My RS will leap off the line just fine, then 10 feet later bog down to almost no RPMS, then 5 seconds later will come back to life...

Basically my car's throwing fits when it comes under load untill it's past a certain speed or RPM. This is really annoying. Could my timing be off and cause this?

 

 

And you haven't whipped out your timing light to check it because....?

 

Check the timing first, but it sounds like a fuel delivery problem. Hook up a fuel pressure gauge and see what happens when your car dies down.

 

...I'm a lazy bastard. Thats why. I'll do it tonight I just hav'nt gotten the chance yet.

I dont think it's the fuel pump, or fuel pressure related. The car runs just fine past a certain RPM... That is why I'm thinking the car's a little retarded.

 

Hihgly doubtful that it's the timing. At least the timing adjustment. That affects the cars's behavior at all RPMs.

Check it, set it to the factory spec if it's a factory spec sort of car; if it's not, experiment slightly to see where it runs the best. But your description of the car's actions doesn't sound like ignition timing. It sounds like a fuel issue.

 

Don't say that!

If it's an intermittant problem, think it could just be the relay?

I guess it doesn't matter... even if the fuel pump is bad, I'm going to carb anyway. I could just use an inline pump and just keep the factory pump in the tank and not touch it, just use it as a pickup, right?

 

Yes you can keep the fuel pump in the tank. I kept the one in the tank for my nitrous system. Just make sure that you disconnect power to the pump or remove a fuse or relay if you are not using it. Another option is to get the mallory three port fuel pressure regulator that you can hook up your present fuel pump in and return lines to. This will decrease the fuel pressure to carb levels (4-7psi). I have done this with the in-tank pump for the nitrous and ran another high flow pump from the tank for the carb. Do a TPI to carb search; there's tons of info. Also try checking the your plugs. I highly doubt the relay is a factor. Relays do not typically work intermittently. Also you may be losing voltage from the pump under certain loads where you are experiencing this surge.