prop size....

racingricka87

took the 192 out last week to see qhat she can do. 53mph at 5300rpm it has the 4.3lx. I was unaware of the max 44-4800 rpm but anyhow I am going to be adding smart tabs...plastic vs metal ones any input? I would also like to reprop to get in that rpm range I have a 21 pitch 3 blade aluminum now what would be good a 23 pitch? how about if i went with stainless steel? thanks for all the knowledge

Black_Diamond

Every inch of pitch moves you ~200 rpm: so going from 21" to 23" would reduce the rpm by 400 prm.

I would definately use metal tabs, Lenco has a simple set up that is all electric.

racingricka87

now what about a stainless prop? so a 24 pitch would put me around 4700 rpm with a aluminum prop?

racingricka87

how would a stanless 14.25 26 pitch run three blade? found a nice used one........

nhsd

If I were putting Smart Tabs on a 192, I would go with the black plastic set - I have them on my 212. For your RPM and MPH measurements did you use the boat's gauges or GPS (for MPH) and a good tach (clip on type maybe)? I only ask because the boat gauges are typically inaccurate (especially the speedo) and I wouldn't want you making decisions from bad data. Those RPMs and speed seem rather high to me for that 4.3, but I am no motorhead. I seriously doubt that you want to put a 26 pitch prop on that boat.

racingricka87

i did check gps on phone it was about 1-2 mph different then dash. Didnt haveaway to check out the rpm but am planning to purchase a hour meter with tachometer