Harmonic Ballancer For Rb30det (gtr Or Rb20)?

[sky30]

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??

[R31Nismoid]

You know what we are gonna say ye?

Read the sticky!

[sky30]

You know what we are gonna say ye?

Read the sticky!

There is nothing in there to really say that either one is of any greater benefit.

I want to rev the engine as hard as possible, like 7800-8000rpm.

[Adriano]

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.

[Gts-t]

I have been looking at this, i have noticed Just Jap sell the Ross ones for around 600.

Anyone used one?

[sky30]

Are the ATI, or ROSS balancers any heavier than a Stock RB26 one?

[STATUS]

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.

[Buckyuk]

Where is the sticky??? I am after one of these.

[r33_racer]

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.

[mambastu]

the Ross RB25/30 damper is 3.5kgs, not sure how that compares to a standard RB25 or RB26 pulley ?

Edited June 14, 2007 by mambastu

[sky30]

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]

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.

[sky30]

So what are people revving their RB30det to??

1. Using a stock type Harmonic ballancer?

2. Using an Aftermarket Ballancer (eg ATI, Ross etc)?

[STATUS]

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.

[rev210]

The Ross units are about 2kg less than the factory unit.

[Buckyuk]

Wheres the cheapest place to get an RB26 balancer??? I want one.