RotorMotor

iTrader: (5)

thats not necessarily true... what parts would be expensive to fix? even if you blew up your entire motor, as long as you didnt break the eshaft, then you can just go get some comon stock parts to rebuild it... no worse than any other rotary

TT_Rex_7

Well when its time for a rebuild, you can expect twice the cost for obvious reasons. Many people here have problems keeping a 2 rotor running without it going down the *******, I wouldn't say that a 4 rotor would be easier to keep running better. How many people would you trust to tune your 4 rotor if you had one?! One mistake and the hole thing could take a major ****. Granted that it isn't necessarily true, but chances are if something goes wrong, its going to be bigger then on a 2 rotor.

If thats really our Ferrari, then I appoligize. If you have 100,000k+ laying around then by all means go for it!!

-Alex

RX7WEEE

iTrader: (16)

HAHAHAHAHA OMG LMFAO you ALL OF THEM if you really want to do a 4 rotor swap its do able. I'd try and contact scoot if you could.


this guy live's erally close to me http://members.tripod.com/~grannys/4rotor.html read through that.

you have some NICE cars buddy is that NSX yours also?

edmo7

"you have some NICE cars buddy is that NSX yours also?"

hmmmm.....I don't know if I should answer that one.....don't wanna get flamed even more tonight...

Rhode_Dog

https://www.rx7club.com/showthread.p...ht=Scoot+Rotor

https://www.rx7club.com/showthread.p...ht=Scoot+Rotor

https://www.rx7club.com/showthread.p...ht=Scoot+Rotor

From what i have read its actually built using 12A parts. So it wouldn't be nearly as heavy or large as the 4 rotor built out of the 13B components. The link below is of a car with a turbo 4 rotor built out of 12A parts too.

https://www.rx7club.com/showthread.p...&highlight=23A

Search my friend, this is what 5 mins turned up.

TT_Rex_7

Just because he posted up those pics, doesnt mean he really owns any of them . I can park next to a friends Ferrari, or just some strangers, and take a picture. If he takes a pic of himself standing in front of both with the windsheild wipers on and only the Ferrari's lights on with the rx7 on the right and the Ferrari on the left, then I'll beleive him

-Alex

SamuraiSam

edmo7>all of you ASSH0LES

Edmo, good luck with your 7. If I had your kind of money, I would build a 20b third gen- Bridgeport the 20B and toss a GT42R on it. It will still handle like a dream and go like a bat out of hell. But if you decide on a 4 rotor, I am sure you are one of the very few people on this forum that could pull it off.
Peace.

RX7WEEE

iTrader: (16)

I knew that one of you haters would post something like that. i was going to say it in my 2nd post but i didn't.

ya he just "drove out to a freinds house in like 1 hour to go get that pic put it on his computer and then post it on this forum RIIIIIGGGGGHHHHTTTTTT........

TT_Rex_7

It was just a joke, I have no reason to hate on anyone. Most of the time when someone comes on here and says all of this they are usually full of ****. I couldn't even count on my hand how many people have posted up rides of cars that arn't theirs.

-Alex

RX7WEEE

iTrader: (16)

Oh okay i thought that u were still serious... cause i was gonna pwn u....

TT_Rex_7

If your really serious about doing this, shoot me a PM. I'd love to help out on the machining on this at my shop! I'm sure any shop you speak with will charge you like 10 grand just for the e-shaft, wich I could do much much MUCH cheaper.

-Alex

TT_Rex_7

What makes you so sure he took just took the picture?! LOL

-Alex

Rhode_Dog

A N/A 23A in an FD would be nice. Custom subframe, dry sump oiling (mount engine lower), and so forth.

But thats merely a pipe dream.

RX7WEEE

iTrader: (16)

dude... dont start ****

I dont start crap but i will finish it so lets all just be nice!

what kind of shop do u work in?

seems most on this forum are pestimistic, am i the only optimistic person here?

TT_Rex_7

I'm part owner with my father of H & H Tool Shop. We do work for Military systems here in Nashville, medical parts, molds/panels/ribs/and DOT plugs for Birdgestone/Firestone and few other odds and ends. 4, soon to be 5, CNC mills, 2 CNC laithes, 1 waterjet, 2 wire edms and a few manual mills and laithes. I would love to help machine parts for a 4 rotor, just wasn't all that anxious to tear my FD up, I would much rather find a wrecked one and bring it back from the dead!! If you'd like you can question me and I'll post up some pictures lol.

-Alex

edmo7

Thanks for the offer TT RX7, but I'm sure if I send my car to a shop like Scoot that have already performed the conversion, they would have sufficient and reliable contacts for parts, such as the eccentric shaft.

