GT4 - Unlocking the Power Potential!
#841
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100%. All of the cold start and moving the cars around without a subsequent flogging are contributing to that. The race cars get flogged on a routine basis which cleans out everything.
#842
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Originally Posted by BGB Motorsports
Just out of curiosity, do you get them more or less with Sport On? Obviously you get more snap, crackle & pop with the PSE flaps opened but on the way home the other night i was trying to tell if they do it even more often with the Sport Button in the ON position.
EDIT: just read above and if BGB says there is a point to the pops and crackles then great, I stand corrected. Still wish I could do without though.
Last edited by CAlexio; 11-16-2016 at 03:24 PM.
#843
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GT3 Intake Manifold/TB/Plenum swap, Do IT!!
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#845
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#846
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That sounds good as Im going with the ipd and cobb for now and maybe pipes next. Im more interested in a zingy top end than the torque low down hence why have done it this way around. I guess I miss the X51 in my 997 a little.
#847
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Any larger manifold mated to a bigger 82mm throttle body is going to increase power up top and fix the dip that causes the car to lose 20hp over 7200 RPM.
The X51 in the 997.2 was awesome and the X51 in the 991.1 is even better. Either way, with some better flowing intake and exhaust pipes and a tune, more power is available.
#848
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Unfortunately, I never had the chance to enjoy the x51 equipped 3.8.
But what the GT4 powertrain lacked as a worthy GT powertrain all
came around with CG headers, IPD Plenum and a tune. No more dips,
freer rev-out, more aggressiveness all over, perfect match now.
When doing my typical country road trip, I found myself often wriging
gears totally out and feeling a little underpowered anyway. Now I often
shift beetween 5.5 and 6.5 upm because of the meatier powerband.
With the option to rev it out when desired without the stock "dead"
feeling on top.
Peter
But what the GT4 powertrain lacked as a worthy GT powertrain all
came around with CG headers, IPD Plenum and a tune. No more dips,
freer rev-out, more aggressiveness all over, perfect match now.
When doing my typical country road trip, I found myself often wriging
gears totally out and feeling a little underpowered anyway. Now I often
shift beetween 5.5 and 6.5 upm because of the meatier powerband.
With the option to rev it out when desired without the stock "dead"
feeling on top.
Peter
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Daniels34 (12-14-2021)
#849
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Unfortunately, I never had the chance to enjoy the x51 equipped 3.8.
But what the GT4 powertrain lacked as a worthy GT powertrain all
came around with CG headers, IPD Plenum and a tune. No more dips,
freer rev-out, more aggressiveness all over, perfect match now.
When doing my typical country road trip, I found myself often wriging
gears totally out and feeling a little underpowered anyway. Now I often
shift beetween 5.5 and 6.5 upm because of the meatier powerband.
With the option to rev it out when desired without the stock "dead"
feeling on top.
Peter
But what the GT4 powertrain lacked as a worthy GT powertrain all
came around with CG headers, IPD Plenum and a tune. No more dips,
freer rev-out, more aggressiveness all over, perfect match now.
When doing my typical country road trip, I found myself often wriging
gears totally out and feeling a little underpowered anyway. Now I often
shift beetween 5.5 and 6.5 upm because of the meatier powerband.
With the option to rev it out when desired without the stock "dead"
feeling on top.
Peter
#850
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Experienced an X51 in a 2011 997.2 GTS the other day. It was love at first throttle lol.
In regards to the burble/overrun, my tuner is going to play around with some tuning files to see what effects they have on a 991GTS owned by jbgill6535, with the sole purpose of trying to reduce that sound. Curious to see how things come out but will let you guys know.
Take John up on that offer to experience the lightweight flywheel!
In regards to the burble/overrun, my tuner is going to play around with some tuning files to see what effects they have on a 991GTS owned by jbgill6535, with the sole purpose of trying to reduce that sound. Curious to see how things come out but will let you guys know.
Take John up on that offer to experience the lightweight flywheel!
__________________
Porsche Performance Specialist
John@Fabspeed.com
215-618-9796
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155 Commerce Drive Fort Washington, PA 19034
www.Fabspeed.com
Porsche Performance Specialist
John@Fabspeed.com
215-618-9796
Fabspeed Motorsport USA
155 Commerce Drive Fort Washington, PA 19034
www.Fabspeed.com
#851
Race Director
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Unfortunately, I never had the chance to enjoy the x51 equipped 3.8.
But what the GT4 powertrain lacked as a worthy GT powertrain all
came around with CG headers, IPD Plenum and a tune. No more dips,
freer rev-out, more aggressiveness all over, perfect match now.
When doing my typical country road trip, I found myself often wriging
gears totally out and feeling a little underpowered anyway. Now I often
shift beetween 5.5 and 6.5 upm because of the meatier powerband.
With the option to rev it out when desired without the stock "dead"
feeling on top.
Peter
But what the GT4 powertrain lacked as a worthy GT powertrain all
came around with CG headers, IPD Plenum and a tune. No more dips,
freer rev-out, more aggressiveness all over, perfect match now.
When doing my typical country road trip, I found myself often wriging
gears totally out and feeling a little underpowered anyway. Now I often
shift beetween 5.5 and 6.5 upm because of the meatier powerband.
With the option to rev it out when desired without the stock "dead"
feeling on top.
Peter
Ditto
#852
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Curious if anyone out there that has modified there GT4 had a prior 991.1 S. Do the mods make the car feel more like the motor when in the 911, as I miss the pull all the way to redline and the missing torque down low.
#854
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Originally Posted by Jimmy-D
As stock I find the GT4 to be more alive than the 911-S
#855
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I 'm going to install in the next two weeks the ipd plenum, the 82mm throttle body and the cobb tune... I already have the sport headers and the bmc filters.... I really like to read other opinions about this performance combo
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