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  #16  
Old 02-26-2014 | 09:27 PM
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Originally Posted by SM_ATL
^+1. Only in Normal when lazy and cruising. In Sport/Sport+ 90% of the time and throttle response is fine (+quicker PDK). Maybe the Sprint Booster makes more sense if you do not have the Sport Chrono package that includes the Sport+ mode?
I do not have sport+ or PSE
 
  #17  
Old 02-26-2014 | 09:34 PM
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Originally Posted by SLK320
I do not have sport+ or PSE
Then this product, or a tune, would be useful.

I don't think I'd ever buy this, but I have definitely noticed the "sloth-like" pedal feel in non-Sport modes. Sure, I drive in Sport most of the time, but for early morning drives in non-Sport mode, you really, really need to give the car a good push of the throttle to get it going from a stop (7MT here).
 
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Old 03-01-2014 | 05:10 AM
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I had a 991s with. Sprint booster

Definitely worth the price tag


It's basically does what putting the car in sport mode does
Doesn't add any hp
But throttle is MORE responsive
 
  #19  
Old 03-01-2014 | 06:37 AM
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Originally Posted by SUNNY991
I had a 991s with. Sprint booster

Definitely worth the price tag


It's basically does what putting the car in sport mode does
Doesn't add any hp
But throttle is MORE responsive
Good to know. Question I have is if you have SB on AND Sport mode on, what was the difference then, if any?
 
  #20  
Old 03-01-2014 | 08:33 AM
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Originally Posted by PorscheCrazy
Good to know. Question I have is if you have SB on AND Sport mode on, what was the difference then, if any?
Good question. If i understand well, the car does not even know that you have a SprintBoost and the signal coming from the pedal will be amplified the same way whether you are in standard, sport or sport+ mode.
This means that Sports modes should see an increased throttle response too.

The throttle response may in that case become too sensitive to your taste in Sport/(+). I would personally consider SB only if I did not have SportChrono. I tried SB on my Cayman R that had SportChrono, liked it in the beginning but ended up removing it as Porsche's settings were the most balanced across all modes.
 
  #21  
Old 03-01-2014 | 04:19 PM
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Subscribed.
 
  #22  
Old 03-08-2014 | 12:52 PM
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I got my Sprint Booster in the mail yesterday. I looked at the gas pedal assembly and I don't feel too confident about trying to reach for the wires and plugs back there. I have an appointment on Monday for my buddy's shop who will install it for me. Unless someone knows an easy way to disconnect the gas pedal assembly?
 
  #23  
Old 03-09-2014 | 01:39 AM
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My guess is that it could be helpful for street driving in non-sport mode, especially if it eliminates any initial throttle lag. But for track driving, it may actually be detrimental, turning the throttle into an on-off switch when instead you want fine, linear control over throttle inputs when driving near the limits of adhesion.
 
  #24  
Old 03-09-2014 | 08:53 AM
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Originally Posted by paradocs98
My guess is that it could be helpful for street driving in non-sport mode, especially if it eliminates any initial throttle lag. But for track driving, it may actually be detrimental, turning the throttle into an on-off switch when instead you want fine, linear control over throttle inputs when driving near the limits of adhesion.
The Sprint Booster has three settings: Off, Daily Driver, and Sport Mode.

I found the unit to be quite helpful on my ZO6 and Hemi Challenger: it made the accelerator much more linear.

I remain in Sport-plus when driving the 991, so I don't really see a need for the Sprint Booster in my car.
 
  #25  
Old 03-09-2014 | 09:24 AM
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Originally Posted by SLK320
I got my Sprint Booster in the mail yesterday. I looked at the gas pedal assembly and I don't feel too confident about trying to reach for the wires and plugs back there. I have an appointment on Monday for my buddy's shop who will install it for me. Unless someone knows an easy way to disconnect the gas pedal assembly?
If you have a couple of hours today, you may want to fiddle with installation according to these instructions. It is for a 997, but assume directions are more or less the same.

https://www.6speedonline.com/forums/...ns-w-pics.html
 
  #26  
Old 03-10-2014 | 04:49 AM
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Subscribed, would like to hear your opinions of it in sport mode as I don't have sport chrono.
 
  #27  
Old 03-10-2014 | 05:54 AM
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Originally Posted by PorscheCrazy
If you have a couple of hours today, you may want to fiddle with installation according to these instructions. It is for a 997, but assume directions are more or less the same.

https://www.6speedonline.com/forums/...ns-w-pics.html
Thanks for the link, it was interesting to read the 997 thread on the topic. I'll stay tuned on the 991 thread. Curious to get feedback, esp from owners who have Sport Chrono.

The link to the white paper coming from the 997 thread is also useful to get a detailed explanation about what the SB does and how: http://www.crosslake.net/~dbipes/spr...intBooster.pdf[/QUOTE]

Reading it, I am concerned that, with the SB, one could activate the kickdown before having gone through 100% of the pedal travel (and having felt the pedal 'resistance' of the kick down). Kickdown is something that I dislike on the track as I want to remain a 100% in control of my gear all the time. If SB makes this worse, it is a complete no go for someone taking is car to the track I think.
 
  #28  
Old 05-24-2014 | 06:18 PM
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Anyone with SC installed the SB?
 
  #29  
Old 05-25-2014 | 10:10 AM
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Originally Posted by KonaKai
My opinion is do not mess with the computer programs that Porsche spent millions of dollars and thousands of hours testing, and to which can have unintended consequences on your whole ecosystem of PSM, PDCC, PTV etc., to say nothing of the safety concerns of messing with your throttle pedal (again, without the r&d to back it up). I understand why they program a "lazy throttle" for Normal mode but I have to believe that in Sport or Sport Plus, the throttle response is the way it came from the factory for a very good reason.
+1... While I agree that normal mode has a pretty sluggish throttle response and for purposes of a more aggressive response this might be helpful.. But sport or sport+ accomplishes the same thing...

I also don't understand how this would help with "lag" which I would define as a delay between throttle and engine response.. I think what people really mean is you just have to push further down on the pedal.. That isn't lag.. Lag is a delay, such as what you can get with a turbo..

If there is a lag, it would be a function of the ECM and not the pedal. Al this thing does so change the response curve of the pedal so that the ECM sees a more aggressive input..


An ECM solution can do the same thing without requiring inserting this into the drive by wire chain..

Honestly This kind of solution has safety implications.. If this thing fails it could go WOT at the wrong time..

No thanks
 
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