I am in the process of fitting an s2000 engine and sequential gearbox in a Westfield .It will be fitted with itbs and a dry sump system , (itbs from Jenvey, dry sump from RED).As i will only to need to use one belt pulley to drive the dry sump pump ,can i delete the crankshaft pulley/damper,and not incur any balancing problems ,harmonic or otherwise with the crankshart, engine etc? regards.

 

Hi there, Presume you are looking at John Beatties system?

I have also gone for his engine work, ecu etc although decided not to bother with the dry sump as mine was going into a S2000..

nOT SURE ABOUT THE DAMPER BUT I HAVE REMOVED THE aC COMPRESSOR & STD WATER PUMP..

PM TO DISCUSS THINGS FURTHER as not many running mods to the extent you are on here

cheers


Lowell

 

Could you please post more info about the dry sump in the Racing and Competition forum?

There are a few chaps considering one, although I am not sure they are aware there is already a kit available for the S2000.

 

dry sump?

 

As opposed to the wet sump we get from the factory.

 

You should have a word to chris_barry in the Aus forum. He's building an F20C powered PRB Clubman with dry sump.

http://www.speedracersportscars.com.au/PRBS2K.htm

 

My crankshaft loves to go go swimming. They regularly hold pool parties and sometimes even the rods come out to play. There's fun to be had by all.

 

your sarcasm is getting really old now(all of your posts are sarcastic). please stop.

 

Not sure about the F20C and harmonics but my experience is that you should not remove the harmonic balancer on a 4 cylinder motor. The exception seems to be where you use a race crank designed to run without a harmonic balancer.

The Harmonic balancer is used to top torsional "ringing" of the crank. The crank is dampened at one end by the flywheel, but the front is undamped. Its a bit like a tuning fork. The fork will ring when struck with the ends of the fork vibrating. Put a lump of blue tack on the ends of the forks and it stops ringing. A harmonic balancer does much the same thing.

Without a balancer the harmonic vibrations can twist a crank a truckload. I've seen Nissan straight 6 motors with almost 10 degrees of crank twist due to harmonics. Eventually the bending of the ringing breaks the crank.

With Toyota 4age's the crank will break in as little as 2 hours if you remove the harmonic balancer.

There are some motors (ford focus) seem to run fine without a harmonic balancer though they do tend to vibrate alternators and the like more without one. Maybe the F20C will be OK. The question is whether you want to destroy a crank finding out.

I would suggest building a spigot to put the dry sump drive belt in front of the harmonic balancer.

Speedracer.

 

Here's a quick explaination of a dry sump.

http://auto.howstuffworks.com/question331.htm