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Registered
Join Date: Dec 1999
Location: Richmond, VA USA
Posts: 1,058
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rfuerst911SC,
The injector rating of 30 pph was made at a fuel pressure of 3 bar = 43.5 psi. If you are running 48-50, your injectors would be delivering as if they are 30 x sqrt(49/43.5), or 32 pph. That would richen the mixture since you told MS that you were using 30 pph injectors. Last edited by Brian K. Haggard; 03-25-2006 at 11:11 AM.. |
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03-25-2006, 07:26 AM
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Registered
Join Date: Mar 2003
Location: Edmonton
Posts: 697
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30 lb injectors will support over 300 HP...the only problem is that getting proper fuel delivery at low engine speeds can be problematic. The injectors aren't _that_ big but it'll probably take more tinkering to get it to idle correctly.
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Matt B '73 911E |
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03-25-2006, 10:59 AM
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Registered
Join Date: Dec 2002
Location: Dahlonega , Georgia
Posts: 14,689
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Well I'm extremely happy to report my car is actually driving on the road!! Today I did some tuning to the warm up enrichment and to the idle/off idle MAP. To be honest I'm quite nervous over this tuning but as I do it in baby steps it doesn't seem so bad. I've got a pretty good idle and off idle is not too bad with just a slight bobble, other than that she pulls like crazy when you bury your foot in it and the sound of those 6 throttle bodies is incredible !! I'm guessing like anything else with practice this become no big deal. The next step will be " data logging " for additional info on engine performance. I have a autocross the end of April and I can't wait to show off my "winter project". I can't believe this is where I'm at vs. where I was a month ago. All the help from this board is GREATLY appreciated !!! I hope it's not an omen but today on a foot to the floor run a bird crapped all over my freshly washed baby, I'm thinking I scared the crap out of it, that's my story and I'm sticking to it.
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2002 Boxster S . Arctic silver + black top/int. Jake Raby 3.6 SS engine " the beast ". GT3 front bumper, GT3 side skirts and GT3 TEK rear diffuser. 1999 996 C4 coupe black/grey with FSI 3.8 engine . Rear diffuser , front spoiler lip with ducktail spoiler . |
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03-26-2006, 12:23 PM
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