First gear fuel cut

[stretchskeletor]

My car has a 6 bolt motor with a 60 trim turbo and is setup with a gm 3 bar map sensor so the bov vents externally but in first gear and first gear only the car either hits a lomiter or fuel cuts at 5000 rpm but when I shift to 2nd or higher it pulls hard all the way to 7000 what could be the problem the car does have a dsm link but I don't have a laptop to look at the settings. Thanks for any help.

 

[95whitegst]

i hope you have some sort of fuel mods and not just the big 60 trim on stock fuel system

 

[Project2G]

Do you have any fuel mods? Your profile doesn't have a mod list. You should have a 255lph fp, AFPR, and some injectors.

 

[JayRolla]

He said the car is setup with a 3 bar map sensor so im sure he has some type of fuel mods. Anyways update your profile and it will be easier to help you fix the issue.

 

[Rob10_99]

I've hit fuel cut in 1st on a B16g, add your infoz.

 

[stretchskeletor]

Yes it has a 255 LPG pump and 780cc injectors and an aermotive fpr set at 33 psi boost is set at 23 psi the car has a rial external wastegate and a rial 50mm bov and a manual boost controller. The turbo makes 10 psi at 3000 to 3500 then spools to 23 by 4500

 

[Rob10_99]

33psi line pressure for fuel is way low, bump it back up to 39.

 

[stretchskeletor]

I talked to a guy here he said 23 psi on pump gas was to much so I turned the boost down to 18 and fuel pressure to 43 psi and it fixed the first gear fuel cut and now it happens in 3rd and 4th.

 

[3DLOU]

I'ma newbee but I have heard not doing the wire mod to the fuel pump can cause problems in higher boost and rpm's also the FPR should be on stock fuel settings. Just taking a stab at it but also whats the fuel filter look like? whats your speed and rpm in those gears when it cuts? I may be wrong with this but its areas I would check