28 Heat speed increase?
 

So, I came away from the boat show with my eyes on something new. And it wasn't a Nordic. But after a long look at my finances and what a new boat would set me back, I think I will keep the ol' 28' for now.

So........

With a stock 502 on a stepped hull I do 61-64mph.

If I add a Whipple and a new prop, what speeds am I looking at?

It might bring some new excitement (at a much cheaper price) to keep me in the Nordic a little while longer.

(And I do have a full Max Machine drive, so I can handle the increase in HP)

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Re: 28 Heat speed increase?
 

OK not a Nordic.....but what caught your eye ???

ALSO.......keep in mind NORDIC will unveil 3 new models late Spring !!!

Re: 28 Heat speed increase?
 

RiverRacerX,
My recent mods (575 to 725hp/bobtail) have netted me a 9 MPH increase. So, if you divide 150hp by 9mph you get 16.7 hp to increase 1 mph.
I have a 2001 step hull Heat with a 575. It ran 76 stock, and now runs 85/GPS.
So, if you pick up 150hp, you should be looking at 70/73. Maybe more, and here's why. Speed increases are not always linear. The faster you go, the harder it is to faster, because the aerodynamic and hydrodynamic drag forces on the hull increase exponentially. It takes more hp to go from 76 to 85, than 64 to 73.
Good luck with your mods. I think you'll be very pleased with the Whipple stuff. I am using a Whipple intercooler on my 575.
Let us know how it goes.
Regards,
Steve

Re: 28 Heat speed increase?
 

Chris...what caught your eye?

Re: 28 Heat speed increase?
 

Well, the boat that caught my eye was the new 30' Magic deck boat. Now before you start flaming you must realize the boating I do. The boat stays in havasu, I have two kids and occassionally take my folks out on it. The deck boat is 30' long 9 1/2 feet beam and about two feet taller than the 28' deck. It is a centerpod cat, built for comfort and the height allows it to have two cabins on each side (a must). Also has twins. Wife also doesn't want a closed deck, and likes the practical space on the deck boat. I have photos on my board if you want to check it out. I just don't want to spend the money ( or can't :) ) right now.

LIOPA, I love my Nordic and love Lonnie and the folks there, but I certainly wouldn't hold my breath on those new models. I have been watching the 42 and the 26 cat being built since day 1 and I am still watching! :rolleyes: They have also had the "New 30' coming soon" in their regatta program for the last 3 years. I would love to see a new model come out! They need another hit. I love their 35', but no open bow and it gets too hot in Havi for a closed deck.

How hard are the Whipples to install. I am a pretty good wrench, but don't have a clue when it come to tuning or touching the computer stuff!

Re: 28 Heat speed increase?
 

Chris,
I’ve worked on and am closely acquainted with a few different configurations of 28s :rolleyes:
A Whipple on your motor would definitely wake up your 502 Heat (substantially).
Your speeds will increase substantially and depending on the amount of boost, you will be looking at a jump from ~400 hp to around an honest 575hp. Your situation makes your setup a great candidate for the intercooled Whipple. You boat where it is very, very hot and have access to very nice cold water out of the bottom of the Hoover year round. This means that much of your heat robbing issues will be overcome upping your baseline performance.
I am not a very optimistic person when it comes to speed expectations however I am pretty comfortable thinking your boat should run an honest 74-76 mph on GPS everyday. Just make sure your bow cover is on and you don’t have any passengers in the front :eek:
A couple of questions come to mind:
How many hours are on your motor?
When was the last compression check?
Are you planning on freshening the motor?

I am in the final stages of wrapping up a 3.3L Whipple install on a 2001 502Mag in a 24 HTM. It has been a fairly straightforward install and Dustin has quickly resolved any issues that did come up. This wasn’t the standard setup for a 502Mag, which generally uses the 2.3L charger so there were a few new variables. I went with the bigger charger on this setup because we demand a little more boost up here at our higher elevations and there are some upgrades in the future :evilb:

Give me a call if you need any additional info.
Dave

Re: 28 Heat speed increase?
 

