Thread: Ashcroft Stage 2 4HP22, any probs?

Originally Posted by Slunnie

It'll be interesting to see if the 8HP conversions take off for those wanting to run big power and an auto.

I just like the idea of the modern 8 speed behind a TD5.

Originally Posted by Tins

I just like the idea of the modern 8 speed behind a TD5.

Totally, it would transform it. The reports are pretty positive.

Originally Posted by Kaaaiju

Slap a r380 and run 600nm plus without the common issues with the auto

Are Ashcrofts doing upgraded stuff for the R380 other than uprated bearings and the machined rear housing ?

I can't see anything on their website?

Originally Posted by shack

Are Ashcrofts doing upgraded stuff for the R380 other than uprated bearings and the machined rear housing ?

I can't see anything on their website?

no but those boxes still handle good lower, both my mates r380
are stock and pushing around 550-600nm and don’t baby it around just as long you don’t feed power in 5th

Winchcester gears make built R380 as well which alive run 700nm through it

Originally Posted by Kaaaiju

no but those boxes still handle good lower, both my mates r380
are stock and pushing around 550-600nm and don’t baby it around just as long you don’t feed power in 5th

Winchcester gears make built R380 as well which alive run 700nm through it

Do your mates run coolers? Those boxes don't carry much oil.

Originally Posted by Tins

Do your mates run coolers? Those boxes don't carry much oil.

yes we run Ashcroft r380 oil cooler

Originally Posted by discorevy

Hi

The ( much ) larger surface area of the "A" clutches are a huge benefit if you are intending to go above around 450 Nm , up to around that figure I usually just fit upgraded forward clutch packs.

Another benefit of fitting the full ZF24 is that you are future proofing the car in case you do want to run over 450Nm, reliably.

Don't forget the V8 converter and kit

You can use a rear shaft from the 4.6 V8 version ( TVB000330 ), or simply get yours shortened.

As for the front, just a 15mm spacer will be fine for a 50mm lift, such as a DA6339, though 20mm might be better.

I just finished building one yesterday, for a keeper (D2a)

Thank you for this! I think now, buy once, cry once. But i am futureproof then. :-)
The hint with the V8- rear shaft is really good, will have a look at this.

Originally Posted by Slunnie

It really wouldn't surprise me if the propshafts just take up the 15mm, the slip joints shouldn't be that marginal.


What would surprise me is if you get the extra 15mm out of the gearbox mounts.

That said, mine has had the 3/4th clutches upgraded to 4HP24 units and that doesnt make it a longer gearbox. That setup has been totally reliable with a ECU/IC/Boost and ATF cooler which is key, but I'm also not pushing the same power as what you're looking at.

I could be wrong, but I thought if you pushed big torque through an auto it just went into limp mode???

The Allisport Autocooler is already installed.