Launch for ap1

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Oct 3, 2013 | 07:53 AM

#11

s2000maniac

Joined: Dec 2009

Posts: 4,032

Likes: 15

lets hope you got 2-3 spare diff's...

Oct 3, 2013 | 04:40 PM

#12

CKit

Former Moderator

Joined: Aug 2004

Posts: 14,729

Likes: 8

Quote:

Originally Posted by s2000Junky

The gears are fine. The carrier bearing end caps are the weakest link in the diff, it begins to flex over time from the jolt. As it flexes it pulls the ring and pinion apart and then you snap teeth and bam! The Ap2 diff is substantially more reliable over the long term I have found, it will take more abuse I assume because Honda helped correct the problem by adding thicker end caps over the ap1. Personally Ive blown up two ap1 diffs but still on my Ap2. The end cap upgrade is basically the first level 1 upgrade you can do to the diff. I haven't needed with the ap2 so far, and its got a lot of boosted miles on it. Bellow are some examples of the part modification I mentioned.

http://www.scienceofspeed.com/discon..._differential/

http://www.flatironstuning.com/p-786...l-housing.aspx

http://www.ricks2k.com/products/giftcert.php

Nope, pinion gears are still weak. Still broke one on a Comptech bearing capped diff and Marc broke an AP2 diff after tons of launching (ProSolo on A6s).

Boosted miles are nothing. It's the drag launches on stickies that they can't handle.

Oct 3, 2013 | 05:13 PM

#13

josh7owens

Registered User

Joined: Jun 2009

Posts: 4,340

Likes: 0

From: Frankfort, KY

I did 800-1000 launches on 255/40/17 street tires in my ap1 without a failure over the course of 4 years....

Oct 3, 2013 | 08:35 PM

#14

CKit

Former Moderator

Joined: Aug 2004

Posts: 14,729

Likes: 8

Which is why it's important that the OP specifies what conditions and equipment he is using.

Street tires, really not a problem. And your 800-1000 launches are probably not full launches if its the standard turn autocross start. I don't think you've been to that many ProSolos where the launch box is rubbered in concrete...