O MY GOD,

Very interesting post KEV, please continue.

:notworthy[1]::YouRock:

:hb::hb:No problem we wait.......thanks for the reply Captmoto....

I am only off in a few hours time.

Yes if you get the Stage 1 Hot cam & the extra Raptor bits it fits staight in. Shop around for the bits otherwise cost a bit from the dealer. It was US$66 from the breakers in the USA or US$320.00 from a dealer here in Australia for the extra bits. The cam it's self is cheap as chips.

I would only recommend that you fit this cam if you have a power commander both filters & cans otherwise the gains will be small.

You need to get a 6mm X 1.0mm threaded bar to pull out the rocker shafts so the cam comes in & out. Or a slide hammer with that thread size. You can see how I did it on the very first lot of photos on the first page of this thread, I used two sockets & a long threaded bolt. The threaded bolt or bar needs to be 80mm long.

We will see what the gains are when I come back from Sydney in a few days time & can get it on the Dyno.

If you buy the stage 1 or 2 cam from Hotcams and the other rap cam bits Kev indicated, then it is a pure drop in job.

To do this, you need to remove the two bolts and side cover on the head. Then , the cam sprocket and the plate that holds the cam in place. You will also need a tool or puller to help you pull out the two rocker arms inside the head. Once they are you, you slide the Xt cam out, slide the raptor cam in, bolt it up, adjust the valve gaps and it�s ready to be closed up.

I would strongly suggest that you also remap the fuel injection as this cam will cause the motor to breath better.

The cam conversion when done right should be just as reliable as the stock cam. The stage 1 and 2 cam from Hotcam use the stock valve springs so it is not as wild as some people might think it is.

I have installed stacks of stage 2 cams on Raptor 700R and not a single one of them has had a breakdown and trust me, these bikes are hammered each time they are out there. A lot of them are used for drag racing and track racing and no mechanical problems even with the raptor revving out to 9000 RPM.

None of us have tested the gains the cam alone will give you, but if the 700 raptor is anything to go by, the cam alone will easily add 2 to 4 HP at the top end and around 4 to 8 HP at around 7000 RPM.

On the raptor, the cam alone makes a massive difference in the power output.

Ohhhhh guys thanks a million, that�s why I love this forum, here we have tech wizards that make everything easier for us and our bikes running faster.:smilies0346::smilies0346::smilies0346::smi lies0346::applause::applause::applause::applause:: applause::slywink::slywink::slywink:.

The final touch.

Kev2 dropped off my cover tonight, a job well done he machined all the letters into the cover. I will fit it tomorrow. I might change the coloured letters to orange the same as the bike.

http://i201.photobucket.com/albums/a...x/DSCF2529.jpg

Fantastic job, the raptor cover has an agressive racing style and a better looking.But is not necessary to change the cover when installing the raptor cam.Is it?:incon_aargh[1]::incon_aargh[1]::incon_aargh[1]:

Very nice Kev, I'd be interested to hear how liberal your police forces are there in sunny Brisbane, here in UK having a bike that is registered as 659cc and having a plate on it that says 700 would raise enough suspicions leading to your bike being given a field day by the 5-0. and a heap of trouble.

Good point there Capt, will you have to change your "log book" Kev to state the increase??? and maybe insurance??? mainly for your own benefit if anything should happen

Also you could do with new "XT700X" stickers now????????????

Ian if you wanted to do that legally, you would have to obtain a re-matricullation of the bike by DVLA with severe inspection in regards to roadwothiness and compliance with all emission rules etc etc... I vey much doubt it you will get a "green card" if you really are keen on doing that (and you haven't heard this from me) then you are much better doing it on the quiet without having a sign sayng XT700X or something. Most coppers couldn't tell the difference at first look unless your bike is confiscated for inspection.

My mates in the unit near me do engine conversions on VW Golfs putting obviously higher powered engines into a previously lower powered car. All the owners then do is inform the insurance and dvla of the changes and there are no inspections. I presume this is the same for all "car modding" and bikes too?????

In Australia Queensland you need a modification plate for any mod, cans, suspention or motor mods.

The Raptor cylinder shows no markings of 700cc nore does the XT660 cylinder. I would always say the cover was bing & Yamaha do not make a XT700c & you can not buy a bigger XT700 piston.

The cans so far have not caused any problem & I have been pulled over for inspections before.

http://i201.photobucket.com/albums/a...evxtx/1-14.jpg

:YellowWow_KKPB92:That looks class kev. I know youve wrecked your ankle but have you messed around with it yet, ie running the engine, allowed kev2 to have a go yet??

Kev

An idea which I think would be cool but not sure if you would be interested is to have a custom set or tank shroud decals made like the OEM ones but with XT700X on. A megga subtle but very cool mod. From what I have seen you are not frightened to tackle ANY mod!

Cover on the engine looks good especially once in orange to match the bike, a nice touch mate.

http://www.xt660.com/gallery/display...hp?imageid=786

I did 600kms before stuffing my leg up. It felt real good, I need to get on the Dyno to sort the fuel map out.

