im running a 35gdsd with heads rockerrollers mukuni carb and evt exhaust ... im looking to get a little bit more speed out of her im running the stock 34 tooth right now turning up 4400 with new prop i just ordered a 36 tooth for it i was told it should bring my rpms down to 4200 and give me another 200rpm at the wheel......any good imformation will be appreicated ..

i think yall mean pullys... not gears

Gay ass go slow devil thread, best thing to do is sell that piece of shit and buy you a real upto date motor! Pulley's are for pussies!

bayou fagg i cant piss u off because u gotta change it out for me and ummm how many times has that peice of shit broken with over 700hrs on it?

robn i bought the "pulley" from coco at go-devil it cost me $90 he said it should help me but hes not for the upgrades on the motors lol......

hey bubba teets i didnt ask about u about a prodrive ur on the wrong thread buddy

It's a pulley. Not a sprocket or gear you fuckkstickss

i hope ur clutch goes out right after ur trim as$hole

Man frik all these fukin prodrives keep smokin my ass .....in my jared!! voice

DB,

In his opening posts he said he had gotten a 36 tooth replacement from GD to change out
from the stock 34 tooth - do you have the math on those pulley ratios handy ???

Can anyone verify what the pulley tooth count on a stock 35 GDSD is for each pulley ???

I'm unsure but guess the stock setup is 48 / 34 @ 1.411
if that assumption is true then 48 / 36 = 1.333
or roughly a 5 % change like your example

5.8% difference from 36 to 34
So if he is running 4400 RPMs and swaps the pulley (I assume Upper pulley cause the lower pulley is usually bigger) from a 34 to a 36 he will drop Approx 5.8% in RPMS which turns out to be 4,144 RPMs Roughly.

Making the top pulley larger is the same concept as making the bottom smaller... The closer you are to 1:1 ratio the more load you put on the motor and the Faster the prop will spin in relation to the crankshaft RPMs.