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2013-14 Shelby GT500
5.8L GT500 Rod Failure
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<blockquote data-quote="MrAjsTech" data-source="post: 16509765" data-attributes="member: 153636"><p>Huge (3.8L huge) update! I'm going to go in order:</p><p></p><p>After installing the new MFP crank support in the car I felt much better about the crankshaft staying together. With a little bit of push from Cody Chaney(@cody_5.4) I got the car ready to take to Orlando Speed World with some fresh new ET Street R Bias Ply 28x11.5x15. The goal was simple: Get used to the car, find out what the VMP traps, and come home with a 9 second time slip and we did exactly that! I will admit I was a bit terrified to go down the track with this car. On the street I drive through the spin but for some reason I was scared of crashing, spinning, and breaking the car. Luckily everything went great and after my first test pass all the nervous shakes went away and I was ready to make a real pass. My car was lacking a major suspension component and that is a sway bar/anti roll bar but I decided to still try to make a pass anyway. </p><p>1st pass(partial run) 14.xx aborted run basically just did a 1-2 pull and let off. </p><p>2nd pass(bogged too low of launch RPM) 11.7 @ 146 MPH</p><p>3rd pass(spinning) 10.0 @ 148 MPH -(ding ding starting to see trap speed)</p><p>4th pass(spinning and too low of tire pressure) 9.6 @ 148 MPH (consistent trap speed) 1.61 60 foot. </p><p></p><p>Unfortunately with a test and tune that was all the passes I got to make that night. IAT2 were terrible and Cody and I developed a theory that the VMP intercooler core we used was not working properly as shown in the video. If I had another pass to make suspension and tire pressure changes I think we could have gotten the car down into a 1.4X- low 1.5X 60 foot and a 9.2-9.4 pass. </p><p></p><p>[MEDIA=youtube]9ZBcMi73KMk[/MEDIA]</p><p></p><p>My ultimate goal is to go 8.9 or better keeping the car as streetable as possible. As of right now other than terrible gas milage(E85) you could drive the car anywhere with the radio and ac going and having a good time. </p><p></p><p>Fast forward a week and my new Whipple 3.8L arrived. This has been in the plans since July and I am super excited to test out what this new blower can do on a very capable 5.8L built motor. </p><p></p><p>[MEDIA=youtube]QhOtLTwAcTw[/MEDIA]</p><p></p><p>Cody and I decided to remove the VMP intercooler core while the blower was off in order to test our theory about the intercooler core:</p><p></p><p>[MEDIA=youtube]YylZNd6AUSY[/MEDIA]</p><p></p><p>First start with the Whipple: </p><p>[MEDIA=youtube]OAjkskhP1JA[/MEDIA]</p><p></p><p>First drive and testing the theory of IAT2 issues. I was so relieved today to finally see normal IAT2 temps. VMP had suggested thought that the high IAT2 issues were because of the cam degree being advanced causing exhaust to go into the intake and therefore higher temps. Cody, myself, and Jordan at MHS were stumped and really didn't think this would cause that much issue. Cody and I were almost confirmed on our theory that the intercooler core was not flowing water through the entire core at the track. The blower was so hot you could cook an egg on it (IAT2 showing 170) but yet the water in the reservoir was about 80 degrees (able to touch with your finger)</p><p></p><p>This video captures a great example of the before temps with the VMP core vs the stock core. </p><p></p><p>[MEDIA=youtube]Lgaxfur-whQ[/MEDIA]</p><p></p><p>I have a lot more to come. Feel free to ask me any questions and I will be updating this thread along the way.</p></blockquote><p></p>
[QUOTE="MrAjsTech, post: 16509765, member: 153636"] Huge (3.8L huge) update! I'm going to go in order: After installing the new MFP crank support in the car I felt much better about the crankshaft staying together. With a little bit of push from Cody Chaney(@cody_5.4) I got the car ready to take to Orlando Speed World with some fresh new ET Street R Bias Ply 28x11.5x15. The goal was simple: Get used to the car, find out what the VMP traps, and come home with a 9 second time slip and we did exactly that! I will admit I was a bit terrified to go down the track with this car. On the street I drive through the spin but for some reason I was scared of crashing, spinning, and breaking the car. Luckily everything went great and after my first test pass all the nervous shakes went away and I was ready to make a real pass. My car was lacking a major suspension component and that is a sway bar/anti roll bar but I decided to still try to make a pass anyway. 1st pass(partial run) 14.xx aborted run basically just did a 1-2 pull and let off. 2nd pass(bogged too low of launch RPM) 11.7 @ 146 MPH 3rd pass(spinning) 10.0 @ 148 MPH -(ding ding starting to see trap speed) 4th pass(spinning and too low of tire pressure) 9.6 @ 148 MPH (consistent trap speed) 1.61 60 foot. Unfortunately with a test and tune that was all the passes I got to make that night. IAT2 were terrible and Cody and I developed a theory that the VMP intercooler core we used was not working properly as shown in the video. If I had another pass to make suspension and tire pressure changes I think we could have gotten the car down into a 1.4X- low 1.5X 60 foot and a 9.2-9.4 pass. [MEDIA=youtube]9ZBcMi73KMk[/MEDIA] My ultimate goal is to go 8.9 or better keeping the car as streetable as possible. As of right now other than terrible gas milage(E85) you could drive the car anywhere with the radio and ac going and having a good time. Fast forward a week and my new Whipple 3.8L arrived. This has been in the plans since July and I am super excited to test out what this new blower can do on a very capable 5.8L built motor. [MEDIA=youtube]QhOtLTwAcTw[/MEDIA] Cody and I decided to remove the VMP intercooler core while the blower was off in order to test our theory about the intercooler core: [MEDIA=youtube]YylZNd6AUSY[/MEDIA] First start with the Whipple: [MEDIA=youtube]OAjkskhP1JA[/MEDIA] First drive and testing the theory of IAT2 issues. I was so relieved today to finally see normal IAT2 temps. VMP had suggested thought that the high IAT2 issues were because of the cam degree being advanced causing exhaust to go into the intake and therefore higher temps. Cody, myself, and Jordan at MHS were stumped and really didn't think this would cause that much issue. Cody and I were almost confirmed on our theory that the intercooler core was not flowing water through the entire core at the track. The blower was so hot you could cook an egg on it (IAT2 showing 170) but yet the water in the reservoir was about 80 degrees (able to touch with your finger) This video captures a great example of the before temps with the VMP core vs the stock core. [MEDIA=youtube]Lgaxfur-whQ[/MEDIA] I have a lot more to come. Feel free to ask me any questions and I will be updating this thread along the way. [/QUOTE]
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