Level of boost on TRD S/C

[blackbird]

I'm just curious as to what would be a safe level of boost with stock internals. I've read over at matrixowners.com that some people are running 7-9psi and of course there are others running at 10psi. I understand those who are running 10psi have replaced either stock internals or added a alky injection such as www.snowperformance.net. I'm just thinkin that 8psi would work with stock internals just fine. Any input would help. Thanks

[dontmesswithme]

8 or 9

[ahnjae]

is there a good alcohol inection kit out there?

[SickCelica696]

8 or 9 is the norm, its hard to get a super much past that anyways.

[cool2miketlu]

You have to get custom pullies made to get higher boost than that don't you? Which means you will need custom fuel map made again.

[Hetts]

8 or 9... any higher than that the supercharger creates too much heat, which causes the air to become less dense (less dense=less power) So any increase in boost doesnt increase power, just stress on the engine.

[blackbird]

You have to get custom pullies made to get higher boost than that don't you? Which means you will need custom fuel map made again.

I know about the custom pullies being made, but a fuel map? Do you mean re-tuning through the e-manage?

Thank you everyone for providing some input on this, i'll need this info later on in a few months to do my tuning. Thanks again. Does anyone know who has the smaller pulley on the S/C or who makes them?

[slvceli]

No offense man but your questions will be much better answered at matrixowners.com. They have already tried a 2.2 and 2.3" pulley without much success. Without knowing too much, I would have to think that you would not be able to buy the same pulley they are using and would have to have one custom made. Plus then you gotta get the emanage retuned and what not. You would have to be the guinea pig for all of this. I would wait until you see some decent gains from the matrix owners and figure out what they are doing right so that you dont throw all this money away for 5 hp.

Do you plan on using an intake with the sc? If you do, try and get a video up when you get this done.

[blackbird]

:werd:

Well technically you're the guinea pig lol b/c you were one of the first to do the S/C on a celica, props to you. but If i'm going to be the guinea pig for everything else ie pictures ect i'd just like some recognition and a sticky for all to view on the website.

Yes you are correct though i'd have to re-tune everything just for an extra 5 horses. yes i do plan to use CAI on the S/C however i need to get an Alky inject first so that i can cool the temp so that i don't end up ruining my Catalytic converter. My goal is not to change pullies since i want everything to be pretty much stock with the exception of a new TB and piggybackin the ECU. Of course i'm probably going to have to re-tune anyhow seeming as how i'm waiting for Easy C to produce a decent header w/ mid pipe. Once again my goal is like your Goal Jason which is to get it up and running then fine tune along the way so that it eliminates the possibility of failure right away.

[slvceli]

Of course i'm probably going to have to re-tune anyhow seeming as how i'm waiting for Easy C to produce a decent header w/ mid pipe.

:chuckles: :rofl: :laugh: ........... Or are you serious? Just get the hotshot header.

[Seven-Of-Nine]

8 or 9... any higher than that the supercharger creates too much heat, which causes the air to become less dense (less dense=less power) So any increase in boost doesnt increase power, just stress on the engine.

Sorry but I don't agree with that, there is a relationship between the max peller speed of a SC unit also the max input, as long as you don't exceed the max input youre be ok. Some superchargers have seperate oilcoolers to keep them cool, also ref the air density the faster the SC spins the more dense the air, you can of course have a intercooler inline as well as a CAI to keep the intake temperatures down.

[slvceli]

Its not really possible (aka even close to worth the money) to put an intercooler on the trd sc. The limits of the supercharger according to all the matrix owners trials seem to be completely maxed out at 9 psi. I am confident that another 10 whp could be had from going from the stock 7 psi to 9 psi provided everything is tuned and working properly. The problem with that is weighing the extra money for the tuning and pulley and extra strain.

[blackbird]

I don't think tuning is the key. I think the main key is the fact that you have to keep the S/C from not over heating under alot of pressure. if 9psi is the max then let that be the max however, with all of that said, it'd be safe to say that a comfertable yet obsolite PSI would be 8-8.5 that is of course putting strain on the S/C but not a whole heck of pressure. Would it be nice to just mount up an intercooler, why heck yes it would b/c then it'd save time on installing hoses ect to an Alky system. For me however i'm going to run stock header,stock intake, stock pulley.The only thing i have that isn't stock is my Audio system and my exhaust from TPR...... i didn't think this post i created was going to get this much of a hit... guess i was wrong. :werd: