turbo upgrade
Logistics Pro
Joined: Feb 2011
Posts: 3,522
Likes: 11
From: Townsend, MT
Not true. Most HX40's came on 8.3 liter Cummins - another 60-ish cubic inches over the 7.3.
Lead Driver
Joined: Apr 2008
Posts: 6,938
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I assumed 40s were used on 8.3s, but ive only seen the H1E on them.
Senior User
Joined: Feb 2012
Posts: 445
Likes: 6
From: western Oregon
The HX40w is found on the 8.3 Cummins in a lot of Motor Homes in the Industry...
With power ratings of 300 to 350 Crank HP. I put a few Banks upgrades on them changing the Hot sides from T4 18cm2's to T417cm2 housings and it uses a 25psi Waste Gate assembly instead of the standard 20psi unit for quicker spool and more boost. The trade off is higher EGT's as long a you have a good Intercooler its a nice upgrade.
With power ratings of 300 to 350 Crank HP. I put a few Banks upgrades on them changing the Hot sides from T4 18cm2's to T417cm2 housings and it uses a 25psi Waste Gate assembly instead of the standard 20psi unit for quicker spool and more boost. The trade off is higher EGT's as long a you have a good Intercooler its a nice upgrade.
Lead Driver
Joined: Apr 2008
Posts: 6,938
Likes: 13
H1C = HX35 with retarded housings. In all honesty, probably a little more flow on the compressor side, but i wouldnt call it an "upgrade". Certainly not worth swapping out the garret, but if piecing together a budget kit.. wouldnt be bad.
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