ring 21 prop?? - Page 2

gar163y · 23-06-2012, 09:35 AM

Quote:

Originally Posted by Ringmaster

Chopper!!!! Have you tried one yet?!?

Yeah right!

andy456 · 08-09-2012, 08:40 AM

Quote:

Originally Posted by Ringmaster

Chopper!!!! Have you tried one yet?!?

Ran the boat yesterday and got 66.8 with the 3 blade laser2 with it only pulling around to 5200rpm got a 4 blade trophies 24 to try next

Phill_Dewe · 08-09-2012, 09:22 AM

what gearbox are you using if it is a standard one i cant see you finding much more speed and using a 24 four blader may be too much for the 2.4 to handle. i used a 24 chopper on mine with a 2.5 200 and i got 68 mph at 6200 rpm but i have just tryed a 24 raker 1 and i got 72.2 mph at 6100 rpm so if you can find a raker that has been machined for a merc shaft that could be worth a go.

andy456 · 08-09-2012, 09:30 AM

Mine has a std gearbox motor seems really strong so not shore it's std 2.4 but doing well as its making that speed with only 5200rpm!

marky63 · 08-09-2012, 01:04 PM

Quote:

Originally Posted by gar163y

Has anyone tried a Merc Fury prop on a R21? They don't come up second hand very often because they're still a bit new but in comparison tests they seem to be a little bit better in all aspects than the Tempest.

hi ive got a fury 26 on my p21 it runs 74s mph at 5800 5900rpm very happy with it runs well in the chop too hope too see evrey one out sunday then happy days.

andy456 · 08-09-2012, 03:15 PM

74mph that's a quick boat! Just can't seem to get it to pull past 5300rpm what should a 200 2.4 rev too?

marky63 · 08-09-2012, 04:12 PM

Quote:

Originally Posted by andy456

74mph that's a quick boat! Just can't seem to get it to pull past 5300rpm what should a 200 2.4 rev too?

hi andy mine is a worked 2.5 but when it was standed it was reving 6100 too 6600 on a laser 2 then i had a tempest 23 got it too about 6000rpm the tempest is a good alround prop too.but with a 2.4 your revs should be up there too there abouts.

andy456 · 08-09-2012, 05:16 PM

I'm wondering if I have a faulty rev counter as the figures don't work out with revs,prop,and speed its doing.flat out it will only go to 5200-5300 max? I was told should go to around 5800 but never seen that.

gar163y · 09-09-2012, 12:32 PM

Quote:

Originally Posted by marky63

hi ive got a fury 26 on my p21 it runs 74s mph at 5800 5900rpm very happy with it runs well in the chop too hope too see evrey one out sunday then happy days.

I think a Fury might work so I'll keep looking out for a second hand one. I intend to have my Tempest thinned, sharpened and balanced at the end of the season. That should pick up a few revs and then I can afford a little extra cupping for some more lift.