Ok sorry if this is in the wrong place, but it has to do with chip burning so i put it here. Does anyone know where there is a chassis dyno with a wideband O2 in the central Indiana area that will tune my car.(Doesnt necessarily have to be close, just not 500 miles away). I put a cam and a TPIS chip in it, and it is running ridiculously rich. BLM is stuck at 108 and im afraid this much gas getting dumped into the cylinders is going to wash the oil off the walls. I dont have the time or patience to get 50 chips from TPIS burned wrong, and currently i have no chip burning experience.(i will soon though.) I need to get it tuned right before the engine eats itself up.

 

Well, cant help you there.

But, for now, turn your fuel pressure down, keep the oil changed WAY more often than normal, drive it as little as possible, and baby it when you do drive it until you get a good PROM made.

That's what I would do if I couldn't tune my own PROM.

You could also try the stock chip, it may not run as rich as long as the injectors are stock.

 

If you know enough to extract your BLM's, you should be able to datalog the BLM's at each of the load or VE points in the fuel maps. You could then supply this information to your chip burner, and in a couple of iterations, you'd have something that was close enough not to hurt your engine.

That's where I'd start from if I couldn't burn my own PROMs.

John.

 

spoke to a guy at car show. only FI car i could find that i knew was modified from stock and needed tuning as a result. the car was a beautiful 57 chev with a transplant of LT1 engine. oil was so polluted had to change it after 200 miles after transplant. that was his first chip from custom chip burner. second one was not much better and that was the one at the car show that day. car still ran poorly. you need to get BPW calculated and changed and learn to start data logging and burning chips. no way around it assuming your car is modified. too costly to do on dyno in my opinion as they get paid by hour. my 40 minutes was $100. thats $180/hour.