I am about to get tuned soon and wanted some input on what the max boost that is safe to run on a s/c tC. I am concerned w/ longevity and blowing a seal. What do you guys think of 10.5lbs tuned with an emanage ult? We all know that with the trd tune 9.5lbs is safe but now it’s a matter of what is safe for the engine and s/c for years to come. Take for granted that the tune is good when replying. Thanks.

 

well like you already know the nst 9.5lb pulley is safe to run on the trd tune. and 12lb isnt recommended unless you have a way of cooling (water meth inj). so i'd stay 9.5lb and tune..as a matter of fact..thats exactly what i'm gonna do in a couple weeks . with emanage ult too. let me know how ur's goes if u do it before me

 

my belt squeaks so thats what is making me think if i should change the pulley since im going to change the belt. I have methanol injection right now - my decision is if i should get tuned w/ the 9.5lb that i have now or get a custom 10.5 made

 

ooh nice! meth inj already. i would think you're good to go then esp. if you have a good tuner. there are a couple that hav done the 12lb without problems but i guess if you dont want to go that extreme, 10.5 should be ok. NST told me that 12lb pulley is really small lol.

 

Can i get a pic of your setup with the meth injection?

 

NST said the 10lb is only a few mm's smaller then the 9.5 - I didnt ask them about the 10.5 - Its $150 for a custom size.

 

If you're using water/meth 12 is fine.

Make sure you switch your BPV though. I think you're on the Forge 007 already, right?

 

You'll be ok with 10.5 or higher. The key is the proper tune and the cooling, if you can take care of those everything else will be fine.

And are you using the Gates belt that NST recommends? Some people use a Goodyear one because it's a little harder to find the Gates. The Goodyear will slip after a while.

 

I have the bosch bpv - I think thats rated for around 10lbs. Currently I am getting a full 9lbs (it might be 9.5 ...i cant tell from the gauge) so so far its holding. We will see with the 007 - if the one I have doesnt hold ill have to get that one.

 

Yea I have the gates. I ordered it online somewhere since I couldnt find it in the store. It worked out to be $38 shipped and belts here in the store are $40+ and add tax onto that. ....it worked out cheaper to get rush shipping from online. Im hoping that the same size belt w/ a tad smaller pulley will yield less noise.

 

10lbs should be safe with a good tune.

 

Its not gonna happen now - i just received my email back from NST and the turn-around time is about a month. Too bad.

 

just curious, if the trd supercharger is a rebadged vortech v5 f-trim supercharger, it says the max psi is 20 psi. has anybody tried anything close to that with a built motor and piggy back ecu, or maybe a stand alone?

 

not yet, draxcaliber.

 

The Smallest pulley size that can currently be made for the tCs right now is 14psi. The reason being, our Extended Drive Pulley set-up and not being able to get a smaller Pulley than the 14psi pulley NST can make for you. The only plausable/logical way around this that ive heard of is increasing RPM past 6250, but you'd have to build the motor to be able to withstand those kinda of engine speeds. So far for s/c tCs IceNine still holds the record at 311whp though. Im shooting for 300whp + for my tC, so far im at 230whp, only 82whp to go till I beat the Record!!! LoL

 

what if you put on the smallest drive pulley with a larger crank pully? could you be able to increase boost past 14 psi then build it. then you could have higher boost.

 

^ that is the only way to do it when you reach higher boost levels.

 

How much of a HP difference is there between the 9.5 and the 10.5? I think anything above 12 on a daily driver is pushing it even with a tune.

 

Should be atleast 10whp - enough that that plus a tune ....will yield a gain that will be noticed.

 

What tuning systems are you guys using?