Got my CTS-V dyno tuned today.
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Got my CTS-V dyno tuned today.
And man was it horrible.
First run
https://www.youtube.com/watch?v=iSoW...ature=youtu.be
I was told the K&N filter was oiled and the MAF needed to be cleaned.
Second and third run
https://www.youtube.com/watch?v=b88E...ature=youtu.be
https://www.youtube.com/watch?v=WrEr...ature=youtu.be
This is the best they could do
They took off my engine cover to do a fuel pressure test and seen writing on the intake, they think it's a replacement motor in the car. My fuel pressure is dropping to 50 in the higher revs. I need to go back for MAF screen, fuel filter, plugs and wires. They also think I have crap fuel in the car. I go to a small station near my house and only use super. But he said he can almost guaranty im not runnin 91+.
I'll go back in for the repairs and they'll throw the car back on the dyno for no charge in a week or so.
Im not happy about this being around 20whp down from where I should be, but I am glad I got some info on my car
First run
https://www.youtube.com/watch?v=iSoW...ature=youtu.be
I was told the K&N filter was oiled and the MAF needed to be cleaned.
Second and third run
https://www.youtube.com/watch?v=b88E...ature=youtu.be
https://www.youtube.com/watch?v=WrEr...ature=youtu.be
This is the best they could do
They took off my engine cover to do a fuel pressure test and seen writing on the intake, they think it's a replacement motor in the car. My fuel pressure is dropping to 50 in the higher revs. I need to go back for MAF screen, fuel filter, plugs and wires. They also think I have crap fuel in the car. I go to a small station near my house and only use super. But he said he can almost guaranty im not runnin 91+.
I'll go back in for the repairs and they'll throw the car back on the dyno for no charge in a week or so.
Im not happy about this being around 20whp down from where I should be, but I am glad I got some info on my car
#6
Yeah, I thought 330ish was pretty standard for a bone stock V even with CAI.
Once you polish up some of those details and retune maybe hit 350ish?
Also depends on the dyno.
Once you polish up some of those details and retune maybe hit 350ish?
Also depends on the dyno.
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Nothing wrong with cleaning your MAF, but I don't think you'll see much more than you already have. A catback isn't where you'll see the gains from an exhaust system, headers are where it's at.
#11
it has as much as 10-20% ethanol in it which lowers the stoich value of the gas... just because you have not had an issue yet does not mean you won't in the future... that's just playing with fire... drop it down and save yourself some worry... at most you would lose 4-5hp if that
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He ran 20whp down IMO too.
Your dynojet shows 360, his shows an original run of 320! and then another of 340... Something is most likely up. Compression test, and time for upgraded fuel pump \ harness. One or the other might be on the way out.
Your dynojet shows 360, his shows an original run of 320! and then another of 340... Something is most likely up. Compression test, and time for upgraded fuel pump \ harness. One or the other might be on the way out.
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The 360 is with Headers.
Also my baseline, is incredibly close to his and tunes don't make 34hp(not on a factory car).
Also my baseline, is incredibly close to his and tunes don't make 34hp(not on a factory car).
Last edited by InfrareV; 05-31-2014 at 11:49 AM.
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He already has headers. LOL Thats the issue.
Compression test. Check to make sure thats the right engine in there too, if thats not the stock motor. Not some LS1 in there or something.
Compression test. Check to make sure thats the right engine in there too, if thats not the stock motor. Not some LS1 in there or something.
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