Welcome to the SR20 Community Forum - The Dash.
Register
SR20 forum logo

Thread: GT28RS Upgrade

+ Reply To Thread
Posts: 41-50 of 89
2010-06-05 01:53:15
#41
I'm being given some -4 line with a 90* bend, is the 14mm banjo fitting the one I need? And how long should the feed line be?
2010-06-11 00:14:22
#42
Okay, so I ended up getting a -3 an line with a 90* on one end and about a foot long. I am ordering some stuff from atp to finally get all this put together. Because it is -3, is it still wise to get a restrictor? I probably wont use the stock banjo fitting/bolt. I also need to know what size that banjo fitting is (12mm isn't it?).

Sorry for all these posts but I don't want to have to order stuff more than once.
2010-06-12 00:42:14
#43
Originally Posted by RedDragun
Well now I'm confused, after looking it up over and over again, people are saying they never had a problem with the stock oil lines and the the built in restrictor that the disco has... I don't know what to do.


run the built in restrictor.

i didnt use a restrictor on my t25 or my t28 and they ran fine for years !

i now run one in my 718r only cause its built in.

stratton.
2010-09-12 01:03:37
#44
Well I got to putting the turbo on about a month ago, and realized I needed some new intercooler piping fabbed up, and that the block needed to be ground on, and that most of my tools had been thrown away when my mom cleaned out the garage. I decided to call a reputable tuner shop and set up an appointment (I've had this place do the intercooler piping before). Had it towed out there yesterday and they are basically going to put it all back together for me (I don't have the time, tools, and enough welding experience to do it right). I should have the car back up and running sometime next week.

They are going to use braided lines and whatever they feel is right one the oil feed (restrictor if it needs it), so it should be pretty nice when it is done. I also pulled off the dump pipe and cleaned it up, painted it, wrapped it with header wrap, and painted that with the header wrap coating. I can't wait to drive a boosted car again, it's been way too damn long.

Here she is on her way to the shop:


I also just purchased a 14point7 wideband which I will be installing once I have the car back so that I can finally fine tune the engine; I've been running a JWT bin on my calum ecu for a long time without changing much.

I'll update again once I hear more about the car!
2010-09-12 01:13:24
#45
post again once its done!
2010-09-12 14:23:05
#46
sounds like a cool setup also looking forward to some more pics of the ic piping they fab
2010-09-14 04:24:43
#47
I have a question, it's been on my mind for a while but I can't seem to figure out if it's going to be safe. I was running 18psi daily on my T28 on 91 octane pump gas for about 2 years. The highest I had it was 24psi on pump gas at the track for ten passes (I was expecting something to fail, but nothing did. Not until a year later). I am wondering if 18psi daily on the GT2860RS will be safe? I have a fairly conservative tune but decently aggressive base timing (exact number escapes me). I should have enough fuel for 400whp, and I don't think I'll be over 350whp but you never know.
2010-09-14 04:51:43
#48
Originally Posted by RedDragun
I have a question, it's been on my mind for a while but I can't seem to figure out if it's going to be safe. I was running 18psi daily on my T28 on 91 octane pump gas for about 2 years. The highest I had it was 24psi on pump gas at the track for ten passes (I was expecting something to fail, but nothing did. Not until a year later). I am wondering if 18psi daily on the GT2860RS will be safe? I have a fairly conservative tune but decently aggressive base timing (exact number escapes me). I should have enough fuel for 400whp, and I don't think I'll be over 350whp but you never know.


idt 18psi will be safe based off of the compressor map. If you look at the compressor map, the RS runs out of breath. Also, 'safe' is relative. Do you want to be on the edge of 'safe' or the middle? How many miles did you put on your engine @ 18psi daily w/the T28?

-G
2010-09-14 05:13:09
#49
I put about 20k miles on it with the T28.
2010-09-14 11:46:06
#50
18psi is fine on a gt28rs as long as you have the fuel to back it up. At 20-22psi its falling out of its efficiency range although I have seen several vdub running 22-24psi on the gt28rs.
+ Reply To Thread
  • [Type to search users.]
  • Quick Reply
    Thread Information
    There are currently ? users browsing this thread. (? members & ? guests)
    StubUserName

    Back to top