And the "official" horsepower rating is... (merged threads)

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10-05-07, 03:48 PM

#91

Ramon

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Quote:

Originally Posted by IS350jet

I'm sorry, Ramon. What, again, is your source for the IS-F specs? I didn't realize that Lexus had published those, yet. I never said that the IS was going to be quicker than the C63 but I believe it will be much closer than you think.

Are you refferring to the HP specs which there are about three threads about already? And the comparson won't be much closer than I think, for the simple fact that I have not told you how far off I think the IS-F will be.

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10-05-07, 03:49 PM

#92

MR_F1

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Quote:

Originally Posted by XeroK00L

Here's my theory.

As most of you know, the first batch of the prototype IS-F's interior showed a redline of 7000rpm in the tachometer. The production IS-F, however, now has a reduced redline of 6800rpm for reliability reasons. This means that the horsepower on the original prototype was roughly 423ps x 7000rpm / 6800rpm, which, as you may have guessed, is 435ps!!!

only problem with that theory is that the silver car is one of the later prototypes.

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10-06-07, 07:08 AM

#93

IS350jet

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Quote:

Originally Posted by Ramon

Yes, and ALL of it is speculation at this point. I wouldn't call this or any other thread on this board a reliable source for ISF specs. Personally, I think 417 will be pretty close to reality, but again, it's only speculation at this point.

The M3 won't stand a chance, neither will the RS4 but that's not to say that the ISF will blow their doors off. Just like the C63 won't blow the doors off the ISF. All 3 will be very close.

Quote:

Originally Posted by Ramon

I highly doubt it will give the C63 a run for it's money. Not with a 40hp deficit and 70ft/lbs less torque. Assuming roughly equal weight, my money is on the car with the additional 40/70 and one fewer ratio.

This gives me a pretty good idea of how far off you think they will be. Let's just agree to disagree and wait for the official numbers and acceleration times by the mags, okay?