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I would drive myself nuts trying to get the right tune. I like trying different things and see how they work. I may end up with one, at some point, who know. What wou
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haha that is the dream isn't it. I did notice yet another nice feature of the VGT, sudo traction control. the larger the vane curve the le
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Welcome To Mopar1973Man.Com LLC
We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features. Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.
Did some turbo swapping on the '96. Went from the older 8 blade HX35 to the HY35-D found on 03-04 dodges. To make the swap easy, I used a HY35 turbine housing off a 2nd gen. This turbo is a 56/58/9W instead of the HX35's 56/60/12WD.
I expected faster spooling, and possibly a less restrictive top end... I was wrong. The top end pulls a little harder and spooling is amazing, but down low just doesn't cut it.
Here are the runs:
RPM, Here you can see the HX35 took off much faster.
Pressures, Again, spool-up on the HY was noticeably slower, but the top end did well. 60psi Drive pressure all the way to 3400RPM. For anyone wondering about the funky drive pressure curve, the peak happens about 27-2900RPM, and does that on all 3 runs.
EGT's were slightly higher with the HY35, but I believe that was because the extra time the run took. Because they were actually climbing at a slower rate.
Obviously, with tuning you could get better, but for a back to back comparison, this shows it pretty well. So if you live above 1800 RPM like with an auto, this would be a good upgrade, better power up top, and spool above 2000 RPM is to die for (or from). However I miss my sub 1400 RPM boost, it was definitely much torqueir down there. So I'll play with other turbo options and see what I can get.
Edited by Cowboy