525 Exhaust
 

Anyone got any pics of tailpipes for a heat with a 525? Swapping out the 496 soon. I already have the motor and drive, All I need is the tailpipes. Nordic wants $1500 for them and thats hard to swallow. Also, Should I put a drive spacer in when I do the swap?

Thanks, Derek

Hi Derek,
Congrats on the new motor and drive.
It looks like you have the standard swim platform exhaust outlets on your boat. We installed a similar exhaust system on a friend's Heat here a couple of years ago. We ordered his tailpipes (and CMIs) through Teague Custom Marine. Can't remember the pricing. They did fit nicely, after a lot of measurements, and look terrific.
An alternative setup (it will be louder) is to glass up the stock outlets, and take the exhaust out over the drive. You would take it out approximately where the fuel filter is pictured in this setup.
The pipes/tips which could be one piece with gasket trim rings, would be straighter and therefore easier to fab, and possibly have a little less backpressure, and should be less expensive. But, you'll have the expense of glassing up the corner outlet holes, which would probably offset any savings on the pipes. Good luck on your project. Keep us posted.
On the spacer. That depends on your current X dimension. You may be able to run where you are, particlarly if you run a five blade. I would test without it first.
Regards,
Steve

I agree with Steve... If you have a P5x, I would try it first without a spacer.

I believe that CMI manufactures those pipes for Nordic.
I would check with them.

Chris

I just did what Derek is wanting to do or I should say Bob Lloyd at Full throttle Marine in Spicewood Texas did my swap.....
Mine is an 05 so I have a 1 inch Spacer ...I went ahead and went with the exhaust from Nordic (sounds awesome BTW) also something else to think about and the best Person to ask about this is Bob ....Bob pretty much had to build me a whole new wiring Harness when he did the swap ...We also went ahead and redid all the gears in the lower unit so now my Lower Unit is an XR drive....

I would give Bob a call and ask him your Questions like I said he just did mine back in August
Here is Bob`s Number 830 693 5591

Thanks Guys! Nordic told me that the pipes were manufactured in WI. After doing some checking thats where CMI is I think. I'll just call them. I'll also call bob at full throttle to ask him a few questions. My Original plan was to run the 525, XR w/speedmaster lower, 1" spacer, and a B1 28'. You guys think I should ditch the spacer and run a p5x first? I've Only been around nordics for a few months and am open to any comments and suggestions. I want this thing to be as fast as it can be with a stock 525. The boat goes in the shop next week and I cant wait!!! :evilb:

Derek

I am running a 26p Bravo 4 Blade right out of the Box but only getting like 4950 RPM ...Oh I think it was like 74 to 75 MPH on Speedo on the Mississippi ....My plans are to send my Prop in and have it tuned this spring and try to get my RPM closer to 5200 and maybe getting me a mile or 2 more per hour .....Like I said above I have a 1 inch spacer on mine .....Bob sold a 06 Heat to Mark LeBlanc in Houston and he is also running his with a Spacer so I would think a spacer is should be on your shopping list.......

But do call Bob and pick his Brain ...If anyone knows anything about Nordic`s he does

Hi Derek,
I don't think you'll be able to buy direct from CMI. I think they sell exclusively through OEMs, dealers, and accessory guys like Teague. So that leaves Nordic, Bob, and Teague as your best options, and of course Nordic and Bob have the correct dimensions already. Teague sent us some pretty detailed diagrams to get the correct dimensions on Butch's tailpipes.
It's hard to beat 5 blades on Heats. We've had good success with the Hydromotives and Herrings. Hydromotive has a test program to help you determine which pitch is correct for your boat. Re the spacer, I never could get a B1 4 blade to work on my boat without a 1", which I still run, even with the 5 blade.
It doesn't seem to mind the extra depth.
Regards,
Steve

I've got some stock 525 tail pipes I'd let go very reasonable. They may work if you ran straight out the back. To go out the cormers you really need to buy the correct cmi tails. When I did Bent's boat they still didn't match up and I had to cut and weld the tips so they would meet. If you try to cut corners you could run into reversion issues. The CMI talils dump the water at the very tip of the tail pipe. I would say you definitely need a spacer, even with a 5 blade. But testing is the only way to really know. If you are going to run the sportmaster lower then the whole game changes. You'll just have to test and see, but I bet it still needs a spacer unless you are in pretty rough water. Then the hull will air out well without the extra trim that is needed to carry the nose in smooth water.

Not to highjack this thread but does anyone know if you can slide in a muffler/noise reducer into the stock exhaust tips on a rage.

What is the spacer that you are referring to?