Have though about it, not sure if I will do it.

Every mod I ever do, I always make sure when it comes to selling my bike, it can be put back to standard.

If you are still after a complete Raptor camshaft, I got mine from these guys. I see they have a second one in a head, send them a E-mail. They sold me the cam out of a complete head.

http://cgi.ebay.com/ebaymotors/06-Ra...8030QQtcZphoto

Ok to round things off, what did I need & do for the Raptor conversion.

http://i201.photobucket.com/albums/a...x/DSCF2400.jpg

1/ I first bought a new Raptor 700 cylinder off Ebay. I would check to see if you can get your standard XT660 cylinder bored & replated it might be cheaper then buying a new cylinder.

http://cgi.ebay.com/ebaymotors/NEW-RAPTOR-700-700R-YAMAHA-CYLINDER-OEM-2006-2008_W0QQcmdZViewItemQQcategoryZ43977QQihZ023QQite mZ360039826587QQrdZ1QQsspagenameZWDVW


2/ I bought a JE 102mm 11:1 piston kit off Ebay, you could also use a Wisco piston kit.

http://cgi.ebay.com/ebaymotors/YAMAHA-700-RAPTOR-JE-PISTON-KIT-STD-BORE-11-1-06-08_W0QQitemZ360038258921QQcmdZViewItem?hash=item36 0038258921&_trksid=p3756.m20.l1116

3 I bought a used complete camshaft from a bike breaker off Ebay. You need these parts off the Raptor camshaft.
http://stores.ebay.com/ADRENALINE-CYCLES

http://i201.photobucket.com/albums/a...artsneeded.jpg

4/ I also bought a Stage 1 Hot Cam off Ebay for the Raptor 700.

http://cgi.ebay.com/ebaymotors/NEW-YAMAHA-RAPTOR-700R-700-HOTCAMS-HOT-CAMS-STAGE-1-CAM_W0QQitemZ200213008300QQcmdZViewItem?hash=item2 00213008300

5/ Top end gasket set is made by Cometic & bought off Ebay.

http://cgi.ebay.com/ebaymotors/Cometic-Top-end-gasket-kit-Yamaha-Raptor-700-700R_W0QQcmdZViewItemQQ_trksidZp1638Q2em118Q2el124 7QQcategoryZ43977QQihZ016QQitemZ260223507207QQrdZ1 QQsspagenameZWD1V


6/ You need to machine the base of the cylinder by 2mm so it will fit into the crank cases, you also need to machine a cut away on the base of the cylinder for the engine breather. You need to slot the 6mm holes on the cylinder. You also need to slot the base gasket to fit the casing. I would not machine the cases again.


http://i201.photobucket.com/albums/a...vxtx/xt700.jpg

http://i201.photobucket.com/albums/a...stfinished.jpg

http://i201.photobucket.com/albums/a...amahaxt700.jpg

7/ Drain all fluids coolant & oil.

8/ Remove motor.

9/Remove head & barrel & fit the new parts, you will need to book some Dyno time to reset the fuelling.


10/ You need to fit a 8mm breather pipe from the front of the Raptor cylinder into a filter under the tank.

http://i201.photobucket.com/albums/a...tx/Xt700-1.jpg

Futher HP can be gained by porting the head while it is off & fitting a stage 2 camshaft.

I will finish this post off with the Dyno results ASAP.

Hi Guys I am Kev (KLR) great forum you got here.

Helped Kev with all his machining for the Raptor mods, had a ride on the 700 today heaps more power than when standard. Up top has more power, will have better bottom end power after fuel map is corrected on the Dyno. Kev will give all the super bikes a good go for their money in the hills.

Glade you guys enjoy the spacers that I make for the XT660. I have a set in my KLR650 for some time but not in my ZRX1200. The links are a pain in the arse to make. I have given Kev a few machines shops names to contact to get the next batch of links on the go.

Hi there KLR and welcome to :660: good job on Kev's bike, we've seen the pics and we were all very impressed.

Enjoy your time here

Thanks Fran ,it is hard trying to keep up with Kev, he has to many ideas in his head. When are you coming to Oz for a ride?

Damn you KEV!!!!!....lol

You and your mods got me in a mood to mess around with my XT also.

I have 2 700R raptors with me now and I am testing out bigger valves, different valve seat cuts and also new high flow valves. Once I am done with these two raptors I will have more detail on how to get the Xt's head to flow a lot better.

You need to get your bike on the dyno to see how much it cranks out now and then I will see if I can catch up to the same power, but going towards stage 2 cam, porting the head, but not increase the XT's capacity. Not sure I will be able to catch up to the 700�s torque output, but worth a go.

Hopefully when we are done, we can give these guys two options to make the XT's go.

If it wasn't for my leg we would have had the results long ago.

I will get a stage 2 cam to try once I have the results from the big bore stage 1 conversion. They very cheap to buy once you have all the extra bits from the Raptor cam.

