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SN95 Cobras
'98 refuses to start
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<blockquote data-quote="baldguy" data-source="post: 15511084" data-attributes="member: 179649"><p>no, I had a tune specific to the equipment at the time. that being 24lb injectors, the blower, and mild exhaust. it had a lowered rev limiter to avoid the lean condition at high RPM. after I changed the exhaust out completely and removed the cats, I retuned. We opted to raise the rev limiter back up and coax out a bit more power, which meant going to bigger injectors. </p><p></p><p>during all that tuning and testing, fuel pressure never wavered. I don't have specific measurements to quote, but the tuner (whom I trust) was watching fuel pressure specifically to ensure the pump would handle the new injectors and all the fuel flow at high RPM/power. I don't know if there was something else we needed to look for, but he said it kept up with the flow easily. </p><p></p><p>do you think I should just swap the FPR to be 100% sure that's not it? I feel like almost everything else that *could* cause something like this has already been replaced. I'm going to do the plug wires soon for good measure, too</p></blockquote><p></p>
[QUOTE="baldguy, post: 15511084, member: 179649"] no, I had a tune specific to the equipment at the time. that being 24lb injectors, the blower, and mild exhaust. it had a lowered rev limiter to avoid the lean condition at high RPM. after I changed the exhaust out completely and removed the cats, I retuned. We opted to raise the rev limiter back up and coax out a bit more power, which meant going to bigger injectors. during all that tuning and testing, fuel pressure never wavered. I don't have specific measurements to quote, but the tuner (whom I trust) was watching fuel pressure specifically to ensure the pump would handle the new injectors and all the fuel flow at high RPM/power. I don't know if there was something else we needed to look for, but he said it kept up with the flow easily. do you think I should just swap the FPR to be 100% sure that's not it? I feel like almost everything else that *could* cause something like this has already been replaced. I'm going to do the plug wires soon for good measure, too [/QUOTE]
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'98 refuses to start
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