GTR modding coming along quite nicely
06 November 2010, 12:14 PM
#32
Scooby Regular
Thread Starter
Join Date: Nov 2000
Location: 32 cylinders and many cats
Posts: 18,658
Likes: 0
Received 1 Like
on
1 Post
Back to GTRs... stock turbo full weight R35 has just done 10.1 quarter. E85, pumps, injectors, Cobb, intake, exhaust, sticky rear tyres.
08 November 2010, 03:51 PM
#33
Scooby Regular
Join Date: Jun 2005
Location: Shell petrol station
Posts: 4,495
Likes: 0
Received 0 Likes
on
0 Posts
Good news, picked up a COBB off Ben for my GTR just the stage 2 map at present and that is a night and day difference. Thinki'm going to treat myself to full decat and filters with a GTC custom COBB tune to see whatthe fuss is all about
11 November 2010, 09:52 AM
#35
Scooby Regular
Join Date: Jun 2005
Location: Shell petrol station
Posts: 4,495
Likes: 0
Received 0 Likes
on
0 Posts
John i appreciate you have done a lot of work with GTC and COBB and i've spoken to you when i had my EVO 9 and was using ECU Flash which again you did a lot of work on!
In your experience with the GTR is it worth while having the custom tune with just the Y-Pipe on? I'm thinking of going the full hog but i like the more subtle features of a stock appearence and it seems that to fit the downpipes requires eninge removal from what i've been told?
In your experience with the GTR is it worth while having the custom tune with just the Y-Pipe on? I'm thinking of going the full hog but i like the more subtle features of a stock appearence and it seems that to fit the downpipes requires eninge removal from what i've been told?
11 November 2010, 12:29 PM
#36
Scooby Regular
Thread Starter
Join Date: Nov 2000
Location: 32 cylinders and many cats
Posts: 18,658
Likes: 0
Received 1 Like
on
1 Post
I would go for a custom tune with just the Y-pipe, most find it just right. Downpipes don't need engine removal, but can take all day to do, and they can be quite noisy. You do gain some spool up though, but the GTR is hardly lacking in low down torque especially with that gearbox.
If you were doing downpipes, I would also consider injectors and intakes to make the most of them. If you do downpipes without injectors, often we have to hold things back a bit on top end boost to stop them running out of injector.
So Y-pipe and custom tune are very Goldilocks.
If you were doing downpipes, I would also consider injectors and intakes to make the most of them. If you do downpipes without injectors, often we have to hold things back a bit on top end boost to stop them running out of injector.
So Y-pipe and custom tune are very Goldilocks.
Last edited by john banks; 11 November 2010 at 12:32 PM.
14 November 2010, 08:27 PM
#42
Scooby Regular
Thread Starter
Join Date: Nov 2000
Location: 32 cylinders and many cats
Posts: 18,658
Likes: 0
Received 1 Like
on
1 Post
Mentioned a few different cars in this thread, not just one. Std car remapped does about 11.0, fastest on stock turbos 10.1, fastest with built engine and upgraded turbos 9.1 IIRC.
17 December 2010, 10:32 PM
#45
Scooby Regular
Thread Starter
Join Date: Nov 2000
Location: 32 cylinders and many cats
Posts: 18,658
Likes: 0
Received 1 Like
on
1 Post
It could an no doubt will rev higher to give a wider power band. This is a 4.0 with extra bore but stock stroke. The 4.2s going to 8000+ RPM will be interesting, but to me it is all overkill because of traction problems.
20 December 2010, 10:02 AM
#47
Scooby Regular
Thread Starter
Join Date: Nov 2000
Location: 32 cylinders and many cats
Posts: 18,658
Likes: 0
Received 1 Like
on
1 Post
Yes I believe so, there are threads about doing cross country road trips in some of the AMS development cars. However, that level of power and torque would need tyres which may not be legal in Europe, in the US they have some road legal drag radial options.
20 December 2010, 10:19 AM
#49
Scooby Regular
Join Date: Mar 2004
Posts: 3,574
Likes: 0
Received 0 Likes
on
0 Posts
Amazing. Considering used cars are dipping under 40k now its got to be one of the best VFM cars out there. What are they stock, 500ish bhp?
Such a shame that its not a hatch back as I would like one but need to fit my dog in the back.
Such a shame that its not a hatch back as I would like one but need to fit my dog in the back.
20 December 2010, 07:03 PM
#53
Scooby Regular
Thread Starter
Join Date: Nov 2000
Location: 32 cylinders and many cats
Posts: 18,658
Likes: 0
Received 1 Like
on
1 Post
It is, but on these dynos a stock GTR would do about 430 or 440 WHP. Even if it is 1100 BHP flywheel it is still 600 more than the stock car.
20 December 2010, 10:39 PM
#54
Scooby Regular
Join Date: May 2006
Posts: 2,278
Likes: 0
Received 0 Likes
on
0 Posts
John, do you have any knowledge/experience of the Link G4 ecu?
I've just bought an R33 Skyline GT R that's had a forged rebuild at Risingsun Performance but is still on the stock ecu. The G4 seems to get good write ups on the Skyline forums or can you recommend anything else?
Tia
I've just bought an R33 Skyline GT R that's had a forged rebuild at Risingsun Performance but is still on the stock ecu. The G4 seems to get good write ups on the Skyline forums or can you recommend anything else?
Tia
Thread
Thread Starter
Forum
Replies
Last Post
Mattybr5@MB Developments
Full Cars Breaking For Spares
33
29 August 2017 07:18 PM
Uncle Creepy
Other Marques
43
27 December 2015 04:02 PM
