Notices
RX-8 Discussion General discussion about the RX-8 that doesn't fit in one of the specialty forums.
Sponsored by:
Sponsored by: CARiD

Power to weight ratio?

Thread Tools
 
Rate Thread
 
Old Mar 30, 2009 | 04:41 PM
  #1  
renesisgenesis's Avatar
Thread Starter
mod edit
 
Joined: Jan 2009
Posts: 427
Likes: 0
From: Eugene, Oregon
Power to weight ratio?

For a naturally aspirated motor, I think it's quite possible that the actual RX8 motor itself has the best power to weight ratio of any production car...ever. It might not be true, but at least it's gotta be close. I just thought of this and realized how awesome that is.
Reply
Old Mar 30, 2009 | 04:42 PM
  #2  
CyberPitz's Avatar
Huge hole is huge
 
Joined: Feb 2008
Posts: 3,191
Likes: 1
From: Joplin, MO
Originally Posted by renesisgenesis
For a naturally aspirated motor, I think it's quite possible that the actual RX8 motor itself has the best power to weight ratio of any production car...ever. It might not be true, but at least it's gotta be close. I just thought of this and realized how awesome that is.
It definitely puts out a good punch for it's weight, that's for sure!
Reply
Old Mar 30, 2009 | 04:45 PM
  #3  
neXib's Avatar
Registered
 
Joined: May 2008
Posts: 635
Likes: 1
From: Norway
Well the S2000 is probably up there too.
Reply
Old Mar 30, 2009 | 04:56 PM
  #4  
chancejat's Avatar
Drive it like u stole it!
iTrader: (2)
 
Joined: Nov 2007
Posts: 1,050
Likes: 0
From: mobile, al
rx8 232hp at 267 lbs(fully dressed minus airbox)
s2000 240hp 326lbs(not sure if thats dressed or not)

either way rx8 wins...
Reply
Old Mar 30, 2009 | 05:13 PM
  #5  
YaXMaNGTO's Avatar
It's a Cavalier
 
Joined: May 2007
Posts: 1,926
Likes: 5
From: Austin, TX
You have to kidding!!!!!!!!!

It's not even close to best NA power to weight for a production engine.

Just one example... a run-of-the-mill aluminum block Chevy 6.2L LS3 V8 with it's "ancient" ohv technology has 430hp and weighs 415 lbs fully dressed. That's the engine in the base level Corvette, the Pontiac G8 GXP, and the Camaro SS.
Reply
Old Mar 30, 2009 | 05:16 PM
  #6  
renesisgenesis's Avatar
Thread Starter
mod edit
 
Joined: Jan 2009
Posts: 427
Likes: 0
From: Eugene, Oregon
stop trying to ruin my fun. can't you just lie to me and tell me it's gunna be ok
Reply
Old Mar 30, 2009 | 05:19 PM
  #7  
YaXMaNGTO's Avatar
It's a Cavalier
 
Joined: May 2007
Posts: 1,926
Likes: 5
From: Austin, TX
Originally Posted by renesisgenesis
stop trying to ruin my fun. can't you just lie to me and tell me it's gunna be ok
HAHAHAH okay, my bad. Disregard my comment... continue fun.
Reply
Old Mar 30, 2009 | 07:15 PM
  #8  
Roaddemon's Avatar
Registered
 
Joined: Jan 2004
Posts: 997
Likes: 0
From: Milwaukee Wi.
Originally Posted by renesisgenesis
stop trying to ruin my fun. can't you just lie to me and tell me it's gunna be ok
Put a turbo on the renesis and you'll have the 6.2 LS3 well beat in power to weight ratio. The fun is back.
Reply
Old Mar 30, 2009 | 07:40 PM
  #9  
Brettus's Avatar
Boosted Kiwi
iTrader: (2)
 
Joined: Apr 2006
Posts: 20,856
Likes: 1,806
From: Y-cat-o NZ
/\ heh - good thinking . Although evos can put out 700 hp with major mods - end party ...
Reply
Old Mar 30, 2009 | 07:41 PM
  #10  
PhillipM's Avatar
Registered
 
Joined: Dec 2007
Posts: 863
Likes: 0
From: UK
It's not even the best power to weight N/A rotary engine in a road going vehicle - Norton takes that one!

And OS makes a 1.27hp version that weighs under 12oz dressed, so I'd imagine that takes the overall power/weight ratio for an N/A rotary to boot, given it can run on nitro from the outset and make 2.2bhp.

Last edited by PhillipM; Mar 30, 2009 at 07:58 PM.
Reply
Old Mar 30, 2009 | 07:45 PM
  #11  
warren(silver-roxy-8)'s Avatar
no sleep til it spools
 
Joined: Jan 2009
Posts: 502
Likes: 1
From: Austin, Texas
i like cake
Reply
Old Mar 30, 2009 | 07:49 PM
  #12  
warren(silver-roxy-8)'s Avatar
no sleep til it spools
 
Joined: Jan 2009
Posts: 502
Likes: 1
From: Austin, Texas
and pie
Reply
Old Mar 30, 2009 | 07:51 PM
  #13  
636's Avatar
636
Rice Police
 
Joined: Nov 2006
Posts: 654
Likes: 0
From: California
V8 ftmfw , *gets shot*
Reply
Old Mar 30, 2009 | 08:01 PM
  #14  
hyperlitenerd's Avatar
captin safety
 
