My AP2 has a redline of 8300.

 

I had a shop called Epic Motoring do the install.

 

you heard incorrectly. there is zero proof that the ap2 diff is any stronger than the ap1 diff.

regardless, a comptech reinforced diff is likely less prone to failure than either one.

 

As is the AP2 diff. less likely to fail. AP2 diffs have been redesigned.

 

once again, not true. I'm not sure where and how these rumors get propelled through the forums, but no one has ANY proof whatsoever. the ONLY discernable change was a slight change that allowed for a bit better oil flow.

this doesn't address the most common problem which was bearing cap flex causing the ring and pinion to seperate and ride on the edges of the teeth. however, this WAS addressed through different/softer suspension, and the ap2 delay valve.


read here for more info
https://www.s2ki.com/forums/index.php?showt...dpost&p=5701777

 

It really is better to use the trip odometer vs. a known distance to correct the error rather than trying to match speeds. First of all, it's easier. Second, how do you know that the other vehicle doesn't have some degree of error?

 

actually there was a comparison done on the comptech rienforcement compared to both the pre-04 and 04's. While the comtech was the thickest out of the three...the ap2 was much thicker then the ap1. fairly close to the comptech.

 

I'm not sure exactly what was changed or how, but the concensus has been that the AP2's diff.s are holding up better. I wouldn't say they are better than the Comptech diff. by any chance, but added flow and any other changes would make them stronger.

 

uh, read the thread. that IS the exact comparison you are talking about. and in actuality, it is thicker in some places and THINNER in other places. honda seems to have squared off the end of the end caps, yet made it thinner in the arc portion of the end cap when compared to the ap1.

 

Well that's my point. (and dont take this as directed at you because it's not. ) people just take people's word for things on this forum, and it gets propogated through the forum without anyone actually asking for proof.

next time someone says "the concensus is that the AP2 diff is stronger" ask them, "well how do you know that? where did you hear that from and what evidence did they offer to support it?". you'll probably get silence as there is no such proof.

the only time anyone has EVER taken the ap1 and ap2 diff and compared them to try to see differences, and get feedback to ascertain any noticeable changes was the exact thread I posted. to my knowledge, no one on this forum has gone any further than stratocoaster did to prove or disprove the "theory" that the ap2 diff is stronger than the ap1.


so, based upon that thread and a few others like it, the "real" concensus based upon available FACTS is this:
-the ap2 diff has a slight design change allowing for a bit better oil flow. (this does not affect the flexing bearing caps in any way)
-the ap2 diff has slightly more squared off material on a top portion of the end cap, yet is also thinner in the arc of the end cap. in other words, there is no measurable strength difference, and comparisons would be nothing more than inconclusive.
-the ap2 DOES have 2 MAJOR things that address the problem of the end cap flex, and diff failures from improper driving technique. those are the softened/modified suspension, and the clutch delay valve.


anyone who says the ap2 diff is "stronger" has nothing more than speculation with little to no info to back it up. (or in your case, they are repeating what they've heard. once again, not your fault)