3.4L TRD Supercharger rebuild

Cell phones camera come in handy when in a pinch, and don't be jealous )))
modified

 

Okay thanks a lot for the quick reply!

 

You guys have any recommendations on an aftermarket supercharger belt to use (if there is one)? I have no problem replacing mine with another Toyota one but just wondering if there's a better quality option out there. Mine's starting to develop small cracks in it.

 

GATES is the one you want, is better than the Toyota belt by far and best one available

 

thank you sir, I'll check 'em out

 

Also inspect your pulley, if it's a URD pulley and the paint is gone where the belt rides, good chance
the pulley material is wearing out, not gripping the belt riding high on the pulley ears and is slipping causing it to wear out the belt and pulley, my URD aluminum pulleys only lasted me about 30,000 miles, I have since switched to a steel pulley now that does not wear out.

 

Good to know, I'm on the stock TRD pulley that was put on ~40k miles ago with the TRD supercharger by the previous owner, but that was also about 11 years ago so I think time/aging has worn the belt down more than the mileage has. If I ever upgrade the pulley I'll definitely stick with steel.

 

Did you install the butt screw yourself or is that something for a machine shop?

 

Follow this write up. Super simple to do.

 

soooooo
What injectors are you supercharged guys running ? and Where did you get them?
My supercharged truck falls on its face bad at high RPM or going up hill.
I'm ready to take this dam thing off the motor.

I'm have trouble finding injectors that are not 400$ plus

 

You might have some over issues going on, the 3.4 motor with the supercharger wakes up at 3000rmps
on up. My motor pulls hard all the way up to red line.
Have you run a dyno test to see what your horse and AFR power curve is??
If everything is not WORKING perfectly with the engine AND SUPERCHARGER the setup doesn't work well.
A bad knock sensor, a bad fuel filter etc can throw it all off,

 

It's all stock

Only thing is the K/N intake and the super charger.
My engine in the pic below








It will pull strong off the line, but high rpm it starts to cutout or hesitate.

I was thinking of running different injectors. Theres a vid on youtube of a guy running N/A supra injectors. I was thinking of switching to them.

Here his the vid

 

what is your altitude?
I don't think you can just put in those large injectors without having a pigback system to address the larger flow, A bit larger maybe

I'm at 6000 feet and never had a problem with what you are describing and that was before I
added the methanol kit.
I think there is something else going on

 

I'm around sea level.


I'll drive it at lunch and video it. see if it can be noticed in the video.

 

I was under the impression that a bad injector would throw a code, do you have a CEL?

Might be your fuel pump struggling under the sudden stress/demand of higher RPMs

 

I have a CEL for a torque converter lockup solenoid.
but nothing for the motor...

 

Hmm....yeah I'd put my money on the fuel pump or filter, the fuel filter is super easy to replace on the v6. Costs like $20. I'd lean more towards the pump though. Do you hear it whine at all when idling?

 

I wouldn't toss out the injector idea I just think it's less likely to be that....seem to read of more people having fuel pump problems like this than you do bad injectors.

 

I can do the filter this weekend, cant hurt anything

I dont really hear the fuel pump. But the truck has Gibson exhaust so it's not super quite.

 

Maybe a new set of clean injectors would help.
I was trying to get just a little more flow because of the super charger