Upgrading LP Turbo - Opinions please - Ford Powerstroke Diesel Forum
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Old 04-14-2014, 05:56 PM
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Upgrading LP Turbo - Opinions please

Just finishing up the assembly of my engine into the truck and was looking at my turbos...I honestly haven't touched them since they came off, just figured they would be in good shape.
Well... LP side has a little front to back movement, 0.04" or so. Hasn't touched the housing or anything however the exhaust side looks like it spent some time in the La Brea tar pits. It is backed on thick and hard. HP side is clean, so thinking I have a bad seal.
Anyhow, I could rebuild it, but I think I will take this opportunity to upgrade. I don't have lofty HP goals, intend on running stock fuel for the foreseeable future.
What is a good size to up the LP side to and still have good street manners?
thx in advance
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Old 04-14-2014, 09:01 PM
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I loved my Elite 71mm when I had my 6.4L. There are other options available though and they'll all do well on stock fuel. If I ever find myself in another 6.4, I would be doing either Elite's 76/59 High Power Jr setup or I would go with River City Diesel's 75/59 setup. The nice thing is, you could run both of the low pressure setups from those kits with the factory VGT. Several trucks are running those low pressure turbos with great success. Don't overlook Barder Turbo either. They have a few options as well.
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Old 04-15-2014, 06:07 AM
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Awesome, thx for the feedback. I will post up with what I decide shortly
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Old 04-15-2014, 10:18 AM
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I personally will probably go with the RCD 75mm
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Old 04-15-2014, 04:58 PM
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Quote:
Originally Posted by 08stroker250 View Post
I loved my Elite 71mm when I had my 6.4L. There are other options available though and they'll all do well on stock fuel. If I ever find myself in another 6.4, I would be doing either Elite's 76/59 High Power Jr setup or I would go with River City Diesel's 75/59 setup. The nice thing is, you could run both of the low pressure setups from those kits with the factory VGT. Several trucks are running those low pressure turbos with great success. Don't overlook Barder Turbo either. They have a few options as well.
I agree with Jeff on this one. My Elite 71 treated me great and had great street manners....and it really did well when towing. On stock fuel, really anything from a 71 to 76 are great options even with the stock VGT....really just depends on your budget and goals. All of them will give you a definite improvement in powa and lower EGTs. Barder offers the most economical choices in general and everyone that has one of their turbos have been very happy with it. I am pretty sure I will be going with Barder when I upgrade my VGT. For the 75/76 size, your only choices are RCD 75 or Elite's JHP 76. Personally, based on my previous experiences, I feel more comfortable running an Elite/Precision wheel. The RCD turbo used a different turbine which they claim will keep EBPs lower, but I have never seen any data to confirm or deny that claim. 1 reviewer of JHP seemed to very meticulous noting all mods, etc. stated his JHP actually ran lower EBPs than his Elite 72 (the only difference was the atmo turbo). The only other point I would add it that theoretically, the smaller you go, the more durable it should be because the stock housing is still used...I have never seen any data to confirm or deny this either though.
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Old 04-16-2014, 06:12 AM
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^^ good info Brett. You are making me reconsider the elite 76 JHP I will also be going with barder for the 59 HP turbo
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Old 04-17-2014, 06:18 PM
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OP,

It sounds like you are wanting to stay modest on this one so here is some real world. My truck never saw a dyno, never pulled a sled, and never has seen the strip. I would have to go back and check my logs, but I put around 30k miles on my Elite 71 and about 24k were hooked to a trailer when I was hot shotting. My truck isn't optimal for heavy towing (F350 SRW with 3.73s and 35s). I typically grossed 28-32k lbs when loaded. That was in a lot of mountains (total elevation was generally less than 6k) but a lot of 4-7% grades (for miles) on the Interstate. Running a tow tune, I never had my EGTs get too warm. I rarely saw 1200 and never got above 1300. Because my EOTs would get hot, especially if I downshifted out of OD, I tried to stay in OD as much as possible which is definitely not optimal for EGT control. Bottom line, the 71 (along with my other mods) did great and I never had a problem with it. I don't have any other first hand similar size turbos to compare, but that was my experience with Elites 71. Hope that helps.
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