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! |
Randal |
Feb 5 2012, 09:24 PM
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#2
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Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
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! Nice build. That is a very clean car. Call up Bontempi and ask him about the best settings for a 1.7 race motor. FYI most tuners would want the motor on the dyno to figure out what works, but the folks I know are out here, i.e., a long ways from Austin. Get your car on a chassis dyno with a good air cooled tuner and you'll find the right power combination. Anything less, unfortunately, won't get you what you want. |
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