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    996TT modifications vs. 997TT

    I was at a Porsche Speed Shop today in Costa Mesa, CA. The owner of the shop told me that he was told by the porsche factory that the 996TT engine components could handle up to 800 h.p. without a problem but the 997TT engine if modified once you exceed 600 h.p. the engine component can be seriously compromised. True or not, I have no idea but I was very disppointed. The owner also showed me an aluminum intake plunum that replaces the stock one and induces more air and adds up to 40 h.p. for around $1100.

    The owner had a`beautiful collection of cars, From Gullwing to Porsche 959, Ferrari 430, 575M, 360 and Dino

    They are also about to introduce a new ECU tuning by APR which adds 90 h.p. to the 997tt.

    Re: 996TT modifications vs. 997TT

    Was this RSS?

    Re: 996TT modifications vs. 997TT

    That's BS, The bottom end of the engine is exactly the same. In fact your block has a 996 part number. He may have been referring to the vtg turbos which are fairly un-moddable.

    Re: 996TT modifications vs. 997TT

    This is Stuttgart Performance in Costa Mesa. Very reliable speed shop. The gentlemen who said to me could careless one way or another. If Porsche is going to stop using the current engine in the 997TT next year and just turbo charge the 997S engine for a substantial savings (for porsche while the customers pay the same price) then I guess I would find it believeable that Porsche is beginning to use cheaper parts in the car for GREED. Gents, I am only speculating based on what I heard today. I own a 997TT too and this news if true does not please me

    Re: 996TT modifications vs. 997TT

    Quote:
    edz61 said:
    I was at a Porsche Speed Shop today in Costa Mesa, CA. The owner of the shop told me that he was told by the porsche factory that the 996TT engine components could handle up to 800 h.p. without a problem but the 997TT engine if modified once you exceed 600 h.p. the engine component can be seriously compromised. True or not, I have no idea but I was very disppointed. The owner also showed me an aluminum intake plunum that replaces the stock one and induces more air and adds up to 40 h.p. for around $1100.

    The owner had a`beautiful collection of cars, From Gullwing to Porsche 959, Ferrari 430, 575M, 360 and Dino

    They are also about to introduce a new ECU tuning by APR which adds 90 h.p. to the 997tt.



    According to what you have heard is there any other modifications conemplated to arrive at the 90bhp...or is it simply limited to ECU. Everything that RC has shared with us suggests beyond 540ish hp the engine and or turbos require modification to maintain the longevity and reliability of the engine.

    Re: 996TT modifications vs. 997TT

    Quote:
    edz61 said:
    I was at a Porsche Speed Shop today in Costa Mesa, CA. The owner of the shop told me that he was told by the porsche factory that the 996TT engine components could handle up to 800 h.p. without a problem but the 997TT engine if modified once you exceed 600 h.p. the engine component can be seriously compromised. True or not, I have no idea but I was very disppointed. The owner also showed me an aluminum intake plunum that replaces the stock one and induces more air and adds up to 40 h.p. for around $1100.

    The owner had a`beautiful collection of cars, From Gullwing to Porsche 959, Ferrari 430, 575M, 360 and Dino

    They are also about to introduce a new ECU tuning by APR which adds 90 h.p. to the 997tt.




    Both statements are not true, the 996TT engine components will not tolerate 800hp, the limit is 700hp at which point you're required to change the internals. The 997TT has the same block.
    I put over 20k miles on my car when it was making close to 580 hp with race fuel, including a few track events and one very high speed event and nothing happened.
    The car's VTGs were modified a couple of weeks ago and now it is supposed to be making upward of 560hp at the wheels (650-700 crank) and it is running like a charm.
    I'll let you know if the engine blows but I am pretty sure it is going to be just fine .

    Re: 996TT modifications vs. 997TT

    Thanks AAHTT may I ask where I got the work done and what mod's have you done on the car? What kind of exhaust system do you have? LoranTw when I was at this speed shop I was told ARP or ARP (don't quite remember) a software company from the MidWest in the U.S. has come up with the latest software that produces 90 H.P. The speed shop is installing the software on their 1st car this week.

    They also showed me this aluminum air intake plenum that replaces the factory stock which gets you 40 h.p.. AAHTT, have you heard of such a thing. Two Porsche dealers that I know send their cars to this speed shop for this specific mod.

    Re: 996TT modifications vs. 997TT

    Quote:
    edz61 said:
    Thanks AAHTT may I ask where I got the work done and what mod's have you done on the car? What kind of exhaust system do you have? LoranTw when I was at this speed shop I was told ARP or ARP (don't quite remember) a software company from the MidWest in the U.S. has come up with the latest software that produces 90 H.P. The speed shop is installing the software on their 1st car this week.

    They also showed me this aluminum air intake plenum that replaces the factory stock which gets you 40 h.p.. AAHTT, have you heard of such a thing. Two Porsche dealers that I know send their cars to this speed shop for this specific mod.



    My mods are: Protomotive tune and VTG upgrade, Cargraphic exhaust and BMC sport filter.
    With the ecu and exhaust only, the car dynoed 565 ft/lb before the clutch slipped on the dyno at 3000rpm.
    According to the tuner and other customers who dynoed their cars, the addition of the VTG turbo upgrade (machined housing with a larger compressor wheel) along with a retune have netted over 560whp and about 600whp if you add headers, intake and intercoolers which I don't want to do.

    The plenum that you are talking about is currently being tested by the tuner (protomotive) on their inhouse dyno to confirm the claims of the manufacturer/seller (RSS). I'll let you know as soon as I hear from the tuner because I am interested as well with such a minor mod if the gains are real, we'll see.