The big bore with stage 1 cam will have more torque, than just flowing the head & a stage 2 cam. The stage 2 & head port with valves should have more HP, I recon.

I am looking into the Raptor stroker kits & waiting for my local dealer to pull down a Raptor motor, so I can do some measurements.

We both know these motors respond well to more air/fuel & the Raptor forums have proved this. Getting more air/fuel in & out = more HP on these motors.

Well, if things work out as planned, I might have a XT700 on my dyno soon.

One of the Yamaha dealers I spoke to today built a XT700 for a client, but they bored out the stock XT sleeve to 102mm, installed the raptor 11:1 piston and gasflowed the head. As far as I could tell, it is still running a stock XT cam

If their claims pan out, it looks like it makes around 5HP more than a stock XT660X with DNA stage 2, PCIII and Leo Vince Slip-on pipes. But let's wait and see what it make on my own dyno, before we get to excited.

Currently it is running a TFI which we all know does not do a good job of fueling the XT and I gave them a Dynatek EFI unit to try out and see if it makes better power.

I�m eager to see how Kev�s machine will perform on dyno.I�m waiting for my stg 1 and the raptor bits to arrive here in Brazil, if my bike had an improvement with this cam at high rpm�s I will be satisfied,I think the 660 engine is too calm at high rpm�s.My bike is running with Kev mod, both filters and leo vince pipes, my spark plug looks great so I dont think I will have much problems with the fuel mixture after installing the cam.Imagine the Kev XT with the same power as the new KTM 690 ,this will be awesome.:woo::woo:

If you are starting tp play with big mods like cams & pistons you need a Power commander to get the fuelling right.

Boy the mods are starting to roll in. When are you getting this bike on your Dyno?

Well the results are out, I am still testing camshafts over the next few days, so more dyno sheets to come.

Just short of 57HP, 56.92 @ 6500RPM. I have lost a bit of the bottom end but gained alot on the top.




http://i201.photobucket.com/albums/a...ltersPipes.jpg


http://i201.photobucket.com/albums/a...tx/7200RPM.jpg


http://i201.photobucket.com/albums/a...evxtx/2-17.jpg


http://i201.photobucket.com/albums/a...ore7200RPM.jpg

Looks like a reasonable gain there, the question is are you happy with it?

If you know me, I am always playing with things.

I set out to get 55HP & got just short of 57HP so yes I am happy with the bike, it pulls real well strong mid to top end power. It pulls all the way to the rev limiter, with hardly any power drop off at 7200RPM.

I would prefer a little more bottom end power, I am already working on that & will have some answers after I have tested the standard Raptor & standard XTX cam with the 700 conversion. As well as some other mods that need testing on the dyno.

I would expect 60HP + with a stage 2 cam & even more with a gas flowed head.

At 57HP there is a 26% gain in power & torque which is a good result in it's self.

Thats a great gain in power but not trying to be off putting would you think its a good gain for the amount of money youve spent??

Kev, thanks for the results. Looks a bit as expected don't you agree? About the torque, what is the conversion factor to Nm (Newton*Meter)? I can see almost 50 ft-lbs, how much is that in Nm? Your not driving a XTZ660?! Looking forward to further mods/results by Kev ;)

Greetings

Marcel

Price of mods if bought in Australia to HP gained

PCIII $450 + carbon cans $1200 + DNA stage 1 & 2 filters $200 Total = $1850 divided by 6HP gained = $308 per HP

Big bore kit including all parts $900 divided 6HP gain = $150 per HP

All the above parts fitted are without labour, even if you double the amount of the big bore kit, it is still good value for $'s to HP ratio.

The big bore kit was the cheapest mod to gain in HP for me, as I did all the work myself.

57HP = 42.5KW

50lbs/ft = 67.71 NM

Sadly for the rest of us poor *******s, we'd have to pay for the labour and by the look of the work that went into fitting the 700 kit - it would be prohibitive. Would you like to hazard a guess as to what that would have set you back if you'd had to pay for the labour?

I would say $800 would cover the labour easily, that would give the bike shop 11.5 hours to do the job, it can be done in 9 hours.

very good bit of infor about the prices there Kev, thanks. It seems like a very good mod really if you think about it. I wonder if Yamaha where to see this and would they up the size of the XT to 700cc?!?!!?

The higher the HP you want the harder it gets & the more it costs to get there. To get the next 6hp would cost a bit more then quoted.

If all the engine mods are to be done at the same time it would cost less in labour.

Next mods could be +2mm throttle body, +1mm inlet valve, a good port job, stage 2 or 3 Hot Cam, 105mm bore, 12.5:1 piston kit, O ring the cylinder, the list is endless. The more power you put through this motor the chances are it will break if we go to far.

The Raptor stage 1 Hot Cam conversion is only a mild engine tune. We could get alot more HP from this motor.

Glad your having fun with the motor kev. Ive always wanted to do something like that just not got the knowledge yet or the time.

Would really love to have a stab and making my own trike. buy a tilting rear end and just go from there.