hows it going? i did the ultimate tbi mods, but i did not modify the fuel pressure regulator, if i do, how am i supposed to adjust psi? take the tbi back apart to adj. the screw? or is there supposed to be an easier way to access the screw?

 

Hey welcome aboard. You are going to have to unbolt the top part of the injector pod off and flip it over. Turning thre screw in will increase the pressure and abcking it out will decrease it. There is no way to really dertermin what PSI you have set the regulator at. If is a trial and error deal. I snapped a quick pick for you to see what I mean. I had some old TBI parts laying around. The regulator in the pic is not adjustble but the arrow points to where you will put the screw to adjust.

 

so when i want to adjust it, i must remove the 8 screws and remove the top of the pod assembly?

 

Yup you got it. It is a pain but nothing more than that.

 

cool, thanks man

 

You have another option , kind of. After I made the screw to adjust the pressure, I grinded down an extra Allen wrench I had lying around into the shape of a flat screwdriver head on the long side. You can keep the TBI unit on and adjust it with the modified Allen wrench.

I did this but have yet to had a reason to bump up fuel pressure. It works OK but it's not great. Your best bet would just be to do what ShiftyCapone said, though.

 

there is one other option i have yet to try it. here you go scroll down to DM91RS thers a picture attached. ALLGOHERE

 

Turbo city makes one with an extended **** so you can turn it by hand without removal.

 

Do a search and type "ALLGOHERE" (without the " " on there) and you'll come across a HUGE thread about them. If your question wasn't answered here, it will be there. Ohh yeah, Welcome aboard!