2010 base 4.8 truck 2wd mpt76q trim build
#102
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Its off performance trucks it means New New body style. I think. It means the newest body style Chevy truck. These trucks are really heavy. They weight is around maybe a little more than an extended cab truck from the previous body style. Makes his runs a little more impressive his race weight is probably around 5000 pounds+.
#104
me and corey swapped converters today, its ****** perfect now.
the converter stalls like 2500 and stops, then you can pump up the brakes, floor the gas, it hits like 6psi, then keeps going up, itll open the gate on 10psi and then its at like 3400 rpm, holds tight.
tomorrow we are going to do some more tuning and bring the boost to 14psi
the converter stalls like 2500 and stops, then you can pump up the brakes, floor the gas, it hits like 6psi, then keeps going up, itll open the gate on 10psi and then its at like 3400 rpm, holds tight.
tomorrow we are going to do some more tuning and bring the boost to 14psi
#108
we are gunna dyno it again tomorrow and see how it does, but i have a small roller dynojet and before, it hit 9psi on the dyno and 12psi on the street
now that it has a good driveshaft i guess i could rip it in 3rd gear on the dyno tomorrow and see what it puts down.
probably a decent amount of power.
the truck will run alot better at the track with this converter in it that doesnt suck.
#109
well with the truck hitting close to 13psi on the street we figured we would try to dyno it on the rollers, this truck hates the dyno, doesnt make full boost and runs rich as ***** on the dyno only, but we figured why not...
well it ran 10psi and it was 10.0 AFR and here is how it did in 2nd gear
3rd did the same thing, and it hit 160mph and i let out lol converter seems very efficient to hit that kind of mph whew.
also having a problem over 14,500 freq on the mafs, it wont take anymore fuel and it runs lean no matter what over 14psi
any guesses?
well it ran 10psi and it was 10.0 AFR and here is how it did in 2nd gear
3rd did the same thing, and it hit 160mph and i let out lol converter seems very efficient to hit that kind of mph whew.
also having a problem over 14,500 freq on the mafs, it wont take anymore fuel and it runs lean no matter what over 14psi
any guesses?
#110
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I have the same problem trying to spool the turbo on the dyno when the converter is unlocked. Try spooling it with the brakes a little and then let it rip. I have also used the dyno brake to help spool it but my buddy doesn't like doing that to his dyno too often so we just hold it a little with the trucks brakes.
#112
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I'm running 2bar SD tune. How did your fuel pressure and IDC's look? Sounds like you might be out of fuel. Are you running meth?
At 14psi I'm at 85% IDC and I'm running a single 625cc meth nozzle on top of dual 255's and 60lbs injectors.
At 14psi I'm at 85% IDC and I'm running a single 625cc meth nozzle on top of dual 255's and 60lbs injectors.
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#117
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I assume you have a returnless system. I would think that two 255 pumps and 80lb injectors would be enough but I would check your fuel pressure and see if its dropping off. I know a lot of people convert to a return style system to help.
#118
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I run 2xWalbro 255 w/8 gauge power wire/ 80lb injectors at 58psi (around 92lb), 8an feed, return style. I was at 79% duty at 617HP on E85. Now with a 75 dry shot, i'm around 95%. Should be around 700 wheel and i'm about out of fuel. Love the e85, but it sucks down roughly 20% more fuel.
Also, Denmah, nice build man. Enjoy reading the updates.
Also, Denmah, nice build man. Enjoy reading the updates.
#120
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I run 2xWalbro 255 w/8 gauge power wire/ 80lb injectors at 58psi (around 92lb), 8an feed, return style. I was at 79% duty at 617HP on E85. Now with a 75 dry shot, i'm around 95%. Should be around 700 wheel and i'm about out of fuel. Love the e85, but it sucks down roughly 20% more fuel.
Also, Denmah, nice build man. Enjoy reading the updates.
Also, Denmah, nice build man. Enjoy reading the updates.
John
EDIT: I guess he never said where he was at Duty Cycle wise, Maybe I should just stay out of it
Also, Is that the stock cam making the torque peak so high??
Last edited by dueces; 09-14-2010 at 11:06 PM.