RennenFlamme

Yeah, that. With roughly the same HP, wouldnt the 951 be winning? I always see the C5 as a heavy car..

SoloRacer

I read it more as a smart *** comment about my other car. Do you believe that you would need only 4 psi on a Vitesse Stage III to beat a C5? Of course not. So why post BS like that when I clearly stated that my car dyno'd 300 rwhp at 15 psi. Newbies reading his commentary might think "Gee, I can just slap a Stage III on at 15 psi and I too will pull on a Lamborghini." The 968 I bought has a lot more done to it than just slapping on a turbo as does Special Tools car and as does Defastests car. To his credit John does not B.S. about the performance expectations of his turbos. He is direct and honest. Too bad there are others here who like to inflate the perceptions which in my opinion opens up John to the risk of having some dissatisfied customers. How would you feel if you bought a Stage III after everyone told you that at 15 psi you will be blowing the doors off C5's and when you finally meet one you get a draw? Would John telling you that the turbo will make 300 - 330 RWHP be comforting then? Or might you think you got snookered some how? All I ask is don't hype the **** out of something. It doesn't do any of us any good.

SoloRacer

Uhhh....wrong. Do the research. A C5 is almost exactly the same weight as a 951. It probably even has a wider powerband than most 951's. Gearing is probably going to play a bigger role in how the two compared. John emphasizes the power under the curve which is probably why my car matched up well with the C5 I ran with. Was he stock still? I don't know. Maybe not. But I'm not about to "assume" that he was modified up the ding dong as that would be dishonest. If both cars have similar weight, similar powerbands and similar gearing why should a Stage III easily pull on a C5? And remember....John himself says to expect 300 to 330 rwhp at 15 psi which is very respectable - especially with the broad powerband that his system gives you. Don't buy into hype - otherwise you could find yourself behind the wheel of Lambo Diablo some day looking at the shrinking taillights of a 951 or Turbo 968 and be wondering what could be wrong with your car because there is no way that anything is faster.

ilikemy944

I guess what I meant was, I was running 18psi on my 26/6...
It was an auto C5 - but I pulled on it like it was sitting still... I'm just pondering the thought that 350whp should do a lot more than that to a c5?

Edit - btw, nothing derogatory meant
I love your new car!

SoloRacer

350 RWHP will more than pull a C5.....300 RWHP does not. John doesn't say his Stage III will pull 350 RWHP at 15 PSI. He says it will pull between 300 and 330 RWHP. Mine pulled around 307 which I believe is in that range. My old k27/8 pulled very similar numbers at 15 psi but not as broad a powerband. It also was about at it's limit at 15 psi whereas the Stage III is only beginning at 15 psi. I look forward to pushing the Stage III further but know I have some other things to do to take advantage of what it gives you. Thank you for the compliment and I apologize for going on a rant.

ilikemy944

mmm... booost

Btw - I guess it did sound smartass, sorry about that :P
I'm just jealous lol - I sold my 951 2 weeks ago

fast951

I just read the last page, since the Stage III is being discussed, perhaps I should elaborate some.
At 15psi, on a 951 (without head work, cam etc..) at 1 bar you will be between 310-330rwhp give or take 10HP. This is on pump gas, on pump gas maps. Switch to race gas, and the chances to be in the mid-range of the power band is higher. On pump gas AND pump gas maps, few people run 17-18psi without a problem (I don't recommend it, I like to play it safe).
At 15psi, the Stage III is waking up. Add some race gas or water injection, turn up the boost and you will see the C5 Z06, C6, 993TT and 996TT in the rear view mirror, been there done that... Each 1 psi boost should yield approx 12-15rwhp. The turbo is capable of 500+rwhp, but you will not get there on the stock head.
I always post dyno charts as given to me by customers, this will take away any "BS fudge factor".

Back to topic. The Yellow 968 is one of my favorite.

SoloRacer

Thanks John. That is exactly what needed to be said. Pump gas and stock heads is what 99% of us run. I just purchased a new head for my 951 and am looking at cams - you still are making cams right? I didn't see them in the end of summer sale *Hint...hint...lol*

Here is the interesting picture I promised. Once I realized that my 951 was almost identical to the one in the Excellence magazine I had to set up this photo. Those who have seen the article will know why.

Zero10

Man, looking at that picture.... it makes me....... hate you. I'm sorry but we can't be friends any more.



J/K.

Nice car though. If my 951 was half as nice as either of yours then I would be one happy camper.

333pg333

Slightly off topic but when you say those figures posted for the V3 turbo on pump gas just what do you consider pump gas to be. In other words I've seen where you guys have gas in the high 87 oct up to low to mid 90's. I think your rating system is different to ours in Australia and the U.K. so I'm not sure how to compare or convert. I have been using 100 oct with 5% ethanol blended. I think this is equivalent to about your 96? Anyway there still seems to be a bit of a difference in the range of octane. Is this where you can get between 300-330hp due to different fuel?

MPD47

Your 98 = USA 93 (IIRC the abriviations are RON and PON?) Someone else can probably elaborate, but I believe that is correct.

fast951

Since the sybject of fuel vs. boost came up, I will start a new thread. Sorry SoloRacer for all the hijacking.

toddk911

And those typ of guys are the ones I would specifically want to run and embarrass. Then, stop and talk to them afterwards and ask them quesitons about their car that they have no answers too

toddk911

Ain't that the truth!!!!

testarossa_td

Those are two fine auto's