Joined: Oct 2006
Posts: 143
Likes: 0
From: Santa Clara
What are the specs for the 20b? I seem to recall one a N/A rx7 racing car (best motoring) with 450hp. Another point for rotaries?
Reply
Old Mar 30, 2009 | 09:47 PM
  #15  
YaXMaNGTO's Avatar
It's a Cavalier
 
Joined: May 2007
Posts: 1,926
Likes: 5
From: Austin, TX
Originally Posted by Roaddemon
Put a turbo on the renesis and you'll have the 6.2 LS3 well beat in power to weight ratio. The fun is back.
Originally Posted by Brettus
/\ heh - good thinking . Although evos can put out 700 hp with major mods - end party ...
Originally Posted by hyperlitenerd
What are the specs for the 20b? I seem to recall one a N/A rx7 racing car (best motoring) with 450hp. Another point for rotaries?
Focus.

To have a meaningful discussion here, the engine must be

A) Production (completely stock, no mods, and produced in mass quantities)

B) Normally aspirated (no turbo. no nitrous. no supercharger, no turbonator, no hair dryers)

Not sure where a turbo renesis, or a turbo modded evo, or even a 20b racing engine has anything to do with comparing other STOCK PRODUCTION NA engines.

Simple answer? Renesis is not the best hp/weight production engine. Not saying it sucks, because I love the Renny... it's just it's not that great if you measure it ONLY by that standard.
Reply
Old Mar 30, 2009 | 10:08 PM
  #16  
Brettus's Avatar
Boosted Kiwi
iTrader: (2)
 
Joined: Apr 2006
Posts: 20,856
Likes: 1,806
From: Y-cat-o NZ
/\ how about if you said highest hp for the "size" of the engine . After all the real advantage of the rotary is being able to shoehorn it in where no other engine could go ....
Reply
Old Mar 30, 2009 | 10:13 PM
  #17  
shazy's Avatar
Registered
 
Joined: Oct 2008
Posts: 2,256
Likes: 0
From: Montreal,QC
I thought you guys meant Power to weight ratio of cars, if it is, for the rx-8 I think it's 13lbs per HP.
S2000 is somewhere in the 12's IIRC
Reply
Old Mar 30, 2009 | 10:13 PM
  #18  
carbonRX8's Avatar
U-Stink-But-I-♥-U
iTrader: (1)
 
Joined: Mar 2005
Posts: 2,004
Likes: 2
From: 12 o'clock on the Beltway.
The LS series will (mostly) fit in a RX7 and RX8 with minimal weight gain (in some cases loss)

The Z06 has a power:weight of just over 6. the stock RX8 is nowhere close. Nowhere.
Reply
Old Mar 30, 2009 | 10:35 PM
  #19  
shazy's Avatar
Registered
 
Joined: Oct 2008
Posts: 2,256
Likes: 0
From: Montreal,QC
Originally Posted by carbonRX8
The LS series will (mostly) fit in a RX7 and RX8 with minimal weight gain (in some cases loss)

The Z06 has a power:weight of just over 6. the stock RX8 is nowhere close. Nowhere.

Read my comment
Reply
Old Mar 30, 2009 | 10:37 PM
  #20  
exsequor's Avatar
wipe me down
iTrader: (1)
 
Joined: Apr 2008
Posts: 825
Likes: 1
From: Colorado Springs, CO
I'd say for the amount of horsepower our cars actually deliver to the wheels we move pretty good. But that's all. lol
Reply
Old Mar 30, 2009 | 10:40 PM
  #21  
carbonRX8's Avatar
U-Stink-But-I-♥-U
iTrader: (1)
 
Joined: Mar 2005
Posts: 2,004
Likes: 2
From: 12 o'clock on the Beltway.
Originally Posted by shazy
Read my comment
You posted while I was writing.

What. Do you want an award?


Reply
Old Mar 30, 2009 | 11:32 PM
  #22  
YaXMaNGTO's Avatar
It's a Cavalier
 
Joined: May 2007
Posts: 1,926
Likes: 5
From: Austin, TX
Originally Posted by Brettus
/\ how about if you said highest hp for the "size" of the engine . After all the real advantage of the rotary is being able to shoehorn it in where no other engine could go ....
Aw come on man! You're not gonna let me "WIN" just one thread on this whole damn forum?!?! Just one! All I ask!
Reply
Old Mar 30, 2009 | 11:44 PM
  #23  
hyperlitenerd's Avatar
captin safety
 
Joined: Oct 2006
Posts: 143
Likes: 0
From: Santa Clara
I was really curious on what the stock 20b put out?
Reply
Old Mar 31, 2009 | 12:18 AM
  #24  
carbonRX8's Avatar
U-Stink-But-I-♥-U
iTrader: (1)
 
Joined: Mar 2005
Posts: 2,004
Likes: 2
From: 12 o'clock on the Beltway.
Originally Posted by hyperlitenerd
I was really curious on what the stock 20b put out?
exhaust.



Search.




Read.
Reply
Old Mar 31, 2009 | 01:40 AM
  #25  
neXib's Avatar
Registered
 
Joined: May 2008
Posts: 635
Likes: 1
From: Norway
Well the 20B has got twin sequential turbos.

Would be nice if they came up with the 16X and said, hey, we also made this 24X :P
Reply


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -5. The time now is 11:24 AM.