Roller drop gear.
Turbo Mini Forums

if your using a SC gear set just use helical drops fitted with new idler gear bearings,

its been well proven by many they live and are inherently quiet,

If someone wants to quieten down the drops, settin up an oil spray onto the gear flanks about 30-50mm before the mesh will quiet it down noticably. Don't direct the spray into the mesh however.

I have fitted the latest MED roller drops (0.95 ratio not 1:1 though) and am plesently supprised about the noise.
I was expecting it to be really noisy but it isn't. In fact it greatly enhances the enjoyment of driving the car
I only use it at weekends on back roads so maybe not ideal as everyday transport.

Double post woops

Edited by matnrach on 13th Aug, 2013.

I forgot that Ive diverted the oil releif vailve out of the end on the block rather than straight down, so my drops should be getting more oil.

I have the med rollers bearing drops and have been good for several years. I did change the roller bearing last year as a precaution. As for noise I can't really comment as my car is noisy anyway!

Ron

Great! Lateral. Thinking Joe,..... and as Dave says,

Have you any pics joe? Of the mod

I have started posting on Instagram also my name on there is turbomk1golf

Nothing is impossible it just costs more and takes longer.

I've got a minispares sccr ST gear set in mine with helical drops and its great, just a bit of a whine in 1st 2nd and 3rd then absolutely silent in top gear........best of both worlds.

So I have been searching and so far I have found that the minispares 22 tooth primary Is loud so that gives me the choice of-

From the MS Evolution gears:
24 tooth primary - 30 tooth idler - 24 tooth input = 1.0-1
23 tooth primary - 30 tooth idler - 23 tooth input = 1.0-1
24 tooth primary - 30 tooth idler - 25 tooth input = 1.0416-1
23 tooth primary - 30 tooth idler - 24 tooth input = 1.0434-1
23 tooth primary - 30 tooth idler - 25 tooth input = 1.0869-1
24 tooth primary - 30 tooth idler - 23 tooth input = 0.958-1


Now they say that the 23 tooth primary gear is the strongest.

so my next bone Question is what is the ups and downs to the different set ups any.

I am on 10" wheels with a 3.1 CWP.

I have started posting on Instagram also my name on there is turbomk1golf

Nothing is impossible it just costs more and takes longer.

I have a 3 year old set of mini spares ones engine has been rebuilt/checked twice as it does 2 or 3000 hard miles every year, and they are so noisy as sin ! hate them but builder say their in spec and they are all like that

James

I love the noise

Edited by Brett on 14th Aug, 2013.

Yes i moved to the darkside

Instagram @jdm_brett

Dazed and Confused....

I'd be interested in this mod too.

If something is worth doing, it's worth doing half of.

there are pictures of it on here guys go search

Yes i moved to the darkside

Instagram @jdm_brett

Not managed to find the thread but a basic setup would be an adjustable oil pressure regulator with the adjuster replaced with some air equip hose appropriately located for the desired end result. Inspired thinking dear I say genius :)

Edited by Mr Joshua on 15th Aug, 2013.

Own the day

I cant find pics of mine, but essentially I just bunged the drain hole that goes downwards from the oil relief valve and redrilled it from the side, its literally a peice of piss to do, if you wanted you could put a 90 degree fitting (non restrictive!!) just to roughly point it toward the gears, but I didnt.

Tempting on my next motor.

If something is worth doing, it's worth doing half of.