Reply With QuoteGeez, suzuki must have made crap 2 strokes.Originally Posted by TCSunCoast
No wonder they stopped.
Scott
Just an update, Trialled another prop on the weekend, the turning point, haven't been able to get hold of a 20 pitch Merc prop as yet, might see if I can ring another dealer tomorrow, any suggestions of a merc dealer on the south side?
The TPP prop really laboured the engine, and went no where near redline.
by the way falls of the plane at 24 kms. Have got to say, there doesnt seem to be anyway this engine is able to swing the 21, I would be frightend to cross a bar with it, particularly around the amount of time it takes to get the boat on the plane. I have another solas to try, 3 blade but wont get to it to the weekend.
Turning point 14*21
1000 6.9
2000 11.8
3000 16.2
4000 38.5
5000 51.4
WOT - 5700 58.2
Hole shot > 5 seconds
Suzuki 13*21 - 3Blade Speed
1000 5.5
2000 10.3
3000 15.4
4000 33.3
WOT 59
Hole shot > 5 seconds
Suzuki 14*19 - 3 Blade Speed
1000 5.5
2000 10.3
3000 15.4
4000 33.3
WOT -6100 59.6
Hole shot 2.4
Solas 13 7/8*19- 3 blade Speed
1000 6.5
2000 10.7
3000 15.3
4000 32.2
5000 45.7
WOT -61500 60.5
Hole shot 2.2
Solas 13*21 - 4 blade Speed
1000
2000 9.4
3000 13
4000 21
WOT N/A
Hole shot N/A
Solas 13*19 - 4 blade -uncupped Speed
1000 6.4
2000 11.3
3000 16.4
4000 35.3
5000 48.2
WOT-6000 60
Hole shot 2.2
Regards
Honda
Geez, suzuki must have made crap 2 strokes.
No wonder they stopped.
Scott
Evinrude = Ficht
No need to bring other brands into it Greg.Evinrude = Ficht
I was just making an observation that it a manufacturers 4 stroke blows away their equivalent 2 stroke( although some of suzuki's HP rating's are debatable)then might be time to give up....apparently they agreed.
scott
Interesting comment - I would like to see any shred of evidence about the hp rating being less. Lots talk about it but it is hearsay - no evidence just a bit more internet canon. Ive seen CARB tests on Zukes and they put out the hp @ stated rpmNo need to bring other brands into it Greg.
I was just making an observation that it a manufacturers 4 stroke blows away their equivalent 2 stroke( although some of suzuki's HP rating's are debatable
scott
Hey mate that 4 blade solas 13x19 seems to give you the best cruising speed, how accurate is your info? I'm looking at getting one of those for my next prop.
Cheers
Luke G,
All the info is measured on GPS speed, same location, so is pretty accurate for my boat (trimmed before measuring). Not only was it up there for cruise speed still a fair bit down on the Yam but the fuel consumption (Lowrance fuel sender unit installed, only displays in gallons).
So the fuel consumption for the 4 blade @ 4000rpm is 4.5 Gallons p/H, At 4200rpm the fuel consumption jumps to 5 gallons an hour. The Yam @ 4000 was 7.4 Gallons per Hour and at 4200 rpm 7.8 Gallons an Hour.
The fuel consumption while testing has also been measured with all the 3 blade 19's around the same figures. The 21s have been in the 5-5.5 @ 4000 and up to 6.3 gallons per Hour range @ 4500rpm.
1 gallon = 3.78 litres.
Regards
Honda.
Thanks for that mate.
At he end of the day the dealer who re powered it should have water tested and fixed it before you pick it up that is what we pay them big bucks for.
Doing a bit more digging it appears that the gearbox ratio change has made no difference at all.
http://www.romseysac.com/equipment/b...gine/df140.pdf
Does anyone know when they change the box ration to 2:59:1?
Regards
Honda.
The sept 2006 models had the revised gear ratio
Garry
Retired Honda Master Tech
They changed it in early 2007 you should have the new model.
Just an update, been away with work so havent had time to do any more testing.
Turning point 14*21
1000 6.9
2000 11.8
3000 16.2
4000 38.5
5000 51.4
WOT - 5700 58.2
Hole shot > 5 seconds
Suzuki 13*21 - 3Blade Speed
1000 5.5
2000 10.3
3000 15.4
4000 33.3
WOT 59
Hole shot > 5 seconds
Suzuki 14*19 - 3 Blade Speed
1000 5.5
2000 10.3
3000 15.4
4000 33.3
WOT -6100 59.6
Hole shot 2.4
Solas 13 7/8*19- 3 blade Speed
1000 6.5
2000 10.7
3000 15.3
4000 32.2
5000 45.7
WOT -61500 60.5
Hole shot 2.2
Solas 13*21 - 4 blade Speed
1000
2000 9.4
3000 13
4000 21
WOT N/A
Hole shot N/A
Solas 13*19 - 4 blade -uncupped Speed
1000 6.4
2000 11.3
3000 16.4
4000 35.3 17.0 LPH
5000 48.2
WOT-6000 60 33.0 LPH
Hole shot 2.2
Solas 13 7/8 * 21
1000 6.5
2000 11.5
3000 16.5
4000 36 18.9 Lph
5000 52
WOT 5800 60.8 35.5 Lph
Hole shot > 5 seconds
I have given up on the 21 pitch props, More that 5 seconds to get on the plane, is plain dangerous, I have to cross a bar everywhere within a 100kms of where I live in Brisbane so that was an easy decision. I also found the fuel consumption for the 21’s to be excessive compared to the 19’s, still trying to get hold of a Mercury 20 to test.
At the ramp the other week, I pulled up behind a bloke with a Suzi 140 on the back of a freedom sport 6m offshore, jumped out and had a chat to him, was interesting to see that he had the 13*19 solas 4 blade on the boat as well, he was getting the same speed in the rev range as I was, even the same top speed.
Regards
Honda
Interesting figures, the 4 blade sure shows it's form when uncupped almost no-one runs a 4 blade well on a mono, I keep saying here cup on our rigs is like throwing money overboard every hour on the hour.
You can do much better but you will need to think outside the square, I know it's more typical to just pick a bad prop from a crop of bad props and hope for the best, suzuiki did no favours when they changed leg ratio.
IMO when you are ready for an end point, find yourself a 3bl true 20P even a 21P possibly? (aluminium even will do better than those above) decup it, then tip it until your max rpm is reached and be happy with the new found performance and fuel savings.
cheers fnq
Last edited by FNQCairns; 11-03-2008 at 07:35 PM.
Mate you seem to be having really bad luck with your setup
My setup is very similar to yours, boat weights about 700-800kg + engine and equip, we usually have 2-3 people on board and with the standard alloy prop, without the bimini targa we hit 50-55mph, and with the targa and clears on we hit 45-50mph both at 6000rpm.
Have recently baught at new ss prop and will be testing it over the long week end, should be interesting to see the difference.
Posting Permissions
