Prop/Spacer Table - 09 Heat
 

This forum seems quite dead at the time.
Lets get some discussion going.

Here is the prop/spacer table I made up for my 09 Open bow Heat with 600sci, and an IMCO extreme SC outdrive.
These numbers are averages of at least five runs per prop.
Best speed to date has been 81.7 mph on GPS.

I have ordered a Hering 27 five bladed bravo prop to test.

Any thoughts??

Chris

Scanned image of prop/spacer table:

Chris

Chris,

Was talking to Herring the other day (headed to Havasu Wednesday to test one) and they
told me you ordered a new prop.

Have you run it yet and if so, how did it do?

I have not run the Hering 27 yet.

I have received it, and hope to run it in the next few days.

Chris

Hey Chris,

Thanks for posting your table, etc. Should be good info for all Heat owners. Interesting that speed improves with a little lower X. I'd heard that the Heat's were set up a little high and thought the same with my buddy's stock 500efi heat - it seemed to take a little longer onto plane than I expected.

Anyway - curious to see what you find.

Collin,

You are correct, not only did lowering the oudrive increase top end speed, but I was also able to plane at a lower speed, and overall acceleration and boat handling improved drastically.

Chris

Nice job man, cant wait to see how the Herring works out for you I have been thinking of buying one also

Facts!! A thing of beauty...

Nice work Chris :ernaehrung004:

Chris,
It was nice of the factory to help you and your dealer dial your boat in. Did Nordic say anything about incorporating this data into their future rigging plans?
It would save their dealers and customers a lot of time if they would mount their engines and drives at the X dimensions (18 1/4" hard deck/17 3/4" open bow) we have researched for ourselves and them.
There are other advantages to lowering engines, other than correcting slip and lift. A lower CG for better handling in rough water, and high speed handling under any conditions. Also, that extra vertical space over a lowered engine makes larger induction (superchargers, intercoolers, bigger carbs, flame arrestors, hi flow intake manifolds) and better exhaust (large diameter headers) easier to install under the stock hatch.
Nordic feel free to chime in....................
Happy Thanksgiving Everyone,
Steve

Steve,

Mike Latka, the new production manager for Nordic, suplied the spacers and props for this testing with the condition that I document my findings and e-mail them to him. Hence the Table. He has had it for about a month. When I last checked in with him, he was doing spacer testing on a stock 496 boat.

I also sent a copy to Pete, the VP of Nordic, at his request.

All of this leaves me to believe that we will be seeing some different x-dimension setups on Heats, from Nordic in the future.

A special thanks to Tim of OCM for facilitating this testing.

Chris

Thank god for that............

I've got thousands into props, fuel and ton of my time (all on my own) to fix this very problem. I hope they use this data and apply it.

While it is true that Tim and Nordic supplied most of the props (I supplied a few), and the spacers, along with the time to change the spacers.... I supplied many, many hours, and hundreds of gallons of fuel to do this testing.

Thats why they call boating a recreational sport.

I enjoyed every minute of it!

You gotta pay to play, :evilb:

And most of the fun is in the chase !

Chris

P.S. I will continue testing/playing :ernaehrung004:

Nice testing, amazing you can find 5mph, which I'm assuming also helped (may not cure) your water psi issue. Now all you need is more power :)

Dustin,

I promised my wife that I would not do your power-ups untill Febuary. But I am REALLY looking forward to them.

I solved my water psi issue per your recommendations, by modifying my IMCO lower to include a water inlet on top of the nose-cone. Works Awsome!

Thanks for all your time, and your help with setup thus far.

Chris

P.S. You will be hearing from me in Febuary. :evilb:

hey chris,

what spacer did you end up keeping on your boat?

what i'm getting at is i think i could use a 1" spacer on my heat and was wondering if you had a used one for sale

thanks
Ned

The spacers were provided for testing by Nordic. I got to keep the one that worked the best. I retained the 1.5" spacer, which puts my prop depth at 5" below the keel.

Chris

Reading all this is a little frustrating......

I get the part about fuel and hours.
The problem I was having was procuring the parts to do the testing. Outside of a couple props I was never able to get anyone at Nordic to follow through on the other stuff I needed.

Everything was offered at "oem cost" and even at that I never heard back from anyone. I kinda gave up Nordic and went and did (and currently doing) it all on my own.

Hope it all works... I'm looking forward to hearing how the prop runs.

Take care.

