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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 09-21-2007, 01:46 AM   #1
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Default Whats my next upgrade?

i am going to be ordered an intense fwi really soon
once that is done, if i have no KR what would be my next step

Recent upgrades/replacement
NGK-TR55'*
Belden Blue Wires
Replaced BCA & BCS
180* Thermostat w/ gasket
Cleaned Throttle Body
New Belts
Changed SC Oil

Just not sure what do go towards next.
I am also working on getting a high flo cat and a 40 series flowmaster
What size cat should i get? 3" or 2.5" Current exhaust is 2.5" and not changing for a long time (13'*)
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Old 09-21-2007, 01:55 AM   #2
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Next thing... obtain a scantool, if you don't have one.
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Old 09-21-2007, 01:59 AM   #3
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i can use my dads shop scan tool
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Old 09-21-2007, 02:24 AM   #4
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maybe a smaller pulley since no kr?
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Old 09-21-2007, 02:45 AM   #5
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what size should i try to go to
(i run 93 octane)
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Old 09-21-2007, 06:16 AM   #6
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if ur car is a stock 2.85 and u got 0kr u can probably drop to a 2.55 or 2.5". the 2.55" is stock on the 92-93 bonne'* and u can get the 2.5" from www.pulleyboys.com
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Old 09-21-2007, 06:31 AM   #7
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is there really any difference between the 2.55 and the 2.5? What?
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Old 09-22-2007, 08:44 AM   #8
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TTT
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Old 09-22-2007, 12:07 PM   #9
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Do the cat first, keep the resonator.

Then get a used 92/93 2.55" pulley from a member here and scan on a HOT day. You MUST scan in the worst conditions (or close to it) that you plan to drive daily with the setup. You will want an oversized idler on your SC/WP belt tensioner. (3.5")

I assume you've already had the exhaust manifolds off the car to inspect for cracks with a magniying glass, and have checked your fuel pressure with key on, ignition off, at idle, and at idle with the vac line pulled from the FPR?

And that you've read the article in Techinfo for BEFORE upgrading pulleys on a S1?
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Old 09-23-2007, 02:53 PM   #10
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what tranny upgrades are there for my tranny
shift kits? etc...
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