turbo 4.3 sonoma project.
11-22-2009, 10:21 AM
#91
fired it up. gota love that smoke as all the oily finger prints burn off. had a couple of small issues and worked thru those.
i had the flange on the tb extended. i think the guy i had weld on the extension didn't pull out the sensors. both the iac valve and tps were dead. good thing i had a spare set laying around.
then when i tried to tune for the slightly larger injectors my adjustments were having no effect. i ended up copying most of the numbers from a 2000 silverado over. stuff like offsets, short pulse limit. after i did that i could make changes to the flow rate that had effects and i was able to get the ltrims where i wanted them.
almost time for a spin. need to wire the meth kit, wire the wideband and wire the return pump. i wish i had a lift so i could take some better pics under the truck. it really looks nice under there.
i had the flange on the tb extended. i think the guy i had weld on the extension didn't pull out the sensors. both the iac valve and tps were dead. good thing i had a spare set laying around.
then when i tried to tune for the slightly larger injectors my adjustments were having no effect. i ended up copying most of the numbers from a 2000 silverado over. stuff like offsets, short pulse limit. after i did that i could make changes to the flow rate that had effects and i was able to get the ltrims where i wanted them.
almost time for a spin. need to wire the meth kit, wire the wideband and wire the return pump. i wish i had a lift so i could take some better pics under the truck. it really looks nice under there.
11-23-2009, 09:47 AM
#95
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nice man. get some vids up so we can hear and see it. im still working around mine trying to get a little bit of money together to get the marine intake. Im wanting to buy hp tuners sometime soon so i can tune myself and other people around here. let us know of and issues you have if any with the setup. great work!!!
11-23-2009, 12:58 PM
#97
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yea the injectors are supposed to be 23.5 or 24lbers. be just fine for a stock 4.3 and a little bit of boost. id guess anything over 6psi you would need to switch to 42lb or even 60lbers depending what you are pushing.
11-23-2009, 04:32 PM
#98
(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.
