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SVT Shelby GT500
2012 TVS Swap ?s
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<blockquote data-quote="PM-Performance" data-source="post: 16408513" data-attributes="member: 176806"><p>So with about 16-17* total timing on a 3.0" upper pulley with a 2.3 FBO, my car made like 630's-640's with the same tq on 93. The timing was purposely kept low incase 91 was ever needed. Boost was like 12-13PSI off hand.</p><p>I have since had it retuned by another tuner and the car sees like 18.5-19* total timing and running a 2.396 upper on 93 and I cannot get the car to consistently keep power in it.Making ALOT more heat now and fought belt slip along the way. I have the belt slip for the most part corrected, but spinning the blower hard no matter what is gonna make more heat and its gonna lose power. Depending on the day and weather, the car will make 17.5-18.5PSI on that combo. </p><p></p><p>I switch to another tune when I have 100LL or an additive like Torco/Octanium/Boostane and my car sees like 21* of timing on that. Still fights the same heat issues, so I do not bother running that tune often because its pissing in the wind. I will on a cold night and out racing, but dead of summer, I do not even bother.</p><p></p><p>That being said, what I know now I would have just saved a ton of money and left the 3.0" upper on and kept the car at a consistent power level that I can easily duplicate and worry less about IAT issues and overspinning the blower.</p><p>I too want to run E85, but it is a LARGE increase in $$$$ to do this. I would atleast look into an additive in your case, but realize it trashes sensors and plugs quicker. E85 probably does as well.</p></blockquote><p></p>
[QUOTE="PM-Performance, post: 16408513, member: 176806"] So with about 16-17* total timing on a 3.0" upper pulley with a 2.3 FBO, my car made like 630's-640's with the same tq on 93. The timing was purposely kept low incase 91 was ever needed. Boost was like 12-13PSI off hand. I have since had it retuned by another tuner and the car sees like 18.5-19* total timing and running a 2.396 upper on 93 and I cannot get the car to consistently keep power in it.Making ALOT more heat now and fought belt slip along the way. I have the belt slip for the most part corrected, but spinning the blower hard no matter what is gonna make more heat and its gonna lose power. Depending on the day and weather, the car will make 17.5-18.5PSI on that combo. I switch to another tune when I have 100LL or an additive like Torco/Octanium/Boostane and my car sees like 21* of timing on that. Still fights the same heat issues, so I do not bother running that tune often because its pissing in the wind. I will on a cold night and out racing, but dead of summer, I do not even bother. That being said, what I know now I would have just saved a ton of money and left the 3.0" upper on and kept the car at a consistent power level that I can easily duplicate and worry less about IAT issues and overspinning the blower. I too want to run E85, but it is a LARGE increase in $$$$ to do this. I would atleast look into an additive in your case, but realize it trashes sensors and plugs quicker. E85 probably does as well. [/QUOTE]
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