Its a 1 inch spacer that goes on your lower unit which creates your prop to get 1 inch deeper into the water ...I will see if I can find a picture

Found a picture not the best ....The spacer sits right above the Skag....Its the Flat black piece

Hammm Not sure why but I can`t seam to post pictures anymore ....I always use to be able to but my upload button is gone

Bob, I have a set of stock 525 tailpipes that came with the motor also, trying to keep from cutting more holes in the back. The Motor and drive came out of a 35 lightning, and I also got a B1 32' prop thats gonna be for sale soon.

Bent, I would like to see a pic of the spacer too, if you can get it to post. I have done the research but never actually seen one on a boat.

Derek

That does happen if your OSO.COM subscription lapses.

Tail Pipes and Prop...
 

Hey Derek,

After doing a little reading here, good engine choice for your application! Honestly, $1,500 for tail pipes (depending on exactly what they are) is not a bad price. I know Nordic usually, runs the exhaust out the side which will be atleast a 1 bend, jacketed tails.

As for the spacer, leave the set-up you have now because chances are that is going to be perfect.

On your boat, I would try either a bigger Bravo 1 or a Hydromotive P5X to help get the bow out of the water. You want to maybe run the X higher in your v to help prevent to much porpoise or chine walk.

Give me a call and I can help get you a good quote for a new set of tails from CMI and also provide a bit more info regarding the set-up with your boat! -Eric

Steve,

In your extensive prop and spacer testing on your Heat, did you try any larger diameter Bravos or PX5s for the extra bow lift?

My boat needed more bow lift when I bought it. When you got on the trim, the Rs and rooster tail came up, but the boat just laid in the water. This was caused by 19.25" XD (too high) and a Merc lab 30" B1 with most of the cup removed (what they usually do if you don't get specific on your application), which the previous owner ordered. Every Bravo 1 I have used was 15.25"s in diameter, and the P5s are 15"s so I can't say I tried any larger diameters in these props. The testing I did was lower drive housings (went from dwp XR to Imco), prop modifications (thinning, balancing, sharpening, extra cup), different brands (mostly Merc 4 blades and Hydro 5 blades), and adding a 1" spacer. My daily driver is a Throttle Up blueprinted Hydro 29" P5-X. It has great acelleration, low slip %, good bow lift, and handles very well @ wot in all conditions. I will try a friend's Herring next spring.
I did test a highly modified Maximus, which was cut down to a 15 3/8" dia x 30" pitch (I think, it's been a while). Although it did have good lift, it handled like sheet over 80. The boat was all over the place.
Regards,
Steve

I got the boat out of the shop wednesday. Everything went great!! It all just pretty much plugged in. There were just a few minor issues. I'll post pics when I figure out how to resize them. LOL Here is the boat just before I took it in. Tailpipes will be here at the first of the week..

Here are a few more. They are terrible pics, I still can't resize them right. But you can see that it's there.. :drink:

Derek

Just kidding! Here it is:drink:

Derek

Gonna Try Something Different

http://www.me.com/gallery/#100009/100_4055

I FINALLY figured out a different way. Here are better pics.:drink:

Derek

http://gallery.me.com/bullittcustoms...12612653940001

http://gallery.me.com/bullittcustoms...12612654900001

http://gallery.me.com/bullittcustoms...12612657780001

http://gallery.me.com/bullittcustoms...12612658310001

http://gallery.me.com/bullittcustoms...12612660880001

http://gallery.me.com/bullittcustoms...12612661790001

http://gallery.me.com/bullittcustoms...12612662880001

http://gallery.me.com/bullittcustoms...12612657200001

Very pretty boat...

I think you are gonna love that motor in there.

Chris

Thanks Chris, I have no choice but to like it now. My 496 is in a 27 Essex Raven that will be for sale soon. It's gonna be a long winter now for sure!! LOL

Derek

Next winter there will be a Whipple sitting on top!!!!

I've Already Priced the Whipple!! LOL :drink:

Derek

U need it Daddy!!!!!!......I luv mine.

X2 Once you go Whipple you NEVER go back !!!!

OH GOD!! If My wife knew you guys were sayin this she would strangle ya just like the guy that talked me into the 525 in the first place!!

I think i need it too, even before I drive it with the 525!!:drink:

Derek

Finally got pics of the tailpipes and fired it up today. SOUNDS GREAT!!! Still haven't drove it though, winter just won't stop here. It was 64 degrees outside today with snow on the ground!!

Derek :drink:

http://gallery.me.com/bullittcustoms...12693964730001

http://gallery.me.com/bullittcustoms...12693964790001

http://gallery.me.com/bullittcustoms...12693964830001

http://gallery.me.com/bullittcustoms...12693964860001

Hi Derek,
Nice work. You are going to have a great season this year :drink:.........
Best Regards,
Steve