Just my thought here (take it for what it's worth :rolleyes: )
It's going to be a hard call for Nordic to adjust anything across the board. Some of you are raising the X, most are lowering it and the fastest Nordic Heat I've witnessed hated the spacer and might have even benefitted from a shorty :confused:
Granted most Heats like the spacer. That being said; using the "most" factor as the driver of change, Nordic should lower the X an inch.
The minority then could use shortys but bottom line is there is not one cure all answer here :cool-smiley-027:
Dave

Dave,
You are correct that one XD isn't going to work for every application. The open bow boats seem to need more lift than the hard decks. People load their boats differently. AND, as a general rule, the higher the HP to weight ratio of any boat, the higher you can run run drive. A 700SCI boat should need a higher XD than a stock 496/425, for the same reason you buddy's boat with the big motor didn't need a spacer.
STILL, Nordic should do enough of their own testing, or at least use our experience to develop a database of what XD works with with what model, deck type and engine/drive combination.
Just curious........since they are very close to Lake Havasu, do they lake test their boats after final rigging? I would, and I'll even volunteer to do it :cool-smiley-011:.
The guy with the gold chains :rolleyes: tests all of his boats.
Regards,
Steve

Steve,

I believe that they water test all of their boats. I know that they tested mine... I know they tested the 700 Ilmore boat. I just am not sure that they do a lot of tweeking after that.

I believe that they mostly build 496 Heats. That is their #1 seller. I agree that lowering the x-dimentsion at the factory would probabily be beneficial. Especially now that they are making the boats "wood free" A lighter boat sits higher in the water, and therefore needs a little lower x-dimension.

Just my opinion,
Chris

I believe they actually did start building the 496 boats with a lower X a couple of years ago. I delivered an '07 and the measured X was about 1" lower than an 06' I had. They probably raised it back up on the higher HP boats, thinking they would perform better. Who knows!

They do insist on water testing every boat now. I watched them test my 35 Flame last December in the dark...ran it wide open! But, they don't do any fine tuning.

I think Chris was very fortunate to have a really good dealer (OCM) to help him work through his setup. That's where the dealer really comes into the picture. They should work with the customer to get the boat set up correctly for where and how it will be used.

I agree,

Nordic, and Tim at OCM has been awsome to work with!

Chris

That's where I've purchased both of my boats (over a 10 month period).

I think everyone gets a little busy and unlsess your sitting in their shop or showroom you kinda get forgotten.

Forgotten?

Jim your boats runs great! (Very low slip # great speed ) Best 28ft Nordic i have ever driven.
if you raise your X your slip # will go up. and your speed will go down. With that being said Nordic did a great job on your set up. 88 mph with a 710 Ilmor in a 28ft Heat is somthing to be happy about.
I agree that you are down some RPM'S. Have you ever asked Ilmor why your motor wont pull a 26 pitch prop over 5800 RPM'S?

TIM
oregoncustommarine.com
1-866-483-BOAT (Call me anytime)

No Help????
 

Jim, Boy we must be missing something here at Nordic Boats... We take pride in working with all of our valued Nordic Customers, with honesty and integrity. Please contact us here at Nordic Boats, we are still willing to help you! However, we would like to have our Nordic Boats E Z-up back, plus a few other items! About our Dealers’, including Tim at OCM, they are all a big part of our overall success here at Nordic Boats! We value the relationship with all of our Authorized Nordic Dealers! I am truly confused by the statement that we have not helped you?? We have in-fact helped you, directly and through Tim at OCM…

Initial testing of the 27 Hering is in:

4000 rpm 63.3mph 7.1% slip

5100 rpm 80.6mph 7.0% slip

A baseline was established before running this prop by running my Merc Lab 28 at 5400 = 81mph, 15 minutes before running the Hering.

As compared to the Merc 28, speed at 4k was up 4.3mph.
Acceleration over the Merc 28 was very noticable.
Boat handlng is much improved at top end.
The Hering is much smoother at all speeds.
The slip numbers knocked my socks off!

I will be talking to Hering tommorow to see what needs to be done to get another 200-300 rpm out of this prop, and see if we can get some more speed.

Overall, this is the best prop I have run to date, and simply georgous.

Chris

P.S. Thankyou to Tim at OCM for doing this testing, and taking digital pictures of the tach and GPS speedo at speed to record the results so that I could calculate the slip #'s. I live 3.5 hours away from OCM, and am therefore not able to sit in their shop or showroom.

Chris,

Your down a couple hundred.. Not what I wanted hear.
I'm meeting with Herring Friday morning in Havasu to run a couple of their props. I'll keep you posted.

Tim,

Nice to hear from you......... and yes, I've talked to Ilmor as well as the world. It's a little bit of prop and little bit of set up at this point. I'm meeting with Herring on Friday to make a couple runs. I would have loved to have a 1" short to run as well. With Herrings low slip numbers, I think I can afford to come up a little bit and still get it where I need it.

Unfortunately, the lower I wanted to buy never came to fruition.. ;)

Pete,

Another pleasant suprise tonight. Haven't heard from you guys in quite some time. I appreciate the offer and I will be contacting you. As a matter of fact, I've sent you an e-mail and would love to go over that when you have some time.

As mentioned in my post to Tim, I'll be in Havasu late next week doing some prop testing with Herring. I'll be at Windsor around 7:15am Friday the 12th. I would love for you or someone from Nordic to come down and and spend a little time with me to help figure out my set-up issues.

Once again, thanks for the offer, can't wait to see you guys next week. Very much looking forward to Nordics valued input in this matter.

Hey Chris,
Nice looking prop (looks a lot like a Hydro P5-X), and nice #s. You're getting there!
Best Regards,
Steve