is the only way of adjusting fuel pressure "under boost" to change out the disk/ring set in the FMU? i hear the HRC guys mentioning turning up their under boost fuel pressure a lot.

their kit comes with an adjustable fuel pressure unit. like the sfmu you could buy.

I've never had a problem with fuel on my star kit, but you could always add an inlie pump too if your having fuelpressure probs, or just want to play it safe. But the idel pressure should be just fine

> is the only way of adjusting fuel pressure "under boost" to
>change out the disk/ring set in the FMU?

Yes..unless you buy a different fmu like speedracer said.

so the fmu that comes with the star kit is not adjustable at all or is adjustable with diff discs

I believe the STAR kit comes with the Vortech FMU. It isn't adjustable as far as static (idle fuel pressure).

The boosted fuel presure is adjustable through the usage of aclibration disks. It should come with the 12:1 disk based on the stock injectors ability to provide sufficient amounts of fuel.

exactly. Jason is correct.

hey guys i have a question about these things, cause my idle is perfect, then its rich as all hell till it hits boost, then it runs ok. does anyone have any clue why this could be hapening? it might be how i have the return lines run...like what did you guys do with the stock return line and the fmu return line. i have a 96 gs.

thanks.

mark

stock return line -> fmu

fmu return line -> tank


matt