The MX-8 - Page 4 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


General Miata Chat A place to talk about anything Miata

Reply
 
 
 
LinkBack Thread Tools
Old 03-07-2008, 08:44 PM   #61
Elite Member
iTrader: (3)
 
AbeFM's Avatar
 
Join Date: Aug 2006
Location: San Diego, CA
Posts: 3,048
Total Cats: 8
Default

More pics more pics!!

Awesome swap. Even if you can't get the *best* power to weight ratio out of it, it should be a fun car to drive. I liked how the RX-8 I drove felt, pulled nice and smooth everywhere.
AbeFM is offline   Reply With Quote
Old 03-07-2008, 08:50 PM   #62
Senior Member
 
Join Date: Jan 2007
Location: Maryland
Posts: 701
Total Cats: 0
Default

"support america" this is why I really dislike people trying to bash Rotary's. They often make it a "well american muscle cars are made like this, and we are american's dammit!" What bull. Some how a type of internal combustion engine is more american than another??
This idea and thinking clearly leads to new developments and better technology right? I mean, as long as we keep improving the pushrod v8?? is that how it works??

Far as I'm concerned I'd really like to see the Rotary come through as a good engine, I think it has plenty of capacity for it. Just need to improve the cooling. On the Renesis the third "shared" exhaust port gets all sorts of rediculous hot, the other two exhaust pipes can be peachy and the third will be red hot.

As for development, I'd also like to see a quasiturbine engine to pull through and make it into cars or buses...whatever the application it'd be pretty cool.
MX_Eva is offline   Reply With Quote
Old 03-07-2008, 09:15 PM   #63
Junior Member
iTrader: (1)
 
Join Date: Mar 2007
Location: South Florida
Posts: 491
Total Cats: -1
Default Daytona Rolex 24hr: SpeedSource RX8 wins GT class

Read below enough said:

SPEEDSOURCE CASTROL SYNTEC MAZDA RX-8 WINS GT
CLASS AT 2008 ROLEX 24 AT DAYTONA

- 22nd Win in Endurance Classic for Mazda since 1975

January 27, 2008 (Daytona Beach, Fla). After 24 hours of close competition among 41 cars, the SpeedSource Castrol Syntec Mazda RX-8 team won the GT class at the Rolex 24 at Daytona to kick off the 2008 GrandAm season. The SpeedSource driving team of Sylvain Tremblay, David Haskell, Nick Ham, and Raphael Matos started from the pole, and led 323 of 664 laps, on their way to ninth overall and the class win.
The SpeedSource Mazda team beat the runner-up Porsche by over five laps. The win was the 22nd class win at the race for Mazda and a ended a lengthy winning streak by Porsche at the biggest 24 hour race in America. Along the way, the SpeedSource number 70 car beat over two dozen Porsche 911 GT-3s, a handful of Pontiacs, a pair of Ferrari 430 Challenges, a Corvette, and a BMW M6. There were a total of 55 lead changes among 10 cars in the class, but no onecould pass the RX-8 for the final 185 laps.
mrtonyg is offline   Reply With Quote
Old 03-07-2008, 09:41 PM   #64
Elite Member
iTrader: (24)
 
kotomile's Avatar
 
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,578
Total Cats: 40
Default

Quote:
Originally Posted by wildfire0310 View Post
How many motors do you know that have a 1.3L displacement and can make up 400+ whp.
I disagree with the myth that a 13B is a "1.3L".

Not a rotary hater, but it grinds my gears when people claim that rotaries make "all that horsepower out of 1.3 literzzz!!!"

Read and know:

"While a four-stroke piston engine makes one combustion stroke per cylinder for every two rotations of the crankshaft (that is, one half power stroke per crankshaft rotation per cylinder), each combustion chamber in the Wankel generates one combustion stroke per each driveshaft rotation, i.e. one power stroke per rotor orbital revolution and three power strokes per rotor rotation. Thus, power output of a Wankel engine is generally higher than that of a four-stroke piston engine of similar engine displacement in a similar state of tune and higher than that of a four-stroke piston engine of similar physical dimensions and weight. Wankel engines also generally have a much higher redline than a reciprocating engine of similar size since the strokes are completed with a rotary motion as opposed to a reciprocating engine which must use connecting rods and a crankshaft to convert reciprocating motion into rotary motion.