GEM 13B

geez, just do it, theres more than a few 4 rotors here in australia, some pp'd others turbo'd.

http://ausrotary.dntinternet.com/for...hlight=4+rotor

http://ausrotary.dntinternet.com/for...hlight=4+rotor

http://ausrotary.dntinternet.com/for...hlight=4+rotor

my personal favorite is the 3 rotor fd on the following site. go to customers ---> street cars ---> allistairs rx7 nice :p
www.cityperformancecentre.com

t-von

iTrader: (8)

There is a place in California thats made a 4 rotor fd. I forget the name. Also I heard at there were guys over in New Zealand that make these engines.

kenn_chan

I have been waiting for some self righteous ******* to get it handed on a plate to him ever since i first signed on here and saw all of the flame wars that go on....If you really have the cars in that photo, I say right on Edmo7, as you are a much bigger person than I am, and much bigger than 99 percent of the people on the forum.

If you are really interested in scoot, I will have my wife get there contact data locally. PM me if your serious

shipping your car here would run about 1500 plus or minus shipping back costs more maybe about 2800 last i checked. its cheaper to go on deck but more dangerous for the car. going in a conex box container is better.

I would honestly think that the body work is gonna cost more than the engine though as the type of work that needs to be done to keep it togethor afterwords is considerable. dont worry though as here in Japan anything is available its just the cost that gets most of us, even me and I live here.

anyways like I said Right on!

edmo7

Thanks for the offer! I just PM'd u. As for the bodywork, I'm going to pass on that...I was really only interested in the engine coversion + associated mods.

RotorMotor

iTrader: (5)

ok so how are these eshafts made??? i still havent gotten a concrete answer... 2 or 3 piece??? are they made from scratch or are they made from 13b shafts?? if anyone has any REAL information on this stuff then please post it. as for all the kids bickering... STOP IT. if he says he wants to do it and has the $$ COOL! i wouldnt spend the cash personally, because you can do "just fine" with a 20b or V8..... BUT if you want to front the costs for engineering these things, and as a result the cost comes down... then yes, i would buy some parts.

really where is all the cost here?? after everything is programed into the CNC machine, you throw in some metal and out pops out a 4 rotor eshaft, and counterweight right? someone just has to go through the development process ONCE, and thats it. beyond the e-shaft, counterweight, and tensioning bolts, the rest can be done basically anywhere capable.

lets have a SERIOUS discussion and stop slinging feeces.... i hate to see what could become informative (or if nothing else, interesting to read) threads degrade like this... its a common theme on this forum and it makes me want to leave . people, if you are adults then act like them... if you are not an adult then "pretend" if only for my sake. ok, please resume
-heath

TT_Rex_7

First off I have no clue if it would be a 2 peice, 3 peice or whatever, havn't looked into it that far.

As far as all the costs, theres several things to look at here. There are still many machine shops that don't even have CNC machines. Also, you have to have a large enough CNC lathe to turn these parts.

As far as where the pricing comes from, you have the price of the inserts, material, labor, and programming.

Now that I've covered that, it also takes a capable programmer. Not all programmers are the same!! I've gone through several young hot shots out of college that didn't have a damn clue what they were doing. Half those jackass's that you see on television dont have a clue what they are talking about either, they make everything seem like its so complicated just to make themselves look better.

When machining the lobes, you have to be careful and aware of clearances, one wrong move and you'll bash the turret right into the part along with the holders(not a good thing) You also have to have a fairly accurate CNC lathe to pull everything off. Obviously these parts are pretty critical. After the lathe takes a cut from the edge of the part towards the chucks, it has to be consistant. Many times if you measure a part thats been machined on a lathe the dia. will vary between several thousands of an inch from 1 side of the part to the other, not exactly something you'd want on an e-shaft. Thats usually caused by 1) parameters in the CNC controller being off (caused by the person that did the initial setup on the machine) 2) a lathe thats simply not very accurate and usually just a "cheap" machine or 3) the programmer. Theres many other things that can cause it also, wich would usually fall under the machinist from not setting up the machine properly or something as simple as a small chip being under one of the inserts.

Now, usually for a company thats machining something for the first time, the part isnt going to come out perfect on the first run, so thats added costs for more material, and possible alterations to the program.

The most important thing is a skilled machinist (someone like me lol j/k) I've had several employees that have been machinists for 10-15 years and STILL don't know exactly what they are doing!!!

This is getting pretty long and there are still many more things to it like balancing e-shaft and everything else. The whole point is that not just any machine shop can do this, and theres alot more to the process then what you stated. Hopefully this will give you, and others a general idea of what it all takes! If you'd like I can go more in depth about it all, but I think what I've stated so far pretty much sums it all up in simple terms.

Its not hard at all for a capable shop. The only problem is finding a capable shop. Theres not many of us out there anymore!!

-Alex

Edit: More then likely it would also require a CNC lathe with live tooling wich many machine shops don't have either.

keynote22

Contact Jim Downing. He might have one or be able to help you. He is selling one of his cars with a 4 rotor already in it....it's a race car but it might be a good start.

http://www.mrccfl.com/jdown.html


As mentioned, there is a company in California that does it as well...I was thinking it was Elite but their site is down so I cant verify.

teamafx

iTrader: (4)

there are a few places to get a basic 4 rotor shortblock, assemly and components differ from (2) 12a's put together to other setups, price I got was between $9k and $35k for just ths shortblock

Narfle

iTrader: (16)

still hatin