Other Engine Conversions - non V-8 Discussion of non-rotary engines, exc V-8's, in a car originally powered by a Rotary Engine.

1999 Miata Engine For An RX-7

Thread Tools
 
Search this Thread
 
Old Apr 2, 2008 | 08:04 PM
  #51  
MX3's Avatar
MX3
Thread Starter
Senior Member
Tenured Member: 15 Years
iTrader: (4)
 
Joined: Feb 2006
Posts: 748
Likes: 2
From: Virginia
Originally Posted by El Nene 7
i will trade you a roller fc for the fd plus cash
Sorry, no can do.
Reply
Old Apr 2, 2008 | 08:05 PM
  #52  
MX3's Avatar
MX3
Thread Starter
Senior Member
Tenured Member: 15 Years
iTrader: (4)
 
Joined: Feb 2006
Posts: 748
Likes: 2
From: Virginia
http://www.jdmenginedepot.com

Do any of you have any experience or anything to say about the following online store:

The are called JDM Engine Depot and their website is called:

http://www.jdmenginedepot.com

Thanks You all Your Educated Answers Thus Far. You're all Great. I mean that. I sincerely do.
Reply
Old Apr 2, 2008 | 10:18 PM
  #53  
tecknix's Avatar
If it spins, keep blowing
Tenured Member 05 Years
 
Joined: Sep 2003
Posts: 153
Likes: 0
From: Cincy, OH
so you've given up on making the fd a 4 banger?
Reply
Old Apr 2, 2008 | 11:20 PM
  #54  
MX3's Avatar
MX3
Thread Starter
Senior Member
Tenured Member: 15 Years
iTrader: (4)
 
Joined: Feb 2006
Posts: 748
Likes: 2
From: Virginia
Originally Posted by tecknix
so you've given up on making the fd a 4 banger?
I test drove a 2002 Miata today. Was'nt too impressed.
Reply
Old Apr 3, 2008 | 06:16 AM
  #55  
F1blueRx7's Avatar
Couldn't stay away
Tenured Member: 20 Years
Liked
Loved
Community Favorite
iTrader: (5)
 
Joined: Jul 2002
Posts: 5,093
Likes: 160
From: Defuniak Springs, FL
Originally Posted by Brismo7
Do IT!

i think it'll be sweet and it will **** off a lot of rotor boyzzz.

you can always supercharge or turbo it later.

Be different!!
Considering the fact that LSX mounts already exist for the car it would be cheaper to put in a stock LS1 and he'd probably get the same if not better gas mileage.

Actually, the Vq40DE in the 05+ Xterra, Pathfinder and Frontier is a BAD *** ENGINE with gobs of torque. I still think the LS1 is a better choice but a Vq40de would be sweet if it fit.

The money you end up spending in fabrication and mounting would not be made up for in gas savings, so economically the entire idea of swapping just for fuel efficiancy is out the window.

Last edited by F1blueRx7; Apr 3, 2008 at 06:27 AM.
Reply
Old Apr 3, 2008 | 08:21 AM
  #56  
MX3's Avatar
MX3
Thread Starter
Senior Member
Tenured Member: 15 Years
iTrader: (4)
 
Joined: Feb 2006
Posts: 748
Likes: 2
From: Virginia
Originally Posted by f1blueRx7
Considering the fact that LSX mounts already exist for the car it would be cheaper to put in a stock LS1 and he'd probably get the same if not better gas mileage.

Actually, the Vq40DE in the 05+ Xterra, Pathfinder and Frontier is a BAD *** ENGINE with gobs of torque. I still think the LS1 is a better choice but a Vq40de would be sweet if it fit.

The money you end up spending in fabrication and mounting would not be made up for in gas savings, so economically the entire idea of swapping just for fuel efficiancy is out the window.

That's the main thing. The cost of doing the project will exceed the amount spent on gas. You're all correct in saying that.
Reply
Old Apr 3, 2008 | 01:48 PM
  #57  
Hitokiri_Gensai's Avatar
RHD ftw!
Tenured Member 15 Years
iTrader: (2)
 
Joined: May 2007
Posts: 2,342
Likes: 0
From: Bratlleboro, Vermont
i really would suggest an LS1 for an FD, i hate to admit it, but that would have to be my choice for a piston engine in an FD.
Reply
Old Apr 3, 2008 | 02:13 PM
  #58  
slo's Avatar
slo
registered user
Tenured Member 15 Years
iTrader: (1)
 
Joined: Jan 2006
Posts: 2,469
Likes: 0
From: San Diego
you could always buy another car as a daily driver, I just bout a 98 Jetta TDI, for about 5k once the needed maintenance was done, and some mods to roughly add 70% to its stock power level.

Ive been avg 48 MPG in mixed driving which way more than makes up for the current disparity between diesel and gas.

