What LSDs are a good replacement for the ATTS in the H22 tranny? Does anyone have a write up on this, and will the p13 ecu still work properly once the atts is removed?

 

bump

 

Throw your SH trans away, buy a EuroR trans or a base H22 trans+quaife
You don't have a P13 right now, so Im not sure where you're going with that.

 

Does EuroR trans bolt right up to the H22 block? The base H22 tranny comes out of the 4th gen lude right?

 

The euro r tranny bolts up to the h22 block,yes. 4th and 5th gens both have non atts trannys that can bolt up to the h22.

https://honda-tech.com/forums/honda-prelude-4/prelude-h-series-transmission-codes-ratios-master-list-2548441/

You can use this as reference.

 

I just finished reading a long thread on Base vs SH and the main thing that was discussed was if a base tranny was interchangable with the SH block and people say it is but it requires extra fabrication they do not bolt on exactly.

Would you say a properly running ATTS system could out performer a LSD on the track If the car is NA and power doesn't exceed 220hp

 

Yeah, you should be fine. I'd like to start messing around with an SH setup, but I think you'll see alot by putting a dedicated oil cooler on it. I think that would keep the clutches cooler and prevent burnout.

I'll also be eventually pulling one apart and taking it to the local clutch shop and see if anything can be rebuilt stronger.

But I would say throw a cooler on it and see whats up, I think it'd help alot more than the setup now thats tied into the radiator.

 

Not on its best day.
Mechanical>Electronic

My friends ATTS used to fault and shut off from repetative aggressive turning.