UNDERSTOOD River.....although there are some major changes in the works as we speak for NORDIC. Kal Kustom is now heavily involved in the CATS being developed. The one you see at Nordic is just one of a couple being developed at another location by Kal Kustom. In addition to 2 cats a DECKBOAT cat almost ready as well. It is based off the smaller cat and very very trick. The goal for public release is early this summer. The 42 late Fall which has been pushed back for the cat series to be completed. Of course this could all change in a heartbeat but this info is 2 days old and from an inside source at Kal Kustom.......

Re: 28 Heat speed increase?
 

The changes at Nordic should be very good ones with a real business guy stepping up to the plate :drink: :drink:

Re: 28 Heat speed increase?
 

YUP.......... :drink: :drink: :drink:

Re: 28 Heat speed increase?
 

Hey Dave does RAYLAR make a kit for that motor???

Re: 28 Heat speed increase?
 

Motor has 160 (key on) hours with no problems. Do I need to pull the heads, or just pop on the Whipple and go?

What does the kit cost and what do you think a typical install would cost? I would love to try it myself because that is how you learn stuff!

What prop? 30?

*****

LIOPA, I thought we were still waiting on that house to be done for the big changes to occur? ;)

Re: 28 Heat speed increase?
 

Don't you have any pictures from that 26" cat??

Re: 28 Heat speed increase?
 

THE BIG HOUSE THAT KEEPS EXPANDING....that one .....LMAO

THE BIG "O" !!!

I think more force are at work now than just that house if ya know what I mean. :drink: :evilb: :drink: :evilb:

Re: 28 Heat speed increase?
 

Well yes and no...I do have pics of the one I saw..... but........thats not the one that will be relaesed for production.

When the fianl version is out of the mold I will post pics on this forum.........The deck boat sounded awesome BTW......have you guys seen many RUSH's out there......another nice quasi-deck mod V......boat.

Re: 28 Heat speed increase?
 

The huge house with the two car garage.

Re: 28 Heat speed increase?
 

LMAO................. :p

Re: 28 Heat speed increase?
 

Chris,
You should be able to get a 2.3L kit for around $6500 or less would be my guess. Call Bob at Full Throttle Marine and he can hook you up with a good price.
Not sure what a typical shop install would run. I charge much less than a shop and take much longer. How does that work :(
Maybe someone has a standard install rate but I would figure around $2000. Honestly I'm not sure though; you'd have to check. Honestly, I think you could do it yourself with some phone help and all.
You wouldn't need to pull the heads unless you wanted to upgrade the head gaskets. Dustin feels the stock gaskets are sufficient for a stock install.
Maybe a 30, perhaps a labbed 30...good starting point tough.
Do you have steering?

LIOPA, Raylar doesn't make anything I'm aware of but there are plenty of great combos for that motor with the only draw back being the EFI system.
The other problem is that with the 502 being a much mechanically stronger motor than the 496, you get a much better bang for the $$$ with a supercharger.

Don't know if that made sense :p

Re: 28 Heat speed increase?
 

Chris, If you have the mechanical ability to change the intake manifold and set timing then you can do the install. I'll get you a good price on the Whipple when you are ready. I would charge around $1500 to do that install, but I'm sure the West Coast labor rates are much higher than here. I would be glad to help you with any specifics, just give me a call.

As far as performance goes I would expect 73-74 on average. A couple more MPH under good conditions. My 28 has a 555 CI/625HP naturally aspirated engine and runs about that speed, with a best of 75. I am running an XR drive with the ITS box. I think that actually slows the boat some, as does the open bow. I've seen times when I couldn't get past 68 with a couple of people in the bow. That really kills this boat as I'm sure you know. It will run a little better in a few weeks, once my Whipple arrives..LOL..

Bob Lloyd - 830 6935591

Re: 28 Heat speed increase?
 

Bob, Dave,

Thanks. I need to see how I can work this into my budget ( the wife has the checkbook :p ) At least I can tell her it is MUCH less than a new boat!

Between myself, my dad and father in-law I think we could do it. :chick: My dad had a Blown Alcohol Hydro and my father in-law has rebuilt about a dozen classic cars from the frame up. I only know jet ski motors inside and out. :eek:

I would like to see mid 70's for sure!!!