S2000 Under The Hood S2000 Technical and Mechanical discussions.

f22c with ap1 or ap2 tranny?

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Old 02-13-2010, 09:07 AM
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Originally Posted by wadzii,Feb 13 2010, 12:52 PM
put the ap2 secondary gear in your ap1 tranny if you want the gearing advantage.
Props...brilliant

I just got finished with a trans rebuild, that would actually be quite easy. Job can be done with trans in the car.

-loosen nut on output flange
-remove tailshaft housing bolts and tailshaft housing (the tailshaft, output drive flange, and housing will all come off together)

-Remove the now exposed nut on the countershaft with a 38mm socket (LEFT HAND thread).
-using a 3-jaw puller, pull the drive gear and bearing off together, by placing the puller under the drive gear teeth. you will not harm the gear or the bearing this way, and it doesn't take much puller effort at all.

-Now tap your new AP2 drive gear on, bearing, and re-nut it.

-now for the tailshaft...remove the nut (which you loosened before) that holds the drive flange on, and remove the tailshaft. The shaft and gear are a one piece unit.

-put it back together with your AP2 tailshaft, and put it back on the trans.

-Tighten nut

This is by no means a DIY. It is however a great guide for anyone with reasonable mechanical ability.
Old 02-13-2010, 12:56 PM
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Im in the same delima...I just bought an F22c and my Ap1 engine spun a rod....

Thing is atm i have both trannys (Ap1 and Ap2) as im seeing in the for sale section either one is worth 700$ roughly

Which one should i put in there?
Old 02-16-2010, 08:20 AM
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Can anyone tell me what RPMs will be at, at ~70-75mph in a f22c with AP1 tranny (6th gear)?

That's the only thing I'm worried about...
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