Ive poured over multiple post for a few hours. I have an 06 tc with 98k on it and been supercharged since god knows how long and still runing strong. i would like to do a few upgrades to the supercharger but im just trying to figure out if it will be worth the money in the end and still reliable. Obviously im out of warranty and i have to keep that in mind!

Mods would include:
1. Atmospheric bov (yes just for sound, i have my flame suit on lol)
2. NST 9.5 psi
3. custom intake
4. Maybe a boost and afr gauge or maybe just a scan gauge?!?!

 

You will like the 9.5psi pulley, it's where the S/C's power starts to really shine.

Despite what most posts say, there are those of us who are using an intake custom or modified CAI. It does not cause the system to run lean. If anything it helps get more air in to assist with the gross amount of fuel the ECU reflash dumps when you get above 5700rpm

BOV or BPV both are being run by people with success.

I would definatly suggest a boost gauge and an AFR if you are going to tune. You don't have to with the 9.5psi pulley... if you go to the 12psi then it's recommended.

Scan Gauge is cool but not much changes when it comes to having the S/C.
I monitor intake temperature but that is with the MAF so you don't read what your true (after s/c) air temp is. Also watching the water temp is good since you will be raising your internal engine temperature.

Mod on, drive on!

 

^^^ thank you for the all around answer....ive had bits and pieces but its good to hear from someone with experience....

Like i stated in my post, im at 100k almost and the supercharger and motor still seem to be running great. in fact i did a compression test 6 months ago and got 180ish across the board. Am i risking the bearings by adding the nst pulley or do you think that if i havnt had any problems by now, im not going to?

 

also right now with the stock pulley i barely feel a difference from the stock powerband. Does the nst pulley make a BIG difference or just a little extra pep? oh and im not planning on tuning it. i didnt see a need for it, im not looking to extract every bit of hp but just have a decent increase that's noticeable!

 

huge difference. Night and day.

 

As a general rule of longevity, because TRD went limp on getting a proper setup, doing a bearing upgrade is advised. More importantly if you start shrinking the pulley size and increasing the drive shaft speed.

I did notice only a slight power gain with the initial install but since we are at a mile high I expected boost loss. With the 9.5psi pulley I was getting 7.7psi on the dyno.

The BOV/BPV made a noticeable difference. The stock one is just such a POS at holding boost properly.

 

definately get a Wideband o2. not to be confused with a narrowband. this way you can monitor your mixture, and decide if you need further tuning. scan gauge isnt a bad idea also. great for watching fuel trims.

definatey get an intake. gotta cool down those charge temps as much as possible. 9.5 psi @ 200F is totally different than 9.5 psi @ 100F by volume and o2 density.

and hell yea get a BOV.

 

Hoping to hit 210whp with those upgrades, is that possible? BTW i also have a megan mid-pipe and a tanabe concept G. Im trying to call the original owner to see if he had the supercharger replaced/upgraded under warranty. From what i hear, the 07 or 08+ models haven't had any issues and same with the upgrade the trd issued! If thats the case then i wont worry about upgrading the bearings, i do not want to spend 300 on that right now!

 

Before any upgrades check your compression, if your rings are gone you will get more from re-ringing it than any upgrade.


AFR yes!
9.5 pulley yes!
I love my scan gauge just because I can keep a close eye on the engine behavior but no HP gains there.

I will add one, ptuning front motor mount. I was amazed how much more sporty the car feels with it, you aren't faster but you sure as hell feel faster.

Custom intake.... be careful on two points:
1. Do not change the MAF throat size unless you are tuning it, you run the danger of hurting your engine by going lean.
2. Just because you slap a cone filter on it doesn't mean anything is better. I used to run the weapon r intake and it actually ran 10 degrees HOTTER on average for me. If you had an 07+ I would say keep the TRD box and put a K&N in it but you still are using the stock box with the 06.

Defiantly possible to hit 210, I hit 230 with the 9.5 tuned and a blown ring.

 

i have a 9.5 nst pulley, pm me if you want it.

 

I'm on my phone so I can't quote anything...I did a compression check six months ago but it can't hurt to do another! Thank you for the heads up on the maf throat size, I didn't think about that but I'll measure it before I do anything...again my biggest concerns are the longevity of the bearings and the motor...am I really taking a big chance with those two things by upgrading the pulley... Gamma how much btw?

 

$75 shipped

 

You should replace the bearrings, IMO its something you should do every 30-50k miles.

 

doesnt it cost like 2-300 to replace bearing? i would have to replace mine like every year and a half! my oem bearings still have not gone at 100k miles!

 

Gammatnt ill pm you in the next couple of days, i think the wifey might try to get me the pulley for xmas so i might send her your way! hopefully!

 

Yea problem is once they go you run the chance of metal getting into your engine and I will guarantee you have metal wear going on with the pulley side since it has that many miles on it. Just my recommendation for piece of mind.

 

If your going to get a smaller pulley, you need to change the bearings. They are not going to last nearly as long considering the rpms on the supercharger will increase. Mind as well spend the money now to do it right rather than having to replace lots of other things.

 

if i get this bov setup what do i do with the hole going into the intake manifold of supercharger from the stock bpv. im talking about the straight tube. do i just plug the hole?

 

heres a better pic

 

more hp or reliable, pick 1. get pulley, and water + methanol injection.