Jump to content
SAU Community

R35 Performance Tuning - Willall

SERGTR

By SERGTR,
in R35 GTR

 Share

Recommended Posts

SERGTR Newbie

SERGTR

Posted
Posted

I've just fitted the Willall cat-back Titanium exhaust system in conjunction with the Cobb Accessport flash using the Willall map for 98+ RON fuel. Initially, I considered the Akrapovic system but the value, the "home-grown" support and the performance offered by Willall swayed me in their direction. After a minor glitch with a scratched Cobb screen I got to drive the end result yesterday after having my Nissan dealer fit the exhaust. I've owned tuned EVO's and Porsches, ridden Superbikes for years and driven open-wheelers at track days. None have managed to combine the noise, handling and shocking acceleration of the GTR with ca. 630+ bhp. I bought the Cobb Accessport with TCM but haven't given it the 3,300 rpm launch so wait out for more feedback.

Link to comment
https://www.sau.com.au/forums/topic/355169-r35-performance-tuning-willall/
Share on other sites
g35me Mentor

g35me

Posted
Posted

I've just fitted the Willall cat-back Titanium exhaust system in conjunction with the Cobb Accessport flash using the Willall map for 98+ RON fuel. Initially, I considered the Akrapovic system but the value, the "home-grown" support and the performance offered by Willall swayed me in their direction. After a minor glitch with a scratched Cobb screen I got to drive the end result yesterday after having my Nissan dealer fit the exhaust. I've owned tuned EVO's and Porsches, ridden Superbikes for years and driven open-wheelers at track days. None have managed to combine the noise, handling and shocking acceleration of the GTR with ca. 630+ bhp. I bought the Cobb Accessport with TCM but haven't given it the 3,300 rpm launch so wait out for more feedback.

What Willall tune did you get? The Stage III 98 RON one?

  • 1 month later...
Munro Experienced

Munro

Posted
Posted

I think these cars all vary a bit but I had Cobb with Willall custom tune

and just a midpipe ages ago and gained almost 25% power at the wheels.

Its hard to work out flywheel horsepower exactly but this claim does sound

quite realistic.

I have not had a chance to go in Keirs R35 since he put the new "built"

engine and turbos on it, but with over 500 awkw that makes it approx

80% increase over std power!

Totally amazing cars. And they can hook up the power which makes them all the

more impressive.

I am sure they are plenty of commodores and falcons cruising around with

500kw at the wheels these days, but whats the point if you can't put it down?

  • 1 month later...
  • 3 weeks later...
Munro Experienced

Munro

Posted
Posted

And the result is............. the 2011 model made 313 rwkw standard and jumped to 361rwkw

with the Willall midpipe and COBB tune. Thats a 15% increase!

Car feels amazing to drive now, much more mid range torque, and the power feels more linear.

Haven't had time to get up in the hills yet, but from what i have experienced so far - Amazing difference.

  • 7 months later...
  • 3 months later...
boostED82 Collaborator

boostED82

Posted
Posted

Hi Guys, I'm sure this has been covered but I could not find - what stock power is an MY09/10 R35 GTR at the wheels, before and after Mid-pipe and Stage 1 COBB tune (98RON)???

Roughly...

Cheers,

Ed

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Erelyes
      Ceramic turbine damage to engine - what did yours do?

      By Erelyes · Posted

      Ha, well, it's been.... a bit of a journey. Things have taken much longer than I'd hoped. I'll probably put up a thread at some stage. Hopefully soon. The car's not done any kms since my update in June though, put it that way.
    • Dose Pipe Sutututu
      M35 Aftermarket Fuel Pump

      By Dose Pipe Sutututu · Posted

      Here's the chart for fuel pressure vs. current draw, assuming your base fuel pressure is 3 bar and you run like 0.5bar boost on WOT, you should only momentarily hit 9amps here and there. (Ignore my prev post, I cannot read a chart these days it seems)
    • GTSBoy
      RB25 Drama's

      By GTSBoy · Posted

      Those comp test results are not hideous. Whether they are accurate or not (ie, when that comp tester says 140 psi, is the real pressure120, 140 or 160?) is unknown to us. The state of the battery used to crank it over is unknown, etc etc. Many people around here would say that the absolute values and the spread are perfectly fine to just add boost and keep going. I personally would be happier with a narrower spread than that, but even the diff between 125 and 145 is not terrible. That one cylinder at 125 though, has probably copped some damage relative to the others. You should inspect the valves seeing as you've got it open. Do you know how to measure installed ring gaps? That, and an inspection of the rings themselves, is how you will determine whether they need to be replaced. If you're not good to do these things, take the block and the pistons and rings to a shop that is, and ask them for the go/no-go on them. Do the bores need a hone at all? If so, you might well be justified in getting some different pistons in order to get away from the ring supply problem. Whether you're happy to spend a lot more money right now, on more gear, rather than less money, but an amount that looks stupid given that you will only get a handful of rings in exchange for that money, is for you to decide.
    • iain_ST44GA
      M35 Aftermarket Fuel Pump

      By iain_ST44GA · Posted

      also possibly backed up to my filler and shat down it! 🤣
    • Julsmadrid
      RB25 Drama's

      By Julsmadrid · Posted

      Ok so i would love some advice here please, i purchased an R33 a few months back and its had a few mods done to the engine, its an RB25det running a Master ECU, 1200cc injectors, bigger turbo, oil cooler, oil filter relocation kit, Spool H-beam rods, acl/ross pistons. When i removed the motor from the vehicle (as its getting a respray) i thought i would compression test it and these are the following results. Cylinder 1-145psi, Cylinder 2-143psi, Cylinder 3-125psi, Cylinder 4-145psi, Cylinder 5-140psi, Cylinder 6-135psi this test was done with the motor on the ground and powering up the starter motor. I dropped the sump and found broken oil squirters on cylinder 3,5 and 6. I was told my rings are probably worn so i stripped the motor completely to get a new set of rings for it. The trouble is no one has these rings anywhere and they have to be custom made by Ross over in the states and will cost about $600+$200 delivery. My question is how can i tell if my rings are at fault and if they are still ok and is this price ok for a set of rings?
×
×
  • Create New...