So i have a 90 GT that has a trick flow upper and lower intake, 70mm throttle body, cold air intake, trick flow underdrive pulleys, headers, custom side exhaust with h-pipe. I just got a bbk adjustable fuel pressure regulator and was wondering if i should go with a 155 or 190 fuel pump. And also should i get a 76mm mass air calibrated for the stock injectors? I am running the stock 19#injectors. Or should i do bigger injectors and the mass air? Also what should i run for fuel pressure once i put in the fuel regulator and fuel pump. Any help would be greatly appreciated!!!

 

255 lph pump. Do it right the first time. dont get a C&L maf, get a stock SN-95 maf (94-95) and you do not need larger injectors yet. Not until head and cam swap.

fuel pressure should be run at 39PSI

 

Sounds good! thanks for the info!

 

I would suggest either 110 or 155lph fuel pump for what you have, along with a 73 or 76mm mass air flow sensor. If you plan to upgrade your heads, I'd go to the bigger sizes, and if not, stay with the smaller sizes. You'd need 24# injectors with better heads. You shouldn't' need the adjustable fuel regulator, but 39psi or thereabouts is where it belongs.

 

I'd also recomend the 255LPH. You'll just be changing out the smaller pump down the line when you have the money for the big power mods.

 

So, you are suggesting he gets a $100+ maf that is probably a mis calibrated piece of **** (C&L 73mm and 76mm) over grabbing an SN-95 70mm maf for about $15, which is basically a direct replacement for his stock 55mm maf

 

Just curious, but where would you get the $15 dollar 70MM MAF from? I'm in the market for one of those.

 

your car came stock with it...


duh

 

Oh boy...... It's the 15$ dollar part you brought up that i'm talking about??? What part store sells them that cheap??? I bought this car used with many small issues. One of those issues is a faulty MAF.

 

For what he has, a 70, 73, or 76, would all work great. I don't really care which brand name, or from where. I personally ran a C&L 73mm for over a decade on a car with 300 rwhp, and it never gave me a problem. When I changed to 24# injectors along the way, I changed out the flow tube for $30, and it always worked perfect.