Recommended Plug - 85 T1 FWD Stage 1 ECU

[TripleJackInGA]

I just got the car, and need to get it smoothed out a bit. The car has the FWD Stage 1 ECU, and I will be adding the 803 injectors very soon. It currently has a bit of detonation at WOT at high RPM, so I'm thinking one step colder on the plugs may help.

And is the stock Champion on the car the RN9YC ?

Advice ?

[TurboBuggy]

I thought I heard the 803s flow the same as stock injectors, I would think so since fwd says you can use either and any change in injector flow requires a different fuel curve.

I would add an intercooler if I were you, even the small stock TD ones make a big difference. I would assume you are running premium gas correct?

[TripleJackInGA]

Yes, I am running 93 or 94 when I can find it, but I just filled the car up for the first time since i got it.

I do plan to do a few things to it, but I just want to get it running correctly in stock form first.

I have no idea if the 803s are the same. I know it does say that it works with either, but I haven't researched the comparison between the two to know yet.

[GLHNSLHT2]

stock is 27lb's and 803's are 30 lbs. It's the 804's that flow the same as T2 injectors which is 34lbs. But either put it on a dyno or get a wideband O2 for it to see just how much fuel you're running. My buddies suckthrough T1 with some exhaust mods and a slight increase in boost pegged the wideband on the dyno at over 10:1. Probably lost about 20hp that rich. If you're getting detonation the spark curve is too aggressive. You'll make more power with less spark to prevent detonation and the correct a/f ratio than you will with trying to kill any knock with extra fuel.