usdsk8er540
Well-Known Member
i didnt think it was 21 at the rear wheels, since i got up to about 25hp after the build (before everything got broken in, might be more now, but if so not much more). i know i didnt double the stock hp with those mods, id probably have to do a 400 stroker kit to do that. that all gear run is just peak hp, not really usable. its shifting through the gears and hitting it pretty hard. the normal, usable hp is running in one gear (probably second or third) and sampling on the dyno. that turbo kit would be fun if it didnt look like crap. ive seen one done on a different quad (dont remember what kind, might have been a rappy 660) that was done much better. google something like "atv turbo kits" and you might find it.nobody uses peak, it's not a true measurement of power. From what I can understand/figure out, those spikes in the dyno chart come from the engine building up momentum between shifts, and hitting hard in the next gear. Just like if you rev up the engine on a car and drop it into gear it'll launch quicker because of the engine and flywheel's rotational momentum.
I think the actual power of a stock one is 21 at the output shaft, 18-19 at the wheels. You definitely didn't double stock horsepower with the few mods you have.