Pully question
I'm considering adding headers to my 97 and I'm wondering how small can I go with my SC pully. Can I go below a 3.4"? or will I run in to KR problems. Also, what will be the ball park estimate on HP increase from stock manifolds and stock SC pully. Thanks.
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there is no magic formula to say what will and what wont give you KR
Typically, you need rockers and the headers/PEM's before you can put on the 3.2.... I dont see a PCM listed in the Mods either.... |
Get a scantool or scangauge first. Then try a pulley or two and see what your car will tolerate.
I suggest waiting until you get a PCM. Seems the S2 really favors a PCM to get the most out of a 3.4" pulley with no KR. |
so with the mods he has, a PCM will probbaly yield no KR?
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I didn't say that.
Some cars can step to a 3.5, some to a 3.4. The only way to know is to be able to scan. |
Scanning is key!
I had a FWI, TOG headers w/ full exhaust and a Intense standard PCM on my old L67 and I stuck with a 3.4" I probably would have dropped to a 3.3" but I spun a bearing before I was able to scan. But if you do get headers I would say it would be relatively safe to go to a 3.3". Ed |
I do plan to get a PCM as well, didn't mention that, sorry. I figure I'll try a 3.4 first and see how that goes, then perhaps try a 3.3 and see how it works. I can always go back to a 3.4 if it's a problem.
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3.3? No way.
3.5 or 3.4" |
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