I could turn around and sell the car for more than I have in it easily.
Reply
Old Apr 4, 2008 | 08:46 AM
  #59  
FlyinFINN's Avatar
93' Rx7 Widebody
iTrader: (1)
 
Joined: Mar 2008
Posts: 165
Likes: 0
From: West Palm Beach, FL
Originally Posted by MX3
I test drove a 2002 Miata today. Was'nt too impressed.
I thought it was for fuel economy? You should have been impressed by that. Whatd you think? That it was going to be fast?
Reply
Old Apr 4, 2008 | 09:47 PM
  #60  
redrumracer's Avatar
Junior Member
Tenured Member 05 Years
 
Joined: Apr 2007
Posts: 5
Likes: 0
From: Athens, Ga
It's your car do what you want. Personally I drive a 99 miata daily and it doesn't have that much power in a light car much less a heavier one. Also if you are going after mpg then the miata motor is not a good choice. It gets horrible mpg for a 4 cyl, v8's get better mileage and speaking of such why not just put a lsx in the car and call it a day.
Reply
Old Apr 5, 2008 | 01:12 PM
  #61  
darksideperformance's Avatar
Senior Member
Tenured Member 10 Years
iTrader: (1)
 
Joined: Jan 2006
Posts: 452
Likes: 0
From: rocky mount,nc
Seriously, if you are looking to make the FD more reliable & get better fuel mileage, you should go with a newer engine. I had a 99 miata & it didn't get exceptional mileage. GM's new 3800cc v6 would fit nicely, weighs less, more power, can spin to 8 grand, etc. Unless you're on the cheap and you have a 99 miata lying around, it isn't viable.

mike
Reply
Old Apr 18, 2008 | 11:01 AM
  #62  
fi addict's Avatar
Senior Member
Tenured Member: 20 Years
 
Joined: Dec 2003
Posts: 457
Likes: 0
From: NY
You are going to swap for better mileage? I could see if it was more than double the MPG but I do not see the benifit otherwise. Lets say you get 30MPG out of the 1.8liter Miata engine and 12 out of the 1.3liter. You just spent HOW MUCH on the swap costs? Time and effort....? Yes, you can use the same tranny and that IS a plus but not enough since you need an adapter plate.

On second thought... you ARE keeping another "7 " on the road and I am all for that. AND the longer gearing could mean close to 40mpg if your foot is light enough on the pedal. ALSO, yo do leave options open still for a 300+ rwhp car....

X-Kit Specifications -310 RWHP @ 15psi (pump gas)

$3,675.00
T3/TO4E turbocharger
.50 A/R compressor; .63 A/R turbine
TiaL 35mm external wastegate
21" x 12" x 3" Aluminum Intercooler
Mild steel, equal length tubular manifold, .25" thick tubing
3" mild steel downpipe
2.5" intercooler and turbo piping
GReddy Type R blow-off valve
Autometer Ultra-Lite or Phantom series boost gauge.
kit also includes all necessary pipes, oil feed and drain lines, clamps, and fittings

and if you are doing the swap I am sure you can wipe up some piping and such w/o a problem.

Now that I played both sides of the fence...enjoy the choice, It is yours to make.
Reply
Old Apr 18, 2008 | 12:07 PM
  #63  
2Fierce's Avatar
Cautious Angel
iTrader: (7)
 
Joined: Jul 2003
Posts: 1,597
Likes: 2
From: toronto
Guys, he wants a 400hp FD that costs 2000$ to make and gets 100mpg.

He has about 5 braincells and combined this is what they've come up with. If you follow this thread, there isn't an ounce of intellect coming from the OP. He sounds like a 12 year old.

To actually help, an NA mr2 is a good and fun daily driver. Sporty, rare, won't kill your wallet on gas but might kill you if you push it too hard. On the other hand, a new Fit just rapes at the pumps!
Reply
Old Apr 20, 2008 | 11:22 PM
  #64  
Railgun's Avatar
I won't let go
Veteran: Marine Corp
Tenured Member: 20 Years
Liked
Loved
 
Joined: Aug 2002
Posts: 3,871
Likes: 23
From: Chi -> Maidstone
Ok...let me ask something. You're concerned about economy, right? Hence you want to drop a 140HP/120TQ motor into a car that weighs 500 pounds more than what the motor was designed for, right? You're concerned that it's a daily driver, but you don't have a motor in it now?

First, that motor is going to labor...more than you realize. Your mileage isn't going to be as glamourous as you'd like it to be.

Second, as Sean mentioned, the $ that you're going to put into it is going to outweigh the cost you think you'll realize in fuel. You'd be better off getting a stock REW back in there. Much cheaper in the long run.

Third, as many have mentioned, you're killing the value of the car. If you're really concerned about economy, a 7 isn't the car for you. I don't mind swaps (to a point) but this is rediculous.

