Jump to content
SAU Community

Harmonic Ballancer For Rb30det (gtr Or Rb20)?

sky30

By sky30,
in Engines & Forced Induction

 Share

Recommended Posts

sky30 Mentor

sky30

Posted
Posted

Has anyone got any idea if a RB26 harmonic ballancer is better suited to use on my RB30det compared to using a RB20det ballancer.??

THe RB26 ballancer is a bit bigger and has more weight to it when comparing to the RB20 one.

What are peoples thoughts??

Adriano Grand Master

Adriano

Posted
Posted

I would recommend a good aftermarket (ATI) rb26 balancer if you want the thing to have a chance of staying together at those revs, the heavier dampner will do a better job of getting rid of harmonics fromm teh crank which is one of the suspected causes of oil pump failure.

STATUS Grand Master

STATUS

Posted
Posted
I would recommend a good aftermarket (ATI) rb26 balancer if you want the thing to have a chance of staying together at those revs, the heavier dampner will do a better job of getting rid of harmonics fromm teh crank which is one of the suspected causes of oil pump failure.

yah funny you should say this, i was speaking to the some jap guys on tuesday and i mentioned that i was looking for a rb25 balancer to run on cats car to allow me to run r34 r33 gtst pwr steer pump (more crank to rad clearance) but they advised me against it as it is known to increase engine harmonics and oil pump failures.... its seems to be quite a normal swap here.

r33_racer Grand Master

r33_racer

Posted
Posted

ill weigh them when i get home, but i dont think there is much weight difference as such between the ati and a std rb damper.

I think its their internal construction with their rubber rings and whatnot that absorbs more vibration and over a larger spread of frequency and converts that to heat more efficiently then a std one. I think they can make them to suit your motor specifically if they had one to test. I believe they say they can tune them (harmonic/frequency wise) to suit your motor and rev range.

sky30 Mentor

sky30

Posted
  • Author
Posted
ill weigh them when i get home, but i dont think there is much weight difference as such between the ati and a std rb damper.

I think its their internal construction with their rubber rings and whatnot that absorbs more vibration and over a larger spread of frequency and converts that to heat more efficiently then a std one. I think they can make them to suit your motor specifically if they had one to test. I believe they say they can tune them (harmonic/frequency wise) to suit your motor and rev range.

Michael, Im interested to know the weight of the Ati balancer compared to stock if you can weigh it, id be great.

r33_racer Grand Master

r33_racer

Posted
Posted

didnt have time to do it this arvo sorry. Tomorrow after work ill be going to parents house to work on race car. so ill weigh it then and report back. Of snap, i think our machinest has it for balancing with the rest of the bottom end. Dammit, forgot about that. Might be a while before i get it back too. My bad peoples.

STATUS Grand Master

STATUS

Posted
Posted
Michael, Im interested to know the weight of the Ati balancer compared to stock if you can weigh it, id be great.

Saw a nice RB26 POWERBOND balancer thursday at a trade show, 25% underdriven and 4.118kg. They list both differrent RB26 balancers, one for 1991-93 and 1993-on.

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

    • Dose Pipe Sutututu
      Dose's Sometimes DIY and Pay Someone Home & Boat Improvement Thread

      By Dose Pipe Sutututu · Posted

      Wife wanted basket things in the wardrobe in our temporary house. Thought about ripping our the wardrobe and fitting the entire IKEA set, but it's a temporary house and we want to move in a few years. So IKEA advertises this as a 50cm unit, however the actually basket and rails measure 46cm wide. Only issue was depth, IKEA stuff is quite deep, where as the builder special junk is super shallow at less than 40cm. Send it, chopped the rails, then offset the mounting holes, job done, happy wife, less shit scattered all over the bedroom. Did the same to the other side too. Also drove the Skyline shit box today, dropped off oil at Supercheap Auto. I didn't realise they only now take max 2x bottles per visit. I visited 2x Supercheap Autos.  
    • Kinkstaah
      Strange issue RB25DET wont start

      By Kinkstaah · Posted

      I've seen similar actually in my situation. You never know what tables are attempted to be used when the car thinks it's -99C or +200C. The fail state is not usually that extreme but you know what I mean - it was in my case though! This is where being able to read all the sensors is useful cause you see this stuff really quickly.
    • Kinkstaah
      First time Skyline owner

      By Kinkstaah · Posted

      The above is very important. However as long as you keep timing relatively low, it's plausible to make your own knock ears and plausible to learn to tune with a modern ECU that can do wideband O2 correction like a boost controller. I mean if you only have one viable road to even drive the car on, learning to tinker to this level may be worth doing given you can't do much else with the car...?
    • Kinkstaah
      Chris' Toyota Mark ii JZX110

      By Kinkstaah · Posted

      I find the fact that the rear plate has to be bent inwards at the rear not so bad: but the front is just awful: It's like come on. (these are my very old, now retired/turned in plates) TBH it is a lot of money to fix a minor issue, the fact I said "I'll never really spend the money on doing this" is why people ended up buying them as a gift for a 'car guy' who can be hard to shop for.. for car guy things.
    • GTSBoy
      Chris' Toyota Mark ii JZX110

      By GTSBoy · Posted

      I just bent the ends of my premo plates. It even went through Regency like that after the engine conversion and the inspector (a great bloke!) just squinted his eyes and said "I didn't see that". Plates, and how they look, are just something that have zero importance to me.
×
×
  • Create New...