New build pic, looking for jetting/timing recommendation |
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New build pic, looking for jetting/timing recommendation |
consolidated |
Feb 5 2012, 04:26 PM
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#1
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Newbie Group: Members Posts: 15 Joined: 14-November 11 From: Texas Member No.: 13,781 Region Association: None |
The 914 Spec series or "H2R Challenge" is starting next week but I feel the car may not be making optimum power. It has dual 40 IDF Webers with stock 155mm main jets, I'm in Austin, Texas 450' elevation.
Any carb and timing tuning advice would be very much appreciated. The motor is s stock 1.7L, rebuilt with new pistons, rings, bearings, crankshaft, seats etc. Compression is good. How much timing advance is optimal for these motors? Thanks! |
jmill |
Feb 14 2012, 07:26 PM
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#2
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Green Hornet Group: Members Posts: 2,449 Joined: 9-May 08 From: Racine, Wisconsin Member No.: 9,038 Region Association: Upper MidWest |
What ET are you using along with AC jet size. If your using the F11 with an AC jet over 2.00 it'll lean your mixture up at higher velocity. I've never been a fan of the F11 and prefer the F7.
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