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As far as I can tell the MCX ECU is the generation 5 box. IT's piggyback as you can see in the picture right behind the MCXpress intercooler plenum. The MCX ECU controls 3 injectors inside the MCX Intercooler plenum as is usual with MCX kits. It has the same connector out for datalogging with...

Hi Dan, that would be awesome. When the crazy situation goes away I will try to come your way. My friend Bob is getting older and has slowed down on sledding quite a bit in the later years. Nowadays he is more into his hobbies of hunting and shooting. He is competing at national level on...

I have got the go to show some pictures of the sled. IT's a 2018 Sidewinder with custom one off MCX430 turbo kit installed. The motor is built to handle the extra stress. It has extra injectors installed in the plenum as usual with MCX kits. The owner is a good friend of mine. He lives in...

Thanks kinger :-)

I'm working on a friends MCX powered Sidewinder. It's been dynoed at 428 HP. We are going to change out the original track to a track with lower cams for better top end. We have installed TAP primary clutch and we have changed the helix and spring in the secondary clutch, tuning of the clutched...

There you go :-)

Hahahaha, boostheads forever, we both gotta build our last Apex.

If valve clearance is tight it will get worse when the engine warms up as clearance may get to zero gap. Than you will have compression loss, will show up on a compression test on a warm engine. Of all the motors I have wrenched on most have a few valves with below spec clearance, typically on...

Hi kinger Sad to hear about the SW. I would have been interesting to tear the motor down to see WTF went wrong on that engine. You found coolant in the oil…. cracked block or cylinder head comes to mind, have seen that before. Blown head gasket is another one but not very likely with the boost...

Hi Kinger Great to hear your new ride is working good. I still ride my 2007 Apex Warrior Turbo. Europe have decided to sell regular gasoline only, most gas stations that is. Only a few are selling premium these days, the nearest one is 110 miles away from my house. I still have a 2006 I may or...

WOW - Photobucket came to their sences and allowed for 3rd-party hosting, my pics are back up again. LaLaLa:pics: With the pics back I will continue documenting the work I do on my sleds. Jan-Ove rxrider

Hi rafikie I would recommend buying stainless steel Y-pipes, the titanium will not last. I also recommend Copper donuts to go with the stainless steel Y-pipes. They are all Yamaha replacement parts, your dealer should be able to get them for you. You will have to remove the manifold pipes to...

Damn Kinger You have me all fired up and inspired :-) Now I will have to start rebuilding my 06 Attak, I still need a motor for that Project to take off. My 06 has an an exhaust bypass like the one you are working on. It worked well untill the cross shaft holding the butterfly broke. The...

:-) 20-30 lbs sure does a lot to throw it off balance, and it will do what you described. I think that with the front mount turbo with the turbo slightly to the left and the 1 gallon meth tank to the right the balance is pretty spot on. This it how it was set up in my old RX-1, it still lives on...

Just checked with Photobucket, they want me to pay $399.99USD a year for each account, for a total of $1200USD for all my four accounts. That is just not going to happen even, I just can't pay that kind of cash for Photobuckets lousy ad-riddeled junk service. No way, Photobucket is just not...

It didn't work :-(

Great work Kinger, you have got better left/right balance which is important for consistency in front suspension. See ya

I have recieved a warning from Photobucket that says: WE NOTICED THAT YOU HAVE BEEN USING PHOTOBUCKET FOR 3RD PARTY HOSTING Your account has been restricted for excessive usage and 3rd party hosting. Your photos is still safe in Your account but you will not be able to link them to 3rd party...

Sorry, I have the exact problem myself on my 07 Apex, with no solution so far.