Jump to content
SAU Community

Recommended Posts

  • Replies 162
  • Created
  • Last Reply

Top Posters In This Topic

I had another look at the GTR yesterday. All the carbon looks amazing. Rear parcel shelf, bootlid & spoiler, bonnet/vents, engine bay, gearshift paddles, even new sport steering wheel. This Guy is the CARBON KING of South Australia!!! Very cool car.

Looking forward to hearing it under full noise out at the track. More photos Martin.........and maybe some dyno sheets?

Love to see the comparison to stock setup.

Near enough 400kw at all four wheels on our new Mainline AWD dyno at 17psi boost pressure is a nice start with a conservative tune, up from 270kw at all four stock. Thats getting close to a 50% power and matching torque improvement :D

The upgraded WR35TT turbochargers are responding nicely with excellent flat boost control, not tapering away or running out of puff at the top end like the stock pieces do. Also they will not suffer the same accelerated thrust wear and failure that the stock turbochargers do over 15psi, due to being ball bearing (no thrust bearing). So its looking nice at this stage :down:

Martin

When does the boost cut in for the new turbos? Same as the stock or a little later?

Has this affected the way the car takes off or does your car still have a little lag (if it is a ADM car) ?

Regards

Mark.

This owner could have bought a 911 or a Lambo etc, but he chose to go sick on a new R35 GTR.

Good on him. I went for a run in this car yesterday & it is awesome. Definate improvement over

my Std R35. Will look forward to going out in the country where we can stretch its legs a bit more.

Hmmm... these new turbos are looking good.

The best way of describing the response of this package is to show you the raw numbers. Attached is a dyno graph from our Mainline Chassis dyno that shows you exactly the gains vs a tune + midpipe GTR in actual percentage - the very best way of showing the comparison :)

wr35ttdiff.jpg

The best way of describing the response of this package is to show you the raw numbers. Attached is a dyno graph from our Mainline Chassis dyno that shows you exactly the gains vs a tune + midpipe GTR in actual percentage - the very best way of showing the comparison :woot:

wr35ttdiff.jpg

How large is the trade off lower in the rev range given the turbo's are now larger?

I did not get to go far in this car but it did not feel much different from the bottom end.

The new ball bearing core spools up faster than the std plain bearing & this car has aftermarket

dumps that replace the primary cats so less back pressure.

To really tell the difference I would have to drive this one & then mine back to back but considering

how new this car all is I dont see that happening & I wouldn't expect to.

Going for a ride in it will be fun enough.

The boost response of these turbochargers is absolutely excellent. No doubt there is a couple of hundred rpm difference in the spool - it is impossible to avoid this when going to larger turbochargers, however the short initial gearing of the GTR and its lightning fast 'on boost' GR6 transmission effectively hide any of this to the point where the car feels like it has stock bottom end response. Where it is much different is higher in the rpm where the compressors simply dont run 'out of wind' and fall of boost like the stock items do. Most importantly being ball bearing cored there are no thrust bearings to go into rapid wear and failure mode as happens with the stock GTR turbos. My belief - and I am biased on this one so forgive me - is that the WR35TT modification is superbly matched to the GTR, adding reliability with ball bearing core design, and integrating all of the factory pleasantness of a properly integrated turbocharger solution.

As for US dealers and fitters. We have a main Willall distributor in Atlanta Georgia, that being Forged Performance, and then several dealers throughout the country. Fontana Nissan Motorsport in LA, SPE are another in Socal, in fact there are many dealers you can work with directly on the East Coast of the US that have access to Willall parts and technology :D

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • I'm seeing torque specs all over the place for the OUTER tie rod, but none for the INNER tie rod, where it connects to the steering rack. Even in videos, people are just tightening em up as much as they can with a wrench and that's it. Anything tightened down without torque makes me nervous. Anyone know what the spec is for it?
    • Hope you had a great time here in our tiny country.   The JDM scene we have here is quite small, it's mostly BMW, Volkswagen with burble tunes haha. But the few JDM cars we do have in the scene are pretty nice. Some of my friends drive cool s14's too. Both built engines, red one makes abt 500, blue one abt 400 i think?
    • Ye good idea , would have never thought of something like that. Might aswell do it to every pulley and the balancer while I’m there 
    • Use an LS1 or similar, via kit like Frenchy's. But.... It's probably not the alternator. It sounds like belt squeal, which would be because the pulleys are glazed. Rub every groove on the pulleys with 120 grit paper. Report back. Oh, and new belts afterwards too. The old new ones will be shitted up already.
    • Hello all I have 2 r34 sedans , one turbo one na, only recently aquired the na 34.  Man what is with these things.... My turbo 34 started sounding like a super charger, it was screaming at anything above 4000rpm , I took the alternator apart and replaced the front bearing which is the only one I think you can access and it did not fix the issue so presumably the bearing in the rear of the alternator is gone. ( diagnosed it was the alternator by taking off the aux belts one by one to figure out which pulley or bearing it was )  My friend gave me one he had lying around, Installed it , it did not squeal for maybe 500kms and now its started to squeal again briefly on startup  Recently got an na r34 and I replaced the timing belt, water pump + all the auxillirary belts. Runs amazing but it suddenly developed the same squeaking problem but significantly worse, Ive had my neighbour come down screaming at me because it was waking her up everytime I moved the car. It takes a good 2 minutes before it quietens down.  Im yet to diagnose where its coming from but im fairly sure its coming from the alternator aswell. My question isnt about how to fix it but rather where can you get a new alternator for an rb25 neo??? Ive searched everywhere but I havent been able to find a direct fit oem type replacement thats not genuine. All the automotive stores sell an oex one - BXA035 - which I picked up for cheap through a friend with staff discount , got it home only to find the connector is completelty different.... As far as im aware bxa035 is for rb20/30's and after a bit of figuring out the bxa035 has an ev14 type connector, which is tiny compared to the rb25 connector. I actually had an ev14 connector lying around which I was considering just replacing the bigger plug with to get the alternator working but the bxa035 is rated for 70amp vs the rb25 alternators are 90amp ( or so ive been told ? ) That paired along with the fact im about to install an amp + sub in the back and I have the stock sized small battery Im not sure itll do the job unless anyone has another opinion?  I know and have seen all the websites selling the ls1 alternator conversion kit but I am not going down that route, nor do I have the money to. Hopefully I can figure out how to get 2 brand new alternators for both cars. I would buy second hand which there seems to be many of but considering how common this seems to be im sure If I installed a second hand one it would start squealing in no time  Or even better if anyone knows how to fix the issue directly with the alternator itself... Any input appreciated Thank you     Link for bxa035 connector picture
×
×
  • Create New...