i was just thinking about getting a 9.5 pulley for my car. i know that it will void my warrenty but i put a new BOV and a CAI into my car. i just want to know what is the before and the after HP on the TC with a supercharger and the 9.5 pulley i have tried to search for the before and the after HP but not able to find it. if anyone can let me know i would reallly like to know before i buy one.

 

9.5 = ~20-25 hp.

 

According to NST, their 9.5psi pulley adds about 25hp to a stock setup. Check this out:

http://www.nonstoptuning.com/Project...STgarageTC.htm

 

is there a chance that the pulley will blow the engine or is it pretty safe to have on there.

 

well you say you have a CAI on there already, and if you get the NST 9.5lb s/c pulley and run it on the TRD reflash, your car will most likely be running very lean (which is a bad thing). i had a feeling adding a CAI would make it run lean which is why i put mine on the night before i went to get it tuned. my a/f was about 13.6 or so before the tune. so it pretty much confirmed it, 9.5lb pulley+CAI+TRD map = very lean a/f. my suggestion would be get the pulley and get rid of the CAI since the pulley will get you MUCH more gains then the intake.

*edit* btw, this should be in the force induction section, you'll probably get more replies that way.

 

the supercharger itself is barely safe to have on the tc since so many of them have had problems on bone stock tc's. so adding a pully is much more risky. the best thing to do is get it tuned with a piggback ecu like emanage, or unichip, whatever floats your boat. kanundrum laid down 225 whp with his superchaged tc on the stock pully and only trd exhaust. ditch the cai too, unless your going to get it tuned to prevent leaning out.

 

Wow I dident know having a intake on the supercharger would make it run lean. Is the samething true with the mmw supercharger intake. Sorry for going off topic but... :-(

 

well, the NST s/c pulley will run safely by itself. your car will lean out if you add an intake in combination with the upgraded pulley. i dont think anybody has checked the a/f for adding an intake on stock pulley.

mmw says they've tested their intake and they say it's safe to run without additional tuning.i'm not sure if they tested it on a s/c with stock pulley or not..if you ask me, i wouldnt put any intake on without tuning it, stock pulley or not.

 

yeah, they ran like 14 a/f when they dyno'ed.

i'm not saying that a less restrictive intake is bad, it makes extra power really easy. zpi made like an extra 15 whp on a stock s/c tc just by removing the lower half of the air box. so you can use your cai, but get it tunned so you don't run lean and hurt your engine...BAD!

 

wow mmw's s/c intake had an a/f of 14 on the dyno? so much for all the R&D they say they did on it so that no further tuning would be required ..sucks for those that bought it because they believed it wouldnt require tuning..

 

Does anyone know what my A/F would be with the pulley and the mmw intake. Right now i dont really wont to take it off and i dont have the money to buy a a/f gauge.

 

I say get a ecu then the pully and get it tuned soon after!!

 

I have a 9.5 pulley and full injen cai and I'm running 14:7 cruising and running about 11- 10:7 @ wot. It does lean out if you dip into to it under 3k (getting like 12:5 for a split second). 14:7 is'nt to bad cruising you don't realy make any boost with the s/c till over 4k and by then it's dumping enough fuel. The trd map's a/f deffinitly need to be cleaned up, either I plan on getting the aem piggyback as soon as it comes out.

 

so maybe its just better to get the upgrade pulley and put back on the stock intake. does a CAI really make that much of a difference

 

I got mine used so I never had the stock airbox but as for sound, it makes a big difference, it sounds like a bov when shifting. I figure if a sri gets 9 whp on the stock pulley it has to be doing that if not more.

 

yea im just trying to figure out if i should keep the CAI or not. i really like it but i dont want to do much damage to engine or my car.

 

I would go the safe way and put the stock airbox back in till you can tune and get a wideband. Unfortunitly there aren't many s/c owners running widebands to give you feed back on the sri with the stock pulley.

 

yea i know i guess im goin to put the stock airbox in and then get the upgrade pulley

 

Thanks jjos1 good info.

 

all depends user to user. even though we have the same engine, they do/can run/react different.

2 guys in my club (SE) have the TRD s/c'er, both are 5speeds, both have header, exhaust, AEM wideband, and stock 7lb pulley. one of them installed MMW intake and ran lean, then he let the other guy use it, and he ran fine.

but to be on the safe side, id take it off till you get a wideband to monitor whats going on with your engine.

and on a side note... with the s/c'er, i recommend you to get these gauges: AEM wideband a/f, oil pressure (electric), vac/boost so you can monitor what ur car is doing better.