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The Terminator
Engine/Tuning
Is my charge temp too high?
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<blockquote data-quote="BlueByYou" data-source="post: 16464511" data-attributes="member: 67103"><p>Hello everybody. I am hoping you guys can help me diagnose what feels like fuel cut off under higher acceleration.</p><p></p><p>I just got the car less than a month ago. My first Cobra. Some basic info.</p><p></p><p>2003 - Car is from Texas. Now in South Florida.</p><p></p><p>Gen 1 – 2.3 Whipple rebuilt with straight cut gears at about 18lbs on a 3” pulley. 600HP</p><p></p><p>Afco dual fan heat exchanger (some bent fins but nothing crazy)</p><p></p><p>IC and radiator expansion tanks</p><p></p><p>170 thermostat</p><p></p><p>When I first start the car and start driving, acceleration is peppy and strong. After about 20 or 30 mins of driving around, it feels slightly sluggish at tip in. A lot of traffic lights so a decent amount of waiting at lights. Just got an Aeroforce Interceptor and today was first drive with it connected. Engine temp was between 180 and 200. Intake temps were averaging 90 degrees. Charge temps slowly creeped up and eventually got to 150. While at that charge temp and rolling into some boost the car bucked something serious. Felt like the fuel was cutting out. As SOON as I let off the accelerator, the cars responds and will drive fine as long as I don’t get into higher boost. The car did the same thing when I first got it but I didn’t have the Interceptor to check numbers. I checked IC pump and it works. Did jumper method to test operation. Expansion tank is full of coolant. Can that charge temp cause the bucking? Once the car cools down for about 30mins, it doesn’t do it.</p><p></p><p>Could it be that IC pump is starting to fail? Can high humidity be a culprit? Any suggestions on what I can look at? Thank you for any help.</p></blockquote><p></p>
[QUOTE="BlueByYou, post: 16464511, member: 67103"] Hello everybody. I am hoping you guys can help me diagnose what feels like fuel cut off under higher acceleration. I just got the car less than a month ago. My first Cobra. Some basic info. 2003 - Car is from Texas. Now in South Florida. Gen 1 – 2.3 Whipple rebuilt with straight cut gears at about 18lbs on a 3” pulley. 600HP Afco dual fan heat exchanger (some bent fins but nothing crazy) IC and radiator expansion tanks 170 thermostat When I first start the car and start driving, acceleration is peppy and strong. After about 20 or 30 mins of driving around, it feels slightly sluggish at tip in. A lot of traffic lights so a decent amount of waiting at lights. Just got an Aeroforce Interceptor and today was first drive with it connected. Engine temp was between 180 and 200. Intake temps were averaging 90 degrees. Charge temps slowly creeped up and eventually got to 150. While at that charge temp and rolling into some boost the car bucked something serious. Felt like the fuel was cutting out. As SOON as I let off the accelerator, the cars responds and will drive fine as long as I don’t get into higher boost. The car did the same thing when I first got it but I didn’t have the Interceptor to check numbers. I checked IC pump and it works. Did jumper method to test operation. Expansion tank is full of coolant. Can that charge temp cause the bucking? Once the car cools down for about 30mins, it doesn’t do it. Could it be that IC pump is starting to fail? Can high humidity be a culprit? Any suggestions on what I can look at? Thank you for any help. [/QUOTE]
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Is my charge temp too high?
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