dude your gonna be killing your dog. lol.

Will Wren did you ever know you are my HERO!!!

This drop will also show that the M62 rotors take above 20,000 RPMs. These Superchargers/ Rotors are bulletproof!

with that extra amount of pressure, things might start flying on you.

if only they made a diesel version of the 3800, then you could just swap the main components for that extra integrity.

nope, Jim @ Pulley Boys have them in stock! I'm going to look into getting a 2.2" Red to replace my black one..

Bill,

What are you doing about fuel injectors? That much smaller may mean a) you need mor fuel injector 2) you may be spinning it beyond efficiency meaning your spending more to spin it then your gaining. Just a few thoughts.

i was wondering the same things.. maybe its about time for an M90 to get mated up to the S1 motor

Dbeast, the two 2k'* from canada will NOT be getting any asshandage. Those are 13-second club beasts.

95naSTA, Bo saw the pulley yesterday when it came. He went into hiding.

Buickman, I'd prefer not to break my SC and launch rotors through the hood at 20,000, but we'll see.

94SLEeper, the S1 L67'* are built brutally tough on the bottom end. Only one member here that I know of ever chunked a piston, and that was from sheer ignorance. I've never seen someone break a S1 L67 rod.

Todd, My fuel trims are fine with the 2.2", and I still have headroom on the adjustable FPR. In addition, I get more fueling from the methanol content in my injection. This pulley is INTENDED for the track only. As far as spinning efficiency, that'* one of the the things on the list to test. I need to know, so I'm taking the risk. Only one other member ever ran a 2.0", and that was on a Gen2, not a Gen3. I have some testing to do before the end of July, and in the long run, it won't run on the car if the results aren't positive. It may in fact go on and off while at the track, but I have to add another idler first.

Toasty, the M90 base is too wide. It would block my injector bosses in the LIM.

You will want to monitor Injector Pulse Widths and Injector Duty Cycle (if those things are monitorable on the S1). Fuel trims are just an indication of whether the car thinks its rich or lean based on the 02 and i'm pretty sure on the S2 at least WOT locks in the last LTFT and ignores the 02 sensor.

The 92/93 PCM'* aren't that informative. 94/95 got slightly better, but not by much.

Typically the best indicators for us dinosaurs is STFT, LTFT, and KR. If I were running out of injector at the top end, I would have KR.

I have zero KR with the 2.2" pulley (smallest ever successfully run on a Gen3) with the water/methanol running (at only a 30% meth mix). This is why I decided to test further down in diameter.

I'll do some ratio comparisons later to show the comparitive pulley sizes for S1 vs. S2 based on rotation/flow. While 2" may sound really spooky to a S2 nut, it'* not really TOO far out of the realm of imagination to a S1 owner.

Oooh sweet. That red looks nice.