    Re: 996TT modifications vs. 997TT

    Thanks AAHTT, I am thinking about getting the cargraphic exhaust and the manifold done for the time being. I only have 700 miles on my car. BTW APR who has filed a law suit against Revo (http://www.goapr.com/Audi/revo/) claims 90 H.P. add with their software. Is their a promotive dealer in Orange County and what is the cost?? BTW Stuutgart Perf. claims they have dyno tested the plenum and indeed it adds 40 H.P. extra. I saw the installation looks very nice and clean and at $1K it's a bargain

    Re: 996TT modifications vs. 997TT

    Quote:
    edz61 said:
    Thanks AAHTT, I am thinking about getting the cargraphic exhaust and the manifold done for the time being. I only have 700 miles on my car. BTW APR who has filed a law suit against Revo (http://www.goapr.com/Audi/revo/) claims 90 H.P. add with their software. Is their a promotive dealer in Orange County and what is the cost??



    I wish they were closer, I sent my ecu and turbos to Protomotive who did the work in their shop in Harrison, AR.
    The tuner Todd Knighton has a huge following among some of the hardcore modded 996TT owners, just check 6speedonline and do some reading, that's what I did back in 2006 after I got my car. He is also a very nice guy and always responds to questions and e-mails. (No affiliation whatsoever).
    As far as cost, it can vary. I have spent about 10k$ so far on the car half of which was just the exhaust.

    Re: 996TT modifications vs. 997TT

    For $6K they will do the plenum and the cargraphic exhaust for me and they claim about 550 H.P. The exhaust is expensive. I might do Milltek now on sale for $3500K.

    Re: 996TT modifications vs. 997TT

    Quote:
    edz61 said:
    For $6K they will do the plenum and the cargraphic exhaust for me and they claim about 550 H.P. The exhaust is expensive. I might do Milltek now on sale for $3500K.



    There is no way a plenum and exhaust will get you anywhere near 550 without an ecu tune. The plenum numbers are from a dyno of a tuned car, not from a stock car. If you're lucky you'll get 30 hp from exhaust/plenum without a tune.
    The tune is the most cost effective performance mod followed by the exhaust. The plenum is still not confirmed.

    Re: 996TT modifications vs. 997TT

    I'm also skeptical about the plenum giving that much power increase but the tuner I've been talking to (RSS) has been really insistent that it's possible. They've shown me dynos to prove it too. I'm also concerned about the power increases wrecking havoc on the stock clutch. From what I've seen, it's not strong enough to withstand that much power.

    How do you like the protomotive ECU tweaks thus so far? I'm a bit leery about them mainly because they need you to send the ECU to them for tweaking. I'd much rather have it flashed locally like GIAC has been doing. I'm also concerned about warranty issues too.

    Re: 996TT modifications vs. 997TT

    I'm sceptical as well regarding the plenum...however Porsch claims the hp gain in the GT2 is mostly due to the new intake concept which cools the air by allowing an expansion before ingestion.

    Mike

    Re: 996TT modifications vs. 997TT

    Quote:
    atomic80 said:
    I'm also skeptical about the plenum giving that much power increase but the tuner I've been talking to (RSS) has been really insistent that it's possible. They've shown me dynos to prove it too. I'm also concerned about the power increases wrecking havoc on the stock clutch. From what I've seen, it's not strong enough to withstand that much power.

    How do you like the protomotive ECU tweaks thus so far? I'm a bit leery about them mainly because they need you to send the ECU to them for tweaking. I'd much rather have it flashed locally like GIAC has been doing. I'm also concerned about warranty issues too.



    I have seen the dynos and Greg from RSS actually installed my cargraphic. Like you said he was pretty adamant about the power gains and he told me that Protomotive had requested one for testing. This was confirmed by Todd and I am awaiting his response, last week he had a 997TT on his dyno and he was supposed to test the plenum on it.
    As far as the mods go, quite frankly if you are really concerned about the warranty I wouldn't go beyond the exhaust. The proto tune is also a flash but it is done personally by Todd and not by e-mail download at a separate location.
    Regarding the warranty I am relying on the fact that the engine block in the TT is able to handle this kind of power as seen on the 996TTs so I am not too worried, also my car is going to be 2 years old in a few months and halfway through the warranty anyway.
    BTW, I dont believe you can hide the ecu tune from Porsche, if they look for it they will find it even with a reflash and a second ecu. The only advantage of GIAC is that if your tune is accidentally reset to stock you could reflash it yourself for free, Protomotive charges 365$ for reflashes.
    The turbo upgrade also required a different tune adjustment but the car's power is now down right dangerous even with awd. Can't wait to take it on the track....

    Re: 996TT modifications vs. 997TT

    AAHT I just talked to the Porsche dealer, as for the ECU tuning you are right, once they detect it they will void the warranty period. As for the exhuast if they can link the problem to the exhaust, then that problem will not be covered under warranty while the rest of the car stays under warranty. As for the air intake plenum same thing applies. So you know greg? He is a good guy

    Re: 996TT modifications vs. 997TT

    AAHT, have you thought about getting the plenum? I'm planning to get that myself and would appreciate any thoughts you may have about that.

    Re: 996TT modifications vs. 997TT

    Quote:
    atomic80 said:
    AAHT, have you thought about getting the plenum? I'm planning to get that myself and would appreciate any thoughts you may have about that.



    Yes, I almost ordered one when we were putting the car back together but I later decided to wait for TK's opinion as a tuner after he dynoes one in his shop just to confirm.
    It is a lot of money to waste if the gains are only at a specific rpm and not distributed evenly. I'll let you know as soon as I hear from him.

     
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