Fiat Coupe Forum
- Funded by the Club for the benefit of all owners
- Please consider joining the Club to help keep the Forum running
- Or you can choose to make a Donation
Fiat Coupe Club UK
join the club
Fiat Coupe Forum
 
» Announced
    Posting images


» Related sites
    Main club site
    fiatcoupe.net

 
Who's Online Now
2 registered members (Kayjey, 1 invisible), 1,334 guests, and 4 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums48
Topics103,747
Posts1,170,395
Members1,671
Most Online39,516
Apr 15th, 2026
Top Posters(All Time)
barnacle 33,794
stan 32,123
Theresa 23,348
PeteP 22,313
bockers 21,083
Edinburgh 19,012
JimO 17,919
Nigel 17,387
Previous Thread
Next Thread
Print Thread
Page 1 of 2 1 2
What else is needed for GT28RS #581451
05/04/2008 00:23
05/04/2008 00:23

M
m4tty1
Unregistered
m4tty1
Unregistered
M



Hi

I have just bought Eldinho's turbo, it will be delivered to Motor-Mech on Tuesday to hopefully be fitted to my 20VT

I have ordered the following fitments, could somebody in the know take a look and let me know what else is needed and if possible where I can get them in the UK quickly.

So far I have ordered .......

Oil Return Gasket - GT Series
Gasket, for Drain Flange, GT25R, GT28R, GT28RS, GT30R, GT35R, Also oil feed flange T3

Aluminum - Oil Drain Flange (GT/T25)
Billet aluminum oil drain/return flange for GT ball bearing series turbochargers (GT25R/GT28R/GT30R/GT35R).

Oil inlet feed flange Gasket - Feed Flange (T3)
Gasket, for T3 oil feed flange and also Drain Flange, GT25R, GT28R, GT28RS, GT30R, GT35R, Also oil feed flange T3.


T25/GT25 Inlet Gasket
T25/GT25/T28 Inlet Gasket, Stainless Steel


Internal Wastegate Actuator - Special 7 psi
Actuator for internal wastegate assembly. Special lower pressure (7 psi) version of the actuator similiar to the one found on the GT28RS/GT2871R.

Thanks in advance,






Re: What else is needed for GT28RS [Re: ] #581502
05/04/2008 01:35
05/04/2008 01:35

M
MABR
Unregistered
MABR
Unregistered
M



Yes - he's finally sold it! laugh

Sorry I can't help you mate but congrats on getting that turbo for a bargain price. cool

Re: What else is needed for GT28RS [Re: ] #581512
05/04/2008 01:58
05/04/2008 01:58

M
m4tty1
Unregistered
m4tty1
Unregistered
M



Was suprised it was still there and it was a pretty much spur of the moment thing - I find most of my best decisions are smile

Just need to make sure I acquire all the right parts though, spoke to turbo Dynamics who said he though it was a direct fit, from the little I know thats completely false.

Re: What else is needed for GT28RS [Re: ] #581621
05/04/2008 06:30
05/04/2008 06:30

R
Redd
Unregistered
Redd
Unregistered
R



curious why u'd want such a low pressure actuator?

redd

Re: What else is needed for GT28RS [Re: ] #581719
05/04/2008 15:38
05/04/2008 15:38
Joined: Dec 2005
Posts: 2,180
Havant, Hampshire.
OO7 Offline
Competition Level
OO7  Offline
Competition Level

Joined: Dec 2005
Posts: 2,180
Havant, Hampshire.
Have you got a 5 stud downpipe or V-band addaptor?

Re: What else is needed for GT28RS [Re: OO7] #582014
05/04/2008 23:45
05/04/2008 23:45

E
eldinho
Unregistered
eldinho
Unregistered
E



the turbo still has the actuator on!

Re: What else is needed for GT28RS [Re: ] #584769
09/04/2008 15:44
09/04/2008 15:44

M
m4tty1
Unregistered
m4tty1
Unregistered
M



OK, no actuator needed smile that can go back.

The actuator was recommended by T dynamics, was it a poor choice ?


Motor-mech have the adapter for my standard downpipe although this may be changed later on.

So, am I actually missing anything now ?

Cheers guys

Re: What else is needed for GT28RS [Re: ] #585148
09/04/2008 21:39
09/04/2008 21:39

M
m4tty1
Unregistered
m4tty1
Unregistered
M



I have just ordered Greddy Profec B II and ordering the intercooler from timpyeon tomorrow.

Is there anything else I should be buying ?

