Performance specs for modified 996 turbos?
Discussion
Does anyone have any times/measures for what a 996 turbo will achieve with 580-600hp? Figures for various other different levels of tune would be interesting too.
I'm having a few bits upgraded as I've been having a bit of competative fun with the owner of an R33 Skyline who's car can match mine inch for inch at the moment. The trouble is, from the driving seat it's likely to go from 'sodding fast' to 'sodding fast' it would be nice to know what actual figures it will be achieving. To give me something to put it in context with other numbers I read)?
I don't really want to go doing runs at Santapod and ruining the clutch to find out. A burst through a few gears out of a roundabout is far gentler and all I'll likely be doing on the odd occasion I meet my friend/other tasty machinery on the road.
I did a quick search on youtube and all I saw was 996's lossing
I find that probably not representative of real life. The only thing that's ever pulled away from me was a 720hp 997 GT2 at Silverstone. Compared to everything else, even 'technically' faster cars, I've always had the edge when push comes to shove.
I'm sure other 996 owners must have had similar experiences? I'd love to hear about them
I'm having a few bits upgraded as I've been having a bit of competative fun with the owner of an R33 Skyline who's car can match mine inch for inch at the moment. The trouble is, from the driving seat it's likely to go from 'sodding fast' to 'sodding fast' it would be nice to know what actual figures it will be achieving. To give me something to put it in context with other numbers I read)?
I don't really want to go doing runs at Santapod and ruining the clutch to find out. A burst through a few gears out of a roundabout is far gentler and all I'll likely be doing on the odd occasion I meet my friend/other tasty machinery on the road.
I did a quick search on youtube and all I saw was 996's lossing
I find that probably not representative of real life. The only thing that's ever pulled away from me was a 720hp 997 GT2 at Silverstone. Compared to everything else, even 'technically' faster cars, I've always had the edge when push comes to shove. I'm sure other 996 owners must have had similar experiences? I'd love to hear about them
Mr. Fearns is the tuner. The turbos are based on K24's, they are non standard hybrids but I don't know the exact spec I'm afraid. I'm told they'll be good for a safe 580-600hp with the modified inlet pipes and 200 cell cats.
I'm confident on those figures. My car has between 2-4% leakage across the cylinders and was VERY strong with a map. Apparantly one of the best Andy had ever seen at 50k miles.
I'm confident on those figures. My car has between 2-4% leakage across the cylinders and was VERY strong with a map. Apparantly one of the best Andy had ever seen at 50k miles.
Edited by Niffty951 on Monday 26th September 12:49
TB993tt said:
Niffty951 said:
The only thing that's ever pulled away from me was a 720hp 997 GT2 at Silverstone.
Do you have any more details on this car, like what are and who did the mods ? TIAHangar Straight 160
New Pit Straight 125
Wellington 145-150
Start Finish 145
Niffty951 said:
Driver posts on pcgb as 'Alex 997 GT2' he posted the following speeds in response to me asking. I could only just touch 145mph on Hanger straight.
Hangar Straight 160
New Pit Straight 125
Wellington 145-150
Start Finish 145
You did well to hit 145 on hangar straight. Is this before you've modded the car at all? Hangar Straight 160
New Pit Straight 125
Wellington 145-150
Start Finish 145
I was seeing just shy of 150 two weeks ago and my X50 is upgraded to c550bhp, as are brakes, suspension etc..
Niffty951 said:
You guys are useless 
no one has even tried to answer my question!
But you haven't supplied what your performance is, only an indication of "bhp" which does not mean anything. If you have a vbox then you will know. Run a 60-130mph time and I can tell you where you stand. no one has even tried to answer my question!996ttalot said:
Niffty951 said:
You guys are useless no one has even tried to answer my question!
But you haven't supplied what your performance is, only an indication of "bhp" which does not mean anything. If you have a vbox then you will know. Run a 60-130mph time and I can tell you where you stand. no one has even tried to answer my question!60-130mph - 7.7s
580ish!
I was wondering what the typical performance figures the cars produce for various levels of tune? It wasn't meant to be that specific to my exact car. I was just looking for ball park figures, surely two 996's running approximately 500hp or 550hp or 600hp must have similar torque curves/performance figures?
