My understanding is that the motor is only ever balanced when the crank is perfectly in line with the piston which is 1% of the time in the motors rotation. At no other point are the counter weights in line in with motors rotation leaving the other 99% of the time the motor is out of balance. Completely different from a normal v8.Seems like I have read that you cant truly balance a single cylinder engine. There are a lot of posts concerning this on Bobs.
Just bought a 308 grind cam and 22 Ib springs. Do any of you think my stock bottom end can handle 8,500 rpm? should I get a Billet rod and flywheel?
it will be alright until it lets all the smoke out, then you cant put it back in. For sure a rod and flywheel, and still don't hold it at 8500 too long.Just bought a 308 grind cam and 22 Ib springs. Do any of you think my stock bottom end can handle 8,500 rpm? should I get a Billet rod and flywheel?
LMAO, 45 Ib spings!!! That must have been a pain to put on! Yeah, 8+ is a lot more than I realized at first. I think I will be shooting for something around 7.22, and even 26 lb springs are a little light if you're trying to turn the motor that high. I'm building a motor right now with a .308 cam, 2:1 rockers and 45 lb dual springs, BECAUSE I'm aiming for the 8k+ range.
Not going to pretend I'm some motor guru, but 22's will likely float well before 8k with a cam that big.
Just my opinion...
Valve spring compressor, it's pretty easy and done in just a couple minutes. By hand, yeah, a pain would be just the beginning of what I'd call it if I had to do it like that.LMAO, 45 Ib spings!!! That must have been a pain to put on!
Oh good, I would have probably shot myself after trying to get those in by hand. The 22's I just put on were difficult because the valves would slide down with the tiniest touch. After about 20 min of trying I put compressed air into the cylinder and they went in easy.Valve spring compressor, it's pretty easy and done in just a couple minutes. By hand, yeah, a pain would be just the beginning of what I'd call it if I had to do it like that.
Yeah, with the head still on the block it's definitely a cursing session, sometimes even with 18# springs. Going to stainless valves (which I pretty much always do) you have to pull the head anyway, so after struggling one too many times, and wanting to throw things across the shop, I decided I'd give the spring compressor a go, and am very glad I did.Oh good, I would have probably shot myself after trying to get those in by hand. The 22's I just put on were difficult because the valves would slide down with the tiniest touch. After about 20 min of trying I put compressed air into the cylinder and they went in easy.
It is my understanding that balancing only helps in multi cylinder engine. I have had many V8 engines balanced. But that is a whole different process.Seems like I have read that you cant truly balance a single cylinder engine. There are a lot of posts concerning this on Bobs.