what fuel pump for s-trim

[slopony]

I think I might have just picked up a used powerdyne s-trim. what size fuel pump should I get. should I get a 190 lph or go for the 255 lph?

 

[LAFENATU]

First find out what blower it is.

You named 2 different superchargers. The S-trim is made by vortech, and powerdyne makes the BD11, BD11a, and the XB-1.

Get a walbro GSS340. It is a hi pressure 255lph.

 

[slopony]

its a bd11 or bd11a. not totally sure which one. do you know the difference between them?

 

[LAFENATU]

The bd11a is an updated bd11. I believe it has a kevlar belt..

All the powerdynes except the XB-1 are not designed for big power.

Usually no more than a 9 psi pulley, obviously the boost number is based on resistance.

 

[slopony]

i'm pretty sure it's the bd11a. so just do the 255 lph and be done or go with the 190 lph. I'm planning on doing heads in the future and running 9 psi then.

 

[Spd0lit]

get the 255 for forced induction apps it will let you grow in the future a little.

 

[slopony]

thanks for the input.

Get a walbro GSS340. It is a hi pressure 255lph.

found one on ebay for 94 bucks. :headbang:

 

[ProKiller]

make sure its the high pressure and not the high volume pump. the high volume is for NA.

 

[GearGambler]

i believe the gss340 is high pressure, high volume (255lph)

i think the gss306 is the high volume (255lph)

someone correct me if i'm wrong...

 

[LAFENATU]

Correct...

You want the GSS340. That is the walbro hi pressure 255lph fuel pump.

 

[slopony]

I got the gss340. it said it was high pressure hi volume