Re: What else is needed for GT28RS [Re: ] #585214
09/04/2008 23:20
09/04/2008 23:20

E
eldinho
Unregistered
eldinho
Unregistered
E



what mods have you got?

Uprated fuel pump will be a must if you haven't already got one!

Re: What else is needed for GT28RS [Re: ] #585599
10/04/2008 15:04
10/04/2008 15:04

M
m4tty1
Unregistered
m4tty1
Unregistered
M



The car is standard, it is Big_mikes old one, i have never even driven it - it's been stood on a drive for the last 3 months.

http://www.fiatcoupeclub.org/forum/...;Main=40814&Number=511265#Post511265

http://www.showoffyourcar.com/galleries.asp?userid=523

I will order a fuel pump today, is the Walbro one fine ?


Re: What else is needed for GT28RS [Re: ] #585618
10/04/2008 15:13
10/04/2008 15:13

E
eldinho
Unregistered
eldinho
Unregistered
E



yes the walrbro 255lph should be fine, make sure you get a GSS341 or GSS342 though. also get the wiring mod done. PM Jap he does them for around £15 I think!

A performance exhaust would also be best to get the most out of the RS. and also a SIP should improve spool up!

really depends how much you have/want to spend!

Re: What else is needed for GT28RS [Re: ] #585623
10/04/2008 15:16
10/04/2008 15:16

M
m4tty1
Unregistered
m4tty1
Unregistered
M



The exhaust is going to be replaced, it has the worst one I have ever seen fitted on a coupe.

I have a Cybox fitted to my 16VT and have been more than happy with it so will opt for the same with this.


Re: What else is needed for GT28RS [Re: ] #585631
10/04/2008 15:20
10/04/2008 15:20

E
eldinho
Unregistered
eldinho
Unregistered
E



is the cybox just cat back? decat and larger downpipe would see the biggest gains!

also start saving for a new uprated clutch!

If you want approx 330bhp then the following mods would get you there

GT28RS 0.64
FMIC
SIP with airfilter apexi/ramair?
Full exhaust with decat
Walbro 255lph
wiring mod
EBC
some sort of mapping

then you need to start looking at supporting mods such as suspension, brakes and clutch.

Re: What else is needed for GT28RS [Re: ] #585672
10/04/2008 15:59
10/04/2008 15:59

M
m4tty1
Unregistered
m4tty1
Unregistered
M



GT28RS - sourced - thanks.

FMIC - coming from Timpyeon

SIP - still to get - any links you can provide ?

Full exhaust - for moment will only be from cat onwars with the Cybox

Walbro - now on order

Wiring mod - not sure - maybe motormech can help ?

EBC - Greddy Profec II on order, will be here very soon.

As for mapping will need to find an RR near to Birmingham, any suggestions, rough cost ?

Thanks

Re: What else is needed for GT28RS [Re: ] #585689
10/04/2008 16:15
10/04/2008 16:15

E
eldinho
Unregistered
eldinho
Unregistered
E



wiring mod you can get from Jap for around £15, send him a PM.

SIP, not 100% where you get these from. used to be torque italia (might still do) but i think Pro Alloy might do one?

Mapping. Personally I would go Perfect Touch in your situation. You aren't that far away and they have some expereince of coupe's in this state of tune. But I would wait until you get the whole exhaust done as your map would be out if you changed it afterwards.

Last edited by eldinho; 10/04/2008 16:16.
Re: What else is needed for GT28RS [Re: ] #585920
10/04/2008 20:38
10/04/2008 20:38

M
m4tty1
Unregistered
m4tty1
Unregistered
M



Whats the rough cost for mapping ?

Re: What else is needed for GT28RS [Re: ] #586011
10/04/2008 22:25
10/04/2008 22:25

K
kay2
Unregistered
kay2
Unregistered
K



400 is an average

Re: What else is needed for GT28RS [Re: ] #587361
12/04/2008 03:02
12/04/2008 03:02

M
m4tty1
Unregistered
m4tty1
Unregistered
M



Fccuk this is all adding up smile

After the respray I recon I will be 5K lighter plus the cost of the original car.

I have ordered this http://cgi.ebay.co.uk/FIAT-COUPE-TU...QQ_trksidZp1638.m118.l1247QQcmdZViewItem

Does anyone else have the same system ?

I'm trying to figure out how noisy this will be, hopefully not too loud ?

Also recommendations for a dump valve ?

