I heard pinging!
Yes I keep hearing a little pinging right at 4600rpm. I dont know why it its. I looked at my dyno sheet and the a/f ratio is around 11.5 at 4600... Maybe too much timing and no intercooler? Im going to call brent over at Delk and see if he can fix it. :mad:
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Maybe too much timing and a lot of heat.
BTW, I see you're going with the intercooler next. Have you seen the DIY ones on MPH? |
the a/f has little effect on pinging. You have to much timing or its running to hot with not enough octane.
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I am running 93 octane. That should be good enough for 8psi. I guess its just the timing then. Im taking the car to brent in about 2 hours. Maybe he can work it out, just hope I dont lose even more power from backing the timing off.:shakeno: Or will that add power since it wont be pinging? Im going to the 1/8th mile tonight and ill prolly throw a bottle of octane booster in the tank like I did last time. Seemed to work great with the n20....
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dont add octane boosters they crap and hardly raise your true octane level. Run 93 and go with it. Also it could of been a bad tank of 93 not all gas stations are nice and really put 93 in there. For instance one station in the fl keys where i grew up a freind worked there and they really only carried 89 thats it. they watered it down for the 87 octane people and for hte 89 and 93 it was really just 89. Thats another good reason i only use name brand gas now. I stay away from the no name places.
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Originally Posted by spike_africa
(Post 224881)
dont add octane boosters they crap and hardly raise your true octane level. Run 93 and go with it. Also it could of been a bad tank of 93 not all gas stations are nice and really put 93 in there. For instance one station in the fl keys where i grew up a freind worked there and they really only carried 89 thats it. they watered it down for the 87 octane people and for hte 89 and 93 it was really just 89. Thats another good reason i only use name brand gas now. I stay away from the no name places.
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the only places that I like for gas are:
texaco conoco unocal sunoco good american oil refined in american plants. |
well i got it all fixed. Took it to brent and he just pulled a little timing. Runs with no pinging now! And I didnt feel a loss in power!:D
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Did it dyno the same as before?
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Originally Posted by WaterDR
(Post 225068)
Did it dyno the same as before?
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Doesnt matter, just see what it runs at the track.
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Originally Posted by 03gtmustang
(Post 225348)
Doesnt matter, just see what it runs at the track.
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Yeah, you should be cutting 1.6's with good tires and suspension.
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