92 teg turbo ls motot help

[rufio0306]

i just re laped my valves and put a new head gasket on. Idles a little rough but i have DSM 450's in it. i have a vafc (had it so im using it) and i have it set to negative 20 percent. If i think right you want it negative because these injectors put out alot more than the stock and dont want that much for what im boosting. Also have a 255 walbro pump. im aiming for 5 psi maybe even 8. Anyways it hesitates alot like its still running short on fuel. any bit of info wil help thanks... sorry bout the typo int the title

 

[dbone_vtec]

the 450s are too much for just 5 - 8 lbs

try prelude injectors - 270s with AFC set the right way

you cant just play with that, its function is to fine tune the air flow

 

[dbone_vtec]

RC 370s at most for 5 - 8 lbs

 

[rufio0306]

so you cant set the vafc low enough for these to work. would i be able to get the stock ones to work...

 

[dbone_vtec]

no you cant.

the originals might keep up on 5 lbs of boost not more

 

[rufio0306]

so these 270 injectors what year preludes were they in. from the vtec or non.

 

[dbone_vtec]

92 and up h22 vtec

 

[rufio0306]

92 and up h22 vtec

alright thanks alot. im gonna try tune it with stock ones if not ill try them, ... big help

 

[dbone_vtec]

good luck

 

[rufio0306]

good luck

Gonna Need it Believe me

 

[rufio0306]

do you need a resistor box for dsm 450's