1.6 sohc info

[cricketol2]

cool would u think they could do a dohc or would a 1.6 miata cam work?

[nos92mx3]

No they wont work.
In a sohc engine design the cam operates both the intake and exhaust valves .
In a dohc engine design there are 2 cams, 1 for intake and 1 for exhaust.

[Limegreen mx-3]

trying to beef up the sohc its a lost cause i know..

been there did what i could N/A then i boosted it

not anywhere as fast and my other MX-3 with the BP boosted..

[cricketol2]

im not trying to have it as a racer im trying to boost the economy of it not hot rod around .. i have two of them one for racing the other for just normal driving

[cricketol2]

No they wont work.
In a sohc engine design the cam operates both the intake and exhaust valves .
In a dohc engine design there are 2 cams, 1 for intake and 1 for exhaust.

i was talking about a 1995 dohc mx3 .. sorry i did not make that clear my bad

i have a 1993 sohc
and a 1995 dohc

[Yoda]

has anyone tryed to put a Throttle Body Spacer in if so did it do anything? and if so where did u find it or did u make it?

I use a tapered T/B spacer for a years. I machine one from 20mm aluminum in the R&D shop for my old 8V 1.6 SOHC until the car was scrapped. It was actually slightly smaller in diameter that the TB. It help to smooth out air flow at part throttle because as the throttle plate tip toward the air stream it creates turbulance before the TB. The spacer helps to smooth out the air flow to go around and over the leading edge of the throttle plate rather than swirl in front of it. At WOT the spacers smaller diameter causes venture effect behind TB creating higher air velocity within the IM. The end result the better fuel economy, more power at low/ mid throttle positions. There was no loss at the top end as result were inconclusive as to if the gains were from the spacer as don't consider a change of less than +/- 1hp a change but torque was up at peak.

[cricketol2]

ok now about the pulley .. worth it or not .. and would a dohc pulley work on a sohc

thanks

[Limegreen mx-3]

price for pulley and $$ for new smaller pulley belts not worth it if u want a 1hp upgrade and yes the sohc and dohc use the same pulley

[cricketol2]

ok cool thanks for that info

so does anyone know if the sohc has OBDI or OBDII ? or something else? thanks

[Ryan]

SOHC is mainly OBDI, but if you have a late 93 (maybe early 94?) there may be some uncertainty.