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Boosting with the twins... is250 turbo build

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Old 12-13-13, 06:33 PM
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e46m3lol
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Gville350... You're right! I just tried to run some 0-20 oil through that little diesel fuel pump and it wasn't moving anywhere. I'll be ordering a scavenger oil pump right now, hopefully it comes in by mid next week.
Old 12-13-13, 07:23 PM
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mikellucci
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Cant wait for updates!
Old 12-14-13, 12:04 AM
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this looks intriguing
Old 12-14-13, 07:07 AM
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pmanliu
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Very nice, can't wait to see the final result!

Random q - Do you have a MT or AT? In your video i noticed there was some rev matching
Old 12-14-13, 11:38 AM
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Originally Posted by pmanliu
Very nice, can't wait to see the final result! Random q - Do you have a MT or AT? In your video i noticed there was some rev matching
I have an autotragic transmission. It's probably not good for the tranny but every time I down shift I tap on the gas so that it matches the revs. It's become a habit now.
Old 12-14-13, 11:43 AM
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I picked up some oil lines, hose clamps, scavenger oil pump and rubber piping couplers this morning. I want to install the oil pump, oil tank and hoses today so that way my exhaust shop can fabricate everything and that way it'll be ready to just tighten everything up and go.

I still have to figure out how I'm going to make the oil pump turn on whenever the car turns on. I don't want to run a switch to it, I want it to turn on remotely.
Old 12-14-13, 02:16 PM
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Installed the electric oil pump and everything seems to be flowing nicely. But...The pump is so loud!
Attached Thumbnails Boosting with the twins... is250 turbo build-image-3837251728.jpg   Boosting with the twins... is250 turbo build-image-2234056704.jpg   Boosting with the twins... is250 turbo build-image-38445981.jpg  

Last edited by e46m3lol; 12-14-13 at 02:21 PM.
Old 12-14-13, 03:12 PM
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Nice can't wait to see the finish out come.
Old 12-14-13, 03:26 PM
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Found a solution to the noisy oil pump! I had initially bolted it in to the bare metal of the spare tire well and I found out that if I put some rubber between the pump and bare metal I can create a cushion so it doesn't vibrate throughout the whole car.

Gonna go drop off the turbos and intercooler at shop that will be doing the fabrication.

On a different note... I ran into a problem. The guy who i bought the turbos from gave me the wrong oil return fittings. They're not for a T3 turbo so I'll be exchanging those on monday.
Attached Thumbnails Boosting with the twins... is250 turbo build-image-2818697193.jpg  
Old 12-14-13, 07:20 PM
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Gville350
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Do you have any better specs on those turbos? I know they are a T3 with a .48 inlet; but what trim and turbine outlet? Internal WG set to 8lbs did you say?
Old 12-14-13, 07:32 PM
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Originally Posted by Gville350
Do you have any better specs on those turbos? I know they are a T3 with a .48 inlet; but what trim and turbine outlet? Internal WG set to 8lbs did you say?
These are the full specs on the turbos.
Attached Thumbnails Boosting with the twins... is250 turbo build-image-2857847566.jpg  
Old 12-15-13, 05:05 AM
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iRyan
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thisshould be a great outcome if executed well....what waste gate are you using and with which spring
Old 12-15-13, 06:52 AM
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Originally Posted by iRyan
thisshould be a great outcome if executed well....what waste gate are you using and with which spring
They're internal waste gates at 8lbs each.

Last edited by e46m3lol; 12-16-13 at 08:48 AM.
Old 12-15-13, 08:40 AM
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The good thing about those small turbos is that they'll spool crazy fast, but I think they'll run out of steam in the upper rpms. But only a dyno can tell that; and since you've got nothing to compare it too, you're the official guinea pig.
Old 12-15-13, 08:45 AM
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mikellucci
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Agreed. Those are decent little turbos. You may decide to change some things around once you're up and running but to start those look promising.

My high level advice to you around TB piping:
1. Keep the maf just a few inches further than stock distance and orientation from the TB.
2. Tuck your bov(s) beneath your passenger headlight on the TB piping.
You should never have to worry about maf/intake related CELs if you do this.

Additionally, do NOT T your bov(s) off of the stock vacuum press/evap near the TB/intake manifold. This caused erratic behavior when I did this as well as a few guys overseas in the early boosting days. Use either the stock capped barb on the IM or tap your own just after the TB.






Last edited by mikellucci; 12-15-13 at 08:53 AM.


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