Poor running? Short in Injector

[Upset99]

Today, we replaced the Spark Plug Wires and new MSD coils. Still running rough. Diagnosis. #3 injector is shorting out. So I guess, I need to go to the next step now. Replace all injectors. According to the Wiki, I need to get a a 3 bar sensor. Do I need to get anything else? I do want to upgrade the Turbo in the future. Not too radical and no major engine rebuiding. Any suggestions?

[tigerdog]

If you're not doing anything radical, I'd humbly suggest staying with the standard injectors and MAP sensor, fitting a mountain chip and enjoying the car. The stock turbo moves enough air to do nicely up to the limit of the 2 Bar sensor. IMO, the difference between .95 Bar boost and 1 Bar is not nearly so drastic as the difference between stock and .95 Bar. Search recent posts - someone recently found a NAPA cross-reference for the injectors.

[Upset99]

I would like upgrade to a another Turbo....a Garrett GT2560R, a different intercooler and a rising fuel regulator . Do I need to get a different wastegate? Is there a liquid cooled Intercooler available . I really dont want to mess with engine internals or port....just make the car more driveable. Ok...maybe some porting. :

Thanks, I found the NAPA part and it is $174. I can probably get the part cheaper but The High Performance RC injectors are $100. One of the other injectors have some corrrosion at the connector.

[tigerdog]

I didn't realize the RCs are that much cheaper than a generic replacement. In that case, I'd do the RCs. But unless you're truly planning an all-out horsepower assult, I'd stick with the stock size. The combination of 550cc injectors and 3BAR sensor does work and does handle high (1+ Bar) boost, but I don't think it runs as cleanly as the stock setup.

[Upset99]

Tomorrow I will call RC in California. I just want an upgraded car but with same basic engine. Goes back to the Law of Diminishing Returns. I dont mind spending a $2gs and getting an extra 50 hp. The next 50 hp cost an extra 10Gs. Thank you.

I would have loved to have bought Dr. Physics (sp), my fellow Texan, but it wasn't in the cards. That the was the buy of the century.

[Monty]

Chip and 2 1/4" exhaust will give you approx 200bhp

spend 2k on turbo upgrade for up to 300bhp.