HX35 Installed - Lost 6# Max Boost

HX35 Installed - Lost 6# Max Boost

11-27-2003, 09:50 AM

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KEENO

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Join Date: Jan 2000 Location: FRANKLIN, TN, USA Posts: 504

HX35 Installed - Lost 6# Max Boost

Hey First Gen Brothers......

I've been away from the forum for awhile and thought I would drop in w/ a question.

I installed a used, low mileage HX35 on the Old Girl yesterday in place of the slowly fading H1C. All went well and the installation was straight forward w/ just the compressor having to be 'clocked' for our application.

Question: I lost 6# of Max Boost w/ the installation of the HX35. I went from 32# max w/ the old H1C and only see 26# from the HX35. Does this parallel what others have noticed that have installed a HX35 on a First Gen?

I've been told by Lawrence at Diesel Dynamics that this is actually a desirable condition and that it's due to the HX35 being more efficient over the H1C. The truck has great power and more of an 'electric' feel during spool up. I'm running the 12cm3 from my H1C on the HX35 and initially thought I would see a gain in boost of 1# or 2#'s.

Any thoughts from those that have made this swap?

TIA....... Tim "KEENO" Keen

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1992 W250 5spd. Repowered 5.9 Cummins w/ Bosch P7100 Injector Pump, HX-35 Turbo w/ 12cm2, Rebuilt Dana 70 w/3.54 gears, LSD, Quad 4X4 installed NVG4500HD Trans, SBC 13" CON-O, 3 1/2" JRE modified Banks Exhaust/Walker Muffler, Pyro/Boost, BHAF, 2" SJ frt. springs, 315/75R/16 BFG, Bushwacker Flares.

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