wich turbo should I buy? - Page 2

Philip · 08-30-2008, 08:50 PM

If you want more whistle remove the cone of silence.

The map on a HX40 is 45 PSI. They don't like to be barked or over boosted.

Its fun to watch some of the 2nd gen guy's here local when I drive by. They are kind of staring wondering how come my turbop whistles more than theirs at low RPMs.

__________________
93 W350 w/duals, fuel pin turned, 6X.018" injectors, 4" exhaust, 3" air intake horn, HX40/16, auto, 307's axles' B&W flatbed,

dragrdan · 08-30-2008, 08:56 PM

I'm in the market for a turbo also(my h1c is toast). My rig is pretty close to yours with the exception of the W//M. How is the lag compared to the old turbo? What kind of boost/rpm numbers are you getting?
thanx

gear jammer 91" · 08-31-2008, 12:27 PM

Mine didn't come with the "cone of silence", I woulda pitched it already anyway. I know not to bark em' and I don't plan on runnin more than 40psi so hopefully it'll last forever, or at least until I need something bigger.

The PDR 40' spools slower than my baby H1C-16 did, but I think its really close to how it spooled with the 18, maybe a little slower. I don't have a tack so the only boost comparison I can make is that during normal acceleration when I used to see about 10psi now I'm only seein about 5psi with the same acceleration.
I'm gonna play with the timing to see If I can get it to spool a little faster. It did bring the EGT'S down about 300 degrees at WOT, I am very happy with that.

__________________
91 now intercooled W250, 1/4 from runaway, AFC lever MIA, 366 spring, BHAF, piston lp, PDR HX-40, 4"straight piped, W/M, egt, boost gauge, timed to the head, 270K+ and a getrag, KDP tabbed 402HP 865TQ on meth

gear jammer 91" · 09-01-2008, 12:11 AM

I backed the timing off, so it's only at about a 1/8" and it lights a lot better now. The egt's did come up about 100 degrees, but that only puts me at 1300' so I'm still safe and sound.

And that's with the W/M turned off.

__________________
91 now intercooled W250, 1/4 from runaway, AFC lever MIA, 366 spring, BHAF, piston lp, PDR HX-40, 4"straight piped, W/M, egt, boost gauge, timed to the head, 270K+ and a getrag, KDP tabbed 402HP 865TQ on meth

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

08-30-2008, 08:50 PM	#13 (permalink)
Philip 1ST GEN TECH ADVISOR Join Date: Nov 2007 Location: Indiana Posts: 1,126 Philip's Truck Pics	If you want more whistle remove the cone of silence. The map on a HX40 is 45 PSI. They don't like to be barked or over boosted. Its fun to watch some of the 2nd gen guy's here local when I drive by. They are kind of staring wondering how come my turbop whistles more than theirs at low RPMs. __________________ 93 W350 w/duals, fuel pin turned, 6X.018" injectors, 4" exhaust, 3" air intake horn, HX40/16, auto, 307's axles' B&W flatbed,

Remove Advertisements Sponsored Links
Dodge Cummins Diesel Forum Advertisement

08-30-2008, 08:56 PM	#14 (permalink)
dragrdan Cummins Fan Join Date: Aug 2008 Location: canton, oh Posts: 36 dragrdan's Truck Pics	I'm in the market for a turbo also(my h1c is toast). My rig is pretty close to yours with the exception of the W//M. How is the lag compared to the old turbo? What kind of boost/rpm numbers are you getting? thanx

08-31-2008, 12:27 PM	#15 (permalink)
gear jammer 91" Cummins Enthusiast Join Date: May 2007 Location: Battle Ground WA Posts: 211 gear jammer 91"'s Truck Pics	Mine didn't come with the "cone of silence", I woulda pitched it already anyway. I know not to bark em' and I don't plan on runnin more than 40psi so hopefully it'll last forever, or at least until I need something bigger. The PDR 40' spools slower than my baby H1C-16 did, but I think its really close to how it spooled with the 18, maybe a little slower. I don't have a tack so the only boost comparison I can make is that during normal acceleration when I used to see about 10psi now I'm only seein about 5psi with the same acceleration. I'm gonna play with the timing to see If I can get it to spool a little faster. It did bring the EGT'S down about 300 degrees at WOT, I am very happy with that. __________________ 91 now intercooled W250, 1/4 from runaway, AFC lever MIA, 366 spring, BHAF, piston lp, PDR HX-40, 4"straight piped, W/M, egt, boost gauge, timed to the head, 270K+ and a getrag, KDP tabbed 402HP 865TQ on meth

09-01-2008, 12:11 AM	#16 (permalink)
gear jammer 91" Cummins Enthusiast Join Date: May 2007 Location: Battle Ground WA Posts: 211 gear jammer 91"'s Truck Pics	I backed the timing off, so it's only at about a 1/8" and it lights a lot better now. The egt's did come up about 100 degrees, but that only puts me at 1300' so I'm still safe and sound. And that's with the W/M turned off. __________________ 91 now intercooled W250, 1/4 from runaway, AFC lever MIA, 366 spring, BHAF, piston lp, PDR HX-40, 4"straight piped, W/M, egt, boost gauge, timed to the head, 270K+ and a getrag, KDP tabbed 402HP 865TQ on meth