I understand there are likely to be many cars quoting higher than actual figures but I saw a race somewhere between two quoted 600hp 996's built by different tuners in Germany and they were identical. Sat side by side as if neither car was moving. Gave the impression that tuned performance from one 996 to the next is pretty reliable.
I understand there are likely to be many cars quoting higher than actual figures but I saw a race somewhere between two quoted 600hp 996's built by different tuners in Germany and they were identical. Sat side by side as if neither car was moving. Gave the impression that tuned performance from one 996 to the next is pretty reliable.
Edited by Niffty951 on Monday 26th September 12:13
Thank you. EvoSlayer said:
Niffty951 said:
It wasn't meant to be that specific to my exact car.
It's actually my 'exact' car 
Again it is difficult. What incline/decline, how many passengers, how much fuel and so on.
Generally it is like this for 996tt.
"hp" 60-130
420 11.95
520 8.9
600 7.9
700 7.1
750 6.6
800 6.1
900 5.5
1000+ high 4s.
This assumes standard weight, half a tank, driver and passenger and max 1% decline. It also depends on a lot of other factors such as the hybrids used, whether PSM is on or off and so on, what AT/IATs etc etc.
And this is only an indication - 0-300kph is better and more accurate. 1/4 miles is pretty good as well although that assumes you are good at launching the car.
EvoSlayer said:
It's actually my 'exact' car
...Be interested to see how yours compares after the Fearns treatment, keep us posted.
Hi Andy, hope you're well, and impressive figures fella ...Be interested to see how yours compares after the Fearns treatment, keep us posted.
How do these timing things work then? Is it choose a low gear and change up until desired speed achieved or is there a standard format, ie. always done in 3rd or 4th gear and is therefore a template for everyone to quote a time by?
I'll beg borrow or steal one of these gismo's and do a run when I get the car back in a couple of weeks. Do you need to input weight to get the thing to work? What weight should I put into the gizmo for my 420 car with heated sports option seats and all the fatty trimmings? I wouldn't know where to start to find a weigh bridge.
p.s. 7.7 60-130 is naughty fast I believe that's faster than the 458 Italia
p.s. 7.7 60-130 is naughty fast
I believe that's faster than the 458 Italia996ttalot said:
Hey Andy.
Again it is difficult. What incline/decline, how many passengers, how much fuel and so on.
Generally it is like this for 996tt.
"hp" 60-130
420 11.95
520 8.9
600 7.9
700 7.1
750 6.6
800 6.1
900 5.5
1000+ high 4s.
This assumes standard weight, half a tank, driver and passenger and max 1% decline. It also depends on a lot of other factors such as the hybrids used, whether PSM is on or off and so on, what AT/IATs etc etc.
And this is only an indication - 0-300kph is better and more accurate. 1/4 miles is pretty good as well although that assumes you are good at launching the car.
Agreed Ken, There are that many variables and as you know there will always be someone to argue the toss, claiming, 'the wind was blowing in the wrong direction' or 'the use of superfly lightweight carbon underpants is not allowed!' or some such bAgain it is difficult. What incline/decline, how many passengers, how much fuel and so on.
Generally it is like this for 996tt.
"hp" 60-130
420 11.95
520 8.9
600 7.9
700 7.1
750 6.6
800 6.1
900 5.5
1000+ high 4s.
This assumes standard weight, half a tank, driver and passenger and max 1% decline. It also depends on a lot of other factors such as the hybrids used, whether PSM is on or off and so on, what AT/IATs etc etc.
And this is only an indication - 0-300kph is better and more accurate. 1/4 miles is pretty good as well although that assumes you are good at launching the car.
ks. As you know my car is a standard weight manual and you are familiar with the specs, this particular run was done with approx 1/2 tank of fuel and driver only, PSM, A/C and CD all on, that said the 60-130 did include a rather amateurish and sloppy 3rd-4th shift, also any incline/decline was negligible as I managed identical times in both directions on the same stretch, so swings and roundabouts really.What I think it does show though, as th op asked, is an idea of the performance achievable at this kind of power level.
Just to add the 60-100 was a straight 3rd gear pull.
...surely I'm not the only one to have recorded any times?
Edited by EvoSlayer on Monday 26th September 13:44
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