nitrous pull on the dyno... anyone here a problem?
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nitrous pull on the dyno... anyone here a problem? Unless it's music I can't tell ****.. anyone hear anything wrong with the motor here?
this was on 109 octane and the 150 jets, just a quick tap. The guy in the car, the guy behind the car and the guy across the shop said they could hear something, I couldn't hear it at all and still can't.
this was on 109 octane and the 150 jets, just a quick tap. The guy in the car, the guy behind the car and the guy across the shop said they could hear something, I couldn't hear it at all and still can't.
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Originally Posted by TwoFast4Lv
no idea what it was but it sounded nasty
Originally Posted by Oso SS
i think too much timing and too much spray (for now). which would explain why the car went 13.40s stock.
What mods do you have done anyway?
Originally Posted by Oso SS
i think too much timing and too much spray (for now). which would explain why the car went 13.40s stock.
BTW, 13.4 stock is close to average for LS1 fbodys. What mods do you have done anyway?
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From: Scottsdale AZ
Originally Posted by brad8266
Too much timing with 109 octane on a tiny 150 shot??? Highly doubtful. A 150 shot is fine on stock timing with 93 octane. What is your timing at at WOT? You need to scan while at WOT and see if the PCM is pulling timing. With a 150 shot and that octane fuel, the only kind of knock you should get at all is false knock which can come from mods like longtubes and catbacks. I didnt hear anything bad in the clip. Scan the knock retard to see if there is any knock if you really think something is wrong.
BTW, 13.4 stock is close to average for LS1 fbodys. What mods do you have done anyway?
BTW, 13.4 stock is close to average for LS1 fbodys. What mods do you have done anyway?
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Verdad Gallardo 10.:1 is way too rich too. You could possibly be washing the cylinders down with fuel, which can cause plug issues. Your NA AFR is good so I would try using a smaller fuel jet and see how it goes with the 100 jets. Try to get AFR around 11.5:1 with the 100 and 150, thats plenty safe and not to much fuel that the engine cant burn off.
Are you tuned at all right now?
Are you tuned at all right now?
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Originally Posted by brad8266
10.:1 is way too rich too. You could possibly be washing the cylinders down with fuel, which can cause plug issues. Your NA AFR is good so I would try using a smaller fuel jet and see how it goes with the 100 jets. Try to get AFR around 11.5:1 with the 100 and 150, thats plenty safe and not to much fuel that the engine cant burn off.
Are you tuned at all right now?
Are you tuned at all right now?
More money
Originally Posted by Oso SS
No there is no tune in my car right now. 10:1 is way too rich, I agree, but I'm not about to start messing with the fuel jets lol. I'll just get it on the dyno and have it tuned More money
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Originally Posted by brad8266
What size jets are you using for the 100 and the 150 shot anyway? Maybe you are just using thw wrong size jets in the first place.
the knock you are seeing is probably false knock. with that a/f ratio and timing pulled out, AND 109 octane gas i don't see how it could ping. does it pick up knock on motor or just on the juice? could be a fuel pressure or fuel delivery problem however.
tough call if the plugs looked fine though. next time you have it on the dyno do a nitrous pull and shut it right off after the pull. pull a couple plugs then and see how they look. im a firm believer that no matter what the goddam computer says about knock, if the plugs are definetly good and the a/f is definetly good, and the timing is correct you are good. **** the computer at that point because it is incorrect.
tough call if the plugs looked fine though. next time you have it on the dyno do a nitrous pull and shut it right off after the pull. pull a couple plugs then and see how they look. im a firm believer that no matter what the goddam computer says about knock, if the plugs are definetly good and the a/f is definetly good, and the timing is correct you are good. **** the computer at that point because it is incorrect.
