I'm not the tuning expert, I gave Justin @ VMP all the data he needs, I figure he knows what he's doing. IMO the car runs great and I'm happy. It's my daily driver on a stock internals etc. So it has more than enough power for me right now and I have 0 issues in being the slowest FI 5.0 on here ;)
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I'm sure he does too. I wasn't knocking it at all. I was saying you're in really good shape unless he really messes up the A/F. This is the 93 tune right?
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Oh I know lol I was j/k. Yea I told him I was using shell 93 premium.
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Dear lord. lol Stay away from Shell gas.
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All the info I've got is mainly from tuners. I don't really have factual info about why some gas is better than others. All I know is that Shell gas overall seems to cause knock retard on tuned/performance vehicles. Had it happen to me once personally. Never got it since.
Everyone seems to think Exxon/QT/BP is the gas to use on a tuned car. |
LOL I initially had a tank of Exxon 93 on the first tune revision and he told me he thought I had bad gas because of the Knock sensor readings. Asked me to fill up with a different "name brand" gas, so I filled up with Shell 93 and he said that it was better. Go figure...
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Ha ha damn gas lol!
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I used Qt gas on my first data log I sent to Justin. It had some knock. When I switched to Chevron it was way better. I've also had good luck with shell too. All were 93 octane. I think I'm at 15 degrees of timing with no problems.
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Glad you liked everything.
After having dynoed, datalogged, and open tracked a bunch of 5.0s I'm not crazy about high timing on these engines on pump gas. I generally give the KS about +/- 3* leway, on most cars it will start out with 12-14 and add some timing, but on some it runs in the middle. You can often get away with an extra couple degrees on the dyno and show 20-30rwhp more. The good thing is once you get into that timing range they can take a ton of abuse, I've opened tracked my TVS Boss on 91 oct with 230F coolant temps and 150F intake temps and it's been happy with 13-14* with an 82mm pulley/10psi. I've found the same with Jeff Lacina's VMP TVSed GT that he open tracks, and he driver harder than me. I find a little torco goes a long way and lets us get into the 18-20* range very safely. |
Do you have a release date on your 8 rib set up?
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I use QT, sounds to me like I should have Brent or Kevin do some data logging and tell me how my tune looks haha.
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Bad ass! Someday...
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