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The Terminator
Terminator Talk
My Cobra finally saw a dyno earlier this month...
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<blockquote data-quote="DCguy" data-source="post: 16861437" data-attributes="member: 196849"><p>I think he's right on the money power wise....just curious if he was on a mustang dyno since those read a good bit lower.</p><p></p><p>With timing you want to keep bumping it one degree at a time until the increase in hp begins to diminish generally speaking......then once you find that number I typically back it off 2 degrees to keep things safe. For pump E85, 23-24 degrees is about the limit of the safe range........so 20-22 degrees is what i'd hover around if you want it a bit safer. Beyond that i'd put a flex fuel sensor kit on it to allow the car to make timing/fuel corrections based on ethanol content.</p><p></p><p>For the OP's purposes, he's pretty much out of timing so the next quest for power will be in boost........since he's already on a 2.8 i'd leave that alone and go to a 2lb or straight to a 4lb lower.......that would put this blower right in the sweet spot....24ish psi.</p><p></p><p>All that said there's always a give/take between timing/boost, but I tend to gravitate toward running less boost and more timing like the OP has for a generally less stressed, cooler running car......lower EGT's, less blower heat etc........some people go the other route but its more preference and dependent on what you're trying to do.</p><p></p><p></p><p>EDIT: from the video comments it sounds like this was indeed on a mustang dyno and run under simulated load. SAE corrected as well.......so these are pretty impressive numbers. This would be much closer to 800whp otherwise or more.</p></blockquote><p></p>
[QUOTE="DCguy, post: 16861437, member: 196849"] I think he's right on the money power wise....just curious if he was on a mustang dyno since those read a good bit lower. With timing you want to keep bumping it one degree at a time until the increase in hp begins to diminish generally speaking......then once you find that number I typically back it off 2 degrees to keep things safe. For pump E85, 23-24 degrees is about the limit of the safe range........so 20-22 degrees is what i'd hover around if you want it a bit safer. Beyond that i'd put a flex fuel sensor kit on it to allow the car to make timing/fuel corrections based on ethanol content. For the OP's purposes, he's pretty much out of timing so the next quest for power will be in boost........since he's already on a 2.8 i'd leave that alone and go to a 2lb or straight to a 4lb lower.......that would put this blower right in the sweet spot....24ish psi. All that said there's always a give/take between timing/boost, but I tend to gravitate toward running less boost and more timing like the OP has for a generally less stressed, cooler running car......lower EGT's, less blower heat etc........some people go the other route but its more preference and dependent on what you're trying to do. EDIT: from the video comments it sounds like this was indeed on a mustang dyno and run under simulated load. SAE corrected as well.......so these are pretty impressive numbers. This would be much closer to 800whp otherwise or more. [/QUOTE]
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Terminator Talk
My Cobra finally saw a dyno earlier this month...
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