XelderX's T25 Pro5 thread

[xelderx]

Bummer Who's/what car were you going to drive?

I had a few options that I hadn't made a final decision on yet. The sad part is that I haven't driven nearly as much this year as I did last year since I'm having to beg for rides every event I go to. There is a huge 2 day event this weekend in Virginia, but I'm not going to go now that I need to save more money.

 

[xelderx]

Got the email back from Deadbolt. Looks like around $680 for a new center section. I'll probably just pay them for the inspection and have them ship the turbo back to me. For that price I'll probably just wait and buy a new turbo this fall when I can afford it.

 

[blthlt]

lets go find the p.o.s that sold it to you i'll kick his ass for you

 

[MSP608]

I had a few options that I hadn't made a final decision on yet. The sad part is that I haven't driven nearly as much this year as I did last year since I'm having to beg for rides every event I go to. There is a huge 2 day event this weekend in Virginia, but I'm not going to go now that I need to save more money.

im having to miss out on the commonwealth games too. i had so much fun last year. oh well theres always other events...

 

[supa saiyan pr5]

does MPNick upgrade the stock turbo by replacing the center cart. with the gt28rs or is it just an upgrade to the turbine wheel???

 

[JunZ33]

XelderX, check your pms.......

 

[xelderx]

Errrr..this is driving me crazy. 2 months without the car. This was supposed to be such an easy project.

 

[xelderx]

Finally back on track

After a long wait the car is finally moving forward again. I have to give a huge thanks to my friend Mike (aka ghost) for digging up a slightly more intact MSP GT25r than the last one I got. Mike gave me the best price possible on it too. It's actually pretty cool to have an old NC turbo back in it's home state and getting used.

I just finished the hot side intercooler piping and will be working on the cold side soon. I'm waiting on a couple more mandrel bends to come in.

The list of things to be completed:

Finish cold side IC piping
Install restrictor on oil feed
Remount oil filter bracket
Install the boost gauge
Run all the vacuum lines
Find and fix all the vacuum/boost leaks

I might be able to driver her next week.

 

[khaosman]

Bad ass Justin, glad to hear you are making progress!!! (thumb)

 

[JunZ33]

Good luck!!! Im glad to see it back in progress.

 

[xelderx]

Sorry for the night time pictures. I'm waiting on 2 more boxes to come in and I should be able to take her for a little test drive. Here is the pictures of most of the work so far. Hot side piping all routed, BOV mounted, and vacuum block rigged up and ready to cause leaks I'll be chasing down later. I noticed I had a nice little oil drip out of the return bung in the oil pan. It's nothing that needs immediate attention, but I will be redoing the bung when I get to the first oil change.

 

[blthlt]

on a side note justin i raced a twin turbo vr4 today/night it was ugly.

 

[xelderx]

on a side note justin i raced a twin turbo vr4 today/night it was ugly.

I never thought those were very pretty cars either.

 

[JunZ33]

Justin, make sure you use lock washers on the bolts holding the turbo to the manifold. It will get loose slowly if you dont over time, and either crack the mani due to vibration, or break the bolts. Also do yourself a favor if you havent, and use a gasket between them both as well. It will save you hasstles man.

Here is a guy that sells the gaskets we used.

http://cgi.ebay.com/ebaymotors/T25-...020QQitemZ300134854206QQrdZ1QQsspagenameZWDVW

Looking awsome by the way. Great job!

 

[xelderx]

I've got a gasket in there and I'll see about getting some washers for the bolts. I used the OEM nuts there which are the oval style exhaust nuts. I figured they would hold good enough since the factory didn't use washers there. I'll go back and fix that.

 

[CustomMSP]

Hey,

I highly suggest that you use silicone couplers by the turbo instead of the ones you have now. Better yet, weld the pipes together if you can afford it. I had the same ones when I first built my FMIC kit and they always shrink and leak boost as the manifold gets hot. Plus, the more couplers you have in the system the greater the chance for boost leaks there is.

Good luck with everything else and let me know if you have any questions.

 

[xelderx]

I am planning to upgrade the whole piping system once I get everything worked out and operating the way I want. Until these couplers become a problem though I'm not going to worry too much about them. At this point I know exactly how to cut the piping and what lengths I need so I can redo it at my own convenience and while still driving the car while the pipes are being ordered/welded.

 

[xelderx]

Lol....so I drove it today.

1st attempt---

CEL came stayed on when the car was cranked....hmm. I could have screwed up the extension on the 2nd O2 wiring. Didn't make it out of the driveway before hot side pipe seperated...possibly forgot to tighten the clamp. Pull back in the driveway and retighten everything...worry about CEL more.

2nd attempt---

Made it several miles and actually got into boost a little. Yay! HKS SSQV is really, really, loud. I was being very gentle with the throttle at first. Using only about 1/4 throttle everything running fine. Try about 1/2 throttle and run into a bad stutter. I'm not sure what is going on with that just yet. It's either loading up with fuel really bad or something else is causing the car to cut out. I figure the ECU might still be trying to learn so I go back to using 1/4 throttle and everything is fine. I go about 1 more mile on the loop back to the garage and get a nice "poooof" sound. I figured I popped another pipe off, but after returning to the garage I had blew a hole in the coupler closest to the turbo. Those cheap Home Depot couplers won't work at all on the hot side. They get hot and get too weak to hold the boost. My friend produced a spare silicone coupler and I replaced the blown out one. At this point I was needing to leave for work so I was going to have to live with it for now.

3rd attempt---

On the way home to change clothes I blew a hole in the next cheap coupler down the way from the turbo. I had to drive it to work that way, but I have a local company that sells good couplers that I will buy tomorrow.

Right now I'm a little bummed about the CEL and the stutter, but I'm hoping it's something I goofballed when I redid the o2 wiring. Other than that the small problems are obvious and have easy solutions that I should have worked out by this weekend.

 

[khaosman]

OOooh it moves Look forward to see how she goes this weekend

 

[xelderx]

I finally drove it long enough today for the ECU to throw some codes around. I got a 2nd O2 sensor code, a Fuel Pressure regulator code, and a #3 Misfire code (probably a result of the first two causing the hesitation. I'll get the exact code #'s when I get home tomorrow morning. I completely removed the MPI tuner from the car. I couldn't confirm that it was not causing the problems I was having, but the car ran the same without it.

I'm fairly certain there is something wrong with the wiring I did to extend the 2nd O2 sensor. I'm hoping that is part of the hesitation. It feels a lot like the ECU is dumping too much extra fuel. I can't get much past 4lbs boost without the hesitation kicking in and it keeps hesitating more or less until I run out of revs. I've got some better silicone couplers coming in tomorrow and the company sells a stronger style stainless clamp for them as well. That should solve my problem with the pipes blowing off and allow me to concentrate on fixing the stumbling problem.

When she is boosting smoothly she feels great. It just sucks I can't get but about half boost right now.