Mazda Rotary Club

General => General Technical => Anything Engine/Performance/Tuning related => Topic started by: Drag Emperior on March 03, 2004, 11:47:46 PM

Title: Will RX8 engine fit RX7
Post by: Drag Emperior on March 03, 2004, 11:47:46 PM
Hi

Just recieved my RX7 type R from japan and was seeing how it compared to my last car on the 1/4 mile and she gave up half way ok now I realise the storys r true f**k!!!!! Anyway I was offered an RX8 engine and 6 speed box is this a straight exchange or is there some mods required

Cheers
Title: Will RX8 engine fit RX7
Post by: Glenn Butcher on March 04, 2004, 12:21:25 AM
G11ary has an RX-8 engine in his car, don\'t think he has an RX-8 gearbox though. Carl did the engine - I believe it is a 4port? not 6port.

Bit of fiddling but it can be done.

Will you turbo it?  just to note the rotors are higher compression - not the best for big boost unless you know what you are doing :)
Title: Will RX8 engine fit RX7
Post by: g11ary on March 04, 2004, 12:33:06 AM
The engines not in yet, still playing with the old engine, but yes the engine will go in, but will need a small amount of modification and obviously custom manifolds etc. If you want a turbo, then would suggest 4 port not 6 port, dont ask why, its what Ive been told by the guys un the know. Did explian it once, but to thick to remember. Gear box is not a straight swap and if I remember correctly would need modifying and would probably sit back approx 10cm, which would also mean shortening the prop.
Title: Will RX8 engine fit RX7
Post by: 20B_boy on March 04, 2004, 12:44:55 AM
QuoteOriginally posted by g11ary
If you want a turbo, then would suggest 4 port not 6 port, dont ask why, its what Ive been told by the guys un the know.
Why d\'you think GB bought himself an Auto, eh? ;)
Title: Will RX8 engine fit RX7
Post by: Glenn Butcher on March 04, 2004, 01:13:15 AM
:evillaugh