997 Turbo / GT2 2006–2012 Turbo discussion on the 997 model Porsche 911 Twin Turbo.
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Upgrading stock to 700+ HP

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Old Dec 3, 2015 | 08:57 PM
  #61  
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Originally Posted by rix
Can you just post the following then?

"Your cars make 800hp on the dyno, but I do not consider it to be real horsepower because if you drive it for 200 miles on the autobahn at 210+mph it will de-rate itself to 500-600hp".

Can we be done? Everyone knows what you're saying. We disagree. You keep posting the same thing as though we just don't have all the facts. Let us peasants over the pond in the colonies learn on our own.
Well said!! Stupid Yank haha....We're not worthy......

DC
 
Old Dec 4, 2015 | 08:30 AM
  #62  
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I take the point about that you don't go over 130mph fair enough. It doesn't really matter to me because I am over this side of the pond and I am not selling to you.

But hey guys stop banding around bhp numbers that are bs. You want to see proof of what actual happens when you crank these up then look at the two pdfs. Same car, 9e28 (actually not the customer on here but same set up), within one hour runs.

The normal with vpower99 (your usa 94-95 fuel) - no methanol, just stock fuel taken up to 260 odd kph - boost kept low at around 1.2bar. Notice no retardation at all ( had to do this with durametric which will only output single value across all cylinders but same test done with PIWIS live shows same data.

So now, some of you think you are safe at 1.5 bar. Really?. So let's put in some straight MS109 just to be sure for some protection, adjust the tune appropriately. Wow, there is a surprise, the car is so much more quicker to 130mph (6.1 seconds against 7.6 seconds) but guess what - even at such low speeds, why is it retarding already...anyone want to guess - maybe ask your tuner.

I'm sure the later ms109 tune has 750hp or whatever. The original is around 640hp tops and runs 26 seconds to 300kph.

I know which one I would want to drive to 130mph and it ain't the 750hp version!.

edit - just to be clear we are talking about gt2rs vtgs that have then been made hybrids with larger wheels like 65/66 and 68mm.
 
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Old Dec 4, 2015 | 08:42 AM
  #63  
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I have plenty of logs on both pump gas (6.7) and E85 (5.9) at 1.5 bar with ZERO timing retard to 130. Your theory is invalid.
 
Old Dec 4, 2015 | 08:50 AM
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Originally Posted by A418t81
I have plenty of logs on both pump gas (6.7) and E85 (5.9) at 1.5 bar with ZERO timing retard to 130. Your theory is invalid.
To 130mph not an issue buddy. Try running your car to 180mph + and see the data log. It may be an interesting eye opener. In this situation the 640 bhp will leave the 750bhp VTG tuned car for dead. I can't believe you guys are so conservative over there. Lunatics over here are regularly out for high speed runs at events and Autobahn etc
 
Old Dec 4, 2015 | 08:52 AM
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Thumbs up

Any way its all good fun and I didn't mean to upset the natives
 
Old Dec 4, 2015 | 09:01 AM
  #66  
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Originally Posted by A418t81
I have plenty of logs on both pump gas (6.7) and E85 (5.9) at 1.5 bar with ZERO timing retard to 130. Your theory is invalid.
Of course you would - your on stock VTGs - I was referring to GT2RS Hybrids with either 66mm or 68mm wheels. What happens when you turn up the boost.
 
Old Dec 4, 2015 | 09:02 AM
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You aren't. You are just using odd logic. You just stated that at "such low speeds" meaning less than 130, you guys see timing retard apparently even on race fuel. My car runs spectacularly at those speeds with no reduction in torque and intake air temps well controlled.

As already stated, we don't care that you can go 180 or 200 mph. Save for a few air strip racers here, most don't top 140. Your autobahn speeds are irrelevant to our interests. I don't see why this is a difficult concept to grasp.
 
Old Dec 4, 2015 | 09:04 AM
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Originally Posted by A418t81
You aren't. You are just using odd logic. You just stated that at "such low speeds" meaning less than 130, you guys see timing retard apparently even on race fuel. My car runs spectacularly at those speeds with no reduction in torque and intake air temps well controlled.

As already stated, we don't care that you can go 180 or 200 mph. Save for a few air strip racers here, most don't top 140. Your autobahn speeds are irrelevant to our interests. I don't see why this is a difficult concept to grasp.
You probably missed my other post - was not referring to stock VTGs, hence why you don't have this issue. But as you are aware you cannot make 700hp on stock VTGs.
 
Old Dec 4, 2015 | 10:52 AM
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9e guys, In fairness your argument is like some VTG hybrid guys saying that you are slower to 130 or 150. It's two different things and good tuners know what map to provide for what use. Tom is correct, there are plenty of cars using them that work swell. Glad your set-ups work for your use! Enjoy! Here your cars would be slower and have room to map up in many cases. Perhaps not all but that has yet to be proven apples to apples. You are pushing against some reputable companies here. No matter what it's also just not that simple. Exhaust, fuel, IC's and many other variables make a difference in backpressure. Just my .02.
 
