BIG Turbo GTI "build"

Ok most know on here that I have the APR Stage IV GTI but for those who dont, now you do! Right now its at 380 FWHP which is plenty . . . . for most but not me. Right now the engine is fully built from APR so I'm not afraid to go all out. It has on it now a tubular T25 Mani with a GT2871r, I'm bumping it up a bit to an ATP Turbo T3 mani GTX3076R with .63a/r for faster spool.

I wanted to keep all this on the cheap so I went with a T04B frame comp housing with 3" inlet and 2" outlet b/c its the same as GT2871R, could have gone bigger but then there would have been more money to spend which I didnt want to do. I just ordered the turbo so it'll be a few before it gets here, I'm hoping end of next week. I also picked up a Precision PW39 Wastegate and a 145 Bar fuel rail valve from HPFPupgrade.





So as parts come in Ill update!

Planning on selling that 2871r? PM if you are. Good luck with your new turbo, should be pretty beast.

pete RR wrote:

Planning on selling that 2871r? PM if you are. Good luck with your new turbo, should be pretty beast.

Its a trade for the tune, my buddy down here has been hounding me about it to! Haha

It should be 475-500 range, but I also have a W/M kit yet to be installed. So if/when thats hooked up, it will be over 500.

your gti is already fast as hell. this is going to get nasty. pete that 2871 wont bolt to a t3 mainifold anyway.

You are correct, for some strange reason the 2871 is a 5 bolt and a t25

Turbo arrived!




Also I thought it would be bigger for some reason? Oh well I'm not building a monster just a nice DD.

I scored a deal on a 3" DP, I got such a good deal on it b/c I have to modify it to fit the V-band instead a 4 bolt.

After that is delivered then the next thing is the small stuff, studs nuts and misc crush rings.

well it certainly isnt small...

Alright, the build is in progress, I have the turbo and manifold swapped out and the lines all plugged in. I found out the the down pipe i bought will not work in anyway, neither will the old down pipe. So it looks like it will have to be a custom job, should be fun! The 90*s will be here today so we'll get those mocked up and tacked into place. Also it will be most likely around the 450 range until I can purchase the USP LPFP from them then I can retune the ecu for a little more juice, I still have that Meth kit to be installed so we'll see!

Here is the pics I have so far;






GT2871r vs GTX3076r
Intake side



Exhaust side



Waste gate test fit to see if it clears the intake pipe



I also took a pic of the T25 manifold side that bolted to the turbo and the bolt next to it is a 15mm or 17mm to give you an idea of how tiny that thing really is!



To day's plans are to mock up the exhaust, oil change, put coolant back into it, bleed the clutch line (failed at take the trans out, LONG story) and rerout the n75 valve into the rain trey.

Also because the manifold moved the turbo over 2" all the pipes going to it will need extensions so Ill pick them up today as well. wont look pretty but it will be functional!

Ok time for an update

After installing everything and running out of time I had to leave the car there b/c the ECU wasn't tuned right. I ended up coming back up a week later and drove it home, slowly. A 11' or 12' Impala SS wanted to play so I obliged him, BARELY crawled past him, I was rather annoyed by that. Fast forward to last week friday, I get another ECU and his partner forgot to turn off the IMMO so the car was immobilized, SOB i text my tuner and he sends out his personal ECU and that gets here Monday. FINALLY she works right, I wait till its up to operating temp before I stomp on it and ERMAGERD! street bike was on the highway as I was coming on I hear him bury it so I did the same came out in front, he pulls be side me and I wasn't ready that time he takes off but his front farring ripped apart almost completely. That was the first night.

Tonight a few of my buddies are going out to do some highway pulls so we'll see how that goes, Ill post a vid up if its worth posting. BTW its ganna be loud, open dump on the waste gate doesn't sound as awesome as I was hoping it would hahaha

This thing sounds like a monster! I must see this thing at some point!

Holy snap! I have not update this in a while so here I go!

I went to the Michigan Mile event in Battle Creek and ran a 159.8 @ 34.95 sec

https://www.youtube.com/watch?v=whOmTOH4WyQ&feature=c4-overview&list=UUR0CSPihnnmAAc29EDzMBfw

Sense then I have swapped out the trans finally so now I have 2nd gear again! (went out aa few weeks back)

I also upgraded my injectors to RS4 injectors instead of S3 injectors, they flow waaaay more fuel, I also scored a Walbro modified intank LPFP for her and will be gettin a new ECU for them shortly in the mail!

Update!

Ok I've been dealing with a fueling issue and I have finally narrowed it down to injectors or tune b/c I've replaced EVERYTHING else. I sent out the injectors to be cleaned and blueprinted so Ill look at the numbers when I get them back, also anew ecu will be here today sometime.

The issue was always intermittent, some days it'd work like a champ then the next second its all boost and no go. I was gettin pissed BUT hopefully its fix, hopefully! Thats all for now.

well i hope it works out and stays good im all to use to things not working well

Injectors will be here today! I have a CIF turn in today as well (turn in all your gear from the Army) and Ill be gettin out on the Friday the 27th.

Also Ill be moving back to Muskegon on or around the 6th!

closer to my neck of the woods! lol