TurboCiv

Ok so i have a mini me swap with a 98 ex head, with the D16a6 block, can i use d16z6 pistons and rods on my a6 crank? has anyone ever done that? what rings should i use the z6?

MikeJ-2009

Why would you want to do that? The a6 rods/pistons are fine.

TurboCiv

just trying to lower my compression, and thought that would be a good easy and cheap way to do that. what do you think of that, i read alot of what you write, so tell me what you think....

89dxhunchback

Your compression would be the same as a D16Z6 block with a D16Y8 head.
Basiclly still around 9.5/1 compression.

If you want lower compression, use either a D16A6 block with Z6 rods/pistons and A6 head
Or
D16Z6 block with A6 head

Either way use the non-vtec head.

I use the d16Z6 block with D16B2 head ( same as A6 with crapper cam basiclly the same either way ).

I was doing a D16Z6 full motor swap and I couldn't get it to run for ---- !! I converted it to OBD1 with a harness and P-28 ecu, I replace dizzy, ECUs, and intake manifolds to try and fit it, but it never ran... I had a HMT ready to put together, so finally reallized that by swapping my old non-vtec head on would still work. I put the old non-vtec head on, removed all the OBD1 crap, and first time I cranked it, it started right up. I'm ( as far as I know ) the first person you do the "un-mini-me" as I've dubbed it...

its around 8.4/1 compression, depending on which head gasket you use.

Runs great.

TurboCiv

so by put the d16z6 pistons in, it wont change my compression it is all in the head, is that what you are saying? i want to keep the vtec...

bobski

no, he's saying that putting the Z6 pistons in an A6 block, as a combination, will act like a stock Z6 block where compression is concerned.

D16A6 block + Y8 head = ~10.3:1 compression
above + Z6 pistons = ~9.5:1 compression
D16Z6 block + Y8 head = ~9.5:1 compression

89dxhunchback

yep, right now you have like 10.3/1 compression, the Z6 pistons will only drop it into the mid 9s/1 area..

Me no likely vtec and turbo together anyway...