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Swapping an AP2 Transmission into an AP1

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Old 05-29-2008, 08:26 AM
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Default Swapping an AP2 Transmission into an AP1

I've been having problems with 1/2 grind, and every so often it will pop out of 4th gear. I'm at 90k miles, and also on my stock clutch.

Since I'm gonna be replacing the clutch I was thinking about getting my transmission replaced with an AP2. The AP2 transmission has 15k miles, and with labor included would cost me $1150.

Is it worth it?
Old 05-29-2008, 08:36 AM
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I have a friend that did it and he loves it. He has 4:44's as well I believe.
Old 05-29-2008, 08:38 AM
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Yes it is. You'll need to change the flange on the back of the ap2 tranny to the one on your ap1

You'll get a difference of gearing as the reduction gear in an ap2 is a bit deeper and 5th and 6th are a bit longer. It will feel like you dropped in a set of 433 diff gears but you'll keep 5th and 6th long. It's a nice combination.

plus you pick up the better synchros


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Old 05-29-2008, 09:27 AM
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, well worth it in my opinion. If I had an ap1, i would definatly do it.

-Ian
Old 05-29-2008, 09:44 AM
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Thanks for your input, guys! Looks like I'll be getting it swapped this weekend.
Old 05-29-2008, 02:23 PM
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What about the other way around? Ap1 transmission in an ap2?
Old 05-29-2008, 06:14 PM
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I got an ap2 trans for sale
Old 05-29-2008, 06:38 PM
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Originally Posted by hecash,May 29 2008, 10:45 AM
You'll be very happy with it.

I did it to my prior AP1 soon after the '04MY hit the market. A trainload of S2000 were in a train wreck, I think Kansas, and I bought an AP2 tranny with less than ten miles on it for $800, DIY installed it with a new clutch and lived happily ever after.
nice. where was i when this happened?
Old 05-29-2008, 07:57 PM
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Originally Posted by moogleii,May 29 2008, 06:23 PM
What about the other way around? Ap1 transmission in an ap2?
Probably be a bad idea. Gears 1-4 are longer in the AP1 tranny, so thatll probably knock you out of vtec.

AP2 tranny + 4.44 gears would make an awesome combo in an AP1. Woud pull like the 4.77's but would have the long 5th and 6th gear for highway cruising. Cant go wrong.
Old 05-29-2008, 08:16 PM
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ive heard good stuff about that conversion. Havent seen anyone local to me do it tho


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