Haines Hunter 600 Classic with 175 Etec

[devendiva]

I have bought a new Haines Hunter 600 Classic fitted with a 175 Etec. I am after some advice on prop size and engine height. The motor only has 3 hours on it and at WOT I am seeing 5050 rpm and approx. 35 knots.

Does this sound about right? I am being told different info from various dealers regarding what max. rpm and speed I should be seeing. I am also getting different advice regarding prop size and engine height.

The Etec has 14 3/4 x 17 Viper prop and is in second lowest position on transom. One dealer is telling me I should be running 19 pitch prop but to my thinking this would lower rpm. I am being told 5300 - 5500 rpm is the optimum for the Etec. They reckon I should be seeing close to 40 knots.

Another dealer is telling me to go down to a 15 inch pitch prop. Both dealers are telling me to mount the Etec at the highest position.

Can anyone give me any advice?

[Outsider1]

Hi devendiva,

firstly, congratulations on the new rig.

Others will be much better able to answer your specific prop and mounting questions, but I can give you some comparatives with my boat, a Cruise Craft 580 Outsider and a new E-tec 150. I am getting 5400/5500 rpms at WOT throttle and 39knots on an antifouled hull. Only have basic hours on mine too. The 150 and 175 are pretty much the same motor so would expect the same WOT throttle rpms and similar hull performance.

Hope that helps.

Cheers

Dave

[Wirrah]

Have had a few boats and each time was advised that the cavitation plate should be level with the bottom of the v in the hull. It would only be set lower than this in order to try to correct cavitation problems. If the leg is set too deep this can have a marked effect on top speed. The position it should be set on will vary from boat to boat of course. I don't know about the Etec, but the Optimax 150 ran on a different mix for te run in period and the dealer advised that I would notice a change in performance when the run in period was completed. I know that the manufacturers claim that the Etec does not need running in, but I wouldn't, be doing too much full throttle work until I'd run up 10 or fifteen hours. When you have the leg at the right height and the engine is run in, then you should be aiming for at least the bottom of the maximum RPM range. You should be able to get technical advice about how many RPM extra you will get for each 1/2 inch reduction of pitch . Good luck

[Jabba_]

Hi devendiva,

firstly, congratulations on the new rig.

Others will be much better able to answer your specific prop and mounting questions, but I can give you some comparatives with my boat, a Cruise Craft 580 Outsider and a new E-tec 150. I am getting 5400/5500 rpms at WOT throttle and 39knots on an antifouled hull. Only have basic hours on mine too. The 150 and 175 are pretty much the same motor so would expect the same WOT throttle rpms and similar hull performance.

Hope that helps.

Cheers

Dave

What prop and dimensions are you running

[Spaniard_King]

What prop and dimensions are you running

Jabba if you read his post you would see he quoted The Etec has 14 3/4 x 17 Viper prop

devendiva can you post a pick to show us the level of your cav plate??

[devendiva]

Yes I'll take a pic or two tomorrow and put them up if I can work out how. In the meantime, I have contacted both BRP and Haines Hunter today. BRP haven't replied yet but HH were very receptive to my concern. No action yet, but they have committed to get the BRP rep in my area to contact me to organise to play with props etc. This is very encouranging as I bought the boat on the Gold Coast and towed it 1100 kms to Mackay so its a bit hard to take it back to the dealer to play with. I'll let everyone know what HH come back with.

Looking at the BRP website today, the Etec makes peak horsepower at 5350 RPM, so mine only getting to 5050 RPM is definitely not making peak horsepower.

[devendiva]

Oh I meant to say, thanks to all who have replied also. It has definitely shown me that there is some issue, just have to nail it down now.

[charlieash]

if you take the motor up one hole you should pick up 200 - 300 rpm vipers are designed to run high . you dont want it to high as this will effect you off shore . dont be to concerned about old mates cruise craft stats as they have a completely different rear hull design . as for a 19 pitch thats just going to make matters worse. try taking up a hole youll be amazed what diferance it can make

[OceanSpirit]

I would the say the propeller is spot on, but the engine needs to be lifted as outlined above.

