Anyone know if its possible to slap on the ACD from the JDM E8 on the USDM?

 

Do a search: No

 

..................... Some of us have lots of work to do /me Evolved Member /you not thanks for the intelligent reply though

 

Actually there was talk about how RMR had done it on a US evo 8 using JDM parts. IIRC, the post stated that it would cost about 6 grand including parts and labor. With $ anything is possible...

 

actually. RMR's EVO is an EVO 7 with all the goodies but they put all of the EVO 8 body parts on it.

 

I think its been pretty much proven that if u had a choice, u'd rather get the super AYC then the ACD..... if u could onli choose one (DUh!)

Motor reviews have attributed the phenomenal grip of the evo euro/jdm spec due to the super ayc system on the track. And little ole me tends to agree with them...

 

Ty for the real responses folks. They are much appreciated. Its not traction I'm so much concerned with as proper power transfer from front to rear. I will quite enjoy spinning the ol tires pitching out.

 

You CAN do that with the stock set-up but to make it really easy get a big rear bar, remove the toe-in and some of the camber in the rear. Add a little toe-out on the front and as much camber(-) as you can get. Finally add some hp (don't give up response to get it though!). You know have a drifting monster (and with a sway bar adjust an autocross/road course ripper). All without having to put on those unpredictable unreliable damn expensive electronics!

 

To install the Active Center Differential in the US evo, one would ideally have to have a wrecked Evo 7 RS (no ayc).

You would have to change the US8's ecu (jdm ecu has pins for the acd/ayc computer).

* install wiring harnesses.
* install acd/ayc cpu.
* install hydraulic plumbing including very expensive pump assembly.

In short the answer is yes... but you would spend and insane amount of time and money for little real benefit. Stick with your viscous diff.

 

As you know in the 7 & 8 GSR/RS2, the systems are linked / part of the same system. Same ecu, same hydraulic pump, same sensors. ACD yields better steering response and traction in the corners... the AYC component helps with corning limits... one should always consider the ct9a active driveline as a complete system. To me the system works to seamlessly extend the handling limits and response over my all-viscous 6rs. I would have to drive the US evo in anger to be absolutely sure of the % subjective improvement.

Hint : to get some more oversteer on Tarmac, set the system to gravel

 

Interesting.

 

Its a whole different ball game....

That hydraulic pump alone is a little more than a £1000 if you can find it....

 

In case anyone wondered what the mechanicals look like....

US Tranny & VCU :

 

JDM / UK tranny and ACD :

1. 4th gear
2. 3rd - 4th synchronizer
3. 3rd gear
4. Transmission case
5. Clutch housing
6. Clutch release bearing retainer
7. Input shaft
8. Output shaft
9. Front differential
10. Clutch housing
11. Transfer cover
12. Piston
13. Transfer hydraulic case
14. Hypoid pinion
15. Center differential
16. 1st gear
17. 1st - 2nd synchronizer
18. 2nd gear
19. 5th gear
20. 5th - reverse synchronizer
21. Reverse gear
22. Reverse idler gear

 

This is the actual unit..... as far as i know its only available as a spare part in Japan, even the UK guys have HELL trying to source one....