hitting fuel cut at 4500

[master jared]

i keep hitting fuel cut at 4500 i have a wally 255 550cc injectors and im running 14lbs of boost i dont have any tuning equipment or the money for it i have a 1990gst any ideas guys

 

[jrohner]

Why do you have bigger injectors & pump if you have nothing to tune with? That does you more bad than good, and it does nothing to help with fuel cut. Turn you boost down so you don't hit fuel cut. Do a boost leak test; fix any leaks to make the most of what you have.

 

[Alan11]

+1 on less boost.

Get an Aftermarket FPR.. You cant just run a 255 wally with the stock FPR.

 

[jrohner]

If he doesn't have money to get something to tune with how can he get an AFPR? I've never had one on the 5 cars I've tuned with a 255hp and never seen an issue. On 1G's I usually switch to a higher pressure regulator such as the auto one or a n/a one, which probably helps.

If your ECU is an EPROM, just get a chip burner for 85 bucks, a couple chips, and get your ECU socketed. Do a lot of reading on here, so you can make your own informed decision on what to do. Turn your boost down for now and start saving up for something to tune with. Some have had good results just putting in a 2G airflow sensor with 550cc injectors.