ShortBusRiot

Is it possible to make a 4 rotor with the rotor housings from 2 13B's? like just continously bolt them together and make a custom E shaft, intake and exhuast? Like these below can you just kind of make it like your are building a 13b but add 2 more rotors. Is it possible?
BTW, it would be N/A.

(Picture of Renesis Housings and rotor)

CrackHeadMel

iTrader: (2)

yeah, but it would be expensive, im not sure about using the renisis housings though, everytime a thread would come up about making a 3rotor out of renisis components it was shotdown due to some issues with the side exhaust ports

CHEF_EG_1

This is what my "Project: Chefasaurus Rex" car is. a 4-rotor made out of 13B parts, carbed, n/a, LOTS of nitrous, all stuffed in a 1st gen body, and built specifically for the top speed run @ Bonneville.


Feel free to PM me with any questions about it, as I have it all done on paper, and I'm waiting on my loan(s) to get approved.

Rx7carl

Chef, what about the oiling system? You goin multi stage dry sump? I would think youd need to feed the oil into more than one place to keep it from getting too hot on one end of the motor.

CarmonColvin

How do you go about mounting the stationary gears to the two 13b intermediate housings? Wouldnt it be easier to use 20b intermediate housings that already have a means to mount a stationary gear?

I know the stationary gear problem has been solved before (in a 3 rotor made of 13b parts) but I never heard a good explination on how to do it.

Good luck with your project... BTW: what do you estimate as the HP necessary to break the 260+ MPH record?

Bridgeported

Just from seeing the power of other "stock chassis" cars make to reach 240-260 mph... I'd say around 1300-1500 is necessary.

CHEF_EG_1

850rwhp from the engine alone, add in a 500shot of nitrous (yeah, yeah, I know...flame suit on)... and I *should* be in about the mid 1200rwhp territory.


According to all the physics calculatiuons that I and some other people have come up with (including the Lead Professor of Physics @ Illinois Wesleyan University), I should only need about 800rwhp to get to my desired goal of 264. I am OBVIOUSLY gonna test the car to see what it can do before even adding the nitrous, but it is already planned on being included in the setup. If, for some magical reason, that I DON'T need nitrous, then I can just sink more of that money into the paintjob or something frivolous... like seats.


And as far as building the engine, as much as I want to do it all myself, I simply do not have the equipment to machine the parts I need to do this kind of stuff. Hence, MarvelSpeed is doing most of the engine build stuff.

And about the oiling, it will either be a dry sump adapted from a small block Chevy, or something similar, in order to keep not only costs down, but custom fabrication work down (there's already more than enough with this project).

Feel free to pm me, email me, IM me, whatever.

Email: chef.eg@verizon.net (put "4 rotor" in the subject line)
AIM: ChefBoyEG
Yahoo: the_studly_chef

CHEF_EG_1

You're close, but WAY high. I'm just using the American logic to get my goal (bigger = better, more = better, more + bigger = SHIBBY!).





And because I'm chopping the car 2", it bumps me up into the "modified" class, and being that it IS an RX7, it takes me out of GT class, and bumps me up into Sports Car class, and if that isn't enough, since I have planned on using nitrous since the beginning, it bumps me up TWO engine classes... so my 2.6L engine has to compete against all the 4.7L - 5.6L engines.


Oh well... it should be fun to see all those guys' faces when a little first gen RX7 stomps the dogshit out of their precious Mustangs and Corvettes.