New rape whistle

mike diesel

I'm alright.
Sep 6, 2012
4,005
0
36
SLC, Utah
I got the truck up and running last night after installing the gt5541r in place on my old borg 98mm.

Took it for a test drive and WOW. It needs some MAF rescaling since this new intake is 6" but even with fuel limiting, It spools better than the 98mm borg did. The whistle is insane.

I still need to sand blast the pipes, paint, relocate the FICM and just clean everything up. But so far I am extremely pleased with it.





So far from the driving I did last night, the gt55 is making 35psi with 80psi total boost.

Heres a few videos.

https://youtu.be/76AUwMRYPWQ

https://youtu.be/dv3-x5EW6EE

https://youtu.be/nadPBb_FHjk

https://youtu.be/PW7NmarFi-o

And here's how it spins with a flick of the finger.

https://youtu.be/Zr2Iujj-xBo
 

chevyburnout1

Fixing it till it breaks
Aug 25, 2008
2,368
1
38
Berthoud, CO
My oh my! You know the sound is right when I had four of my buddies in the garage right now drop what they were doing and come see when they heard the noise! What exhaust housing?
 

mike diesel

I'm alright.
Sep 6, 2012
4,005
0
36
SLC, Utah
It's the 1.0ar turbine housing. I can't wait to get the maf rescaled and actually have fuel off the line. The gt55 is amazing! I crapped when I first heard it start spooling.
 

kiwilml

Member
Nov 4, 2015
454
0
16
Very nice.. I just thought I liked the sound of mine but lol

Sent from my SM-G925V
 

Chevy1925

don't know sh!t about IFS
Staff member
Oct 21, 2009
21,691
5,848
113
Phoenix Az
Man I love loud whistle. Miss it from my 475 sometimes.

Mike, where do you get the weld on v band flanges that have a groove for an o ring?
 

mike diesel

I'm alright.
Sep 6, 2012
4,005
0
36
SLC, Utah
Man I love loud whistle. Miss it from my 475 sometimes.

Mike, where do you get the weld on v band flanges that have a groove for an o ring?

S475 sounds like a stock turbo in comparison :D

I get my flanges from industrial injection. They're just down the road from me. They have a room that's like floor to ceiling with every adapter, flange, clamp or fitting you can dream of.
 

CarolinaHD

Member
Feb 8, 2011
969
6
18
NC
You're gonna need more than a whistle to keep me away :roflmao: sounds great, especially hooked up to surround sound lol