ls 4.8 twin turbo build

[87buickracer]

Great build thread. Can't wait to see the finished product.

Me too...
currently modifying the valve body ..drilling new single plate ,installing accumulator delete plate..
have to get new wire harness and solenoids...will post pictures soon..

 

[87buickracer]

Almost finish transmission.have to clean valve body and a few parts..few pictures

 

[87buickracer]

4l80e is done...
just need to pick up a few shift solenoids
and a deep pan after installed

 

[87buickracer]

picked up t4 90 flanges and ls1 turbo headers...hope to get some stainless works one day...hahaha
will brace the headers to keep them from cracking
looking at twin 61 or 66mm turbos
and ordering 9 inch converter soon

 

[87buickracer]

Picked up two 66mm p-trim turbos with 68 ar exhaust housing from same as on3 performance seller

 

[87buickracer]

No play in turbo shaft and spins freely..
The quality looks good for the price..
I followed a few builds with these turbos and decided to give them a try..These will be for the track..may get another set for the street..

 

[87buickracer]

Finally put on shift solenoids .
Will pick up deep pan before installing
transmission..

 

[87buickracer]

checking the turbo position..gonna put the down pipes in front of front tire under fender

 

[87buickracer]

Home made Lsx oil pump priming kit
Courtesy home depot and harbor freight

 

[bigmandengo]

Nice build.

I've been using this technique to prime the oil pump. Easiest way ive seen.

 

[87buickracer]

Nice build.

I've been using this technique to prime the oil pump. Easiest way ive seen.

yes I have seen this on youtube...
This would be ok on a running motor but on a new build you want to prime complete engine ,especially lifters , crank journals and cam bearings

 

[87buickracer]

This pump runs with your drill
Hook up hoses with one to oil
Filter housing and the other
Hose in oil can and prime away
You can also hook up to oil pump
Plug on front side of engine

 

[87buickracer]

 

[87buickracer]

 

[bigmandengo]

That's easy enough. Cool.

Sent from my E6782 using Tapatalk

 

[87buickracer]

View attachment 306446

use jb weld silicone on the hose fitting ,slide it on and tighten it down..
also wedged a short tie strap inside to help lock it in place..

 

[87buickracer]

oil adapter plate and distribution block for turbos and oil pressure gauge

 

[87buickracer]

Ordering exhaust pipes
Exhaust will exit under fender
Before front tires

 

[Chuck Leeper]

Ordering exhaust pipes
Exhaust will exit under fender
Before front tiresView attachment 308123

Where are the air cleaners going to mount/be fed from? Hi beam h/l's going away?
From the description of the down pipe location, are the w/g's going to open air, too?

 

[87buickracer]

Where are the air cleaners going to mount/be fed from? Hi beam h/l's going away?
From the description of the down pipe location, are the w/g's going to open air, too?

Going to put longer 90 bend so the turbos will sit behind the head lights like the yellow banana and run the air filters the same..
The down pipes will curve down and exit in front of front tires ..
maybe later run dual exhaust, but for now they will dump out the front fenders
waste gate pipes will be routed to down pipes after they are in place and
also may move to 90 bends..my fabricator is super busy so I'm collecting
parts until he has a spot in the shop for me..