we_stcoast

Hi I just got a 1990 rx7 non turbo i was wondering some good ways 2 get more power out of the engin.

SDrotary-FC

Header, intake, pullies and full exhaust

Syonyk

https://www.rx7club.com/2nd-gen-archive-72/how-make-beefy-n-need-your-recommendations-31410/

and

https://www.rx7club.com/2nd-gen-archive-72/porting-intake-manifolds-how-reactions-79511/

Come back in a few days when you've finished those.

Really, with a NA, adding power is simple. The better the engine can breathe, the more power it will make.

You also will probably want to replace the transmission & differential fluid - going with some of the nicer synthetics show a noticeable gain in wheel power due to reduced drivetrain losses. Not technically adding power to the engine, but functionally the same.

-=Russ=-

koukifc3s

iTrader: (3)

tune up

oakback

Yes, do a tune up before trying to make more power. Change all fluids, plugs, wires, check for leaks and such.

we_stcoast

I have the plugs, wires, fuel filter, k&n intake all on order i will defanatle be changing all fluids thats a given right. any thing else u guys think i might need for the tune up?

Kingofl337

New 02 sensor never hurt anyone. Bosch unit is cheap $$

SDrotary-FC

toss some redline int he tranny as well

flamin-roids

Don't focus on what will make more power first. Focus on what will make your car run better! I have a '89 GXL (very similar) and here's what I've done.
New intake
new 2.5" straight exhaust (single)
Accel 8mm wires
Royal purple synthetic motor and gear oil
Koyo aluminum radiator
(Also converted an auto to TII drivetrain but you don't have to worry about that)

we_stcoast

how dose it look with the single exhaust .... do u still have the stock bumper? also my wipers come on when ever they want ???

flamin-roids

It looks fine single. Makes more sense. I figure single is more flow seeing as how it has lees bends in the exhasut that restrict flow.

RotaryWeaponSE7EN

iTrader: (6)

the singles look good even w/ the other cutout still there.

Makenzie71

I make shorty headers...real cheap. Then progressing to the rest of the exhaust is next step. Then intake, and lightening.