National agencies that tax automobiles according to displacement and regulatory bodies in automobile racing variously consider the Wankel engine to be equivalent to a four-stroke engine of 1.5 to 2 times the displacement; some racing regulatory agencies ban it altogether."
kotomile is offline   Reply With Quote
Old 03-07-2008, 09:50 PM   #65
Elite Member
iTrader: (24)
 
kotomile's Avatar
 
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,578
Total Cats: 40
Default

BTW, I'm loving the reliability comparisons between modded rotaries and stock truck engines... lol. What's that? A V8 that's never been revved past 5.5k RPM or been truly driven hard is still going? Do tell!
kotomile is offline   Reply With Quote
Old 03-07-2008, 10:00 PM   #66
Senior Member
 
Join Date: Jan 2007
Location: Maryland
Posts: 701
Total Cats: 0
Default

I both agree and disagree with the displacement nomer on the 1.3 liters. It does create significantly more power for it's size. However, it's hard to compare. Much like the Quasiturbine which can have like 32 strokes per cycle, all dependent on how many ports and carriers you put on it.
MX_Eva is offline   Reply With Quote
Old 03-07-2008, 10:21 PM   #67
Guest
 
Join Date: Mar 2006
Location: So Cal
Posts: 407
Total Cats: 0
Default

from my understanding its considered a 2.6 liter since its two rotors. Also I love how they get full boost by like 3800 with a big as T78 turbo...always loved em
krayzrac3r is offline   Reply With Quote
Old 03-07-2008, 10:28 PM   #68
Junior Member
 
Join Date: Nov 2007
Posts: 98
Total Cats: 0
Default

i just hope those who hate rotaries keep it that way... its getting hard to find a nice condition FC now adays cuz ppl keep crashing or blowing them up..

i have a DD FC btw, bought it in 04 w/ 50k miles... its at 141k now with normal routine maintenance and the only thing that has gone wrong is... well my u-joints failed on me... but thats not engine related.... i think its great for what i do with it (freeway 60+ mile commute) because at that speed *3k* the motor is only spinning at a third that... so its almost idling comparing to a car

the RX8's motor is loads better than the 13bs because its almost to the power levels of the 13bREW but also classfied as a ULEV... and that was the main point of the rx8 was to prove to everyone that it can be emissions friendly too... i'd get one.

and where are the pix??? i wanna see more of the rotary nc not to see a big debate
emmi is offline   Reply With Quote
Old 03-07-2008, 10:54 PM   #69
Senior Member
iTrader: (3)
 
Join Date: Apr 2006
Location: Northern Michigan
Posts: 898
Total Cats: 0
Default

I think I have owned eight rx7s and never had an engine fail. But they can be a pain, especially compared to the miata. And when I had the choice between my 91 turbo miata and my black 94 FD touring with 47k, I drove the miata. Selling the FD for $7k more than I paid was handy for the family stuff. I am getting some funny feelings about getting another one though. I loved my black 89 turbo, bought as a shell, new most everything, added a back seat and took a vacation with the family. Good times. Only made a little money on that car, though, I through in the labor for free.
rotaryjunky is offline   Reply With Quote
Old 03-07-2008, 11:21 PM   #70
Senior Member
iTrader: (3)
 
Join Date: Apr 2006
Location: Northern Michigan
Posts: 898
Total Cats: 0
Default

I have also driven an 87 turbo that had 199K on the original engine. But one day, my 84 gsl-se just started smoking, still ran great for some time but annoying. Rotaries are very reliable when driven but don't sit well. Then you have to either put atf down the carb, pull it with a truck and pop the clutch in second, or arc the distributor (rubber gloves are good) for some starting power. All fun.
rotaryjunky is offline   Reply With Quote
Old 03-07-2008, 11:41 PM   #71
Elite Member
iTrader: (6)
 
Loki047's Avatar
 
Join Date: Sep 2005
Location: Chicago
Posts: 4,145
Total Cats: 0
Default

Ben nice swap keep us informed.

