Jump to content
SAU Community

New Lightweight Flywheel

Bass Junky
 Share

Recommended Posts

ferni Grand Master

ferni

Posted
Posted

benm - there is a video of a mines GTR going around the track driven by jap drivers going "holly shittt this is fast" "too fast"

the response on it is crazy... That car has a lightweight drivetrain...

ie light wheels, light flywheel, carbon propshaft etc.. anything in the drive train lightened to help increase response

i also remember sydneykid and someone else talking about the benifits of lightening certain parts of your drivetrain, and what benifit each has - its in here somewhere :P

Bass Junky Grand Master

Bass Junky

Posted
  • Author
Posted

Roy.

by more "Race" I mean that when you change gears, the revs drop quicker, and whe you get on the gas, there isn't any surge from the engine which previously had to slow to match the road speed.

It's a bit hard to understand, but it does sound much cooler.

FURTHER REPORT

In wet weather, once the car breaks traction, the revs rise heaps faster, so you have to be a little bit more alert; but they also drop quicker, so removing your foot from the pedal stops the qheels spinning heaps quicker also.

BASS OUT

  • 2 weeks later...
bean_8044 Rookie

bean_8044

Posted
Posted

I dont think you can see much of a difference if you could lighten up the auto flywheel. The auto flywheels arent like manuals since theyre just mounting points for the torque convertor and ring gear. The torque convertor by itself is very heavy and on top of that its filled with ALOT of fluid.

2rismo Grand Master

2rismo

Posted
Posted
One problem with the flywheel is it is only around 8mm thick at the clutch face so it overheats very fast so be careful what you use your car for.

Do you know whether certain materials are better than others in this regard? i.e. Chrome-molly, Billet Steel etc?

Adrian

rev210 Grand Master

rev210

Posted
Posted
Do you know whether certain materials are better than others in this regard?  i.e. Chrome-molly, Billet Steel etc?

Adrian

A single billet flywheel is going to be very strong and not significantly effected by heat vs it's strength. A multi material flywheel like the one shown might have issues with different expansion rates but, the few race aluminium ones that I have seen never had a problem.

The chromemolly ogura 4.8kg is 400% stronger than the factory cast iron one.

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

    • GTSBoy
      Boost cut after swap(RB25DET NEO) R34

      By GTSBoy · Posted

      Don't even try to run it on the stock ECU if you're going to have the boost controller bring boost above ~10 psi. I've already told you that. If you use the Nistune ECU, you will need to CAREFULLY read the available documentation for Neo tuning, and read some threads on the Nistune forums, to discover the various things you have to do to prevent the ECU from going bananas when the boost is too high. The is a table associated with th boost sensor that must be modified to prevent it from shitting the bed. This is just one of the things that you will need to do to the tune in Nistune, because the Neo turbo ECU will be expecting to see a number of things (such as the TCS) that are not there, and you have to block the DTCs on those. It is totally not surprising to me that you are having the problems that you are, but the solutions to these problems have been known for >15 years. So just get it done.
    • dyl33
      VOLK RACING GTC CENTRE CAPS

      By dyl33 · Posted

      Centre caps $250
    • Kapr
      Boost cut after swap(RB25DET NEO) R34

      By Kapr · Posted

      Hi. Sry iam not a mechanic and iam not at the car atm so i dont know 100% but they told they measure those and even try to change those. AFM they have two. Coils are new a they have my old one too. Plugs too. ECU...we have 25 NEO stock and Nistune 25 NEO.   But i dont know if any one those could be the problem and why/if/what can cause this, Only thing they did not check is fuel...but that walbro 255 is new(like 1,5 years)... That fuel pressure gauge idk...but i let them know Any suggestions?   EDIT: how can they know if it is like you say he ECU pull power when it reaches a specific boost level that is too high? Tha car has boost controler
    • Duncan
      Boost cut after swap(RB25DET NEO) R34

      By Duncan · Posted

      Can you clarify what you mean by boost cut, do you mean it misfires both when under load (driving) and when stationary and out of gear? Or does the ECU pull power when it reaches a specific boost level that is too high (boost control issue)? Does it occur at idle with no throttle? When you say "the ECU is OK", what ECU is it and why do you think it is OK? Have you used the NEO ECU, and if so do you have a MAP sensor attached? Same for the AFM, why do you think it is OK? Do you have any way to put a fuel pressure gauge on it (even just a mechanical one between the fuel filter and fuel rail)?
    • Kapr
      Boost cut after swap(RB25DET NEO) R34

      By Kapr · Posted

      Hi.. Just another problem. So maybe you can help. I(my mechanic) done swap from my RB20DE NEO to RB25DET NEO. Everything is OK but we have a boost cut. Coils/Plugs are ok...AFM is ok. ECU is ok. I have Walbro 255 but it "changed" sound few months ago(you can hear it ouside) you did not hear that when it was new(maybe faulty?) Sooo...what now? What can cause this boost cut? It is even when you standing still...
×
×
  • Create New...