Blower fuel mixture?

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Blower fuel mixture?

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Corvette Forums >> RACING / RECREATIONAL >> Street/Strip >> Blower fuel mixture?

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Blower fuel mixture? - 11/19/2007 7:53:45 PM

10secvette

Posts: 1
Joined: 11/19/2007
Status: offline

Hi, i got a Weiand 177 blower on my 388. What air/fuel ratio do you guys think makes the most power? Currently I run a 12.4 to 1 air/fuel ratio. I went richer and lost power on the chassis dyno. If I would go much richer like maybe 10.5 or 11.0 to 1 would power come back up since all the additional fuel is cooling the intake charge. I'm on 11 psi of boost with 110 octane. Any ideas.

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1980 corvette 388 with Weiand 177 blower
1.42's 60 foot and 10.80's at 125 mph in the 1/4 mile

Post #: 1

RE: Blower fuel mixture? - 1/6/2008 8:23:46 PM

allend43

Posts: 1
Joined: 12/23/2007
Status: offline

Sometimes you just gotta try it, imo. May lose power on the dyno, but in the heat of summer, the extra fuel may indeed cool the intake charge, as you suggested, making the car faster at the track. How fast you spinning that blower? I actually run a 177 on a 406 in a 77' corvette myself. I got it running just before the tracks around here shut down for winter, so I have'nt had a chance to dial it in yet. Maybe we should compare notes in the future.

(in reply to 10secvette)

Post #: 2