LightningTeg

I've done some searching and have gotten both yes and no. Im installing my GT28r oil line tommorow and currently have a -3an line I used on my greddy 18g before and it has no restrictor (Feed comes from sandwhich plate and oil pressure there at WOT is close to 80+ with 40 weight oil). Will I be ok with no restrictor?

Oh I will be using this for the fitting into the turbo..

Aeroquip FBM2929

hoorah

I'm wondering the same question, Garrett site says yes and no as well... confusing.
Someone with experience, please help

JDMCRX

iTrader: (2)

GT28 are for snowmobiles not cars get a real turbo

JDMCRX

iTrader: (2)

BTW bump for a good question cause 80psi and no oil restrictor on those GT series BB tend to seep and leak pass the seals.

Hybrid96EK

Hey, got a question for you. why would you switch from the 18G to the GT28R? I had a GT28R on my single cam but sold it and now have a B18B. I was under the impression that the GT28R was a little on the small side for the B18B... no?

LightningTeg

Im trying to make the ultimate street car and wont be going past 300whp. The spool time wasnt doin it for me with the 18g, and this thing should be instantaneous.

Plotting the compressor map it looks great. I can see why youd want something bigger for a vtec motor though...

dpetro1

you need to run a restrictor on ball bearing turbos, no question about it.

straight from the Garrett website...
"Garrett ball bearing turbochargers require less oil than journal bearing turbos. Therefore an oil inlet restrictor is recommended if you have oil pressure over about 60 psig. The oil outlet should be plumbed to the oil pan above the oil level (for wet sump systems). Since the oil drain is gravity fed, it is important that the oil outlet points downward, and that the drain tube does not become horizontal or go “uphill” at any point."

for more info
http://www.turbobygarrett.com/turbob...o_tech101.html

Hybrid96EK

It spooled quite quickly on my D16Y8... I am not running a Vtec engine right now.. which is why I didn't understand why I couldn't run the GT28R on the LS engine for now and shoot for 270 or so whp... I mean, 270whp will make for quite a quick street car.

Axix24

run the 0.03" oil restrictor fitting from atp turbo..

LightningTeg

I will. It'll probably be a week before I can get that though.

redtegra

my gt2871r got oil starved (no inline filter, btw GET ONE!) so i sent it to get rebuilt but turns out the shaft was crooked so the chra is scrap. anyway i got it back in pieces and i saw that the inlet nipple has a built in restrictor. is anyone aware if this is enough alone? that hole that you see is the only hole for the oil to enter.

NOSPNSRS

I know this post is dead, but I think I just found out that my gt28 needs a restrictor because. I'm blowing smoke!

TheShodan

iTrader: (14)

If its a GT28R then fine... get a .030" restrictor, mix and stir.

LightningTeg

I ran that turbo for a year or so no problems whatsoever! Really nice powerband