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Cobra 5.0 stroker Shortblock Can make it a longblock
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<blockquote data-quote="03cobratwin67s" data-source="post: 15498982" data-attributes="member: 183478"><p>His work has always been top notch. That's why me and my dad have been going to him for over 10 years. The motor was used for 1 year with a blower and cams. Made 800 horsepower and ran great. My air fuel ratio 500 to 1500 rpms was at 13.5 to 1 on e85. However, I changed my set up and went with a fast xfi, new injectors, twin turbos. He knew the car inside and out. He wrote me a base tune for the car with an air fuel ratio of 8.9 to 1 and he said just don't beat on it I was just going to make sure there were no coolant leaks or anything and then I was going to trailer it to have it dyno tuned. I'm just curious as to why my air fuel ratio would go from 13.5 to 1 to 8.9 to 1 just because I went turbo. And this is only a base tune, not for going over 1500 rpms. I had puddles of e85 coming out of my exhaust and my plugs were soaked in it. I brought the base tune back to him explaining to him what happened and that I believe it's too rich. He agreed and dropped on the VE table from 50 to 40 and told me that I can drop the number down even more if it's still too rich and I can bring it all the way down to 0 if needed, it won't hurt anything. The car seemed to run ok at 28 on the VE table. However, after the new set up I had less than 40 seconds of run time on that motor before it seized up. I've talked to many engineers, tuners, drag racers and they said 500 to 1500 rpm range 8.9 to 1 is way too rich and most likely vapor locked the motor causing it to self destruct. I drained my oil and there was about 2 gallons of e85 in my oil. Lidio was wary about writing me a base tune but he said just not to beat on it it was just a start up tune to make sure there were no problems before I trailed it there to the dyno. He never said That there is a possibility of blowing my motor just trying to start it and get it to idle for 30 seconds or so 500 to 1000 rpms. Also he was using a closed loop tuning with a gas wide band when I was running e85. Give me your honest opinion on what you think could have happened. Thank you.</p></blockquote><p></p>
[QUOTE="03cobratwin67s, post: 15498982, member: 183478"] His work has always been top notch. That's why me and my dad have been going to him for over 10 years. The motor was used for 1 year with a blower and cams. Made 800 horsepower and ran great. My air fuel ratio 500 to 1500 rpms was at 13.5 to 1 on e85. However, I changed my set up and went with a fast xfi, new injectors, twin turbos. He knew the car inside and out. He wrote me a base tune for the car with an air fuel ratio of 8.9 to 1 and he said just don't beat on it I was just going to make sure there were no coolant leaks or anything and then I was going to trailer it to have it dyno tuned. I'm just curious as to why my air fuel ratio would go from 13.5 to 1 to 8.9 to 1 just because I went turbo. And this is only a base tune, not for going over 1500 rpms. I had puddles of e85 coming out of my exhaust and my plugs were soaked in it. I brought the base tune back to him explaining to him what happened and that I believe it's too rich. He agreed and dropped on the VE table from 50 to 40 and told me that I can drop the number down even more if it's still too rich and I can bring it all the way down to 0 if needed, it won't hurt anything. The car seemed to run ok at 28 on the VE table. However, after the new set up I had less than 40 seconds of run time on that motor before it seized up. I've talked to many engineers, tuners, drag racers and they said 500 to 1500 rpm range 8.9 to 1 is way too rich and most likely vapor locked the motor causing it to self destruct. I drained my oil and there was about 2 gallons of e85 in my oil. Lidio was wary about writing me a base tune but he said just not to beat on it it was just a start up tune to make sure there were no problems before I trailed it there to the dyno. He never said That there is a possibility of blowing my motor just trying to start it and get it to idle for 30 seconds or so 500 to 1000 rpms. Also he was using a closed loop tuning with a gas wide band when I was running e85. Give me your honest opinion on what you think could have happened. Thank you. [/QUOTE]
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