NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   -   Rotor Lightening... (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/rotor-lightening-42822/)

orange 01-10-2005 02:52 AM

With the RX8 rotor's I understand you have to get the RX8 seals and springs and that you'll need to run the RX8 stationary gears as well.

jackboots 01-10-2005 10:09 AM

Hey, let's just buy a renesis and tell everybody it's 13b!



[clappingdustfromhands]Problem Solved[/clappingdustfromhands]

GMON 01-10-2005 01:06 PM


Originally Posted by mike_rudy' date='Jan 9 2005, 12:00 AM
Could someone possibly post some websites up of companys that lighten rotors peferably usa/canada? thanks,mike




Anyone with a milling machine could do this.

FikseRxSeven 01-10-2005 01:35 PM


Originally Posted by jspecracer7' date='Jan 10 2005, 03:24 AM
You know you have to cut the rx8 rotors to fit rx7 apex seals right? Also side seals may be an issue.






well i kinda knew that also,, but since he's drastically changing the rotors by lightenning it, im sure he has resources to mill the apex seal seats and clearance side seals as well

Shane.Trammell 01-10-2005 01:40 PM

just make them out of titanium!

crackheadmel 01-11-2005 06:10 PM


Originally Posted by Shane.Trammell' date='Jan 10 2005, 11:39 AM
just make them out of titanium!




If your reffering to titanium seals, its been tried.. didnt work. titanium is not smooth (cant rember the exact word) it caused alot of wear on the housings and wore them out in a matter of min's. the thread is on rx7club somewhere, probably a year or more old





-Jacob

diabolical1 01-13-2005 07:06 PM

i believe i read somewhere that Mandeville still lightens rotors and balances rotating assemblies.

FikseRxSeven 01-13-2005 08:03 PM

did a quick research, and rx8 rotors have shorter apex seals, and the side seals are clearanced 4x more than the max clearance for a 13b due to thermal expansion from the side port exhaust.

DJ Blu 01-15-2005 03:51 AM


Originally Posted by Shane.Trammell' date='Jan 10 2005, 02:39 PM
just make them out of titanium!






also the problem w/titanium is that it is not well suited to appliclations of high temperature... seals and rotors definately qualify i think.


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