Put new 20p 4x4 Hill Marine Props on this morning.. 2004 Fiesta Vee 270 w/ 383

J3ffJ3ff Posts: 1,108Member ✭✭✭
Decided to swap props while on vacation with the boat...
(Edited now after test run) 

Just getting this out of the way for future visitors:

2004 Fiesta Vee 270 with a 383 Fresh water cooled engine.

So it's a completely different feel to the boat and the ONLY regret is that the props weren't installed before the 8 hour trip was made on it last week. 

First of all, there didn't use to be ANY push back in the seat feeling when the 3 blade 22p were installed. Now, there actually is a slight/decent amount of feeling as the boat speeds up. 

The first time I hit the throttle all the way it roared to life, MUCH faster rpm climb than usual (expected this)..

The surprises are:
There used to be a low noise as the boat sped up, kind of a groan, but it was there when the boat would be speeding up, transition to being on plane and then when you let off to maintain speed it would lighten up.  This noise is completely gone. 

Not only that, but both mother and sister made observations that the engine is noticeably quieter (ie. not working as hard as it used to be doing..) We can actually have a conversation on plane now, before the motor would be roaring to keep the boat on plane (25.5 or so mph or more).  

Speed to stay on plane has dropped considerably!

This was pretty much the edge of dropping off plane.. it could consistently stay on plane at 20, I've NEVER been able to do that. 


This was just another data point, so 100 RPM seems to be a 1.5 mph difference


so another 90 rpm gained 2 mph at this speed:


I have to look back at my other results, but pretty sure that this is almost the same rpm's  for 28mph. 


However, what these results can't possibly convey is how much "stronger" the boat felt, first of all I'd seen a couple people talk about the rear of the boat riding higher... well... I think this may be true, but only because there is absolutely NO reason to trim up anymore... at least in the current 1-2 ft waves we were hitting.. trimming up didn't seem to do much but increase noise (exhaust?) I will test it out more tomorrow but the boat overall just seemed to be happier with not working as hard. 

The other thing that I'm overjoyed about is that there's MUCH more flexibility between 20mph and 30mph for staying on plane. 

On this recent trip with the 3blade 22p, I rounded the northern corner of Block Island and the waves present were big and stacked one on top of the other.  The boat was taking them fine at 18 mph, but it was a TON of RPMS to be turning, not being on plane so the only answer was to either drop down to 10mph and have it take HOURS to get there or run the boat at 25+ and beat the thing up.  I pointed the boat in the best way I could and sped up. So much so that the toilet lid broke off and screws for the bimini needed to be screwed back in at the next stop.. it was pretty mucht he worst ride ever on a boat.  The important part here is that I feel like being on plane at 20mph would have made this ride tolerable both for driver and boat.  

As far as top speed goes, I didn't really get to try it out in the same conditions that I did with the 22p 3blades. I did see 34 or 35mph, didn't feel like there was much left and couldn't really look at the rpms at the time (my tach is WAY off, so I've only been using VVM). No matter what happens, if my boat never sees 36mph again, that's more than fine vs the trade off of having a boat that can be on plane at 20mph!! Admittedly falling off it if the wind blows, but still awesome.

Lastly, I don't really see what's so great about the 383 stroker, but I've never been on a 350 for very long. Some seemed to think the 20p would be too little pitch for the 383, the father at Hill told me he had heard that, and then those people with the 383 would send the 22p's back for the 20's. Bottom line, I'd be interested in trying out 22p 4blades to see the difference, but I'm pretty darn happy with these results!!





Post edited by J3ff on

Comments

  • J3ffJ3ff Posts: 1,108Member ✭✭✭
    edited July 17
    Here are the data points from when I was using the 22p 3blades, 

    Keep in mind sea conditions, wind and tide are completely different between the two tests. 

    What I can tell is just that the boat is not working nearly as hard (both drive and engine) to keep it moving forward. Does that mean that maybe I should step up to 22p 4blades? Maybe.. would love to try some out, before having to ship them back and forth.  Suppose the only real way to figure it out is to see if the boat will hit max rpms (4800-5200) - will do that test after returning from the trip, really don't want to blow up the outdrive 100's of miles from home !

    For now I'll see how it goes for the 8 hour ride home. The main victories here I believe are:
    -less power needed to get on plane
    -less RPM needed to stay on plane
    -more options of rpm and speed while on plane.. 

    For the results below, keep in mind that tide was a strong factor in the 2 or 3 mph difference.  I'll try and do the runs in the same tide with the 4blade when I get back. 





    If you have a nice set of 3 blades, I'd buy the 4blades and throw the 3blades on ebay. 

    Post edited by J3ff on
  • Handymans342Handymans342 Cape Coral, FLPosts: 4,740Member ✭✭✭✭
    Great info
  • Black_DiamondBlack_Diamond Holland, MichiganPosts: 3,767Member ✭✭✭✭✭
    Nice!

    2003 342FV "Black Diamond", PC BYC, Holland, MI
  • randy56randy56 Newburgh INPosts: 1,476Member ✭✭✭
    Excellent, I knew you would be impressed. good job man. 
    Boat Name : Knot My Prolem

    2003 - 270
  • jmichelsjmichels CTPosts: 237Member ✭✭
    Excellent results sound familiar lol!

