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#1620825 - 23/05/2018 17:46 GT28RS Setup
charlieb01 Offline

Registered: 14/04/2015
Posts: 11
Loc: Surrey
Excuse the ignorance, this is the first time i'm going down the tuning route with any car.

My 20vt is running on the current setup:

FMIC, SIP, GT28RS, 3" downpipe.

I've just finished this work and wont have the funds to get a remap (and uprated clutch) until around the end of the year.

I have currently set the wastegate actuator to its loosest setting and bypassed the ECU boost controller so there's basically no boost running.

Question is, is this necessary? Is it safe to have the GT28RS running off the ecu boost controller without a remap?

I have a GTEC2 chip that isn't fitted, would that help it?


#1620826 - 23/05/2018 18:01 Re: GT28RS Setup [Re: charlieb01]
deannn_20VT Offline
My life on the forum

Registered: 12/08/2006
Posts: 1880
Loc: Poland
You need a remap. Period.
Self-tuned and forged 20VT, GTX2867R gen.II, Ecumaster EMU lack Stand Alone, Bosch 625cc, TRE FMIC.

#1620827 - 23/05/2018 18:13 Re: GT28RS Setup [Re: charlieb01]
DaveG Online   content
Club member 311
Forum is my life

Registered: 16/12/2005
Posts: 7071
Loc: Muscat, Oman for a while
charlieb01 YHPM
1996 Portofino 20vt & 2000 Pearl White Plus
1985½ & 2016 2017 Fiat 124 Spider + XF Sportbrake

#1620889 - 25/05/2018 07:50 Re: GT28RS Setup [Re: charlieb01]
Flea Offline
club member 251
Forum is my life

Registered: 17/12/2005
Posts: 5403
Loc: Castle Combe
The problem you have is injector size for that turbo. Keep the boost low at circa 1bar (can run direct off the actuator) and you will certainly be okay (if all else is working as it should).

#1620918 - 25/05/2018 19:17 Re: GT28RS Setup [Re: charlieb01]
Ginodimeo Offline

Registered: 12/04/2018
Posts: 3
Loc: Hertfordshire
What's the best size injector for that setup?

#1626277 - 24/10/2018 02:17 Re: GT28RS Setup [Re: charlieb01]
lenzoferrari Offline
Making a profit

Registered: 20/02/2009
Posts: 218
Loc: london
Go for a set of 440cc they will be fine

#1626648 - 02/11/2018 17:25 Re: GT28RS Setup [Re: charlieb01]
liam_gill Offline
Making a profit

Registered: 01/10/2009
Posts: 265
Loc: berkshire england
definitely run it on the gtec 2 with super unleaded fuel but run low boost untill you can get it mapped