressive. I'm sure there will be a Taiwanese knockoff hitting the streets in a year or two for $99.

09-06-2010, 06:56 AM	#29 (permalink)
Westwood Track Member Join Date: Feb 2010 Location: Ottawa,Canada Posts: 745 Drives: C63 AMG Rep Power: 16	logically if it was that simple i think there would be a ton of companies trying to sell knock off's on ebay but thats not the case. the only competition out there is BLitz and its even more expensive. someone needs to buy one and tear it apart lol __________________ Mods: Stillen G3 \| Stillen lightweight crank pulley \| Berk hfc's \| Top speed pro 1 CBE \| Jic Magic y pipe \| 20" Vossen 9.5/10.5 \| Megan Coilovers \| Smoked JDM tail lights \| Blacked out headlights \| Sprint booster \| Shine Auto CF Front/Rear lip kit \| Evor R CF Side blades,CF fang cover,CF Nose Audio: Kenwood Excelon DNX9960 \| JL 1000w \| JL 12W6v2

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09-04-2010, 10:45 PM	#20 (permalink)
370z_2910 Base Member Join Date: Sep 2009 Location: BRUNEI Posts: 127 Drives: 370Z Rep Power: 15	so what is the difference with blitz throttle controller?

09-04-2010, 11:52 PM	#21 (permalink)
cossie1600 A True Z Fanatic Join Date: Jun 2009 Location: californee way Posts: 5,380 Drives: 370, Leaf Rep Power: 29	Tip in/throttle plate openings are controlled by the ECU, not the pedal. The problem still lies within the ECU mapping, not the actual throttle itself. I am not saying the unit doesn't work (in changing how linear your throttle is), but you might want to look into ECU tuning instead.

09-05-2010, 05:15 AM	#22 (permalink)
370z_2910 Base Member Join Date: Sep 2009 Location: BRUNEI Posts: 127 Drives: 370Z Rep Power: 15	so that's mean, functionality of the blitz and the sprint are almost similar... is how much you press your pedal... am i right?

09-05-2010, 10:36 AM	#24 (permalink)
Zeto Track Member Join Date: Apr 2009 Location: North NJ Age: 40 Posts: 766 Drives: 09 Pearl White 370Z Rep Power: 267	I have an Uprev tune and still have the delay issue.