Regards

Re: What else is needed for GT28RS [Re: ] #587364
12/04/2008 03:06
12/04/2008 03:06

E
eldinho
Unregistered
eldinho
Unregistered
E



Blueflame is a great piece of kit. cool it will be quite loud but not stupid!

forge dv006 for the dump valve smile

Re: What else is needed for GT28RS [Re: ] #587376
12/04/2008 03:25
12/04/2008 03:25

M
m4tty1
Unregistered
m4tty1
Unregistered
M




Re: What else is needed for GT28RS [Re: ] #593261
19/04/2008 20:54
19/04/2008 20:54

M
m4tty1
Unregistered
m4tty1
Unregistered
M



I have been trying to source a Forge 006 DV - I can find lots of info but nowhere to buy, can anyone point me in the right direction ?

Cheers

Re: What else is needed for GT28RS [Re: ] #601403
29/04/2008 18:43
29/04/2008 18:43

M
m4tty1
Unregistered
m4tty1
Unregistered
M




Re: What else is needed for GT28RS [Re: ] #601412
29/04/2008 18:59
29/04/2008 18:59

T
TimC
Unregistered
TimC
Unregistered
T



yes

Re: What else is needed for GT28RS [Re: ] #601470
29/04/2008 20:27
29/04/2008 20:27

J
JohnS
Unregistered
JohnS
Unregistered
J



don't get it mapped until you have a clutch that can take over 300BHP. Otherwise it will slip on the rollers and waste your hard earned ££££.
Would suggest running it at base boost on a std clutch

If you have a std exhaust you will need something better as it will impede its spoolup as well as flow would not recommend any sort of decent boost on a std downpipe as it was sized for a 220BHP car not a 320BHP one.

Re: What else is needed for GT28RS [Re: ] #601524
29/04/2008 21:59
29/04/2008 21:59

M
m4tty1
Unregistered
m4tty1
Unregistered
M



Blue flame exhaust, decat is what I have.

Clutch still to sort, any ideas ?

In terms of power, with this set up what could I realisticly acchieve ?

Last edited by m4tty1; 29/04/2008 22:01.
Re: What else is needed for GT28RS [Re: ] #601532
29/04/2008 22:17
29/04/2008 22:17
Joined: Dec 2005
Posts: 4,839
Haslemere, Surrey
M
Mark_S Offline
Forum is my job
Mark_S  Offline
Forum is my job
M

Joined: Dec 2005
Posts: 4,839
Haslemere, Surrey
John,

I am running a standard downpipe and got 300bhp at 1.2bar, only clutch slip prevented me from going higher. Not sure I want or need much more power, so in my experience going for a large DP may be optional..


997 C4S
Re: What else is needed for GT28RS [Re: Mark_S] #602672
01/05/2008 13:42
01/05/2008 13:42

J
JohnS
Unregistered
JohnS
Unregistered
J



yeah agreed. I guess I (wrongly) assume that arbitrarily people want to make as much power as they can out of the size of turbo they have.

But if you want 300BHP or indeed 320BHP the GT28RS is a real overkill.

Re: What else is needed for GT28RS [Re: ] #603206
02/05/2008 03:31
02/05/2008 03:31

M
m4tty1
Unregistered
m4tty1
Unregistered
M



Hmmmmm, now you have me thinking.

The reason I was hoping for 300BHP is it seems to be the benchmark most try to achieve, I was assuming (most liklely wrongly) that 300BHP was about the max you could run on standard internals ?

Am I wrong, what could I realisticly achieve with a 3" downpipe, the above kit and standard internals ?

Re: What else is needed for GT28RS [Re: ] #603226
02/05/2008 04:44
02/05/2008 04:44

S
suba
Unregistered
suba
Unregistered
S



340-350 bhp on that turbo is realistic. AS long as the car is mapped properly then the standard internals should be fine at that level. People have run more than that - but not realiably. I would advise you to run no more than 1.15 bar at the redline.

300bhp is a benchmark as when you go above that level of tune you are looking at much more money in terms of bhp per pound....if you want to go higher then make sure that you know how much it is going to cost you - clutch, mapping, brakes, suspension etc. Just make sure that you dont cut any corners, as it will cost you more in the long run. smile

Re: What else is needed for GT28RS [Re: ] #603241
02/05/2008 08:39
02/05/2008 08:39

M
m4tty1
Unregistered
m4tty1
Unregistered
M



Superb, the answer I was looking for smile

Page 1 of 2 1 2

Powered by UBB.threads™ PHP Forum Software 7.7.1
(Release build 20190129)
PHP: 7.4.33 Page Time: 0.019s Queries: 14 (0.013s) Memory: 0.7017 MB (Peak: 0.9124 MB) Data Comp: Off Server Time: 2026-10-30 03:58:31 UTC