RX7Club.com - Mazda RX7 Forum

RX7Club.com - Mazda RX7 Forum (https://www.rx7club.com/)
-   3rd Generation Specific (1993-2002) (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/)
-   -   FD with pistons or rotors? (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/fd-pistons-rotors-905798/)

vh_supra26 05-27-10 11:42 AM

FD with pistons or rotors?
 
I wanted to get a rate of owners with either pistions powered FDs (LSX, 2/1JZ, RB) vs FDs powered by rotors. Poll will be added.

And post a pic of whats under your hood.

http://c3.ac-images.myspacecdn.com/i...192a9d2b8e.jpg

zack4173 05-27-10 12:48 PM

1 Attachment(s)
I have rotors in my 7 but im not against pistons. I would probably go LS2 over anything else, maybe 2JZ. Here is a pic of my engine bay. Your pic made me not feel so bad about my dirty engine bay. We both need to take the time to clean lol.

theorie 05-27-10 01:09 PM

2 Attachment(s)
what about "hampster" - i don't see that as an option...

https://www.rx7club.com/attachment.p...1&d=1274983745

awww just kidding. here's mine...changes in the works though:

https://www.rx7club.com/attachment.p...1&d=1274983956

RedRevolver 05-27-10 02:24 PM

I would take the time to go out and get a pic to post but. It's literally all stock so. use your imaginations. err. rather, memories.

grimple1 05-27-10 03:04 PM

bummer, no option for jet engine.


http://blog.makezine.com/Car_With_Tw...eBay_7.JPG.jpg

vh_supra26 05-27-10 04:58 PM


Originally Posted by zack4173 (Post 10022070)
I have rotors in my 7 but im not against pistons. I would probably go LS2 over anything else, maybe 2JZ. Here is a pic of my engine bay. Your pic made me not feel so bad about my dirty engine bay. We both need to take the time to clean lol.

Haha I been so lazy. I'll do it one of thesedays.

YoshiFD3S 05-27-10 06:20 PM

http://i43.photobucket.com/albums/e3...S/IMG_0573.jpg


http://i43.photobucket.com/albums/e3...S/IMG_0575.jpg

In progress.

:]

evot23 05-27-10 07:00 PM

I've had both, currently in love with the V8
http://i586.photobucket.com/albums/s...Tom5131029.jpg

GoRacer 05-27-10 07:01 PM

I don't know why you you want a Nissan engine or Toyota (lexas, same thing) they are not any more reliable then rotary's. In fact I would not use either if I got them for free. Jaguar being owned by Ford would make sense, but their engines aren't know for reliabilty. Corvette looking verry similar to the RX7 seems to be a very good match especially considering a stock engine has the HP we've wanted to acheive with the now outdated rotary. The GTO engine is a waste in that extremely heavy Aussie body but works well in the FD.

We will see more and more of these conversions becuase the cost of the engines has doubled but the value of the car has decreased in half. Moreover, the conversion cost is about the same as I hate to use the stupid term of "fully built" (as opposed to a partially built engine?) so lets just say "fully modifed" single turbo.

wstrohm 05-27-10 07:08 PM

1 Attachment(s)
Plain vanilla.

hsitko 05-27-10 07:15 PM

Single turbo rotary here. I personally dont like anything about american v8's. I dont like how they sound, i dont like how they are built. I dont like the lack of advancement in technology. I.E. the fact that they dont use coil on plug. They have single runner intake manifold designs, pushrods (seriously? still?), not very well balanced, not a very good hp/displacement. I dont like the power band. I.E. too much low end torque. Lots and lots of things. I picked this car because of how much character it had. Not how many pistons. And after all the r in rx7 stands for something and its not part of your brakes.

jkstill 05-27-10 07:21 PM


Originally Posted by hsitko (Post 10022972)
Single turbo rotary here

same here.


pushrods (seriously? still?)
Don't be so quick to dismiss pushrods.
The design makes for a very compact motor with a low CG.

Don't get me wrong, I love my rotary, but dismissing the chevy small block because it has pushrods is a mistake IMO.

RLaoFD 05-27-10 09:28 PM

Also, the numbers are skewed because the 3Gen section in this particular forum does not represent the actual proportion of owners with different engines. This place is flooded with the Rotary (naturally, since it's the original engine).

grimple1 05-27-10 10:30 PM

Dismissing an engine because of push rods is like dismissing an engine because it doesn't have pistons. they both have their pluses and minuses.


I honestly don't care what people have in their FD. Have whatever the f**k you want. It's all the same to me.



FlaoFD, I think most people have rotaries in their FDs. It's easier to fix/get a rebuilt rotary than it is to fork up the cash for a V8 swap - and it's obviously beyond a lot of people's patience and technical abilities. I'd say that the results are on par with what I see at events and meets.

mattdavispv9 05-27-10 10:35 PM


Originally Posted by grimple1 (Post 10023392)
Dismissing an engine because of push rods is like dismissing an engine because it doesn't have pistons. they both have their pluses and minuses.


I honestly don't care what people have in their FD. Have whatever the f**k you want. It's all the same to me.



FlaoFD, I think most people have rotaries in their FDs. It's easier to fix/get a rebuilt rotary than it is to fork up the cash for a V8 swap - and it's obviously beyond a lot of people's patience and technical abilities. I'd say that the results are on par with what I see at events and meets.

