Thanks for the site with the good illustration ... but why would mazda call it a 1.3l if it were actually a 2.6l?

It's not Mazda's fault everybody takes 2 cycles instead of 1! They get the job done in 1 rev, after that it just repeats. So your 2.6l piston motor is really 1.3l/rev its just that its a different 1.3l every other cycle.

I guess mazda just wanted to highlight that the motor is effective as BIG as a 1.3 it just breathes twice as fast :)

-pete

Hmm ... food for thought.

so how's the weather down there in Australia?

Nice to see more people brave enough to change out the rotary engine. People give you shit but at the end you will have something most people on this forum want, but just won't admit to it

and what's that? hehe

Perfect beach weather, pity I'm at work :mad:

-pete

the stock tranny will work for awhile...but I wouldn't go with the 6 speed S15...it's actually WEAKER...

Best Combo IMO is the S14 Tranny with the S15 Engine.:D

Good luck with the project Shaun. It should be fun! Forget all the crap that people are giving you...you're trying to be different and do it your way...I wonder if these same people gave JimLab the thumbs down for his V8 swap:)

Riiiiiiiiiight. You're brilliant. This supports my contention that so many people buy this car for the wrong reason -- how it looks.

By the way, tnt, you should go ahead and remove the "RX-7" badge, the floormats, and the door sill plates. I don't know what you're going to call that show car, but it's not an RX-7 anymore. (And for clarification, my definition of "show car" is any car that is entered into a show. Your interpretation of my comment is actually one form of "trailor queen.")

Anyways, look into that TRUST 6 sequential if you're serious. It's on the orange Signal S15 and several other cars. You'll probably win more trophies. ;)

Why?? It's still an RX7, but with a different engine. If you see it driving on the road, would you call it "RX7 without rotary engine"?? I think not

I think this idea is killer. Should be sweet when its done. I give the man credit for having the balls to do it! Can't wait to see it when its done!

The engine is a 3.9 litre, full stop. The capacity is simply swept vol times number of chambers, exactly the same as a piston motor. The fact that three chambers surround the one rotor has as much relevance as 3 pistons using the camshaft in a v6, basically none.

lol!

Well I wont argue then. Better tell the SAE - they have it wrong too. Morons.

-pete

If they think its a 1.3 or 2.6 then they do have it wrong. Not suprising though, the manufacturers have managed to confuse almost the entire world on this issue.

Who cares ... It's fast, looks good, and leaves the competition looking like this ... :stick:

you forgot the "pumped up fourbangers sound like ass!" part of that equation.


j

It goes like this. Mazda lie about their capacity, so dominate racing and get banned. So there are less rotaries in racing which equates to less rotaries sold. Which is not good for rotaries.

I have read your posts about the displacement issue, and I agree there are 3.9L worth of chambers, but I also think that displacement rating is at least as misleading as the 1.3L rating. I actually think Mazda got it right, but the 1/2 factor in all the 4-stroke piston engines has become the standard, so 2.6L makes the most sense for a 13B's displacement when compared to such engines. And the multiplication factors that are applied in racing rules that allow rotaries tend to be in the 1.8 - 2 range, not 3, as your 3.9L displacement rating would suggest. Holy crap, I am totally off topic!

tnt, I love the rotary, but I applaud your efforts to swap the SR20 into the FD chassis. Both parts of the car are great (engine and chassis), so I think it is cool to see what the chassis will do with other engines. Please keep us posted on your progress.

-Max

You remember my comparison to the 3.9L six that was geared up 1.5 times? Still no one has come up with one single reason why that is not valid. Every single figure between the rotary and this engine matched, every figure. If the capacity doesn't match this engine then it is the only figure that doesn't. You've gotta at least think that is a little suspicious?

Here's one more thing to get you thinking. If you raced a 6 cyl car and for some reason someone stuck a 1.5 times gearing up at the output shaft of this engine and you couldn't change it, what would you do? You'd increase the diff ratio 1.5 times, right? Don't most rotaries run a diff ratio of approx 1.5 times of similar vehicles, eg the supra.

I have never entered any of my cars in shows DK, the only thing that i enter them in are races and your not to far away so if you want i will be more than happy to drive SR20 powered rx7 anywhere close to half way for a little grudge match, because personally i car nothing about looks, you are probably one of those ignorant people that bash all cars that are not rotary powered or have the Mazda badge, so if you want i will bring My Civic and wear your ass out with that to, as far as everybody else i do not mind the ridicule, to me this is NOT that one thing is clearly superior than the other, however i think that the engine are pretty comparable in HP and both have huge aftermarkets behind them which is good for my business, I know FD's forward and backward and absolutely love the car just not the drivetrain, i appreciate the support and at the very least it is something new to talk about instead of all the same recycled posts.... As far as Jimlab goes i am not a big V8 fan at all i can not stand them BUT, I am a big fan of 1)something done right which in his case is true, the amount of money, time, planning, and level of fit & finish is just unbeleivable, and 2) anything that is fast and that thing should haul ass.. so i am interested in what he is doing and am happy to see him doing it..

Shaun
Thanks for the support, Oh and Artguy rotaries are not the best sounding beasts in the world, to each thier own..

Not really a valid point...considering what he is replacing sounds even worse when "pumped up"...

Right click save as to hear the wonderful sounds of a PUMPED UP rotary

TNT,

I give you props for behaving very mature in the face of all these negative and almost always immature criticisms. But then again, I guess you probably expected that:p:

TNT, the debate on sr20det vs. 13B potential/reliability/driveability aside I commend you for being different. I commend anyone for breaking new territory and trying to experiment with new stuff. It's only logical that since you have experiance with sr20det's(and a business dealing with them unless I missed something) that you would swap a sr20det into it. Not saying that it's a bad thing but if someone has a business building corvettes and camaros, then get's rx7 body you can pretty much guess which motor is going in the rx7.

On another note, I don't see any need to de-badge it. Do it if you like, if not then wtf does it matter to everyone else? I think it's cool that Jimlab de-badged his door sill plates and all because it's a nice "different" touch but you're car is still an rx7 (I know there are tons disagreeing right now but do we rename every car that gets a different motor put in it then what was "factory"?) whether it has a different motor or not so what's the harm in leaving the badges? (Nobody in the U.S. seems to know what a FD is anyways)

The "rotary purists" telling you do de-badge it are the same sorts people who hated on Jimlab when he first started his project and everyone who thought of something similar. (Does it really matter if you see a FD driving down the road and it's says rx7 but isn't rotary powered?)

Oh and you should take Jimlab's famous approach, it's your car/your money so you can do what you want with the car.

Have fun and keep us updated.

What color is that FD in the vid?

y the hell would u does this ??? u could easily achieve 450 with a turboed rotary engine !! u like to smoke crack ??