Mix match housing/rotors
#1
Junior Member
Thread Starter
Mix match housing/rotors
Have a 1986 na 13b that i wasnt planning on using for a while but i found a 1991 tII motor missing a housing and rotor. Would the 86 work for the 91? does it matter that its na not turbo? Can i use them with a little modification? And answers are greatly appreciated.
#2
Information Regurgitator
Short answer is no.
Yes
Not really. One could use the 86 n/a rotating assembly( E-shaft, rotors and front and rear counterweights). The rotors are different weights between S4(86-88) and S5(89-91) so they can't be mixed. Also since the 86 n/a is 9.4cr and the 89 TII is 9.0cr the stock computer may not compensate very well. So it's generally not recommended.
Yes
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Ethan13b (03-21-20)
#5
Sucker for Punishment
I disagree. I'm actually running an engine right now that has probably 20 some k on the rebuild and I'm using a n318 housing in front. As far as spark plug placement, TDC is TDC.
EDIT: I am however using two s5 rotors and also turbo. Matching your rotors is more important than anything. It's not something I would do if I had the option of having identical housings or if I had high hp goals.
EDIT: I am however using two s5 rotors and also turbo. Matching your rotors is more important than anything. It's not something I would do if I had the option of having identical housings or if I had high hp goals.
Last edited by Rotary Alkymist; 03-23-20 at 06:40 PM.
#7
I wish I was driving!
if this was an all-out, high strung motor, i’d be more concerned about using matching housings, but for a mild build, it’ll be fine.
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Mitchsch94
2nd Generation Specific (1986-1992)
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09-22-17 06:08 PM