Kentetsu

You know, this entire thread is kind of pointless in my opinion. I mean sure, if you throw a V8 in it she'll have lots of power. Ok, no problem. And I'll bet if you threw a V12 into it she'd go even faster.

So maybe the car wasn't designed with a V8 in it, big deal. The car is a rotary and that's what makes them so cool (again, in my opinion). Just because you "could" put a V8 into it doesn't mean you should, or shouldn't. Its just another option for someone who does not have the love for the rotary that some others do.

As far as doing something like this to a Z, I would have no issue or bad feeling about that at all. Sure, the straight six that it comes with is an awesome motor, but its not unique like a rotary is. Besides, the engine bay of the Z car is perfect for a V8. I have owned a few Zs in my time, my last one was a '73 w/triple webbers and I loved it. But my dream car is still a Scarab conversion with a 350 in it. LOL. So anyway, here I am throwing my 2 cents into this "pointless" thread.

mckinneyml

The number of modifications to a car does not have an impact to me. Maybe to a collecter willing to pay 100 fold of market value for the one rare car that sat in the garage of a retiry in Sun City, AZ that only drove the car to the grocery and to church on Sunday. The one that accumulated less than 2000 miles per year, flawless paint, and new car smell.

To me you are mixing your comparisons, the difference between a stock rotary or a ported rotary a stock V-8 or a V-8 with a modified cam, the difference does not matter. The sole of the car is still the same. To improve with modifictions is just refining the sole of the vehicle.

But to entirely switch soles changes the feeling of the car. A rotary was made to be different. To brake peoples perceptions "That if you are going to make a engine it must be made like this!". To strive for alternative solutions to complex problems.

To me a person who put a V-8 in a RX is the same as one who would put a V-8 in a EV1.

Pele

iTrader: (28)

I dig your other projects as well. However, I'm inclined to say that the rotary tow truck does indeed own.

It gives me confidence that the rotary will have enough power to do actual work when I put one in my truck... When the stock bulletproof G6 engine dies... Whenever that is.

Pelezo

[DELETE]

Pelezo

Quote:

Originally Posted by Phiber Optik

A properly designed turbo motor can be very costly, very few have done it for less then $2000

I drove a V8 (Thunderbird) to work everyday and let me tell you, it's not RELIABLE nor FAST at all.



All these people who worship mustangs are idiots in them selves because all those minor mods you just mentioned can take up to 1k to get to and believe me, I know the biggest Ford Racing seller "Dan Newman" and it's not cheap to get any V8 to go fast.



Cobra's, now, you've got to buy one of those in order to mod it, too much money but it’s a fast car.



I’ll stick with my slow rotary until I can make it faster.

Jbar3987

The simple fact that it's a novelty makes it fun.

How many people do you get asking you what a V8 is, or where they can get one?

The rotary engine is cool b/c its original.

Plus its funny as hell when someone looks at the engine for the first time .

Phiber Optik

iTrader: (2)

Well you have the bad example with the 302 in a thunderbird. The 89-93 H.O. 302 is a great motor, in stock form it will blast the bulky (3200+lbs) mustang to 60 MPH in 5.2 seconds, which is nothing to laugh at.

Bang for the buck I can't see anything beating a V8 swap.

That said, i'm currently installing a blower on a 13b in one of my rx7's, when it's done I will be swapping it out for a V8 unless the results are more then I expect.

rotary emotions

Well, I can't say anything about prices in the US (in Europe V8's aren't all thet cheap), but I really would like to see how much it really costs.
If you compare a new or rebuild rotary with an old, oilconsuming V8 it's sure going to be clear what's cheaper.
But if you compare a rebuild TII with rebuild V8, it's a different story, I guess. Plus, most of us already have a rotary engine, don't they? So you can spend money on that one.
Most important is the fact that a heavy V8 upsets the balance: whatever you V8 addicts may say, it's not nice to add so much wheight on the front axle. A V8 is larger in all dimensions, and to that comes a very heavy set of manifolds (don't tell me 2 times four pipes aren't heavier then a header for a rotary), and more carbs (each adding wheight) or a heavier plenum for EFI. All this is added in the nose, and I really can't believe this won't change behaviour on track.
Drag-racing might be cool with a V8, but real track racing is whole different story.
Don't forget Rx-7's have been very succesful in racing just because of this lack of wheight.
And, as said before, comparing a 1.2 or 1.3l Wankel engine with a 5.0 (or more) piston engine is really not very serious. Even if you see the 13B as a 2.6l, you'd still need two to have the same cubic inches. A 26B would eat any V8 alive, for sure (500-600hp, NA, god knows what in turbo).
If you compare a 2.3-2.6l with the 12A/13B, it's very simple: pistons suck.
Esp. once you go for bridge or PP.

rotary emotions

BTW, just read the first few post here:
https://www.rx7club.com/race-car-tech-103/ultimate-fc-376112/



That's a 350hp FC screwing up a Porsche 911 (996 model) and a Z06. And that's an FC, which is heavier then a SA/FB. On track, you can't beat a well sorted rotary.

SSRx7

So if I mod the 12A with some performance work, and stick it in a mid 70's Toyota Carrola, it is changing the sole of the car?

