Single Turbo VR4 #2

[Roy]

I converted my other VR4 to single turbo in 2009, then sold it to buy a house. I thought I was done with cars after that, but I got the itch again and ended up with another '92 VR4 with 13t's. So since I regretted having to part out the previous car I decided to re-do the single turbo build on this car.

I don't really have any goals for the car, I just want something fun to drive to work and cruise around in on the weekends. I've got a spare motor that I'm going to build this spring, then I'll see how much boost it can take.

[Roy]

This was my previous setup, I think it looks a lot cleaner this time:




A few more pics:

[Roy]

And heres a few videos of the last car, I watch these to keep the motivation up. I never ran over 16psi on the last one, but even that scared me a bit. Most of the videos are 5-10 psi.

Testing the 2-step. With the same settings I was able to build 20psi in ~2 seconds on my friends RB26 w/ a GT42R. I've got some new settings this time so it should be better.


Doing some highway tuning pulls in the previous car since I don't have a dyno in my garage:

It was probably putting out less HP than a stock VR4 at this point. Just running the timing from the AEM basemap.



I'm using the same 4" exhaust as last time, its actually really quiet:

[kywhitelightning]

Very cool!! I really enjoyed following your last build. Glad to see it taking shape again.

Jeff

[NOMIEZVR4]

yeah, same here. Really enjoy your threads, you're quite knowledgeable keep up the great work and update us on the build! The single turbo setup sounds sick!

[Roy]

Thanks. I'm hoping to get some videos at much higher boost this time.

[jbuhrman]

Are you going to go with the same style of wastegate plumbing??

I only as as I don't see it in the new set up yet,

[TT4ME]

We are missing the kitty's head in the turbo pic!!

[DocWalt]

Very nice! I wondered what happened to your old car, I didn't remember seeing anything past that 2-step testing. I can't wait to see how this build goes, looks great so far!

[Roy]

Since the ABS is gone I could dump it out the fender again. I can't believe I'm even considering this, but I might recirculate it. Those Borg Warners whine so damn loud and I love the sound, but I also love the sound of an external wastegate. I'm either going with a Synapse 50mm again or dual Tials.

Here it is:


I just woke this one up and he seemed confused as to why I set him on my car in the cold garage. He wouldn't put his head anywhere near the inlet.


This is "Greddy", he inspects all the parts before they go on the car: