View Full Version : Best place to buy a gt28r
I'm after a gt28r (2560) with .64 rear for the van. Looking on the net most are for sale overseas? Are there any uk suppliers or will I have to pay and wait for it to turn up??
Thundercat
06-10-2011, 10:16
I kept an eye on ebay till one popped up, nissan pulsar unit gt28 is what i found just have to purchase inlet adaptors for hoses to fit.
I'm after a gt28r (2560) with .64 rear for the van. Looking on the net most are for sale overseas? Are there any uk suppliers or will I have to pay and wait for it to turn up??
Going for some big boost big lad?
Just in need of a new turbo mate, my journal bearing t28 has expired. Pulsar unit is too big for the Gtt??
Just in need of a new turbo mate, my journal bearing t28 has expired. Pulsar unit is too big for the Gtt??
owen delvopments mite be able to get you 1 , and do the rear housing swap also:)
Ordered one from there thanks :agree:
I need a 3 bolt outlet adaptor now, where can i get one from in the uk??
Scroll down this link and you will find what you need matey :D
http://www.gb-ent.com/index.php?option=com_virtuemart&Itemid=26&page=shop.browse&category_id=37&vmcchk=1&Itemid=26.
Dave Reed
06-10-2011, 14:27
Ordered one from there thanks :agree:
I need a 3 bolt outlet adaptor now, where can i get one from in the uk??
Turbo dynamics sell them fella, but you won't get much change out of 50 notes :cry:
http://www.turbodynamics.co.uk/shop/9017770003-compressor-inlet-adaptor-flange-for-nissan-200sx-p-2357.html
I'm after a gt28r (2560) with .64 rear for the van. Looking on the net most are for sale overseas? Are there any uk suppliers or will I have to pay and wait for it to turn up??
Blimey Brigsy that will be a lag monster on a 1.4 I reckon :crap: I had one on a Rover a few years back, pulled like a train I have to admit :agree:
I imagine it will be fairly laggy like! Hopefully my 60ft times wont suffer too much on the dragstrip. The next step will be proper ignition map and a 2 step limiter to make it more lively :) if all else fails I'll get a .49 rear machined to fit.
Dave Reed
06-10-2011, 17:26
I imagine it will be fairly laggy like! Hopefully my 60ft times wont suffer too much on the dragstrip. The next step will be proper ignition map and a 2 step limiter to make it more lively :) if all else fails I'll get a .49 rear machined to fit.
Or just put a little gas through it ;)
That could be a plan aswell dave ;) or efi if im feeling flush!!
Dave Reed
06-10-2011, 17:37
That could be a plan aswell dave ;) or efi if im feeling flush!!
Or both... After all christmas is only round the corner :D (dare I say)
I imagine it will be fairly laggy like! Hopefully my 60ft times wont suffer too much on the dragstrip. The next step will be proper ignition map and a 2 step limiter to make it more lively :) if all else fails I'll get a .49 rear machined to fit.
I thought MArky Mark tried one on his grey drag five & lost out as the .64 was to big mate.
BluntyR5GTT
06-10-2011, 17:50
marks wasnt a ball bearing turbo iirc.
I thought MArky Mark tried one on his grey drag five & lost out as the .64 was to big mate.
Marks was journal bearing mate. I think rob@backyard ran one with gas and had pretty good results. It wont be the best on the twisties though!! My cam has been dialled in with a few degrees of retard so hopefully it will perform good at higher rpm's.
Markey Mark (BD)
06-10-2011, 18:20
I thought MArky Mark tried one on his grey drag five & lost out as the .64 was to big mate.
I did try the .64 rear, was normal journey style core with standard 270deg bearing.
I did however run a Big Jim downpipe (very litle restriction) and enlarged exhaust valves and ports to get the gasses flowing abit quicker, even still had full boost at 5k! :crap: Below that it come in very slowly.
Would of using a Roller bearing core made much difference? I've heard some people say yes and some say no, i know Adam L use to run a GT28RS on his Raider and spoke of it being abit laggy (less than mine though) but what made the main difference was the downpipe and elbow, going from standard style to free flowing made about 500rpm difference.
5k rpm doesn't sound too bad, i was thinking more like 6k for full boost. Ive drove a gtt with a big rollerbearing t28 with a .64 rear and it was pretty laggy, the power delivery was a lot more linear than the .49 rear.
BluntyR5GTT
06-10-2011, 18:38
id say u will be a tad less than 5k mr briggs. will be interesting to see how it does, ill ask ste when he gets full boost on his gt28rs
Markey Mark (BD)
06-10-2011, 18:46
5k rpm doesn't sound too bad, i was thinking more like 6k for full boost. Ive drove a gtt with a big rollerbearing t28 with a .64 rear and it was pretty laggy, the power delivery was a lot more linear than the .49 rear.
It doesn't sound too bad but for me just felt very different and below 5k there was nothing, at 75mph in 5th i could plant foot and have 2psi! :sad2: Took while to come on song and also could be one of the reason i had trouble getting it off line at Outlaw too.
Maybe if i had roller bearing core it may be different story, to be honest i'll prob never know as i'm not doing anything to that car anymore but foir me it put me off little going for another .64 rear on a C1J
BluntyR5GTT
06-10-2011, 19:00
iv just spoke to ste off here he runs a gt28R on his c1j not sure on rear housing but he sees full boost around 3.5-3.7k which is very good really
iv just spoke to ste off here he runs a gt28R on his c1j not sure on rear housing but he sees full boost around 3.5-3.7k which is very good really
I bet it has a machined .49 housing, I know CR said they could do me one when I was looking @ options for my last C1j..
With gas it would be good no doubt, without I think it may be a bit dire on the road though.
d110rkjste
06-10-2011, 20:22
I bet it has a machined .49 housing, I know CR said they could do me one when I was looking @ options for my last C1j..
With gas it would be good no doubt, without I think it may be a bit dire on the road though.
im running my car with the gt28 and a piper 300 and its smooth as, power all the way through the revs no big lad at all. the curve on the rolling road to prove this
rs250nut
06-10-2011, 20:34
I bet it has a machined .49 housing, I know CR said they could do me one when I was looking @ options for my last C1j..
With gas it would be good no doubt, without I think it may be a bit dire on the road though.
Cr turbos cast there own .49 housing for these turbos. Brilliant bit of kit with full boost around 3800-4000 with a pony cam.
That sounds ideal if I can't get along with the .64
GT28 and GT25 are two different frame sized turbo's, so be careful with what you choose, Jon.
In all honesty, you're pretty resticted on what you can use, unless, you're prepared to spend some money... There could be a GT25 using a GT28 comp wheel nowadays but I wouldn't know, as I stopped keeping up with the rollerbearing lark a while ago.
I bought this one Adam, (gt2560) hopefully i have made the right decision?!
http://www.owendevelopments.co.uk/products/product-detail.asp?prodId=3&catId=19&subId=-1
That's the standard S15 turbo. It's the rollerbearing core all the tuners have used over the years. The turbine wheel will actually fit your exhaust housing but the bearing housing is physically larger, so it's not a direct fit. The comp housing and actuator bracket will fit fine though, from your old turbo.
That's the turbo I used on the Raider too, but with the .64 back end.
i once had a ktec 350 rollerbearing.. (t28)... was seeing full boost at around 4.5k, no earlier.. (24psi at the time)...i dont think i had an enlarged elbow at the time tho... but now i have a t28 non rollerbearing.. dont see that much difference really,, except the rollerbearing power delivery was quite a bit more erm...violent? lol :agree:
Ran a gt28rs cold side on my old Raider back in the day. All good :agree:
if anyone needs a roller bearing turbo please contact me thanks glenn
my last 5 i had, which an owner told me was built to the same spec as one of marts cars had a big turbo on it pretty sure some form of t28 or maybe just the front end like mart has said and i had full boost by 3.5k 21psi and pulled all the way through the revs with no sign of dropping off at all!
Man i miss that 5. I need a bargain 5 to do up. Help lol
which an owner told me was built to the same spec as one of marts cars
Would love to know who that was/is?
just checked the email he sent me he was called john hall, i thought id messaged you about it before.
Im on my mobile so cant copy paste the email he has said it was a t28/t3 hybrid the same as marts he said he was a member on here before.
Perhaps you did. I've got a cr8p memory :(
I supplied/sold different spec' turbo's many years back, so maybe it was one of them that this guy bought? (his name doesn't ring any bells)
I'm fairly sure he wouldn't have been running the same spec' blower as what was on my old Raider...
i will pm you my conversation which i had with him via email a bit later. See if it will jog ya memory. What was the spec of the turbo on your raider? Or is it secret? When i get another 5 i really hope i could try and get the same turbo so would be nice to find out the spec
I didnt know it was possible for a T28 to spool up any earlier than 4.5k.... (with a .49 housing anyway)
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