I agree 100% weather it is to a rotary engine or a piston engine.


No offence taken. I have no problem spelling it rotAry instead of rotOry. Wait, I didn't spell it rotOry. I spelled it rotory. . It is hard to flame someone who doesn't mind criticizm and wont let flaming affect him (or her- not sure how many ladies are present, so I have to include them, right? Gotta be politically correct here, don't we.)
Seriously though, I did notice that someone was spelling it rotary, and thought they had spelled it wrong and was gonna point it out to them. Good thing I didn't, eh

To everyone, have fun fixing or modding -whatever you drive/own.

Later,
Bill- the owner of currently a rotAry rX7, soon to be a piSton rX7

rotaryforlife

Most v-8 enthusiast don't like rotary engine because of the fact that we get over 500 hp per liter (1.3) and they can't. Yes the V-8s have a lot of torque but in an fb that would work against you in a drag racing unless you have a tune or modified suspension. You can probably buy a cheap v-8 a the junkyard usualy an oil burning engine, but once you rebuild it add good heads, intake manifold, carb,
ignition, strong internals and add the cost of the swap you would be spending as
much or more than modifiing a 13B.

mckinneyml

Sorry I'm not fimilar with the Toyota Carrola, if you where refering to the Corolla or Corona. Um ya I would say that it is not the same. In one case it was designed to be an econo box that got good gas mileage in the time of gas shortages. Putting a sports car engine in it would be changing the feeling of the car and it would no longer be an econo box.

mattp

iTrader: (3)

Quoted for emphasis.


It's nice that the Internet gives everyone a voice, but too bad that so many takes advantage of the fact.

DAVID GRIMES

advantage ? Unless you type really slow, don't know very many words, or are netbashful, you have the same opportunity to post your opinion as anybody else.

Also, the quote you provided seemed to indicate that there's alot of TELLING of others what to do to their cars. Correct me if I'm wrong, but most of what I post and read is forum members stating their own opinions, facts as they know them, and what they've done or would do to their cars. Take it, leave it, bash it, or think about it for awhile, but it's OPINION. Nobody's spending anybody else's money that I can see. This is what a forum IS !

rotary emotions

Well, not to say you ain't right, but aren't we getting slightly of-topic? Obviously the strongest points about a forum is that people can have different opinions.
But some facts are still facts. Like: a V8 is a heavy engine. Or: the V8 most people use to put into a Seven is actually a museum piece.
If I'd go for a piston swap (not likely) I'd atleast go for a modern engine.

mattp

iTrader: (3)

That is what I was talking about. Too many opinions where facts should be.








http://www.torquecentral.com/forumdisplay.php?f=11 if you want info on v8 RX7s by the way. And there's just about as much rotor ignorance over there as there is piston ignorance over here.

NickBW

This sounds like an interesting challenge for GRM

MrDino

quick question: i understand a 5.0 would add 100 pounds + or - a few pounds, but how much of that weight is actually over/infront of the front axle? Wouldn't only the weight in front of the front axle (moreso than the original 12a or 13b) make the car handle worse/oversteer? Just trying to learn some.

rotary emotions

can someone tell me the exact wheight of a long block (carbs, headers etc included) of a V8 and maybe of a 13B to compare? I don't believe it's going to be "only" 100 pounds.

QuasiMofo

I am not a good example but my Supercoupe mill weighs exactly 341 lbs w/ piping. The engine makes roughly 325 horsepower and about the same in torque if not a little bit more. I never intended to build a PX7 I really wanted to install a 40k FD3S in my Datsun Roadsterd but my deals and job fell through in the same week. A friend had a FB shell that had already had a 302 in her once to fit into my budget. I already owned the wrecked Tbird... Fixing the bird would be around $2800.00, Buying the FB was $100.00. Simple economics here right?

I will build a rotary Roadsterd but for now I am just getting crap moving out of my yard!

rotor vs. piston

I get tired of reading these post sometimes, though I still torture myself. But this sums up how I see things as well

I think the people on this forum with the strongest opinions seem to know the least about cars. If you have not personally done engine swaps and suspension mods to a few cars, then you definitely don't know enough to be telling the rest of us what to do to our cars.

kleinke

Yes go for the modern engine. Of those I have seen, the most common V8 that people put in their RX-7 is the LS-1. This is a popular engine and getting cheaper. When compared to the rotary with turbos and intercooler it is not very heavy, and the rotary intercooler is in the extreme front of the car. A 500hp LS-1 is not even working hard, and it will last longer and get better fuel economy vs. a 500hp 13B rotary. If you must switch to a piston engine at least get a good one, not the antique cast iron Ford.

Eville140

Guess you wouldn't care much for my old ford pinto powered rx7 then
http://www.eville140.com/

Later
Randy

RUBY7

Simple, cram your V8's in whatever you want, just leave the only Specifically designed (ceptn RX8) car for the rotary motor alone. This aint about fastest is it really?

These are RX7's, RX7's are ROTARY POWERED!

Latin270

Wouldnt a 3rd gen Rx7 smoke a 5.0??? I think it can! No wait I'm pretty damn sure it can!