AFPR question

[1wickedA70]

planning on upping the boost soon on my smokin twins :biglaugh:..before i do it im gonna install a fuel pressure regulator...juss would like to knw wut pressure the regulator should be at when uppin the boost from the 10psi i have now, to 15-18 psi i plan to run...i also have a walbro pump

 

[1wickedA70]

anyone??

 

[10secdream]

I would just run 40psi base fuel pressure.

 

[pnutcar]

When I ran 22psi on stock twins, I had stock fpr and stock pressure and was still 10:1...so I don't suggest you touch your setup.

When I installed my walbro and mkiv 550s I had to turn DOWN fp so I wouldn't drown out my fuel.

 

[1wickedA70]

really? did u get fuel cut?...the reason i wanted to turn it up wuz because of fuel cut

 

[supramk3man]

I like to know what you did i'm also thinking of doing the same thing.

 

[pnutcar]

really? did u get fuel cut?...the reason i wanted to turn it up wuz because of fuel cut

Sorry, I wish I could help you more, but I have a Blitz ecu, so I have all of the 'cuts' deleted already.

 

[1wickedA70]

anyone run 18 psi on a stock FPR...with a stock ecu, and injectors?

 

[supra1008]

anyone run 18 psi on a stock FPR...with a stock ecu, and injectors?

I'm pretty sure you can run 18psi on your stock setup. Instead of getting an FPR you should be getting an upgraded ECU or FCD or something. You should be fine. I have run 16psi and I was still at 10:1

 

[1wickedA70]

na dont wanna waste my time wit an upgraded ecu cuz im goin standalone soon....juss wanna have sum fun wit stock twins before i go single since there smokin...anyone else wanna chime in on this?...who else has run a stock FPR with the boost set at 18psi....i dont wanna hear about an FCD cuz fuel cut is there for a reason