2010 base 4.8 truck 2wd mpt76q trim build
08-10-2010, 12:38 AM
#22
did the fuel pumps today, 2x 255lph in the tank, working great with the stock returnless surge tank pressure bleed thing. injectors are on their way, we are going to do some VE tuning tomorrow hopefully, cant really make any boost at all with these baby 32lb injectors.
here are some pics of the hackjob 100% working in tank 2x255s
here are some pics of the hackjob 100% working in tank 2x255s
08-10-2010, 03:35 PM
#25
still waiting on injectors, they will be here thursday, i doubt we will be able to see much boost, we are going to start tuning the VE tables tonight.
i don't think it is DOD
truck feels more powerful at 1/4 throttle than it ever has WOT lol
i don't think it is DOD
truck feels more powerful at 1/4 throttle than it ever has WOT lol
08-10-2010, 05:12 PM
#27
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I would like to know about this as well. I think you have to run a small pump on the return side to pump the oil back in the pan. when the turbo is sitting low like that.
Nice build Id like to do something like this with mine. I would like some more pics of the piping underneath and under the hood.
Nice build Id like to do something like this with mine. I would like some more pics of the piping underneath and under the hood.
08-10-2010, 06:19 PM
#29
I would like to know about this as well. I think you have to run a small pump on the return side to pump the oil back in the pan. when the turbo is sitting low like that.
Nice build Id like to do something like this with mine. I would like some more pics of the piping underneath and under the hood.
Nice build Id like to do something like this with mine. I would like some more pics of the piping underneath and under the hood.
08-13-2010, 02:30 AM
#30
well i got the 75lb injectors today... but they are the wrong size, they are like 1/4 inch too short, ******* sucks. yeah well i guess i ahve a set for the g8 now...
added a boost gauge to the truck and decided to take it to the dyno and see what the stock injectors can do...
now as all projects go, specially 4 day turbo truck projects, there were some hiccups, we were only hitting 2psi on the lowest spring in the gate. turns out its just that weak, it comes with 3 springs, the weakest with the pre-load turned all teh way down was only hitting 2psi. after checking everything for boost leaks i pre-loaded it more and it hit 3psi. then with a mbc turned up it hit 6max, now we were rolling...
threw in the next step spring, hits 4-5psi
cranked up we hit 9psi for now running close to the end of the stock injectors.
we were running the truck in 2nd gear on the dyno because it does 99mph in 2nd gear, the only thing that sucks is the dyno roller weighs alot less than teh truck does, so it spools later, way later than the truck does on the street, so the whole dyno chart its basically spooling, you can see with the power lines...
other than that we will do some street driving tomorrow, it feels amazing on the street.
base stock pull vs base turbo tune for now on 9psi
difference in injector size... fawk
half(.5psi) check valve that needs to be tighter... going with 14psi
video on its way, hold tight.
added a boost gauge to the truck and decided to take it to the dyno and see what the stock injectors can do...
now as all projects go, specially 4 day turbo truck projects, there were some hiccups, we were only hitting 2psi on the lowest spring in the gate. turns out its just that weak, it comes with 3 springs, the weakest with the pre-load turned all teh way down was only hitting 2psi. after checking everything for boost leaks i pre-loaded it more and it hit 3psi. then with a mbc turned up it hit 6max, now we were rolling...
threw in the next step spring, hits 4-5psi
cranked up we hit 9psi for now running close to the end of the stock injectors.
we were running the truck in 2nd gear on the dyno because it does 99mph in 2nd gear, the only thing that sucks is the dyno roller weighs alot less than teh truck does, so it spools later, way later than the truck does on the street, so the whole dyno chart its basically spooling, you can see with the power lines...
other than that we will do some street driving tomorrow, it feels amazing on the street.
base stock pull vs base turbo tune for now on 9psi
difference in injector size... fawk
half(.5psi) check valve that needs to be tighter... going with 14psi
video on its way, hold tight.
08-13-2010, 10:22 AM
#33
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let them get it tuned with the proper injectors and see how it runs.
08-13-2010, 10:54 AM
#35
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im not gonna go any further as to not pollute the thread. these guys arent dummies they'll get good performance at the track (most important) out of it. wait and see.
08-13-2010, 11:09 AM
#36
it does seem like a low number for 9lbs
only bout 15hp per psi
what size turbo are you running?
this is an mpt76, i think thats like a 72mm if you were to get a turbonetics or similar.
08-13-2010, 11:36 AM
#38
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Glock also ran a 4.8 with a mp76 and gone 11.0@125 on 14 psi i do believe
i know with my setup i was near 29 rwhp per psi
4.8s like timing. you can run a lot more timing in the 4.8 then you can other motors. i ran 21-23* in my setup on pump gas
never pushed a drop of water, never had over heating issues. no issues what so ever
