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Those big tires have most likely affected the speedometer. Use your cell phone. There is a cool free app for Android and Apple called HUD. It is a heads-up display for speed. I have a big time with it occasionally on Amtrak just to see how fast we are going... It uses GPS and the readout is large enough to see with your phone laying on the seat beside you.
I'm familiar with the gps apps. I used it on the way home after buying the truck. I'm just wondering if this turbo is even doing anything at all? It has a boost guage on the truck but never goes above 1psi. The guy told me that the turbo is 100mm race turbo. Plus the EGTs get high really quick. I dont wanna melt the pistons.
Thats a nice cooler, but it isn’t doing much there. Is it wide enough to go where it belongs?
Should I even bother to try and get it to work properly? Or will I have to spend a bunch of money trying to upgrade other components?
This truck didn't come with a turbo, so there is no place to put the intercooler. If there were about 4 more inches in front of the radiator it would fit perfectly.
Drill the metal ball out from the throttle shaft and turn the screw counter clockwise
Does that increase rail pressure? Is it safe? I dont wanna grenade the engine.
It increases rail pressure. You can put a gauge on it to monitor rail pressure at the fuel solenoid.
Ok, I take it you have done this before? I was thinking about louvering or putting a scoop in the hood above the intercooler. Do you think that will help?
Probably. I have the radiator intercooler setup for the M939s. Ive done lots of mods to the small cam motors and driven one all over the country a few dozen times
Ok, I'll try those things out. How far should I go with the screw? 1/4, 1/2 turn? What pressures should I be looking for or what should I not go above? And will any fuel pressure guage work?
Ok, thanks for the help. I appreciate it. One last question. The exhaust is vented straight up thru the hood from the turbo. Will that hurt anything?
Other than cover your windshields in soot. No.
Lol, ok. Funny thing is, no smoke whatsoever comes out
I'm def gonna take his advice. I'm seeing pretty high EGTs and zero smoke coming from the stack, so I'm gonna follow his advice as well as fabbing up an air scoop for the intercooler and see if that may help out as well. I want to get some small tires, the ones I have are 20inches wide so they rub in front and a little in the back. I have the 24r21 tires.
