20lbs of boost on stock charger sound right? - Competition Diesel.Com

1stgencummins17 · 08-22-2010, 05:15 PM

I put a boost gauge in my 92 this weekend I'm only hitting 20lbs of boost I have the fuel screw all the way in a Denny t fuel pin an a 366 spring. Does this sound rite to any body or it should be more?

*BluegrassDiesel* · 08-22-2010, 05:41 PM

Do you still have the stock exhaust housing on the turbo?

1stgencummins17 · 08-22-2010, 07:46 PM

Yep

JBradley500 · 08-22-2010, 07:48 PM

I might expect a little more but not much... I think mine was around 23 when i had the pump turned up with a denny t and that was it. have you checked fuel pressure psi? 20psi of boost might be right, its hard to say.

1stgencummins17 · 08-22-2010, 07:57 PM

No I haven't checked fuel pressure. I figured tht was right with ex. Housing being as big as they are on a h1c but just wanted to check an see if tht sounded rite. Wat would be a good turbo to step up to? Hx40 hybrid or like an s300

SNOOT · 08-22-2010, 08:50 PM

You may turn your throttle limit stop out a little and gain a little more.

JBradley500 · 08-22-2010, 08:59 PM

Quote:

Originally Posted by SNOOT

You may turn your throttle limit stop out a little and gain a little more.

ahh yes... good thinking. theres so many variables to how pumps are set up and thats another one.

As for turbo, id get an s300 if you can afford it. my old turbo with the 21cm exhaust housing (same as yours) would boost over 30 psi with injectors and stock lift pump. it just took a week or 2 before the needle moved but it would get up there fairly quick.

*JQmile* · 08-26-2010, 01:11 AM

Sounds about right. Boost usually goes up a lot as you go up in injector size.

jakemono · 08-27-2010, 02:01 AM

I was around 25psi with stock non intercooled injectors, ground pin, fuel screw all the way in, and a 366 spring.

08-22-2010, 05:15 PM	#1
1stgencummins17 Name: 1stgencummins17 Title: just a sled puller Status: Not Here Join Date: Jun 2008 Location: Warsaw IN Member`s Gallery Posts: 183	20lbs of boost on stock charger sound right? I put a boost gauge in my 92 this weekend I'm only hitting 20lbs of boost I have the fuel screw all the way in a Denny t fuel pin an a 366 spring. Does this sound rite to any body or it should be more?

08-22-2010, 05:41 PM	#2
BluegrassDiesel Name: BluegrassDiesel Title: UK2K! Status: Not Here Join Date: Apr 2007 Location: KENTUCKY Member`s Gallery Posts: 4,136	Do you still have the stock exhaust housing on the turbo? __________________ Josh Land Bluegrass Diesel Performance Lancaster, Ky SHOP ONLINE @ http://WWW.SHOPBLUEGRASS.COM 97 DodgePPL Limited Pro Stock "The Crippler" 09 3500 GMC CCDually 05 Silverado SS

08-22-2010, 07:48 PM	#4
JBradley500 Name: JBradley500 Title: Diesel Enthusiast Status: Not Here Join Date: Jan 2010 Member`s Gallery Posts: 222	I might expect a little more but not much... I think mine was around 23 when i had the pump turned up with a denny t and that was it. have you checked fuel pressure psi? 20psi of boost might be right, its hard to say. __________________ 92 W250- K&N Filter, Smoke Screw Adjusted, Synthetic Transmission Fluid. 340hp/662tq (8/24/12)

08-22-2010, 08:50 PM	#6
SNOOT Name: SNOOT Title: Diesel Enthusiast Status: Not Here Join Date: Sep 2006 Member`s Gallery Posts: 205	You may turn your throttle limit stop out a little and gain a little more. __________________ 1993 W350 DDP injectors, custom twins S300 62 / S400 71, Fletcher cam, O-ringed, Very big valve springs and retainers, Fluid damper, ARP studs, ATS manifold, Full billet trans best of 13.55 1/4 mile.

08-26-2010, 01:11 AM	#8
JQmile Name: JQmile Title: Comp Diesel Sponsor Status: Not Here Join Date: Nov 2006 Member`s Gallery Posts: 6,976	Sounds about right. Boost usually goes up a lot as you go up in injector size. __________________ 89 Dodge 972rwhp on the hose, still a VE!

08-22-2010, 07:46 PM	#3
1stgencummins17 Name: 1stgencummins17 Title: just a sled puller Status: Not Here Join Date: Jun 2008 Location: Warsaw IN Member`s Gallery Posts: 183	Yep

08-22-2010, 07:57 PM	#5
1stgencummins17 Name: 1stgencummins17 Title: just a sled puller Status: Not Here Join Date: Jun 2008 Location: Warsaw IN Member`s Gallery Posts: 183	No I haven't checked fuel pressure. I figured tht was right with ex. Housing being as big as they are on a h1c but just wanted to check an see if tht sounded rite. Wat would be a good turbo to step up to? Hx40 hybrid or like an s300

08-27-2010, 02:01 AM	#9
jakemono Name: jakemono Title: Too Much Time Status: Not Here Join Date: Oct 2008 Location: Boise Idaho Member`s Gallery Posts: 320	I was around 25psi with stock non intercooled injectors, ground pin, fuel screw all the way in, and a 366 spring. __________________ Jake 2005 Chevrolet Silverado 2500HD Ultimate Transmission