hey everyone im putting together a turbo kit and need some help ... its going to be as follows
lq4 stock bottem end
tsp228r 112 lsa
arp head studs
arp rod bolts
ls6 intake

im looking at the huron speed kit with the 44mm waste gate and 50mm bov ... im also looking at the dual 255 kit they have for the stock fuel lines ...as for the turbo i was thinking the on3 76mm .96 ar ... i plan on 12psi and im caught between 60 and 80lb injectors and i need help with the oil lines as i have no idea what will work on that turbo or where to hook them up links to parts would be greatly appreciated ...also will my stock fans work and any input would be awesome this is my first turbo kit ...gotta say im pretty excited lol but i want to do it right but for a reasonable amount of money im trying to keep it under 7-8k ...
i can get the motor for 1200 with 110 k on it
turbo kit and fuel pump 3200 ...
the turbo for 320 ..
injectors 300
clutch 450
tune 600
gaskets and misc 500
arp studs and rod bolts 300

i just need the lines and if im forgetting anything else ...thank you very much for taking the time to read and help please forgive any annoying things i do because i dont do forums lol

 

Do the 80's for room to grow. Oil lines are typically -4 for feed from the blockoff above the oil filter or an adapter where the oil pressure sending unit is. The drain is typically -10 hose from an adapter block on the turbo to a fitting tapped or welded into the oil pan or front cover.

Btw, Id choose a bigger turbo..

 

do you know where i could get the fittings for the turbo and lines and such .... what turbo would you recommend my goal is 600 - 650 rwhp its just gonna be a street car until i get the money to get forged internals , suspension , rear etc.

 

Let me know if you have any questions or need any recommendations! The On3 76mm is a bit small for the 6.0l being as it only has a 65mm turbine. I would really look into the new Turbonetics 7875. Much larger turbine and overall much higher quality unit with a far greater hp potential! A little more money but it is WELL worth it as you won't run into backpressure issues, you will have room to grow, you get a high quality ball bearing turbo, and most importantly you get a 1-year hassle-free warranty on it!

Looking forward to getting you set-up, you will be VERY pleased!


Jon

 

No need for a 78mm compressor to make what he wants to make. The 76would do just fine.

 

Very similar setup to what I am running. I would def. go with the 80's as I wish I did for kill mode.

 

True, but for no price difference the 78mm will give a little room to grow. In any event I was more of less suggesting he would be much better off with something with the larger turbine wheel on the 6.0l 7675 or 7875

 

Yea i get ya. Even the 75 turbine of that turbo is small fo my tastes.

 

sounds good ... i plan on upping the boost when i get forged internals anyways ...do you think 12 - 14 psi will be safe ..ill be driving this thing alot ... im gonna get frost to tune it since i live right outside of richmond ...thanks for all the advice

 

You are pushing it on 12-14 psi, but a good tune and having enough fuel is the key!

 

If ur looking for a good reliable turbo.
I got a new never been used .96 a/r tc78 675$ shipped

 

Itll be a month or so before I start buying stuff since I'm using tax return to do the build but if its still around id be interested

 

FWIW I made 606/570 to the tires through a 4L80e with converter unlocked at 14lbs on the on3. This was on E85 with a conservative tune. My LQ4 is on the stock bottom end as well.

Good luck with the build!

 

how much fun is it man? im debating on getting a ws6 or doing the build on my z28 ... i dont mean to be all over the place my mind just starts going a million mph when i start thinking about the stuff ...

 

It's a lot of fun. I am glad I went the turbo route for sure. I am only pulling my motor to 6k since the power drops off a little after 5500, and I want to keep it alive. I am going with a Turbonetics 7875 this spring already though, ha. Shooting for 700+ rwhp.

 

Just like liljohn said go for a bigger turbine you will be happy never needing more Turbo

 

im doing the same setup with the 6.0 w/lsa heads and an On3 76mm. hopefully i can get in the 550-600hp range. good luck with the setup

 

Take note: You can only get such a big wheel in certain sized turbos. If space physically is of concern, you won't be able to fit a T6 in the car or maybe even a mid-frame. For a T4 that bolts up to most systems, you can get up to 75-78mm on the turbine now which is a nice improvement over the older 65-68mm to help flow more and prevent back pressure. Beyond this is you want more, you are going to have to jump to a physically larger turbo if you can fit it. The 75mm-78mm turbine stuff can be good for most people with a street car looking for 800rwhp with up to ~370ci. Beyond this I would recommend a Mid-Frame or jump to a T6

 

one thing im worried about is the fuel system will the dual pump 255s and 80 lb injectors be ok im using the stock lines and rails its a 99 if that makes a difference

 

We don't need that type of negativity around here... always need more turbo lol