This engine is rated no stronger than the old OS .12 CV. Plus, the spd likes to run really hot. You might as well buy a cvr and go the extra distance.

This engine is rated no stronger than the old OS .12 CV. Plus, the spd likes to run really hot. You might as well buy a cvr and go the extra distance.

what truck do you have
what engine do you have ?
have you changed the tire size?

i run a 15 on close track
i have a15,16,18,20

i havent seen any upgrade spur gears for the xxx-nt exept the kevlar one

iwish they would come out with steal gear tho

Running the .12 spd in one of my Associated GTs. My other engines are AE .15s, and I also have an OS .12 CV. I have tried different tires. Not much difference, except when I put the road rage tires on for running on the street, the truck seems to have more bottom end with those.

yeah but i would much rather burn a spur than burn a gear in my trans
if yiu have a metal spur than you will just break other parts when your truck goes wot and dosent move (like when you hit a tree)

lol yea

i had the spd in my nitro mt for the sole purpose of bashing. it was damn cheap and i heard it is a good motor for the $$. i just wanted it to replace the all time worst engine known to man (nitro star .15FE). more highend, kinda lacked midrange but had enough lowend. and it lasted me 7 gallons compared to my FE which lasted 1 1/2 gallons. and was much more reliable, and quite easy to tune. i hooked mine up with a t-maxx big tube header and a gt pipe. wow what a difference in lowend. i ran mine with a 11t bell. it was geared mainly for acceleration. took off like an electric ST.

its an ok engine, but its also well dated. Hopefully there isnt a glitched double post like the forums have been doin to me lately