how much psi on stock turbo

[rob1987gn]

i have a 87 gn 63000 miles on it the only mods are fuel reg,chip,open cat and bigger pipes what should i run for pressure any help would be great thank you

 

[turbo nasty]

i have a 87 gn 63000 miles on it the only mods are fuel reg,chip,open cat and bigger pipes what should i run for pressure any help would be great thank you

Welcome and congrats on having a low mile example.
I see you are new and highly recomend you really..repeat really do your homework and learn as much as possible on the cars.

FIRST THING TO EVER DO ON A TURBO REGAL IS GET A GOOD FUEL PUMP AND HOTWIRE!!!...Ok had to yell that to get the importance across.

Adjust your fuel psi reg to your chip burners spec. If you dont have a scan tool GET ONE...

What chip do you have?

 

[bowtiy]

i was told no more than 16-18psi on pumm gas... but it really depends on what your chip was built for.. i have a red's street chip and it's for 17# boost and 42psi for a starting point on the fuel press

 

[rob1987gn]

boost

not sure what the chip is is there a way to find out

 

[turbopete]

Finding the chip

I am kinda sure Red's chip is old technology. There is new and better stuff out there, with the ability to adjust parameters in the chip.

 

[getchasum]

With a completely stock car I would not expect no more than 14-15 psi of boost with 93 octane or she'll be knocking. Witnessed it this weekend on another low mile stock car, knock after 15psi & she was rich on fuel.

Alky or 100 octane is needed to get past stock performance levels safely, 93 of today just isn't what it use to be With good gas or alky you can run 21-22 psi w/ stock turbo.....Some have run much more. (but I feel that is past the efficiency range of the turbo)


I ran a stock car (only fuel pump upgrades) to 8.10's in the 1/8 mile this past weekend on 19psi and 18 deg of timing w/ 100 octane. She has easy 7.80's maybe even a 7.70 in her & still would have been a mild safe tune but would have required couple more psi of boost & a little timing. Launch was limited to 4psi due to Nitto's drag radials. Was able to get me several 1.70's 60' times at that level.

When I say stock, it still has stock air box, 237 fp reg, turbo, dp, cat, etc

All fuel tuning was done with Eric's chip.......

 

[bison]

What octane? Has the fuel system been addressed?

 

[justcrusin']

12 to 15psi untill you figure out more details.

 

["Turbo-T"]

not sure what the chip is is there a way to find out

Pull it out, snap a pic and see if someone here can tell you.