  • andydandyd Dana Point, California, USAPosts: 464Member ✭✭✭
    Great info on excellent products made here in Orange County CA. I'm a bit surprised they haven't left the state yet for a less taxing environment!

    Andy
  • Black_DiamondBlack_Diamond Holland, MichiganPosts: 3,767Member ✭✭✭✭✭
    Be a major PITA to move an investment casting facility

    2003 342FV "Black Diamond", PC BYC, Holland, MI
  • J3ffJ3ff Posts: 1,108Member ✭✭✭
    edited July 18
    Got some more data today..  which is what I had manually calculated, I knew it was closer to 20 gph vs 17 at 28 mph
     
  • Handymans342Handymans342 Cape Coral, FLPosts: 4,740Member ✭✭✭✭
    So basically your boat is slower than a diesel  RLMAO
  • luvinlifeluvinlife Portsmouth RIPosts: 129Member ✭✭
    I am not sure what props my 270 has. It is the 350 MPI with 280 hp.  I have had 8 on board and got on plane. Top speed I have seen is 37.7 at 5200 with low fuel and 2 on board. She likes it best at 3800 and 24 mph 

  • J3ffJ3ff Posts: 1,108Member ✭✭✭
    So basically your boat is slower than a diesel  RLMAO
    Yeah but she doesnt smell like a diesel.. this wasn't a top speed run :P
  • Handymans342Handymans342 Cape Coral, FLPosts: 4,740Member ✭✭✭✭
    LOL
  • trip_ntrip_n Posts: 115Member ✭✭
    edited July 20
    06 270ec....496/b3====24p factory
    no other data
    Post edited by trip_n on
  • andydandyd Dana Point, California, USAPosts: 464Member ✭✭✭
    My swim platform tends to "dig in" a bit when getting on plane I've noticed, even though I believe my '06 has the higher mounted platform than earlier models. It planes pretty quickly, but I always trim down fully. From what I'm hearing the 4X4 props keep the stern riding higher getting on plane. If that's the case I might have to take a trip to Santa Ana for an upgrade. Well it's that or diggin's cherry steps!

    Andy
  • duane.mosleyduane.mosley florence kyPosts: 291Member ✭✭✭
    just purchased my 4 blade props from HIll Marine. 06 250, i'll pass on my experience when i get them. he said it should be just under 2 weeks.

  • BellevilleMXZBellevilleMXZ Ontario,CanadaPosts: 680Member ✭✭✭
    just purchased my 4 blade props from HIll Marine. 06 250, i'll pass on my experience when i get them. he said it should be just under 2 weeks.


    Ohhh a Volvo tester let me know how they work!!
    2005 Rinker 270 FV Volvo Penta 5.7Gi
  • BellevilleMXZBellevilleMXZ Ontario,CanadaPosts: 680Member ✭✭✭
    just purchased my 4 blade props from HIll Marine. 06 250, i'll pass on my experience when i get them. he said it should be just under 2 weeks.


    Whats on it now?
    2005 Rinker 270 FV Volvo Penta 5.7Gi
  • duane.mosleyduane.mosley florence kyPosts: 291Member ✭✭✭
    just purchased my 4 blade props from HIll Marine. 06 250, i'll pass on my experience when i get them. he said it should be just under 2 weeks.


    Ohhh a Volvo tester let me know how they work!!

    yes sir! f-3 is what is on it and Joe at Hill Marine says to stay with that set.
  • BellevilleMXZBellevilleMXZ Ontario,CanadaPosts: 680Member ✭✭✭
    just purchased my 4 blade props from HIll Marine. 06 250, i'll pass on my experience when i get them. he said it should be just under 2 weeks.


    Ohhh a Volvo tester let me know how they work!!

    yes sir! f-3 is what is on it and Joe at Hill Marine says to stay with that set.

    Nice.....first I have heard of anyone with a Volvo trying them. New build working ok?
    2005 Rinker 270 FV Volvo Penta 5.7Gi
  • Black_DiamondBlack_Diamond Holland, MichiganPosts: 3,767Member ✭✭✭✭✭
    The VV Mobile info posted in great for before/after.  Much appreciated.  If we ever get a non-windy/6' wave day I'll head out and get data points with my current set up and then might just make the investment on the Hill B-3 20P prop set as a starter.  Shhhhh on the cost to the wife!  lol

    2003 342FV "Black Diamond", PC BYC, Holland, MI
  • J3ffJ3ff Posts: 1,108Member ✭✭✭
    I just drove the boat with the new props from West Dennis Cape cod, to Newport RI (stayed overnight) and then on down to Fairfield County CT... it was easily an 8 hour journey total, maybe 9.   I faced big waves that were close together off the coast of RI..  as expected being able to stay on plane at 20 mph was EXACTLY what was needed to keep the trip underway and not be killing the driver and boat.   The motor and outdrive seemed much happier the entire time and at one point I couldn't get over how quiet everything was.  If you have a 270 that takes a while to plane, this is an absolute requirement. 

    I did do a WOT run and as expected I lost 4 mph on the top, no longer hitting 39, but hitting 35.. I assume if I went with the tide, I'd get another 3mph ontop of it.. however the boat got the best MPG between 27/30 right around 4000-4400 rpms. 

    The trip home was incredibly improved thanks to these 4 blade hill marine 20p props.  Im completely satisfied. 
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