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Engine build with progress pics...

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Old 01-27-2013, 04:59 PM
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Engine build with progress pics...

I'm new to the site but registered a week or two ago and got some good in sight on what direction to go in with my new 700 rhino. After putting the rhino on my dyno I realized the rhino comes detuned compared to its grizzly and raptor family. Raptors dyno in the 37-38hp range on my dyno bone stock and my personal grizzly 700 makes right at 32hp. To my surprise the rhino made 23.?? Almost 24hp. That being said its hard for me to keep anything stock seeing I build drag bikes for a living and have a full fab/machine shop at my disposle. Here I am two weeks into owning the rhino and I decided to start the process. We are going camping at the dunes next weekend so this will be a fast turn around as I will work on it after work and when I have time.

Now for the plan. Nothing fancy just basic mods that prove to make good quality gains on my raptor projects. Cp 11:1 piston, hot cam stage 3, port and polish the head, stock size valves but going with raptor springs and retainers (I have them and they work fine with the stage 3 cam), greaseless clutch kit, power commander 3, bored stock throttle body.

These mods on a raptor make 67-70 hp on my dyno. My personal raptor makes 62-63 with the same mods except with a stock compression forged piston for the nitrous.

I just finished boring the throttle body. I didn't have a 46mm blade in hand and don't have the time to order one since I'm taking the bike rising next weekend. So what I did is take the 44mm blade out of a spare raptor throttle body and used it for the rhino throttle body. Cheap and easy and 3mm bigger. Not 46mm but it was free and it should help.

The top end is off and I'm stating to work on the head now.

Here are a few pictures of the bike and progress so far.

Again, this is not a big bore stroker project, but may have interest to some people out there.

The bike the day I got it. 09 700 with less then 100 hours. Very clean to say the least.





The start of tear down.





The t body bored and going back together.



All finished and ready to go back on the bike.



That's what I have for now. I will try and keep this updated over the next week with final assembly and dyno results along with riding impressions.
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Old 01-27-2013, 05:03 PM
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Forgot about the exhaust. I'm planning on a muzzy full exhaust, but for the up coming weekend I'm probably going to make something that utilizes the factory head pipe and make a slip on of some kind. I will also grind down the inlets of the head pipes because the welds are huge and restricts flow.
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Old 01-27-2013, 05:09 PM
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Looking good!
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Old 01-27-2013, 06:29 PM
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Last update for the night. Went ahead and put the piston on and tq the cylinder down. Will finish the head tomorrow and hopefully install the head.

My cam hasn't come in and I'm concerned it will not be here by the weekend. What I may do is run a stock raptor cam. I haven't degrees it in a while and don't remember the specs off hand, but just holding the raptor cam and rhino cam side by side you can see the obvious difference in duration so I may install it just incase the stage 3 doesn't get here in time.



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Old 01-27-2013, 07:33 PM
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im curious to see how it runs for sure. im also wondering if a stock raptor cam might be a good upgrade for my turbo'd 660, i also want to do some head work and short side vavle work
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Old 01-28-2013, 06:47 AM
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sweet, What a rhino makes on a perticulair dyno seems to vary a bunch, so having the total stock output is a major plus....keep us posted i want to check it out..I've seen my car and other motors I've built vary. From albas dyno to the proshops to wellers dyno. What brand and model is your dyno?...cool build, awesome to have a dyno at your fingertips, especially a chassis quad dyno, the car dynos are way out in space for these little motors...the 700 seems to make 2hp over a 660, my rhinos made 21 being stock 660s on the proshops dyno, albas is about 23 I heard, wellers about 25 all rear wheel hp numbers...I went from 21 to 48.5 on average with my 686 build,11-1 piston duners wet clutch and cam...keep us updated!...
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Last edited by camshaw; 01-28-2013 at 06:56 AM.
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Old 01-28-2013, 01:56 PM
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My dyno is a land and sea. Chassis (rear wheel) dyno. Ive had it About 8 years and it's pretty stingy compared to others I've had customers dyno on. But it's a tool so I don't get to rapped up in other dyno numbers. Just go off of my baseline and gains on my dyno.
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Old 01-28-2013, 02:14 PM
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Welcome to the rhino world CP. Good to see you still working on motors. Thought you took a break. I'll tell you one thing, he knows that dyno like the back of his hand. He is a dyno genius. He's built some of the fastest banshees, 450's and raptors I've ever been on side of. I bet he's scratching his head wondering who I am since I got out of drag racing lately. Good luck buddy.
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Old 01-28-2013, 02:59 PM
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Yep. scratching my head is right. Lol who ever it is I've got a RBI o. Is and I'm ready to play. Belle rose...your close enough to go to the dunes this coming weekend.


