Much better subject, I could write a book on this one. The biggest problem is heat and the stud's being too close to the cylinder wall. My oil cooler does a good job with heat but if the threads in the cylinder are already bad you will have to do a couple things. One, fix the theads with what's called a TIME-CERT a kind of HD heli-coil; 2, TC has some 12mm studs. The problem with these is the aluminum has lost some of it's rigidity and has gotten soft from getting hot and cold so much. The best solution is to buy a new cylinder and start over installing my secondary oil cooler to keep the head and cylinder cooler so it lasts longer. This is what we have found racing the GNCC series with Chad Duvall. I have also taken an extra step in my sleeves now and have installed a stainless steel O-ring along with my Cometic stainless steel head gaskets. I hope this helps you understand what is happening to your machine. I believe at this time your problem is that you are pulling the studs out of the threads even though it torques fairly well. As soon as you get the engine hot, you lose your torque. One other thing, is that I use Honda High Temp Lock Tight when installing the new studs making sure the threads are very clean and dry. We are actually still using stock Honda studs and not having a problem as of this time.

 

I used to be on the "give mickey a hard time" boat around here. I posted my phone number one night and he called me the next day. LOL I talked to him for quite a while on the phone. I was wrong for some of my comments that i posted. What he said in that 25 minute phone call was correct. He is okay in my book.

The comment about the cams maxed out was a little out of context. Hotcams builds good rideable cams for there listings they have. You can "max out" a raptor cam and not be able to idle or make decent power down low. Hot cams said the factory did a good job stock. They may or may not produce a predator cam soon. They have talked about it. Sure the factory cams can be improved and hotcams knows that.

Any of the aftermarket shops can make more hp than the factory gives us, but only a few can go '***** out". Not everyone demands ***** out

 

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Any of the aftermarket shops can make more hp than the factory gives us, but only a few can go '***** out". Not everyone demands ***** out[/quote]

Well said mate.

Geoff.

 

Mickey- glad to see that you drop in from time to time to defend yourself from the vultures circling. You gave me a hard time last year when i pulled my signature line that said 65HP. I finally got past that but not with trinity's handy work. lol

 

Thanks,but would'nt you have 85hp with Trinity? lol.

 

I would like to dyno on Trinity's dyno. It gives out BIG, BIG ego numbers.

 

Mickey, I have a few quastions about the Scrambler 628 big bore kit. Do you have any horsepower or torque numbers on that? What octane gas does it have to run on? How much does it cost? And finally am I going to be sacrificing reliability over power? It is too bad that you took you website down. You are the only person that I have seen that has a big bore kit for the 500 polaris moter. Aaen has some motor mods but no big bore. I WANT POWER[img]i/expressions/face-icon-small-cool.gif[/img]

 

BigBadScrambler,

I don't have hp numbers on the Scrambler but it will feel like it doubled the hp easily. If you send your crank in to be stroked and we send you back the piston kit, sleeve and head gasket it will run you $645. Cam is $195 and requires shortening the valve guides .100. Valve springs are $95 and port & flow is $250. If you need the cylinder and the cases machined, it's another $200. I am not taking on any new complete motor jobs on until the end of July and I don't give turn-around times. As far as reliability, the piston I build is about 3 oz. lighter than the stock piston so we are very easy on the rod and crank assembly. We have raced it in the cross-country series two years straight with no reliability problems. It can be run on super-unleaded in most places in the country but it runs better on a 50/50 mix of 108 octane and super-unleaded. The lead in the race gas also helps prolong the life of the motor as well as improving performance.

 

mickey,do you guys have a kit for the predator yet? i want to get one here in the next month or so, i only see aaens 540 and superbikes 580 kits

 

The 530 kit is all I have now.When I get the black box done I will have a 592cc with biggggggg cams!