Protomotive 997tt-3071r system (703rwhp/685 wtq) @ 1.25bars - Page 3 - 6SpeedOnline

Oct 6, 2008 | 06:35 AM

#31

S4corrado996TT

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Joined: Apr 2007

Posts: 594

From: Taiwan

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Quote:

Originally Posted by Triss

Should be about 780hp. Should be around 10% drivetrain loss since it is rwd..

Hey Triss! Thank you very much!

Oct 6, 2008 | 07:19 AM

#32

RCNJ

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From: FL

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Quote:

Originally Posted by Triss

Should be about 780hp. Should be around 10% drivetrain loss since it is rwd..

I've always heard its 15% rwd and 18% awd.

Oct 6, 2008 | 08:27 AM

#33

Triss

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From: Stockholm/Sweden

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Quote:

Originally Posted by RCNJ

I've always heard its 15% rwd and 18% awd.

Very different from car to car, but new Porsche drivelines are very effective. I believe around 8% for gt3 and 13-15% for turbo awd is pretty close. So a rwd turbo would be better than an awd turbo but not quite as good as the gt3 driveline which is remarkably good...

Oct 6, 2008 | 08:27 AM

#34

Divexxtreme

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Quote:

Originally Posted by Triss

Should be about 780hp. Should be around 10% drivetrain loss since it is rwd..

12.5% for RWD and 18.5% for AWD in these cars. Thus, that car is making right around 800 crank HP.

Oct 6, 2008 | 08:31 AM

#35

VBOXKING

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From: Brentwood, TN

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12.5% for a tiptronic car? Sounds low.

Aaron

Oct 6, 2008 | 08:33 AM

#36

Divexxtreme

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From: Virginia, USA

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Quote:

Originally Posted by acicchelli

12.5% for a tiptronic car? Sounds low.

Aaron

Oh, that's a Tip? That's what I get for skimming posts.

Ya, 12.5% and 18.5% are for manuals. Add another 5% loss to both for tips.

Oct 6, 2008 | 10:06 AM

#37

VBOXKING

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Joined: Apr 2006

Posts: 405

From: Brentwood, TN

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So with 17.5% loss, 703 rwhp equals 852hp at the crank.

Aaron

Oct 7, 2008 | 12:16 AM

#38

Turbo Fanatic

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From: In a Canyon - Really :)

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more like divide by .90 or .85 (or whatever you find the accurate number to be).

Quote:

Originally Posted by S4corrado996TT

Markski! Approximately, What is crank hp about it? Should I use 1.12 or 1.17 to multiply 702 to get crank hp? Thanks!

Oct 10, 2008 | 10:00 PM

#39

bone_doc s4

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Joined: Oct 2007

Posts: 186

From: SOCAL

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bone_doc s4 has a spectacular aura about

Quote:

Originally Posted by MARKSKI

1.25 bars on 103 octane and 1 bar on pump.

what kind of whp can we expect on Cali 91 and vp 109?

Oct 12, 2008 | 10:54 PM

#40

vduzin12

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Posts: 253

From: SF Bay Area

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awesome

Oct 13, 2008 | 07:20 AM

#41

WOODTSTER

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Joined: Jan 2006

Posts: 5,710

From: MPLS, MN USA

Rep Power: 466

Incredible power and performance!

KeithA, please keep us updated on your car and how it compares to Chris Green's.
(didnt he outrun your car, although you had major problems?).

If that dyno was done at Protomotives shop (same dyno as mine was done on), here
is my OPINION;
my dyno was 628 RWHP (75 less than this car),
my car is very, very, very close to all performance figures known for the RUF RT12 650,
so I believe I have very close to 650-660 CRANK hp.

628 divided by .95 = 661 crank hp (my car on Todd's dynapack dyno)

703 divided by .95 == 740 crank hp for this 997 Turbo (I have not factored anything
for the tiptronic and do not know how it relates).

I would think 740-770 crank hp would be REALISTIC.

IMHO

MK