TRD/ Magnuson 4.0 Supercharger Tips, Tricks, and Mods

Sounds good, I'll be calling muffler shops tomorrow.
Any recs on a gauge that won't break the bank?

 

AEM X series and a Denso sensor. Buy the gauge alone, buy the sensor using the Denso sensor replacement thread I provided on page 1.

 

I have a legitimate question...

Has anyone went FULLY catless on factory manifolds or even on shorty/ longtube headered exhaust setups and if so, have they seen a reduction in boost pressure (or not if they didn't have a restriction in their system) coupled with a extra kick in the pants for power?

Any data via HPTuners to back this up? This part is just complimentary, but not necessary.

I am experimenting with some witchcraft here that depends on this crews feedback.

 

My gawd! I lover your response. I have the same noise on my truck. I have thought about asking. Lol! It crazy to me how much noise the supercharger makes other than a wine.

 

I am long tube headers boosting way past 10+psi. My gauge runs out. I am waiting to drop in JFR Y and 3” all the way back. There is a cat back on the Y and a resonator. Not what you wanted but I fully anticipate drop 2-3 psi just based upon opening up the Y pipe.

 

I tell people it is a small diesel

 

I just put a new exhaust on my truck with the help of a friend that can weld. 2.5" factory style flange at the y-pipe to 2.5" resonator that's 10" long that has an adapter to 3" pipe to a 8x5 muffler and a turndown. It's loader than I wanted, but no drown and throttle response is smoother.
It's amazing how a 2.5 exhaust with a chambered muffler choked down the engine.

 

Question for the gents using the ultra gauge.
How accurate is your boost pid?

 

I don’t have a boost pid. Are you using the phone version?

 

Yes I am. It seemed accurate when the supercharger was stock. I put a 2.7 and I have seen it 11.2-11.3 psi. So I was curious. It seems like that would be high to me.

 

Well it's a rotational assembly with two giant rotors moving incredibly close in tolerance to the housing itself. To say it's going to be 1000% quiet is just crazy talk.

 

It is. You have a restricted exhaust or intake.

 

Still looking for more feedback regarding catless trucks. I'm trying to determine if the cats are really restrictive and if so, how much.

 

Thank you sir, will do.

 

I didn’t know it had that. Very interesting especially since we don’t have a map sensor

 

That's what I was thinking. So it is obviously a calculated number. That is why I asked.

 

Fully catless you will see 1-2 psi reduction in boost readings.

 

So are you asking about keeping the stock manifolds and/or stock ypipes and go catless with them. I’ve never heard of anyone ever doing this.

Cause most people replace stock manifolds to headers and stock ypipe to a custom equal length catless ypipe and yield huge gains. Dyno graphs prove this. And you probably lose about 2 lbs boost in the process.

 

Yup. Never doing another fuel pump again. Two things that sucked: EVAP connector, which I really hope mine is seated, and the retaining ring. F those two right in the butthole.

 

^Yeah, that sounds about right.