LQ4 Turbo Build Thread

**Smittro** · 07-18-2012, 02:41 AM

Great progress! Looks awesome!

I'm working on another motor myself..

**My00Z28** · 07-20-2012, 10:19 PM

Just picked up an LS6 Intake today!!!! the thing is MINT!!!!

**pajeff02** · 07-21-2012, 07:38 AM

Nice find!

**My00Z28** · 07-31-2012, 06:25 AM

Ordered a GodSpeed GT45R Turbo...
Specs:
Intake :4 inch
Outlet: 2.5 inch
Compressor trim: .70 ar
Compressor Wheel diameter: 66.71 /84.20
Turbine wheel diameter : 63.56 /73.60
Exhaust trim: 1.00ar
Turbine flange type: t4 flange
Downpipe flange type : 3.25" v band flange
Cooling type: oil cooled only

***SMWS6TA*** · 07-31-2012, 06:28 AM

**10spokess** · 08-01-2012, 02:30 AM

Nice look can't wait to hear the thing spool up

**BrownsMillsAntz** · 08-21-2012, 04:59 AM

Looks like a sweet build, cant wait to see the finished product

**My00Z28** · 09-04-2012, 05:16 PM

Got some More stuff...
Mishimoto Intercoler

And started fabbing up my hot side!

if anyone knows anyone with 80lb injectors at 3bar i am interested.
Also looking for fuel rails

**pajeff02** · 09-04-2012, 05:17 PM

New shiny stuff! Keep the pics coming, please.

**My00Z28** · 11-03-2012, 08:15 PM

Sorry for the bad updates its been rough!
One step forward two steps back! So I got the LQ4 fully put together and me and a buddy swapped it in a weekend. I spent about 30 minutes getting it to run and idle in the driveway. So me and my buddy took it for a test drive everything was good till I looked down at my gauges and and I went from 70psi of oil pressure to 10psi

so I got her back home and changed the oil and it came out silver

So the swap begins again! Pulled the LQ4 out got new head gaskets and oil pan gasket and put the heads cam and intake on the LS1 to go back into the car!

I haven't looked far into the LQ4 yet but Numbers 3,7,and 8 rod bearings are Destroyed along with the crank journal... YAY!

LQ4 Swap

LS1 OUT!

My Buddy

LQ4 Going In

Getting Ready for First Start

finishing final steps

LQ4 is back out again YAY!

LS1 back in and running!

Video^^^^

**SuperSSguy** · 11-03-2012, 11:11 PM

Looks good cant wait to hear it!!

**35th-ANV-SS** · 11-04-2012, 10:22 AM

Any idea what happened?

**My00Z28** · 11-04-2012, 12:23 PM

i didnt resize my rods after the arp bolt install and i think it egg shaped the rods...

**robs98mysticZ** · 11-04-2012, 08:10 PM

Originally Posted by My00Z28

i didnt resize my rods after the arp bolt install and i think it egg shaped the rods...

awesome thread cant wait to see it come together, just curious for my lack of internal engine knowledge what do you mean by resizing the rods for arp bolts im assuming the arp rod bolts, just curious about the resizing part and why

**My00Z28** · 11-04-2012, 08:47 PM

The arp bolts have a higher torque spec than factory bolts when they got torqued down it misshaped the rod ends and caused the clearance to be to tight in the centers and too loose on the sides. You resize them to the bolts when they are fully torqued you pretty much hone them out to have a bigger bore so till they are round again!

**My00Z28** · 11-04-2012, 08:49 PM

My stupid mistake cutting corners I guess and I paid for it. But I learned a new life lesson...

***SMWS6TA*** · 11-05-2012, 09:11 AM

Originally Posted by My00Z28

The arp bolts have a higher torque spec than factory bolts when they got torqued down it misshaped the rod ends and caused the clearance to be to tight in the centers and too loose on the sides. You resize them to the bolts when they are fully torqued you pretty much hone them out to have a bigger bore so till they are round again!

I've made some notes for my future build. Thanks for putting info like this out. Sucks that this happen.

Originally Posted by My00Z28

My stupid mistake cutting corners I guess and I paid for it. But I learned a new life lesson...

Are you able to salvage the block and other stuff? Crank gone too?

**robs98mysticZ** · 11-05-2012, 03:18 PM

ok thanks for the explanation looking forward to more progress on this build

**My00Z28** · 11-05-2012, 04:18 PM

Block is fine crank is scored pretty bad and rods are fine so that's a bonus I guess the next build for that motor will probably be a fully forged 370!

***SMWS6TA*** · 11-05-2012, 08:50 PM

Let me get this straight.

With ARP bolts for the Connecting rods I will need to have them torqued to specs, then have a machine shop "re-size" them for proper clearance correct?

I ask because I have found a place that will cryo-treat an entire engine for $450. Reading the literature and it seems this is what some NASCAR, INDY, and some other motor sport teams are doing to their engines. Gives them much more engine life and makes them much stronger.

I won't say it makes it bullet proof but will make it much better then stock.