Topic: Carillo Rods and Higher redline, is it useful?

[eldar]

Low idle will also be lumpy from the cam profile. Think of the muscle cars people build. The thing sounds like it will croak at low idle and it rattles like hell. Of course this will not be as pronounced since a 4 will turn faster at idle but the engine may not feel as smooth as the stock. As for doing 150, where are you going to be able to do that? I dont know about where you live but around here, the roads themselves would prevent that speed on these old bikes unless you want to drop a crap load of cash on new suspension components.

But hey, when you get busted for going 150, let us know and I will run down and get your bike out of hawk and take it home!   You WILL be in jail!

[GroovieGhoulie]

Low idle will also be lumpy from the cam profile. Think of the muscle cars people build. The thing sounds like it will croak at low idle and it rattles like hell. Of course this will not be as pronounced since a 4 will turn faster at idle but the engine may not feel as smooth as the stock. As for doing 150, where are you going to be able to do that? I dont know about where you live but around here, the roads themselves would prevent that speed on these old bikes unless you want to drop a crap load of cash on new suspension components.

But hey, when you get busted for going 150, let us know and I will run down and get your bike out of hawk and take it home!   You WILL be in jail!

Tracks, for one thing.  Also, lots of people buy supercars that can do 200+ and never wind them out like that.  It's sort of a bragging thing, I guess.

Regarding the suspension, I've heard there are excellent Ohlins dampers available for the rear and I would fit a set of them with progressive springs.  New bushings and bearings all around, better than stock.  The only real hiccup I'm coming into regarding the suspension is the front forks.  Dont know of a company that offers a drop-in kit to upgrade the front end so I'll have to research that.  Also wonder if there is a company making better triple trees, like 400 Four Store does for the 400F.  Would like a smooth top yoke without the mounting hardware for the handlebars.

Also plan to upgrade the front brakes to dual-disc and the rear to the TLS CR750 magnesium rear drum.

The engine is actually the last thing I plan to do and will be lower priority than handling and stopping, but I still want a firebreather.

[GroovieGhoulie]

100 crank HP from an 836cc engine is certainly possible but you should probably consider the "nature" of the engine that you are planning to build.  This 100hp will certainly require higher RPMs and higher RPMs will require (among other things) bigger ports, bigger carbs, and more agressive cam profiles.

Already planning on that.

The power at the lower RPMS will be noticeably down from a mildly tuned 836 and probably even when compared to a stock engine.  To use your 100 ponies you will need to wind your engine up, much like a modern sport motorcycle.

My main bike is a 400F and on that you pretty much live life between 6000 and 10000 RPM if you wanna get anything done.

The versatile, easy to ride nature of the stock engine will be replaced high strung edgy power plant that starts soft and then comes on like a freight train.

Sorta like a two stroke?  Cool!

I've also got a stocker 750 for most rides.  This would be a toy.

[MRieck]

Low idle will also be lumpy from the cam profile. Think of the muscle cars people build. The thing sounds like it will croak at low idle and it rattles like hell. Of course this will not be as pronounced since a 4 will turn faster at idle but the engine may not feel as smooth as the stock. As for doing 150, where are you going to be able to do that? I dont know about where you live but around here, the roads themselves would prevent that speed on these old bikes unless you want to drop a crap load of cash on new suspension components.

But hey, when you get busted for going 150, let us know and I will run down and get your bike out of hawk and take it home!   You WILL be in jail!

Tracks, for one thing.  Also, lots of people buy supercars that can do 200+ and never wind them out like that.  It's sort of a bragging thing, I guess.

Regarding the suspension, I've heard there are excellent Ohlins dampers available for the rear and I would fit a set of them with progressive springs.  New bushings and bearings all around, better than stock.  The only real hiccup I'm coming into regarding the suspension is the front forks.  Dont know of a company that offers a drop-in kit to upgrade the front end so I'll have to research that.  Also wonder if there is a company making better triple trees, like 400 Four Store does for the 400F.  Would like a smooth top yoke without the mounting hardware for the handlebars.

Also plan to upgrade the front brakes to dual-disc and the rear to the TLS CR750 magnesium rear drum.

The engine is actually the last thing I plan to do and will be lower priority than handling and stopping, but I still want a firebreather.

I haven't seen Ohlins for the 750 but Wilburs and Hyperpro make them to order. Nice stuff too.