Jump to content
SAU Community

Recommended Posts

wow! that would have to be close to the most innacurate article on GTRs I've ever read. also it uses a 3 year old CG image of the next gen skyline in an article that doesn't even mention it? weird.

for the record, mitsubishi and subaru dont come anywhere near close to matching the electronic AWD system. They use mechanical full-time AWD systems that dont use a computer at all, rather just a centre diff that works much like a regular diff but transfers torque between front and rear during slippage. Its basically a system that allows for 2 different torque splits, not infinitely variable torque split like ATTESA.

but yes the article is a bit more marketing hype than actual facts. There was a few facts in there, concerning the skyline's dominance of the racing scene but to say that other cars like porsche and bmw are only now catching up to the skyline is a bit over the top. even the R34 GTR's technology is getting a bit dated now, but the new one should start a whole new era for the GTR :D

  • 4 weeks later...

^^ The new 997 Turbo has a clutch based torque control to the front wheels as per...

"Featuring PTM (Porsche Traction Management) the new system incorporates a clutch-based system which varies the amount of torque to the front wheels, regardless of wheel slip front and rear. This, according to Porsche, aids traction and the handling by redirecting the torque to control oversteer or understeer, thus resulting in far more neutral handling, as well as greatly improved performance in all weather conditions (as opposed to older AWD system which gave the Turbo stability under hard acceleration)"

Porsche claim 100ms time for to modulate power to the front.

cayenne-PTM2.jpg

Transfer case, hydraulic ram and pivot fork look familiar :bunny:

Edited by GeeTR

Haha i like the 2nd paragraph

which states: By 1996 the 2.0L engine was producing 160hp and the Skyline won more than 50 races in the next 3 years....

Sounds like a badly written Herald article, your brother doesn't live in Auckland or Hamilton does he?

lol took them that long huh.. 997, well, like i said b4, its not outdated if theres nothing better

1986 called and mentioned the Porsche 959. Dunno if they can really copy their own idea.

http://www.autozine.org/technical_school/t...tion_4wd_21.htm

1986 called and mentioned the Porsche 959. Dunno if they can really copy their own idea.

http://www.autozine.org/technical_school/t...tion_4wd_21.htm

Exacty! Nissan copied the idea from Porsche from the beginning! And not just the 4WD system either.

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

    • Ok i will get those 310mm. I found one but on a different site. This is the description on those...is it ok? Technical parameters: - Axle: front. - Disc type: ventilated. - Number of holes: 5. - Disc diameter: 310mm. - Total height with center: 54mm. - Thickness (new/min.): 30/28mm. - Designed for brake calipers manufacturer: Sumitomo.
    • You Gregged a whole racetrack!?
    • Look for broken wire or bad connector at the motor. Might not be it, but is worth starting there, as it is easy.
    • Hi everyone, I’m having an issue with my R32 GT-R. Sometimes, when the car goes over a bump or experiences some vibration, the 4WD warning light comes on the dashboard. When I check the code from the control unit in the trunk, it shows Code 19 – ETS Motor. However, everything seems to be working fine — if I turn off the engine and restart the car, the light goes away and everything functions normally. Has anyone experienced this before? Where should I start troubleshooting this issue? Thanks in advance!
    • I'm back from the dyno - again! I went looking for someone who knew LS's and had a roller dyno, to see how it shaped up compared to everything else and confirm the powerband really is peaking where Mr Mamo says it should. TLDR: The dyno result I got this time definitely had the shape of how it feels on the road and finally 'makes sense'. Also we had a bit more time to play with timing on the dyno, it turns out the common practice in LS is to lower the timing around peak torque and restore it to max after. So given a car was on the dyno and mostly dialled in already, it was time for tweaking. Luis at APS is definitely knowledgable when it came to this and had overlays ready to go and was happy to share. If you map out your cylinder airmass you start seeing graphs that look a LOT like the engine's torque curve. The good thing also is if you map out your timing curve when you're avoiding knock... this curve very much looks like the inverse of the airmass curve. The result? Well it's another 10.7kw/14hp kw from where I drove it in at. Pretty much everywhere, too. As to how much this car actually makes in Hub Dyno numbers, American Dyno numbers, or Mainline dyno numbers, I say I don't know and it's gone up ~25kw since I started tinkering lol. It IS interesting how the shorter ratio gears I have aren't scaled right on this dyno - 6840RPM is 199KMH, not 175KMH. I have also seen other printouts here with cars with less mods at much higher "kmh" for their RPM due Commodores having 3.45's or longer (!) rear diff ratios maxing out 4th gear which is the 1:1 gear on the T56. Does this matter? No, not really. The real answer is go to the strip and see what it traps, but: I guess I should have gone last Sunday...
×
×
  • Create New...