Somebody knows whats up...

vh_supra26 05-27-10 11:56 PM

I'm just trying to get a general idea and have some fun. So stop whining and vote people ;)

oo7arkman 05-28-10 04:40 PM

Single Turbo Rotary here..

I agree that your results will be pretty skewed. Most in this section have the rotary. Just like if you go on the V8 rx7 site most will have a swap.

Personally if I was entertaining the idea of a swap, it would be the 2JZ, or the RB26. Both are bulletproof and can create lots of nice, usable power. And I like turbos... With a turbo V8 you have gobbs of power, but it is not very usable. Traction seems to be a problem with the light chassis on the FD..

Captain_Panic 05-28-10 04:48 PM

Rotary all the way
 
Here's a good under da hood shot.


http://i535.photobucket.com/albums/e...FEngineBay.jpg

habu2 05-28-10 09:35 PM

1 Attachment(s)
only pic I have is when it was coming out of the paint shop

YoshiFD3S 05-29-10 11:51 AM

I've always been a rotary enthusiast, but here's the problem.

I'm active-duty Navy, stationed in San Diego. My car is in Georgia, and has been for over 2 years now.

When I first bought the car with a blown motor, I traded my (at the time) Tech2Motorsports 2JZ Swap Kit (Worth $2,500+) and paid $1,000 in labor for a 13B-RE.

http://i43.photobucket.com/albums/e3..._1824small.jpg

Turns out, the wastegate diaphragm had a small hole in it, causing the car to overboost to 18psi during the initial dyno-tune. The motor blew the next day even after the diaphragm was fixed.

I didn't even get to drive it!!! :[

So 6 hours and $1,300 later....
http://i43.photobucket.com/albums/e3..._1876small.jpg

Finished product:
http://i43.photobucket.com/albums/e3..._4287small.jpg

I made 326hp/296tq @ 11psi and 387hp/251tq @ 15psi on 93 octane.

The motor blew during my New Years visit, and THEN I got scammed out of $500 in trying to buy a replacement engine.

THAT'S why I'm now at the "You know what? F*ck this..." state...

That, and my brother is my star mechanic in Georgia..but once I get the car shipped out here to San Diego, I won't know any mechanics, and I don't know that I make enough money in the Navy to afford another engine or two...

That's my story and I'm stickin' to it.

no_more_rice 05-29-10 12:20 PM


Originally Posted by YoshiFC3S (Post 10026033)
I made 326hp/296tq @ 11psi and 387hp/251tq @ 15psi on 93 octane.

The motor blew during my New Years visit, and THEN I got scammed out of $500 in trying to buy a replacement engine.

THAT'S why I'm now at the "You know what? F*ck this..." state....

That's quite a tale of woe, I can understand the frustration level. I've been there, this is my third motor, but so far three's a charm: it's been flawless. You have to be sure the motor itself and all the supporting components are 100%, you cannot skimp or cut corners anywhere with a turbocharged rotary. Once set up properly (with reasonable boost) they can take a beating.

V8s know their own tune, and I hunt Mustangs, F Bodies (and Porsches) only with a rotary powered FD. An FD with a Chevy motor is a novelty I suppose, but I'd just as soon have something like a Mallet Sky instead, or even a C6. A V8 tune coming out of the single tailpipe of an FD is just wrong.

no_more_rice 05-29-10 12:28 PM

Oh, and inline/V6s know their own tune as well ;)

I really, really love smacking down 350Zs.....they're like flies here

Prometheus 05-29-10 12:44 PM


Originally Posted by GoRacer (Post 10022926)
I don't know why you you want a Nissan engine or Toyota (lexas, same thing) they are not any more reliable then rotary's. In fact I would not use either if I got them for free. Jaguar being owned by Ford would make sense, but their engines aren't know for reliabilty. Corvette looking verry similar to the RX7 seems to be a very good match especially considering a stock engine has the HP we've wanted to acheive with the now outdated rotary. The GTO engine is a waste in that extremely heavy Aussie body but works well in the FD.

We will see more and more of these conversions becuase the cost of the engines has doubled but the value of the car has decreased in half. Moreover, the conversion cost is about the same as I hate to use the stupid term of "fully built" (as opposed to a partially built engine?) so lets just say "fully modifed" single turbo.

Toyota makes great engines & Nissan has a few winners.

To say they are no more reliable than a rotary, but add a turbo to the rotary and it's a whole different ball game (I don't like to admit it)

but everyone is entitled to their opnion.

KKMpunkrock2011 05-29-10 05:10 PM

I've got rotors, my first one had rotors, but I'm not opposed to pistons.

t-von 05-29-10 08:56 PM


Originally Posted by no_more_rice (Post 10026060)
You have to be sure the motor itself and all the supporting components are 100%, you cannot skimp or cut corners anywhere with a turbocharged rotary. Once set up properly (with reasonable boost) they can take a beating.


Yep there are those that keep rebuilding rotarys or keep installing used engines and yet never pin point what made them blow in the 1st place. The supporting commonents 99% of the time are the cause. I know of an sequential turbo 330+rwhp Fd that got rebuilt at 90k. This same engine is still running perfectly and chassis now has 180k on it. The car was built and maintained by Rotary Performance in Garland Tx. As you said "Once set up properly (with reasonable boost) they can take a beating" ;)



A V8 tune coming out of the single tailpipe of an FD is just wrong.
I agree 100% It just doesn't sound right comming from the Fd.


All times are GMT -5. The time now is 02:35 AM.


© 2024 MH Sub I, LLC dba Internet Brands