T28 Question - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

benefitx · 09-25-2007, 09:34 PM

so i just bought this turbo

http://www.zilvia.net/f/showthread.php?t=155740

will i need to use a oil restrictor? i mean if its coming off an sr20det blacktop , do they have stock oil restrictors in the block or what? or is it in the turbo...

oh and is that turbo an s14/s15

S14GE · 09-25-2007, 10:11 PM

If the T28 was pulled off an S14 SR, you are going to have to determine whether or not the turbo is ball bearing by looking at the serial numbers on the turbo. The stock T25 turbo lines from the S13 SR will not fit without modification, so Stainless Steel turbo lines would be the route you should take-still leaving you with one more option. Since the T25 from the S13 SR is not ball bearing, you can use your stock banjo bolts only if you have determined that your T28 is NOT ball bearing. If it is ball bearing you will have to do away with the stock banjo bolts, get a fitting on one end of the line that fits on the block, and the oil restrictor on the other end which threads right into the turbo. BTW, stock thread on the S13 SR BLOCK is 12x1.25 METRIC (thread of S13 stock banjo bolt.) Does that make any sense?

IT IS an S14 Turbo- no split on the back of the turbine housing between the flapper door, and the turbine wheel.

www.takamotorsports.com

go to products> restrictor fittings>

Putting a restrictor on your turbo, is done to regulate oil PSI to prolong the life of your turbo, because higher engine speed means greater engine oil PSI. TOO much oil in your turbo can lead to a blown seal, and the only way to diagnose the problem is oil coming out of the compressor housing, or oil burned out the turbine down the exhaust. Ball bearing turbo's are not rebuildable- so DO YOU NEED A RESTRICTOR? YES it's better to be safe than sorry spending $12 or so on a restrictor sounds a lot better than throwing away $400-500 on a turbo.

SEARCH. SEARCH. SEARCH.

hope this helps...

benefitx · 09-25-2007, 10:18 PM

i already bought taka lines...ok i guess ill get a restrictor, do i need .06 or .03..

and that is a BB turbo..

and why would i need to run an aftermarket oil restrictor if it is a stock turbo?

S14GE · 09-25-2007, 10:32 PM

S13 T25 turbo- non ball bearing

if yours is ball bearing, get the ball bearing restrictor- .03

benefitx · 09-25-2007, 10:38 PM

well the .06 says t25/t28...

the .03 is for the gt series..

Sileighty_85 · 09-26-2007, 07:26 AM

Quote:

Originally Posted by benefitx

and why would i need to run an aftermarket oil restrictor if it is a stock turbo?

Cuz the Stock restrictor is built in to the Banjo Bolt so when you run SS Lines they dont have restrictors in them so you have you buy them for your setup

benefitx · 09-26-2007, 08:04 AM

oh ok...thanks

.03 or .06

benefitx · 09-26-2007, 08:34 AM

i just sent payment for the .06...can someone chime in because if its the wrong one i can still change it...i e-mailed taka anyways

PhilthyS13 · 09-26-2007, 01:55 PM

I'm doing the same thing and I emailed Harp and he told me .06.

09-25-2007, 09:34 PM	#1
benefitx Banned from the Marketplace Join Date: Oct 2006 Location: suwanee ga Posts: 670 Trader Rating: (0) Feedback Score: 0 reviews	T28 Question so i just bought this turbo http://www.zilvia.net/f/showthread.php?t=155740 will i need to use a oil restrictor? i mean if its coming off an sr20det blacktop , do they have stock oil restrictors in the block or what? or is it in the turbo... oh and is that turbo an s14/s15

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09-25-2007, 10:11 PM	#2
S14GE Zilvia Member Join Date: Jan 2007 Location: Norfolk, VA Age: 37 Posts: 190 Trader Rating: (0) Feedback Score: 0 reviews	If the T28 was pulled off an S14 SR, you are going to have to determine whether or not the turbo is ball bearing by looking at the serial numbers on the turbo. The stock T25 turbo lines from the S13 SR will not fit without modification, so Stainless Steel turbo lines would be the route you should take-still leaving you with one more option. Since the T25 from the S13 SR is not ball bearing, you can use your stock banjo bolts only if you have determined that your T28 is NOT ball bearing. If it is ball bearing you will have to do away with the stock banjo bolts, get a fitting on one end of the line that fits on the block, and the oil restrictor on the other end which threads right into the turbo. BTW, stock thread on the S13 SR BLOCK is 12x1.25 METRIC (thread of S13 stock banjo bolt.) Does that make any sense? IT IS an S14 Turbo- no split on the back of the turbine housing between the flapper door, and the turbine wheel. www.takamotorsports.com go to products> restrictor fittings> Putting a restrictor on your turbo, is done to regulate oil PSI to prolong the life of your turbo, because higher engine speed means greater engine oil PSI. TOO much oil in your turbo can lead to a blown seal, and the only way to diagnose the problem is oil coming out of the compressor housing, or oil burned out the turbine down the exhaust. Ball bearing turbo's are not rebuildable- so DO YOU NEED A RESTRICTOR? YES it's better to be safe than sorry spending $12 or so on a restrictor sounds a lot better than throwing away $400-500 on a turbo. SEARCH. SEARCH. SEARCH. hope this helps...

09-25-2007, 10:18 PM	#3
benefitx Banned from the Marketplace Join Date: Oct 2006 Location: suwanee ga Posts: 670 Trader Rating: (0) Feedback Score: 0 reviews	i already bought taka lines...ok i guess ill get a restrictor, do i need .06 or .03.. and that is a BB turbo.. and why would i need to run an aftermarket oil restrictor if it is a stock turbo?

09-25-2007, 10:32 PM	#4
S14GE Zilvia Member Join Date: Jan 2007 Location: Norfolk, VA Age: 37 Posts: 190 Trader Rating: (0) Feedback Score: 0 reviews	S13 T25 turbo- non ball bearing if yours is ball bearing, get the ball bearing restrictor- .03

09-25-2007, 10:38 PM	#5
benefitx Banned from the Marketplace Join Date: Oct 2006 Location: suwanee ga Posts: 670 Trader Rating: (0) Feedback Score: 0 reviews	well the .06 says t25/t28... the .03 is for the gt series..

09-26-2007, 08:04 AM	#7
benefitx Banned from the Marketplace Join Date: Oct 2006 Location: suwanee ga Posts: 670 Trader Rating: (0) Feedback Score: 0 reviews	oh ok...thanks .03 or .06

09-26-2007, 08:34 AM	#8
benefitx Banned from the Marketplace Join Date: Oct 2006 Location: suwanee ga Posts: 670 Trader Rating: (0) Feedback Score: 0 reviews	i just sent payment for the .06...can someone chime in because if its the wrong one i can still change it...i e-mailed taka anyways

09-26-2007, 01:55 PM	#9
PhilthyS13 Zilvia Junkie Join Date: Jun 2005 Location: N/A Age: 46 Posts: 345 Trader Rating: (4) Feedback Score: 4 reviews	I'm doing the same thing and I emailed Harp and he told me .06.