Twin Turbo AV

MS03 2500 · Dec 8, 2015

How close are you to having it done.

shortydog · Dec 8, 2015

Very close, few minor details. Hopefully we can turn it on by the end of the week.

Aerohokie · Dec 13, 2015

The progress is awesome, when you're done could you post your parts list and sources? I'm looking at something like this too.

Old No.7 Avalanche · Dec 22, 2015

looking good.
#7

shortydog · Dec 22, 2015

shortydog · Dec 22, 2015

Tomorrow I'm hitting the salvage yards for an ecm from an 09.

MyBigToy · Dec 23, 2015

shortydog said:
Tomorrow I'm hitting the salvage yards for an ecm from an 09.

If you don't have any luck call Nelson Performance. I bought a replacement from them, programmed to my truck and calibration, for $75.

shortydog · Dec 23, 2015

I was able to find out at the 7th salvage yard I went to.

Bigtrucklover · Dec 23, 2015

shortydog said:
Tomorrow I'm hitting the salvage yards for an ecm from an 09.

I'm curious, why the need for a 2009 ECM?

shortydog · Dec 24, 2015

To be able to scale the 127 lb injectors.

MS03 2500 · Dec 24, 2015

Holy smokes, a 127 injector. :laugh:

You have to take it to the track, you and DrX.

enoniam · Dec 24, 2015

What have you done to the rest of the drivetrain to handle the increase in power?

shortydog · Dec 24, 2015

It has a 4l80 rated for 1000hp and ths diff is 14 bolt with the g80. I don't know if the g80 will hold. The aluminum driveshaft will be replaced by a steel one.

GT · Dec 24, 2015

shortydog said:
It has a 4l80 rated for 1000hp and ths diff is 14 bolt with the g80. I don't know if the g80 will hold. The aluminum driveshaft will be replaced by a steel one.

The critical speed of the heavy steel driveshaft at the required length(around 70") will limit your max RPM:
http://www.wallaceracing.com/driveshaftspeed.htm

I am running a 5" aluminum.

Wouldn't trust the G80. I am running a Truetrac, but even that is only rated for 500hp. Noticed twisted splines on 1 axle, so I pulled apart the Truetrac to check it out and everything looked good. Replaced the axle and good to go.

shortydog · Dec 24, 2015

I need to check if the 5 inch won't rub anywhere since the av is lowered. I was debating on the truetrac but seems like I'll be needing it. Thanks Drx

shortydog · Jan 6, 2016

Small pull on the dyno up to 4500 and the av made 622 hp 647 tq on 10 psi.

Randy · Jan 6, 2016

Nice...

MS03 2500 · Jan 6, 2016

X2 nicely done.

blu_fuz · Jan 6, 2016

How have I missed this thread. You have to post a video of it running at least! vroooom-pssssssh!

shortydog · Jan 15, 2016

The tuner has been having trouble tunning the av. We are thinking it's the intake it has. A no name aftermarket intake that was laying around in the shop. It will be switched to the stock intake or a holley hi ram intake.

enoniam · Jan 15, 2016

shortydog said:
The tuner has been having trouble tunning the av. We are thinking it's the intake it has. A no name aftermarket intake that was laying around in the shop. It will be switched to the stock intake or a holley hi ram intake.

Don't know about the intake but when I saw you were using 127# injectors I wondered if those would be a problem to tune ...