Thanks for the kind words.

Not a full break....just took a couple steps back. Have a few irons in the fire, but still building bikes.

Last edited by cp5899; 01-28-2013 at 03:14 PM.
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Old 01-28-2013, 03:12 PM
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Ok. Got the rhino back together and it sounds good and runs good. Needs clutch work bad!! So a call to hunter works has that fixed up. Since I only due direct chain drive motors I know how to get the power to the ground with a Trans, but not so much with a cvt. Todd was very helpful and answered my questions and got the parts I need on the way.

The rest of the build went smooth. I got the head fully ported and it turned out nice. Hated putting the nice head on a 1200 lbs bike. Lol While I had the head apart I put raptor springs in it and a stock raptor cam. If my hot cam comes in Ill change it, but not holding my breath. As I was putting the motor back together I decided to just use the factory head pipe for now and made a slip on from a Dg slip on I had laying around. I notices the header flange had a huge 3/16 mig weld around the whole inner flange so I could not let that go. I cut it down smooth and ten ran a tig bead to weld it back strong. Installed the power commander 3 and put in a safe tune that would work to start it before getting on the dyno. Turned the key and fired right up and surprisingly sounded good.

Here are some pics I took along te way.















http://i1126.photobucket.com/albums/...72969D97FC.mp4

Last edited by cp5899; 01-28-2013 at 03:17 PM.
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Old 01-28-2013, 03:21 PM
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cool....let us know how it does on your dyno, curious to see the results, Im thinking a 22 horsepower increase...
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698cc 4mm crank 100.5 bore, Pro-flow/camshaw intake and head porting&flow bench head design and exhaust,duner cam,stock valves,welded cases,Camshaw engine tricks and mods,custom air intake system and breather kit,greaseless clutch(DOSDAYONA custom race curve)48 HSR mikuni carb, oem throttle cable mod, owner built cage and bed delete, 40" LED,alternator kit,camshaw spindles and gusseted oem rack,HD heim joint steering links,Jaz seats,5 point belts,gauges,STU blasters&whipsnakes,714-833-6171
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Old 01-28-2013, 03:24 PM
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Here's a little help

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Old 01-28-2013, 03:34 PM
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Eric...gotcha. Lol. Didn't know you had a rhino. You need to come ride with us at the dunes this weekend.

My raptors go from 37 to 62-63 with stock compression. With high compression they go 66-68. So hoping for at least 22 gain. I just need to get the clutch sorted out. I'm a complete noob with cvt transmissions. I'm sure hunter works will get the clutch lined out.
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Old 01-28-2013, 03:47 PM
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20-25 hp loss thru a cvt is what we've seen
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698cc 4mm crank 100.5 bore, Pro-flow/camshaw intake and head porting&flow bench head design and exhaust,duner cam,stock valves,welded cases,Camshaw engine tricks and mods,custom air intake system and breather kit,greaseless clutch(DOSDAYONA custom race curve)48 HSR mikuni carb, oem throttle cable mod, owner built cage and bed delete, 40" LED,alternator kit,camshaw spindles and gusseted oem rack,HD heim joint steering links,Jaz seats,5 point belts,gauges,STU blasters&whipsnakes,714-833-6171
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Old 01-28-2013, 03:53 PM
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Thanks for letting me work with you on this project, looking forward to the results!!

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