turbo 4.3 sonoma project.
#101
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28lbs is the exact number i programed in to get my ltrims back in line.
(28x6)x2 = 336fwhp worth of fuel. thats pretty good. add a little meth to it and things will be great.
probably be happy around 10psi. the goal is 300rwhp.
i hope the owner steps up to some drag radials and cal tracs. then later maybe a little more power. if we try and go over 300rwhp i will talk the owner into some larger injectors.
(28x6)x2 = 336fwhp worth of fuel. thats pretty good. add a little meth to it and things will be great.
probably be happy around 10psi. the goal is 300rwhp.
i hope the owner steps up to some drag radials and cal tracs. then later maybe a little more power. if we try and go over 300rwhp i will talk the owner into some larger injectors.
there was a guy on s10forum i think that was running a frount mount with 60lb injectors... idk how it worked out for him its been awhile since i read that thread... get some vids of it man!
#105
the project is pretty much done. got the meth line ran, vacuum lines to the meth kit and wg. wireing for the meth kit, wire for the return pump, wire for the wideband, gauge mounted on dash, low meth light done. i ran the output on the lc1 over to the gas tank map sensor. now i can log a/f ratio and who needs gas tank pressure anyways.
just have a couple of little things to take care of. should be test driving it tomorrow and taking it to the dyno soon.
just have a couple of little things to take care of. should be test driving it tomorrow and taking it to the dyno soon.
#108
first test drive. only about 2.5psi and it didn't feel quick at all
not sure what timing to run. it is around 22deg which might be good for this engine. meth is working and pushed the a/f ratio down into the lower 10's.
no issues at all yet and i drove it around for awhile.
going to toss a 6psi spring in there and try it again. lean it out a hair, research where the timing should be... i will report back.
not sure what timing to run. it is around 22deg which might be good for this engine. meth is working and pushed the a/f ratio down into the lower 10's.
no issues at all yet and i drove it around for awhile.
going to toss a 6psi spring in there and try it again. lean it out a hair, research where the timing should be... i will report back.
#110
woohoo, it is done. feels pretty good too. a buddy of mine came over and watched the laptop while i drove and everything looks pretty good.
started out at 3psi(23lbs of air or about 230fwhp) and the truck didn't feel too great. no issues, no leaks, not much bumping around but there is a little rumble that i can't locate. the laptop looked good so we swaped out the wg spring to a stronger one and ended up aroud 6psi(29lbs of air or about 290fwhp). ohh yeah, it was starting to feel decent. not crazy fast but not stock anymore. everything looked good so we pushed the boost up to 10psi(36lbs of air or about 360fwhp). feels even better. the airflow numbers indicate around 360 fly wheel hp and i dont doubt it. 1st gear just gets wheel hop. i was waiting till about 30mph and 2nd gear to punch it and it was still breaking loose.
10psi is pleanty for today. now we need to get to the dyno and dial things in. right now the a/f ratio is pretty rich. there is also a hesitation right off of idle that i hope dynotom has an idea for. i can see it going lean but i dont know how to add fuel right there. this is the funest part of the project. working into the power... after it is tuned i am going to use the gtech to set up the shift points. seems like it is shifting too late to me. power if falling off and it is hanging there a little before the shift happens. it is only 5300rpm or so but if that is when it is done i guess that is when it is done.
started out at 3psi(23lbs of air or about 230fwhp) and the truck didn't feel too great. no issues, no leaks, not much bumping around but there is a little rumble that i can't locate. the laptop looked good so we swaped out the wg spring to a stronger one and ended up aroud 6psi(29lbs of air or about 290fwhp). ohh yeah, it was starting to feel decent. not crazy fast but not stock anymore. everything looked good so we pushed the boost up to 10psi(36lbs of air or about 360fwhp). feels even better. the airflow numbers indicate around 360 fly wheel hp and i dont doubt it. 1st gear just gets wheel hop. i was waiting till about 30mph and 2nd gear to punch it and it was still breaking loose.
10psi is pleanty for today. now we need to get to the dyno and dial things in. right now the a/f ratio is pretty rich. there is also a hesitation right off of idle that i hope dynotom has an idea for. i can see it going lean but i dont know how to add fuel right there. this is the funest part of the project. working into the power... after it is tuned i am going to use the gtech to set up the shift points. seems like it is shifting too late to me. power if falling off and it is hanging there a little before the shift happens. it is only 5300rpm or so but if that is when it is done i guess that is when it is done.