TRD/ Magnuson 4.0 Supercharger Tips, Tricks, and Mods

Boost gauge shit

 

76mm throttle body installed .. might be defective tho. Throwing P2111 and going into limp mode. Won’t have time to mess with it this week.

Radiator installed
NST pulleys installed

 

I recall someone posting the same thing, back when the S/C group buy was going on. Shows available but then they tell you it’s not available. Bummer!

I have the same problem with the 70mm, P2111. I had it on for about a week, smooth sailing and then things went south. Tried cleaning adjusting tinkering etc with no luck. I put the 65mm back on and it runs like a champ.

 

This doesn’t sound very good.

 

It was fun trying to get home from the barber shop with the thing going into limp mode every time I let off the gas! Thankfully the Maestro module let me reset the code through the radio. Took about 11 times resetting the code to get all the way home, LOL

 

That thing is the shit for resetting codes.

 

You can try changing the cover plate with your 65mm. I did when I was doing some testing and it worked fine on the 76mm tb. The cover plate transfers throttle position to the ecu via a hall effect sensor attached to the tb butterfly gear.

I just pop riveted my cover plate back on but @loginfailed had a great idea and tapped threads in his tb and used screws.

Let us know if you try this and how it works out. I'm curious if this is a solid fix. There really isnt that much to these tb's. Here is the sensor on the cap. The sensor on the cap fits into the recess on this gear. This is the tb butterfly gear. There is a center gear (removed in this pic) that connects the motor to the butterfly.

 

You should reply back telling them to remove it from their fucking website then

 

Anyone else having issues with the larger throttle bodies?

@loginfailed, I'm guessing the cover plate swap didn't fix the issue if you put the stock TB back on?

 

He hasn't swapped his cover that I know of.

 

Right. I haven't swapped covers. I have one TB that works (original 65mm) and one that doesn't (70mm). I don't want to risk taking apart my good one. It's not really a priority for me. I was planning on re-visiting it later on.

 

I did

 

I have seen that a number of times with Camelback and others.

So far had good luck ordering from Toyota of dallas

Www trdparts4u.com

 

I have a 76mm throttle body. No problems at all. Have had it for about 2000 miles and Probly over a year.

 

Next time im calling if i see an iffy part

 

Do you really notice a power difference with the 76mm TB when the TRD SC inlet is 65mm?

 

No idea. I installed it when I put my supercharger on. Got mine for free so I figured why not. I’ll eventually port the supercharger snout as much as I can.

 

I noticed better throttle response and more top end.
I just datalogged a run last weekend after installing 640cc injectors. Pulled 351g/s which equates to roughly 415 crank hp.
Mods include:
Port matched supercharger
Mildly ported lower intake manifold
2.5 pulley. 11psi
640cc injectors
URD headers
Custom exhaust
URD intake
UCON
76mm tb

I have thought about removing the stock supercharger inlet and welding a flange near the 180° bend. The throttle body would mount to the flange. sc inlet after porting.
Before porting. Notice how the inlet gets larger right after the flange.

 

Do it!

 

Mine is a 76mm now. Runs as good or smoother than stock. Silicone for a gasket.