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Join Date: Jan 2008
Posts: 18
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Provide HP numbers for a 3.0L biuld
Here are some toys and tricks that I thought would deliver the best HP for a 3.0L rebuild can any give me HP numbers for a build like this:
Mahle Pistons 98mm PMO 46mm CAMshaft S SSI EXHAUST Quasi diff 43 teeth fine spine Twin plug distributor This would cost 18K just for the parts. The Mahle pistons I would have to order from God. |
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I don't think that an "early S" cam shaft is really going to give you the lift that the engine could use -- especially if it's an early SC with the large ports. I think that you'd do better with GE60's.
I'm guessing about 241 HP at 6300 RPM and 199 lb-ft of torque at 5100 RPM.
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John '69 911E "It's a poor craftsman who blames their tools" -- Unknown "Any suspension -- no matter how poorly designed -- can be made to work reasonably well if you just stop it from moving." -- Colin Chapman |
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Join Date: Mar 2006
Posts: 820
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HP numbers
I think that engine should do at least 270 hp at the flywheel. That number may be a bit low depending on exhaust and comp. ratio. The SSI and muffler combination could result in less power. We use 1 5/8 Georges headers.
I have dynoed similar engines with stock cams and EFI that do 260-265 with no problem using headers and race muffler. Last edited by rsscotty; 03-01-2008 at 05:01 PM.. |
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Loose nut bhind the wheel
Join Date: Dec 2005
Location: Durham, NC
Posts: 262
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Quote:
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Ed 1970 911S Targa 2.7RS MFI dual plug 10.5:1 1974 260Z SCCA ITS 1998 M3 |
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Oops. I forgot to take into account the 98 mm pistons. My corrected estimate agrees with Rscotty: 270 HP at 6300 and 220 lb-ft at 5100 RPM.
__________________
John '69 911E "It's a poor craftsman who blames their tools" -- Unknown "Any suspension -- no matter how poorly designed -- can be made to work reasonably well if you just stop it from moving." -- Colin Chapman |
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