5HP19/24 into small chassis?

General automotive discussion
Post Reply
Noisy Cricket
Posts: 225
Joined: Sun Mar 24, 2013 11:19 pm
Location: Cleveland, OH

5HP19/24 into small chassis?

Post by Noisy Cricket »

I am thinking that I want my syncro to be automatic. Has anyone swapped a ZF five speed into a small chassis yet?

I know Subaru automatics are silly tough but the axles would be a pain. And the driveshaft goes the wrong way and the syncro uses the rearend as a subframe locator so swapping in a Subaru diff would be problematic.
Pete, that rallycross guy

'06 Volvo S60 R (Swedish GTR)
'84 RX-7 (bridge ported, fuel injected, way modified dirt buggy)
'86 QSW (MC2 goes here. Eventually.)
'81 RX-7 (restoration project)
'73 RX-3 (poor man's Mk2 Escort)
User avatar
audifreakjim
Posts: 2142
Joined: Sun Mar 03, 2013 3:00 pm

Re: 5HP19/24 into small chassis?

Post by audifreakjim »

Um. Excuse me? Can you repeat that? I sold my perfectly good A6 4.2 just because I hated the 5hp24 so much. They are huge by the way, and far from crazy tough.
Noisy Cricket
Posts: 225
Joined: Sun Mar 24, 2013 11:19 pm
Location: Cleveland, OH

Re: 5HP19/24 into small chassis?

Post by Noisy Cricket »

I really like the way the syncro feels to drive and I love the five cylinder sound but I figure an automatic would be a cheaper swap than a hand control for the clutch, which appears to run about $4000 or so. I might be able to work with a power assisted clutch but there isn't really all that much room. Although maybe, if I ditched the vacuum brake booster in favor of Hydroboost. Which I probably should do anyway given the nature of the engine.
Pete, that rallycross guy

'06 Volvo S60 R (Swedish GTR)
'84 RX-7 (bridge ported, fuel injected, way modified dirt buggy)
'86 QSW (MC2 goes here. Eventually.)
'81 RX-7 (restoration project)
'73 RX-3 (poor man's Mk2 Escort)
User avatar
audifreakjim
Posts: 2142
Joined: Sun Mar 03, 2013 3:00 pm

Re: 5HP19/24 into small chassis?

Post by audifreakjim »

Ok, so it's a packaging issue more than anything. Makes sense now.
Noisy Cricket
Posts: 225
Joined: Sun Mar 24, 2013 11:19 pm
Location: Cleveland, OH

Re: 5HP19/24 into small chassis?

Post by Noisy Cricket »

Well, we shall see... I'm pulling a 5HP24 next week, I'll take measurements while it is out and compare to the 016.

I know the axles would be different lengths, but the driveshaft is what concerns me. Trans control should be possible with MegaShift or one of the other variants, which would be able to talk by CAN with the MS3Pro controlling the engine. Full automatic or flappy paddles.
Pete, that rallycross guy

'06 Volvo S60 R (Swedish GTR)
'84 RX-7 (bridge ported, fuel injected, way modified dirt buggy)
'86 QSW (MC2 goes here. Eventually.)
'81 RX-7 (restoration project)
'73 RX-3 (poor man's Mk2 Escort)
Post Reply