Evo 8 not reaching full boost

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Apr 22, 2013, 04:17 PM

#31

Jonnysc14

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Im actually having the exact same symptoms as the OP. Car hestitates going into boost and only get 15psi nothing more. Example I go into 3rd gear and hold at 3k rpm then I gun it, car gets to 5k like normal then drops to 4k. Took it to a shop and say its the clutch because its not grabbing the gears. Took it to the dealer where I bought it and said it might be a boost leak, which I also thought might be the problem. Havent checked the spark plugs or wires though.

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Apr 22, 2013, 09:49 PM

#32

701evo

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Quote:

Originally Posted by MechTech

You said you just changed to shell 91. What were you using previously? Cars can become upset by changing brands of gas no joke. Were you using 91 before?

I was using a different local brand of fuel" Siminsons" 91 it . I can't seem to find any good 91 around that doesn't contain 10% ethenal . Is it bad to use that? I know shells vforce has 10% in it at it clames to contain up to 20 % more cleaning adjents and it's cheaper then the other gas I was getting lol