Old Dec 4, 2015 | 02:45 PM
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Thumbs up

Sambo with respect 9e still hold UK VMAX record of 230mph within 1.3 miles and have had the same car at 253mph vbox verified on autobahn. The owner of the 9e XX hopes to run 240mph next year at same VMAX event. 9e know what they're doing matey especially on turbos/GT3. Customers send their turbos to them for routine servicing from Scotland - thats just crazy as its over 400 miles away!

They have a loyal customer base of over 1000 customers and something like 800 of them are turbo/GT3 owners.

Without wanting to sound like a fan boy as I use my local official Porsche dealer for servicing 9e really are the go to guys here in UK for turbos/GT3s and all of this achieved within 5 years of set up.

I take your point well about maybe your US cars perhaps being quicker over 1/4 and 1/2 mile.

For reference and as a rough guide 9e 28 runs approx 11 secs to 1/4 mile, 14 secs to 150mph, 17 secs half mile, and 26.5 secs to 186mph and 202 mph (205mph if decat) within 1.3 miles.

I've personally not come across a quicker VTG manual stock engined 997.1 turbo here in the UK. If you have quicker manual VTG 997.1 turbos in the US I'd defo love to hear about them and see some VBOX or vids of them. I always watch Longboarders vids avidly!

For those that are interested here's what the 640 bhp 9e 28 does to a 991 turbo with 650bhp - not 100% but I think thats the 991 turbo max limit for bhp as they have smaller VTGS but sure someone on here will let me know 700-775bhp possible on a 991 turbo!?


and SLR 722


700bhp on stock vtgs just not gonna happen.
 
Old Dec 4, 2015 | 03:10 PM
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That is awesome and much respect. This debate just won't go anywhere though because we are comparing apples to oranges. I don't think you're going to find someone here to run their car at that speed. Even our events or half-mile. Once in a while we have one-mile events. Perhaps then we will see what happens there. I can guarantee the tune will be different and that will be tested for that type of demand.

I can tell you that even if we compare the same exact car… No matter what the turbocharger is a different tuna can do different things with it and get different results in different arenas and benchmarks.

Cheers
 
Old Dec 4, 2015 | 05:00 PM
  #72  
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Originally Posted by 9e 28
Sambo with respect 9e still hold UK VMAX record of 230mph within 1.3 miles and have had the same car at 253mph vbox verified on autobahn.
I take your point well about maybe your US cars perhaps being quicker over 1/4 and 1/2 mile.

For reference and as a rough guide 9e 28 runs approx 11 secs to 1/4 mile, 14 secs to 150mph, 17 secs half mile, and 26.5 secs to 186mph and 202 mph (205mph if decat) within 1.3 miles.

700bhp on stock vtgs just not gonna happen.
so what i see you saying is that on your side of the pond it takes you .3 miles more to go 5mph slower than the record 996 turbo porsche that runs 235 in the mile. and your 1/4 mile et is the approx same as a mildly modded us car.

silly me i thought you were talking about fast cars.
 
Old Dec 5, 2015 | 01:05 AM
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Originally Posted by 32krazy!
so what i see you saying is that on your side of the pond it takes you .3 miles more to go 5mph slower than the record 996 turbo porsche that runs 235 in the mile. and your 1/4 mile et is the approx same as a mildly modded us car.

silly me i thought you were talking about fast cars.
its all down to the surface Krazy - As you can see from the vids the surface we use at Bruntingthorpe really is awful and slightly uphill. Record holding 9e XX at VMAX also a 996 turbo by the way. We aren't ever going to set any world records or quick times at Brunters - just no chance. Its often wet too.

I take your point though I think Evoms built car i.e. Anthony's amazing 997 turbo redefines fast - he hit 219mph at half mile which is astonishing
 
Old Dec 5, 2015 | 07:03 AM
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Originally Posted by 9e 28
its all down to the surface Krazy - As you can see from the vids the surface we use at Bruntingthorpe really is awful and slightly uphill. Record holding 9e XX at VMAX also a 996 turbo by the way. We aren't ever going to set any world records or quick times at Brunters - just no chance. Its often wet too. I take your point though I think Evoms built car i.e. Anthony's amazing 997 turbo redefines fast - he hit 219mph at half mile which is astonishing
So your saying the reason your not faster is because the surface sucks and it rains were you live? Sounds like keyboard racer excuses. In the states we do it the easy way.

"Run what ya brung!"
 
Old Dec 5, 2015 | 07:44 AM
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Let me know when you oppressive colonials are hitting the real autobahn, I would love to tag along and see where you are 200+ for an hour.
 


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