upgrades
 

things i'm thinking about getting:
-flex-a-lite dual electric fan (i think that's what the name of it is)
-spark plug wires
-coil?
Is this a pretty good combination of upgrades for a 91 N/A(moneys tight, student)? what kind of plug wires should i get? also should i upgrade my coil?

another question is about that baffel in the air intake tube, what is it for, does it have to be there? if not can i take a tube and bend it to fit?

i'm new to supras so any info is greatly appreciated

I don't know Supras, but I like to think I have a general gist of cars.


Fans are always nice to keep it cooler, plug wires are worth at(for performance vehicles) 50 or 60 thousand miles.

And in my other car I noticed a decent gain when I put a stronger spark into my car. So the coil prolly wont hurt. :)

cool, thanks

what about that baffel in the air intake tube? do i need it?

1) Baffle, you mean the large, round, black plastic one, over the exhaust manifold? I left mine on to help keep the heat out of the intake, since its right over the exhaust.
2) Factory Coil is very 'hot' as is.
3) For an N/A, any 'better' set of wires from a parts store will work. ($65)
4) Spark plugs..I've had good success with Autolite, & NGK. ($18)
5) More power...2.5" cat back exhaust system, ($150) and K&N air filter ($40).

The engine is just an air pump. Make it easier to get in and out. Better air cleaner does help. Make sure your compression is pretty equal and then make sure your cams are timed right on. If the belt stretches, it will effect power, usually losing low end power and gaining upper end by retarding the cams.


Get good fuel in it and get the timing as advanced as you can get and still starts smoothly. Too much timing and it will be hard to start and can run hot, so a better cooling system would be a necessity.

Definately a better exhaust system, bigger and headers. You could even block off the EGR valve if you don't have to worry about emissions, your lower end power would go up a bit from that.

Of course NOS and turbo charging would be great too. Good luck

Russ

who makes the best plug wires for the supras? and how much will it actually help a N/A

Not much unless it is missing due to plug wire breakdown.


Russ

noobie question--what actually is the EGR valve and where is it located and how do i block it off

EGR- exhaust Gas Recirculation. Basically when you let off the throttle it causes and large vacuum in the intake. At the same time the exhaust has the most of its pollutant being emitted. The EGR valve, at the rear of the intake, opens and allows exhaust gasses to run back through the intake system. It doesn't help the mixture of fuel and air at this point, so less power when you get back on the gas. I just unbolted mine and filled the hole with JB Weld and put it back on. You could make a block off plate to go there instead. You also have to pinch off the tube that runs into the intake. The emissions will go up slightly so not sure if you would pass inspection. Here in Louisiana they don't seem to be concerned about that but the change is so small that in the big picture it doesn't bother me, probably to Green Peace it does though.


Russ