[Reel Blue]

I have a HH 650 Classic with a 175 etec. Originally it had the 14.75x17 viper and would pull 5100rpm lightly loaded at WOT and 36knots. I took it back to my dealer and the motor was not reaching full power requiring some throttle adjustment. The motor was also raised to the highest position available and I currently have a 15x15 prop that will spin to 5700 rpm lightly loaded. With a full load on for offshore fishing it will pull about 5500rpm. With this new prop it will cruise at 4000rpm doing 24knots and consuming 26 litres an hour. The top speed is down to about 33knots on GPS depending on whether you run with or against the current. I have also tried the Rebel 15.75x15 prop but it would not achieve high enough revs either being quite aggressively cupped. (5100rpm)

I don't know if there is a better prop out there but the boat with the BRP 15x15 has an excellent hole shot, great acceleration and economy seems good and the motor will have to be working a lot easier than with the orginal prop. If I went up in pitch to say a 16 or 17 I would have to reduce the diameter to maintain the higher RPM.

The cavitaion plate is slightly above the bottom of the hull but I have had no issues at all with ventilation unless putting the boat into a tight turn with the motor trimmed out. This is how it should be and I believe the deep v of the hull allows for a higher motor setting than say a shallow v tinnie.

I would be intersted to hear how you go particularly with advice from BRP or HH.

[Getout]

I've got the same motor ands prop on a 625 Outsider. I tried a 151/2 x 17 Rebel, but prefer the Viper.
I get about 38kts at 5250rpm with either, but the viper runs better, higher on the transom (one hole) without cavitating, so I can use more out trim and get a better ride. Particularly in a following sea.
I played around with the motor height a bit and found that the original prop and height setup provided by the dealer was best for my application. (mainly offshore)
If I was running in flat water most of the time, I would consider swapping to the Rebel because it appears to give a little more speed and economy at cruise revs.
If I were you, I'd keep lifting the motor, a hole at a time, until cavitation becomes a problem. You don't want the motor mounted any lower on the transom than it needs to be.

[devendiva]

Guys,

Here's the latest update. I haven't been able to get a photo of the transom yet but the cavity plate is currently already above the bottom of the V.

Having said this, I have been speaking directly to Haines Hunter and BRP and they have been very good where the dealer has been slack. They have advised that prop should be right but motor is definitely 1 hole too low.

I have the boat booked in to get it raised and we'll see what difference that makes.

I had the boat out on the weekend to get some before and after RPM / top speed figures but couldn't get anything good as it was a bit choppy. Not sure if anyone knows the type of water he have up here in Mackay but the waves although not very high, are about the same distance apart as they are high. Sure makes it a bit bumpy.

Anyway, the I-Command gauges have a "throttle percent" reading. When I have the throttle flat, it is showing 85%. I thought this should have shown 100%. There is another reading that shows engine load. I am not referring to that gauge, just throttle percent and I would have thought that should relate directly to a throttle position sensor and flat out shoudl be flat out regardless of engine load or any other factors.

When I took the engine cover off I noticed that the throttle linkage has quite a bit of movement left. Is this just throttle cable adjustment that has not been done correctly?

So by the time I get the engien raised, and this thing hitting full throttle, it might actually perform like it should.

[devendiva]

Here's the latest. I have had the boat in at the local Etec dealer all week for three things: 1. Raise the motor one hole 2. Check out an "injector failure" warning I get almost every time I start the motor and 3. adjust the throttle cable so I get full throttle opening.

I was advised the boat was all finished and ready to pick up. I asked if it had been water tested and it had. I asked what RPM I was getting now (5050 RPM before) and he advised 5050 RPM. What the?

Engine has a new EMM as they couldn't fault any injectors. They reckon engine had been running on 5 cylinders intermittently due to the injector fault being reported. New EMM has apparently resolved this issue. Apparently BRP want the old EMM down in Sydney asap so they can check it out.

So I don't see how if the engine has been raised a hole, I am now getting about 5mm more throttle travel and now firing on all 6 cylinders and its still doing only 5050 RPM ie. exactly the same as before!

This engines (2008 model) optimum RPM is around 5500 - 5600, so at 5050 I am not reaching maximum HP. I have asked the question but no-one can answer me. Considering that the exact same 5050 is being reached after all the work, is there any chance these thngs are limited to approx 5000 during a "run-in" period ie. during the double oil period? No-one can tell me how many hours the double oil period is either. Some say 2, some say 6 hours. The motor would only have about 4 or 5 hours I guess.

[Taroona]

From what I have been told the double oil period is determined by the EMM and is for a period of time of around 10 hours after the motor reaches 2000 RPM. So double oiling doesn't occur under 2000RPM.

Les