12-02-2006, 12:43 PM
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Hybrid Booster
Join Date: Sep 2004
Location: Alberta Canada
My Ride: 89 voyager van
Engine: hybrid dohc 16v 2.5l
Induct: Turbo
1/4: 0.000
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Well done!
It's a great project,more should try it as it's very rewarding when you get them running and tuned.
Just a couple small suggestions,though you may have already thought about,while the engine is still out etc.
I personaly would weld a spare fitting into the oil pan,just incase you find the oil return T with the turbo to be restrictive.The oil flowing out from the turbo is pretty whipped up,and dosen't like any restriction to flow.It dosen't take too much for backed up oil to find it's way into the turbine housing past the little seal ring,causing a nice smoke show..even on a rebuilt turbo.I have been there a few times lol,makes you think your project went wrong lol!
Also,I ran a stock dodge .48 turbine with a ford .60 compressor,on my 2.5 hybrid,and I found it impossible to control boost,and using the stock smec,overboost cut out was very hard to avoid.The van also fell on it's face when reved,due to the small turbine etc.I built my manifold with both dodge and standard t3 flange bolt pattern's,and swaped the little turbo out for a holset hy35.Night and day difference,and this swap really made the project come alive! The holset wastegate still had to be opened up a little to control boost properly,but easy done before instalation.You could probably sell your rebuilt stock turbo for similar money to a holset in great shape off ebay...and they have no water lines to deal with,and huge shaft and bearings compared to the stock dodge.I also get a lot better gas mileage with this bigger turbo,and boost response is not much slower,15-18 psi by 3300rpm.
Oh,and we need a picture please!!!
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