turbostreetfighter> couldn't you just make a template
to cover all but the dish of the rotor, then spray weld
each dish with a pre weighed amount of material then
put the same amount on each face? they wouldn't really
need to be machined after, and should work fine.

matt

 

that is kinda what the plasma process does, that much weld would surely warp the rotor!!


MWW

 

Why wouldn't anyone make these, it seems like a N/A engine woudl be just fine with a 10-11:1 compression ratio. Maybe we should try to get someone to make a bunch But hopefully the Rx-8 rotors will be compatabile.

 

screw 11:1 how about 13:1 I want to see what padilla can do to those $&%%! little hondas with REAL high comp rotors

 

people dont make em cus the gain isnt worth the hassle, 9.7 - 11 would prolly only be like 30 hp maybe less

 

I think the gain on upping the compression would be more beneficial to a rotary than to a piston engine - it seems almost every modification is actually...
Afterall, look at how much past NA rotaries benefited from raising the compression just a little.

Most people would rather have a turbocharged RX-7 when thinking about serious performance gains so 'they' probably don't make them because there hasn't been enough demand/market for them - not because the gains wouldn't be much.

 

This is probably a nutty idea... but if you just wanted to make a drag motor that didn't have to last a long time...

Just drill some holes in the combustion recess and bolt a plate on there to up the ratio.

B

 

FUNNY, i was thinking the same thing!!! use some flat head SHCS's and then weld them so they will not back out!! i think you would need to machine the recess so that it is flat but it would work...i think!


MWW

 

So that the materials expand at the same rate why not take some junk rotors and have them melted down and molded to what ever shape you want them? Then weld those into your good rotors. You could even use another rotor to make the mold so they would fit perfect.

just my .02

STEPHEN

 

I am waiting for someone to make a set of Titanium rotor's (high or low comp.).

I think if enough of us got together - we could get some Formula 1 machine shops to make them up. Titanium is much cheaper now.

I friend of mine here works for Ilmor Racing Engines (McLaren) Come on - let's do it!

 

Rotor, you really want to spend some money huh? Do you have any idea how much parts for F1 engines cost? Either way Titanium is nice and all, but if you want the F1 experience and materials why not go for broke and use AM162/AlBemet (a cross between Aluminium and Beryllium). You will then have a mix of the 2nd lightest metal there is (Beryllium), and the properties of Aluminium (heat capabilities, etc.). It'd be nice, but I doubt many could afford it. Get a quote if you can though.

 

Trouble is, it would be hard to get the quote done - as you would have to pay for a quote up front. They would have to tool up etc. etc. Work out how many are to be made - he list goes on.

But when Mazda team up with Pro-Drive for Le Mans - anything could be possible

 

the problem with titanium is not so much the material cost but the machine time alone. for instance the IPM (inch per minute) on aluminum with a .500 TiCn coated endmill is approximately 30 for a .625 depth of cut. with titanium at only a .25 depth of cut is 2!!!!! so imagine the time it would take to cut a rotor out of a piece of stock! off the top of my head i would say around 3000.00 each!!!


MWW

 

Just think it each forum member donated .25 cents you'd have enough money to get a set

STEPHEN

 

AlBeMet is awesome stuff, wayy to expencive though, they dont use that anymore in F1 engines since beryllium was banned, now they use aluminum ceramic matrix stuff ( ceramic fibers in aluminum, kinda like metalic carbon fiber )

 

Just for my own personal amusement marcus, could you make them out of Aluminum or some similar light metal.