supercharger pulley - Toyota Nation Forum : Toyota Car and Truck Forums

outlwd · 05-30-2005, 12:21 AM

What are you guys using for SC pulleys. I had a hks on a previous car, but now I don't know if I should go with a blitz, cusco, or an undersized pulley.
How can an oversized pulley make more boost, and an undersized pulley do the same??? Wouldn't they be going in different directions??

New to the forum but not to the car, this is my 4th MR2

Schep

ToyotaTechGeek · 05-30-2005, 10:22 AM

well, if you can find the Blitz, then it'll probably be used. the others seem to be kind of non-existant for some reason. anyway, i'm happily using an HKS until i re-build/rebalance my rotating assembley...i'm a stickler for NOT throwing the balance of the rotating assembly off by adding a larger pulley. if you're wondering why you would use a larger pulley rather than smaller, it's because you need to look at things from the standpoint that the crank pulley will adversely affect the aspect ratio of all of the other pulleys when made larger.
BTW: unless you are going to use some sort of piggyback or full EMS, or even Grunt box, you may/will be introducing some potentially damaging engine conditions that will be un-favorable.

outlwd · 05-30-2005, 10:04 PM

Thanks Geek. I'm going to try and find a Blitz. Do you run an AFR component? Which one and how does it work if you do.

ToyotaTechGeek · 05-30-2005, 11:26 PM

np.
i am going to be installing some engine management soon. i have gotten some good afr's and graph polts and hp/tq curves at my last dyno session. i have some interesting results with the different mods that i've performed. so, in other words, i'm getting results far different from what others before me have said or found.

outlwd · 05-31-2005, 09:53 PM

What mods have you done to your motor? Different cams? Are you running the stock ecu?
I ran my last car for quite a while with an HKS pulley and no ems work at all. Never had a problem. Maybe I was lucky.

Schep

ToyotaTechGeek · 05-31-2005, 11:56 PM

well, as far as my engine, i haven't done much. nothing internal. i don't have any sick camshafts or anything like that. i am a tweaker, and with a few BPU's, i have doen quite well for myself. i guess the biggest thing i've done is the intercooler. i have a Blackstone dual pass intercooler that i've modified (for installation purposes) and i've also included a fan under the intercooler. i am running a stock ECU. i will be installing some engine management within a week or so.

***MR2Jedi*** · 06-01-2005, 12:28 AM

what is a "dual Pass" IC?