Randy Probst Drives APR's 997 Turbo
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Randy Probst Drives APR's 997 Turbo
http://vimeo.com/2288589
Check this video out. The car has software and exhaust. The thing makes 700lb/ft of torque with just the chip, exhaust and 100 octane.
Check this video out. The car has software and exhaust. The thing makes 700lb/ft of torque with just the chip, exhaust and 100 octane.
Last edited by GMP - Matthew; 03-04-2009 at 06:43 PM.
#5
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I think I would be quicker in a GT3 with Motons, and my motor would last more than 50 hours
What's the going rate for Randy to do a promo now days?
You guys were modding VWs back in the 80s off pressley road.... right?
What's the going rate for Randy to do a promo now days?
You guys were modding VWs back in the 80s off pressley road.... right?
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#8
I don't think so either. How about some PBOX acceleration numbers or 1/4 mile trap speeds.
for that kind of power you need to modify the VTGs among other things.
Looking forward to some numbers.
for that kind of power you need to modify the VTGs among other things.
Looking forward to some numbers.
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Stock clutch will slip at around 545lb/ft (740NM) the stock rods start bending at around 580lb/ft (790NM) and the gearboxes will start breaking at around 625lb/ft (850NM) - as has been pointed out bigger turbos are needed to go north of ~580lb/ft (790NM)......
If your dyno is telling you 700lb/ft (952NM) then it is seriously not made for measuring turbo torque - try the car on a Maha LPS3000 for a reality check !
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So far this car has 3800 miles on the car. APR bought it new and since this video, it has been equipped with tailored coilovers to APR specs from Koni and a Sachs clutch.
Here is a dyno on 93 octane with stock exhaust.
I will have the 100 octane dyno posted in a few.
Yes we are the same company on Pressley road
Here is a dyno on 93 octane with stock exhaust.
I will have the 100 octane dyno posted in a few.
Yes we are the same company on Pressley road
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You are so far out that it does not bode well for your reputation....
Stock clutch will slip at around 545lb/ft (740NM) the stock rods start bending at around 580lb/ft (790NM) and the gearboxes will start breaking at around 625lb/ft (850NM) - as has been pointed out bigger turbos are needed to go north of ~580lb/ft (790NM)......
If your dyno is telling you 700lb/ft (952NM) then it is seriously not made for measuring turbo torque - try the car on a Maha LPS3000 for a reality check !
Stock clutch will slip at around 545lb/ft (740NM) the stock rods start bending at around 580lb/ft (790NM) and the gearboxes will start breaking at around 625lb/ft (850NM) - as has been pointed out bigger turbos are needed to go north of ~580lb/ft (790NM)......
If your dyno is telling you 700lb/ft (952NM) then it is seriously not made for measuring turbo torque - try the car on a Maha LPS3000 for a reality check !
I think you might be referring to ground numbers. Is this accurate?
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When this video took place, Randy was giving rides in it for several hours straight. The 997TT uses Bosch Motronic 7 engine management which was first released in Audi in 1996. At their conference this past weekend I asked their engineers how they are getting more torque as I was thinking at first there was no way these numbers could be real. Their response was that because they have figured how to control the VTG's which allows them to recalibrate the turbine positions throughout the power band thus unleashing more power. APR thinks that no one else has figured out how to control the VTG's yet and are just tuning the car like the would with the 996TT.
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The chassis dyno is simply wrong, it is probably not loading the engine properly at peak torque - this seems to happen quite often with powerful turbo Porsches, the speed with which the boost ramps up the torque produces these spurious numbers. If the dyno could properly brake the torque and hold the engine under load at ~3200rpm you would see maximum 580 ftlbs but the shear acceleration which 580 ftlbs gives to the drums ***** up the software giving the silly readings at peak torque - you/APR are not the only ones quoting these sorts of numbers, the error is the dyno manufacturers problem.
On the Maha system they actually have a setting for flat 6 Porsche turbo engines which applies a different load to a non turbo flat 6 and even their torque numbers are only approximate IMO
I note from the APR web site that they have/are planning an engine dyno. If they work out how to use it properly (with the cooling facilities to brake the engine at peak torque) then this will reveal the real torque.
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If I'm not mistaken they (APR) is capable of holding the RPM's at any point.
Watch this video.
http://vimeo.com/3110390
I thought they showed it in this video when I watched it at their facility but I'm pretty sure they can do it because I remember them talking about it so they can make the car hold the power through out the RPM Range so achieve smoother acceleration.
Watch this video.
http://vimeo.com/3110390
I thought they showed it in this video when I watched it at their facility but I'm pretty sure they can do it because I remember them talking about it so they can make the car hold the power through out the RPM Range so achieve smoother acceleration.
Last edited by GMP - Matthew; 03-05-2009 at 02:42 PM.
#15
Matt,
You're a good guy, but can I give you a word of advice?
This isn't 6speed. Rennlist is a completely different animal.
If you are going to post here, you better be 100000000% sure of what you are talking about, and you better have the proof to back it up.
I can tell you right now, hold on, cause you have already awaken the sleeping bears...
You're a good guy, but can I give you a word of advice?
This isn't 6speed. Rennlist is a completely different animal.
If you are going to post here, you better be 100000000% sure of what you are talking about, and you better have the proof to back it up.
I can tell you right now, hold on, cause you have already awaken the sleeping bears...