Hello everyone
I have a 87` rx-7 and i don't know anything about it.I was hoping everyone could help me out with these pic . First off its really slow,people say my car is fast when there see it but its slow,really really slow. Any ideas on how to make it faster? oh btw I got up to 110mph today,I was proud,but anyway the picture of the belt was me wondering if i need to replace it soon bc of cracks.
thanks a million rx-7 experts

p.s. could anyone give spec from the engine pic?

VROOOOOOMM!!!!!

The bad belt

the back

the whole thing(duh?)

 

Yea, that belt has seen better days. I would have replaced it yesterday.

 

Definately replace the belt yesterday. As for faster, well, it's N/A, so good luck. If you want fast you want a TII, if you can't find a TII you want a TII Engine, tranny, ECU, etc. You can make the N/A fast, but I'd much rather go F/I, I grew up on boost. To make the N/A fast you'd need true dual exhaust (lose the cats and such), porting, nitrous..maybe an electric fan, underdrive pulleys and remove the emissions crap (EGR, ACV, Air Pump (or keep the air pump to actuate the aux ports)). Also, make it lighter, strip it down, every 100 pounds is about .1 seconds on the E/T. Of course tune it up, new plugs, wires, oil, tranny oil, well, is it auto or manual? Replace the tranny oil/fluid either way, differential oil as well. Then see where you're at.

 

disconnect the air pump, he has an 87, doing full exhaust renders his 6 ports inactive so he's going to have to wire them open too

 

He doesn't have to, he can have them actuated by the Air Pump if he doesn't remove it.

 

engine specs:
displacement - 1308cc/80ci
compression - 9.4:1
bhp - 142@6500rpm
torque - 138@3500rpm

1/4 mile et: about 16.2@86.4mph
top speed: about 128mph - 132mph

 

Ya an n/a RX-7 isnt exactly fast as all hell. Well for starters is everything working right? ie injectors, 5th and 6th ports, fuel and oil filter, timing, spark plugs/plug wires, ect.

 

You got yourself a nice Sport Model there.

But the car should be pretty fast, around a 7.6 second 0-60 on that model since it is very light compaired to the GXL that does the 1/4 mile in about 16.2@86.4mph.

If it is not that fast, then you need to check the 5th/6th port operation and no matter what do a full 60K mile tune up replacing all the sparkplugs/wires, filters, belts, and fluids.

 

god job on nabbing the sport i wish i had one around here...geez

 

no, full exhaust will not render the 6th ports useless, headers alone create enough backpressure (1.2 psi i think) to open them,

do the TB mod, full exhaust, port matched intake manifold, cold air box, insulate your intake tube, e-fan, remove PS if you dont feel you need it and AC if you dont need it, remove airpump and acv (get block of plate $6 from racing beat)

that is pretty much all of the simple stuff

pm me if you want to hear all of the complicated stuff

justin

 

Engine pic..