And for everyone arguing about engines; do some research and come back with data. This is probably the most m.net argument i have ever seen.
Loki047 is offline   Reply With Quote
Old 03-08-2008, 10:38 AM   #72
I haz no trubo
iTrader: (2)
 
Oscar's Avatar
 
Join Date: Jan 2007
Location: Bolton, UK
Posts: 3,021
Total Cats: 114
Default

nice, keep us updated.

I can probably source a renesis hp block for a decent price so I'm certainly interested
Oscar is offline   Reply With Quote
Old 03-08-2008, 12:41 PM   #73
Senior Member
iTrader: (3)
 
Join Date: Dec 2007
Location: Seven Valleys, PA
Posts: 639
Total Cats: 11
Default

looks like a cool project.

good luck finishing it all.

reminds me of this one i saw two years ago even though this one is a NA
Attached Thumbnails
The MX-8-rotary-mx5.jpg   The MX-8-rotary-mx5-2.jpg  
swimming108 is offline   Reply With Quote
Old 03-08-2008, 02:01 PM   #74
Elite Member
iTrader: (2)
 
Join Date: Jan 2007
Location: Los Angeles, CA
Posts: 8,782
Total Cats: 119
Default

Quote:
Originally Posted by m2cupcar View Post
looky all the room for another rotary
one engine for each wheel please
Faeflora is offline   Reply With Quote
Old 03-08-2008, 03:24 PM   #75
Elite Member
iTrader: (24)
 
kotomile's Avatar
 
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,578
Total Cats: 40
Default

Quote:
Originally Posted by krayzrac3r View Post
from my understanding its considered a 2.6 liter since its two rotors. Also I love how they get full boost by like 3800 with a big as T78 turbo...always loved em
It's considered a 2.6 liter by many, but because it has more firing cycles per crankshaft revolution than a 4-cycle piston engine, not because there are two rotors. Loki - instead of saying to do more research, why not do your own and then prove me wrong?

Not meaning to crap on your thread, Ben. That's a kickass project you have there and I wish you much luck with it, that's got to be a helluva lot of work and dedication.
kotomile is offline   Reply With Quote
Old 03-08-2008, 04:04 PM   #76
Elite Member
iTrader: (6)
 
Loki047's Avatar
 
Join Date: Sep 2005
Location: Chicago
Posts: 4,145
Total Cats: 0
Default

Quote:
Originally Posted by kotomile View Post
Loki - instead of saying to do more research, why not do your own and then prove me wrong?
Cause theres no point. I already know which engine is better for my needs.

It comes down to the theories of the engines and execution. I don't have to prove you wrong, you don't know what you're talking about.
Loki047 is offline   Reply With Quote
Old 03-08-2008, 04:10 PM   #77
Elite Member
iTrader: (11)
 
Join Date: Jun 2007
Location: Overland Park, Kansas
Posts: 5,382
Total Cats: 43
Default

ugh.. Why??
elesjuan is offline   Reply With Quote
Old 03-08-2008, 04:34 PM   #78
Elite Member
iTrader: (24)
 
kotomile's Avatar
 
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,578
Total Cats: 40
Default

Quote:
Originally Posted by Loki047 View Post
I don't have to prove you wrong, you don't know what you're talking about.
Whatever you say.
kotomile is offline   Reply With Quote
Old 03-09-2008, 12:53 AM   #79
Elite Member
iTrader: (6)
 
Loki047's Avatar
 
Join Date: Sep 2005
Location: Chicago
Posts: 4,145
Total Cats: 0
Default

Quote:
Originally Posted by kotomile View Post
Whatever you say.
It always is
Loki047 is offline   Reply With Quote
Old 03-09-2008, 11:07 AM   #80
Elite Member
iTrader: (5)
 
m2cupcar's Avatar
 
Join Date: Jan 2005
Location: Atlanta
Posts: 7,236
Total Cats: 288
Default

damn- check out the suspension in that last photo.
m2cupcar is offline   Reply With Quote
 
 
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 03:10 PM.