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Nice work mate, show us some photos of the black head & cylinder on the motor.:3some:
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Engine pics
6 Attachment(s)
Hereby some engine pics
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Engine runs
Today I finished the bike. Filled new engine oil, coolant, put 10 liters of Shell Vpower in the tank. Hit the start button once, no response. Hit it a second time and the engine was running!
Drove a few km's, checked the oil level, put some more oil in it, checked the coolant level again - no need to fill that. Drove again some km's very carefully, at very low rev. Checked the oil again, checked for leakage. All seems to be fine. Put on my motor suite + termo suite (currently very cold in Holland). Drove around 70 km's at low rev. Swifted gear often, 3rd to 4th and back. Raised the rev's carefully sometime, very carefully, almost no throttle. At first opinion the engine runs ok. But this is based on 70km's, low rev's. There's more noise cumming out of the cilinder/head. Not sure yet if this is bad, my opinion this is cause by the OTR welded cam. It also feels like there's also more vibration at higher rev's. Also the engine starts not immediately when warm. When it's cold then no problem. For the next couple of days I will drive some more km's to see if it remains okay. After around 500 Km's I will raise the throttle lever some more and do some higher rev's to see if the bike got more power. Greetings from a cold Holland, Marcel |
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Freezing cold!!!
It's freezing cold currently in Holland. But despite of this I took the bike for a ride and now having 270km done. I can tell you that this is very unpleasant, having ice covered on your glases and suite. But the engine is still running well - no oil consumption at all. Although it's a bit more noisy because of the OTR cam. Also more vibrations. I haven't tried it yet a full throttle. I did try half throttle once, in 2nd + 3rd gear, just a second and than back to 1/3, and I think it's more powerfull than before, more aggressive. The sound cumming from the exhaust is also changed, it's louder; when doing the half throttle I was shocked about the loud sound cumming from the BSM (have my db killers blown out ;))! I must say I don't like the changes at all, the bike feels like a drag racer -which only runs perfect at full throttle - but I'm very curious what happens when at full throttle. Also I'm curious what gain it will have on the HP's.
After 500km I will raise the throttle lever some more and make an appointment for a dyno run + remapping. Greetings from a cold Holland, Marcel |
Mate your bike will not feel like a normal XT anymore. You would have increase the HP by 25 to 30% & with your choice of cam, your power band would have moved up the rpm range with more force. :love10:
Wait until it is run in with a custom fuel map you will love the power. |
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All the time you've been a great help for me, for all the people of Xt660.com. It was you who made me curious about doing these kind of - more complex - mods I may say. Thanks to you I did know what parts to order and now we know which parts work together (raptor cylinder/JE piston;xt cylinder > big bore 103mm w/ JE piston) etc. I will try following the leader in XT mods! I'm a bit afraid that it won't end here...Stroker kit/+6mm 700cc >> 750cc?! Greetings from Holland, Marcel |
after doing almost 600+ km's she's still running, thank god! I now can take the bike to higher rev's and she feels much stronger like Kev was saying.
Doing wheelie is 2nd gear is no problem, just open the throttly lever to full and there she go's (with oem sprocket 15-45 size):toothy10:; no cluthing trics anymore. It's become a complete new bike, much more fun to drive; a constant power up to the rev limiter. The sound has cumming from the silencers has also changed; much heavier and louder. I found a custom mapping from a Raptor 700 similar to mine setup (special cam/700ccm/ported head) which I uploaded in the PCIII for the moment. The more km's I drive, the better she runs. But since it's very cold at the moment driving the bike is a bit unpleasant. Soon I'm going to change the sprockets soon by 15-46 for sm and 15-47/48 for dirt. Have to play around with different sizes. Next tuesday I have made an appointment with a dyno center to make a custom mapping and see the results. Can't wait to see the results. Hope for 55+ hp. Greetings from cheese country, Marcel |
I can't wait to see the result as well, 60HP + for sure. You have a before dyno run so we can work the gains out, as every dyno reads differently. So don't worry to much on the final reading as we can work out the true hp by the HP gains from the standard run.
I also love my extra power all the way to the rev limiter with no power drop off. The bike wheelies on roll on in 2nd with no problems, I find it hard to keep the front wheel down in the mountains in the tight stuff it just keeps standing up when ridden hard. :Speedy_Superhero_Q3 |
I never had a dyno run before. I was planning to do so but was unable to find me a nearby dyno center. Now that I finally found one nearby (about 60km's driving; by car(!)) I already did the xt700 mod.
The center I found is the one I got from powercommander.com. They are equipped with Tuning Link Software and are authorized tuning center. There are a few of these dyno centers across the Netherlands, thank god for that! Otherwise had to drive to Germany or so. This weekend no driving because of the weather conditions :sad6:. So I started to install my Hyperpro front springs/oil+kev spacers. This must make them stiffer I hope. First have to warm the garage a bit, otherwise I will be freezing of important body parts ;-) Greetings from a cold Holland, Marcel |
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