Help me setup my OM617
Help me setup my OM617
Getandistr
07-10-2012, 06:45 PM #1So I am planning a conversion for my jeep Cherokee with an OM617. I am going to be connecting it to a SM465 and connect that to a NP231/D300 crawl box and finally 4.10 geared axles. I need help fine tuning the engine though as this is my first time working on a diesel let alone a Mercedes. I am trying to get some extra low end torque as well as maintain a relatively high mpg. I know that I'm not going to be getting the 30+ mpg that some people see since this will be a lifted vehicle but I'm hoping for at least low to mid 20's. So what would I need to do to get that low end power where the turbo spools sooner and still maintain or enhance my mpg?
Getandistr
07-11-2012, 07:53 AM #3Thanks for the help but again I am very new to all this. First mercedes engine, first diesel, first turbo, etc. I found out what a VNT is but no idea how to make / where to get one. Any help please?
Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Simpler=Better
07-11-2012, 08:49 AM #4It's not terribly hard to adapt a VNT-you just need to make an adapter plate (trace gaskets on some 1/2" or 3/4" steel and start cutting.) And adapt the oil inlet/outlet of the turbo-after that it just takes some messing with a boost controller and some vacuum lines to get it tuned properly.
Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
how about this setup?
Diesel om617engine 5cyl with twin compound turbos (primary turbo t3 50trim .61 a/r , secondary turbo t4 57trim .96 a/r)
this is (theturbodave) 300td which im going to try copying.
VNT turbo of what size would be needed for 200hp?
how about this setup?
Diesel om617engine 5cyl with twin compound turbos (primary turbo t3 50trim .61 a/r , secondary turbo t4 57trim .96 a/r)
this is (theturbodave) 300td which im going to try copying.
Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Simpler=Better
07-23-2012, 08:31 AM #10From the rumors I've heard you're going to need to modify the pump for more than 140hp / 190tq. If you want to go insanely large the Holset HE351VE is found on newer Dodge trucks
Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Simpler=Better
07-23-2012, 09:58 AM #14Make sure you're running an EGT gauge and a straight through exhaust, and be sure to report back
Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
raysorenson
07-23-2012, 11:58 AM #15Most complaints of "turbo lag" and lack of power are due to maintenance issues. Since you said you haven't worked on diesels much, I suggest you learn how to ensure your stock motor is in a good state of tune with the throttle linkage correctly adjusted before even worrying about modding.
I have checked all maintence items. everything from filters to valve adjustment and finished with linkage inspections and alda removal. and ill let yall know the outcome. from disassembling the spare pump i have it looks like there is plenty of adjustment for idle to be corrected after the dv are cut.
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