EDIT: In my defense, I didn't even read A-Spec's entire post before I typed mine. I just saw the point of fab costs. So I guess I can just +1 their post.
Reply
Old Apr 21, 2008 | 07:26 AM
  #65  
FlyinFINN's Avatar
93' Rx7 Widebody
iTrader: (1)
 
Joined: Mar 2008
Posts: 165
Likes: 0
From: West Palm Beach, FL
I say sell the car and buy a miata.
Reply
Old May 6, 2008 | 06:57 PM
  #66  
Rotorsex's Avatar
Junior Member
 
Joined: Apr 2008
Posts: 18
Likes: 0
From: Jacksonville, NC
dude..VICE VERSA...put a 13b in a miata i own a miata and im constantly on miataforum.com and i havent heard anything bad about this swap so far! I like it how some people have all this money to do swaps like these and have difficulty choosing between which MOTOR you want in your FD!! Im still in a dream state on getting an FD alone lol
Reply
Old May 6, 2008 | 11:28 PM
  #67  
dbragg's Avatar
Say hello to Mr.Wankel
Tenured Member 05 Years
iTrader: (7)
 
Joined: Nov 2004
Posts: 5,962
Likes: 1
From: Cartersville, Ga
scooter FTW!!! 70 MPG!!
Reply
Old Jun 8, 2008 | 01:57 PM
  #68  
R-R-Rx7's Avatar
Rotor or no motor
Tenured Member: 15 Years
Liked
Loved
Community Favorite
iTrader: (24)
 
Joined: Oct 2006
Posts: 3,741
Likes: 498
From: Limassol, CYPRUS
Originally Posted by Rotorsex
dude..VICE VERSA...put a 13b in a miata i own a miata and im constantly on miataforum.com and i havent heard anything bad about this swap so far! I like it how some people have all this money to do swaps like these and have difficulty choosing between which MOTOR you want in your FD!! Im still in a dream state on getting an FD alone lol
+1.. seen it happen and kicks ***. A friend bought a 700ps front clip and put it in a miata...its uncontrolable
Reply
Old Jun 18, 2008 | 09:25 PM
  #69  
SouthSideSlider's Avatar
whats a Turbo V?
Tenured Member 05 Years
 
Joined: Nov 2006
Posts: 1,215
Likes: 0
From: Goose Creek, SC
from what he has said he has no REW at the moment now a miata motor no but an F20C maybe. lol of course this coming from the guy wanting a Volvo B5234FT iniline 5 turbo motor in an FC. LOL
Reply
Old Jun 21, 2008 | 08:30 AM
  #70  
BigWillieStyles's Avatar
Rotary Enthusiast
Tenured Member 15 Years
 
Joined: May 2005
Posts: 986
Likes: 0
From: Okayama - Japan
remove the turbos and have a nicely tuned NA rotary. You can still make good power, have better engine life and better fuel economy
Reply
Old Jun 21, 2008 | 11:25 PM
  #71  
koguchi power's Avatar
Full Member
Tenured Member 10 Years
 
Joined: Apr 2007
Posts: 102
Likes: 0
From: Australia
I think you should do the conversion, and then drive the car off a cliff or burn it before someones finds out what you have done....its either going to be you or them LOL

On a serious not, i really how you are not considering this, if you are please sell both cars and buy a bus pass because your not worthy to be behind the wheel of a FD and especially one powered by a Lame no brapping motor

D7
Reply
Old Jun 24, 2008 | 07:35 AM
  #72  
macca_33's Avatar
Junior Member
Tenured Member 05 Years
 
Joined: Sep 2003
Posts: 23
Likes: 0
From: australia
strap yourself to the miata engine and drop it off a bridge. what a lame idea.
Reply
Old Jun 24, 2008 | 03:28 PM
  #73  
lews930's Avatar
Senior Member
Tenured Member 05 Years
 
Joined: Oct 2003
Posts: 261
Likes: 0
From: Tampa, Florida
Guys, I think you're being a little hard on the original poster. He was obviously looking for info on how to get a fuel efficient car while using a motorless FD chassis. I personally dont like the idea and i think the better mileage would be negated by the cost. Also, I think he was trying to stay in the Mazda line with the Miata motor.

That said, try to keep an open mind when things like this come up. you never know who'll have the next great idea. Who would have thunk that people would put sb chevys in rx7's.

as some have posted earlier, buy a turbo motor and use it for fun or just sell it and buy a VW jetta diesel as SLO recommended. 50mpgi s hard to beat!!
Reply
Old Jun 24, 2008 | 03:48 PM
  #74  
Brismo7's Avatar
6 Speed FC
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Aug 2005
Posts: 2,258
Likes: 1
From: Orange, CA
Those who cant afford gas @ current prices, cant afford engine swaps....
Reply
Old Jun 28, 2008 | 05:46 AM
  #75  
88IntegraLS's Avatar
Displacement > Boost
Tenured Member 10 Years
 
Joined: Oct 2002
Posts: 3,503
Likes: 0
From: Mississippi
I'm waiting for gas to get around $8-10. The landscape will surely change. No more ricers?
Reply



All times are GMT -5. The time now is 01:42 PM.