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SVTPerformance's Chain of Restaurants
Tuning À la carte
Tuning out hot start issues
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<blockquote data-quote="SnakeBoostE85" data-source="post: 15374315" data-attributes="member: 160175"><p>Well guys I tried everything under the sun yesterday. Spent several hours in the car with PRP and didn't get anywhere... all sort of combinations were tried. Less/More fuel, less/more air, less/more timing...timing while exiting crank etc... Everything I did only seemed to exacerbate the problem or just didn't make any difference. </p><p></p><p>I'm convinced at this point the only way to solve this is to try and keep the fuel cooler. Perhaps a return line heat sink? </p><p></p><p>If your running E85 with a roots blower and return fuel system and you are NOT having these issues, I want to know how you are setup. Please share your tune strategy, fuel system configuration, anything in the system to cool the fuel etc... </p><p></p><p>I have also proven that cooling the fuel pretty much solves the issue, because I will go to the gas station heat soaked with a near empty tank and fill up with fresh E85 that is nice and cool give it a couple primes to clear out the hot stuff and boom - it fires right up.</p><p></p><p>Also something to consider just from a heat/pressure, thermodynamics perspective.... I live at close to 7500 feet. I often wonder if that is playing a role, because the boiling point will be even lower for E85 at this altitude.</p></blockquote><p></p>
[QUOTE="SnakeBoostE85, post: 15374315, member: 160175"] Well guys I tried everything under the sun yesterday. Spent several hours in the car with PRP and didn't get anywhere... all sort of combinations were tried. Less/More fuel, less/more air, less/more timing...timing while exiting crank etc... Everything I did only seemed to exacerbate the problem or just didn't make any difference. I'm convinced at this point the only way to solve this is to try and keep the fuel cooler. Perhaps a return line heat sink? If your running E85 with a roots blower and return fuel system and you are NOT having these issues, I want to know how you are setup. Please share your tune strategy, fuel system configuration, anything in the system to cool the fuel etc... I have also proven that cooling the fuel pretty much solves the issue, because I will go to the gas station heat soaked with a near empty tank and fill up with fresh E85 that is nice and cool give it a couple primes to clear out the hot stuff and boom - it fires right up. Also something to consider just from a heat/pressure, thermodynamics perspective.... I live at close to 7500 feet. I often wonder if that is playing a role, because the boiling point will be even lower for E85 at this altitude. [/QUOTE]
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SVTPerformance's Chain of Restaurants
Tuning À la carte
Tuning out hot start issues
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