Insert BS here A place to discuss anything you want!

Much Torque+much Hp = No Traction?!

Old Oct 1, 2003 | 09:22 PM
  #41  
Jims5543's Avatar
Senior Member
 
Joined: Dec 2001
Posts: 2,934
From: Jensen Beach, FL / Sylva, NC
Default

Mazdadrifter is right I think all you want to do is argue to virtues of a v-8 in a RX-7.



rfreeman27 is right 350tq as soon as you hit the gas = tire smoke



My mustang with 300tq would smoke the life out of my 225/24/17 hoosier slicks. My steet tires 275/35/18 Kumho Ecsta's would not stand up to the job either.



You asked about torque. I gave you a real world experiance not only from my driving experiance but also in competition against more powerful lighter cars. My Rotary wins.
Old Oct 1, 2003 | 09:44 PM
  #42  
mazdadrifter's Avatar
Senior Member
 
Joined: Mar 2003
Posts: 1,963
From: Sunny South Florida :)
Default

Originally Posted by Jims5543' date='Oct 1 2003, 04:54 PM
Looks like an LT-1 is the engine to use. Sell me your shitty rotary engines!!!
sell me your fd block first!!! jims already has one!!! Seriously they suck anyways, they obviously can't make any power, I'm living a pipe dream, but I think they're prettier than a 13bt so I'll pay every penny of 500 dollars for your low milage fd block.



I can't afford tires so I have to stick with the rotary.
Old Oct 1, 2003 | 09:52 PM
  #43  
Jims5543's Avatar
Senior Member
 
Joined: Dec 2001
Posts: 2,934
From: Jensen Beach, FL / Sylva, NC
Default

O.K here are 2 REAL dyno sheets one is a 2004 Z-06 the other is my FD powered FC.



Got the Z-06 one from here.



http://forums.corvetteforum.com/zerothread?id=663241





My dyno run:

Attached Thumbnails Much Torque+much Hp = No Traction?!-andi_z06_dyno_stock.jpg  
Old Oct 1, 2003 | 09:57 PM
  #44  
mazdadrifter's Avatar
Senior Member
 
Joined: Mar 2003
Posts: 1,963
From: Sunny South Florida :)
Default

jim's motor is a freak of nature tho, all other fd blocks suck, 500 dollars in your pocket



seriously the excel graph is way more accurate, v8 is the way to go
Old Oct 1, 2003 | 10:02 PM
  #45  
Jims5543's Avatar
Senior Member
 
Joined: Dec 2001
Posts: 2,934
From: Jensen Beach, FL / Sylva, NC
Default

FYI - My car is run with a Motec M-4. It has 2 hours of dyno tuning on it. Obviuosly it needs more tuning. Right now I am content because it is real rich and strong and will last until I have time to tune it correctly.



Anyone who knows anything about 13B-rew can tell you I should be seeing close to 375RWHP.
Old Oct 1, 2003 | 10:04 PM
  #46  
94touring's Avatar
Senior Member
 
Joined: Jul 2001
Posts: 3,346
From: Tulsa, OK
Default

Torque = low end power

Horsepower = top end power



The torque curve and horsepower curve will cross over each other at a certain rpm (5500 on a rotary I believe). Torque is what makes the wheels spin as a result of the thrust/force which the combustion of fuel/air in the engine produces. Stock V8's typically make more torque than most stock to mildly modified 2 rotors. Why is this? I'm guessing its the way they deliver the energy to the crankshaft.
Old Oct 1, 2003 | 10:09 PM
  #47  
mazdadrifter's Avatar
Senior Member
 
Joined: Mar 2003
Posts: 1,963
From: Sunny South Florida :)
Default

probably has somethign to do with haveing 4 times the displacement too, and about 3 times as much moving mass



a more accurate comparison would be a 4 rotor (technically a 5.2 liter) vs a v8 5.7 liter
Old Oct 1, 2003 | 10:20 PM
  #48  
94touring's Avatar
Senior Member
 
Joined: Jul 2001
Posts: 3,346
From: Tulsa, OK
Default

Well I guess if you go by a 4rotor to v8 comparison using displacement, the rotary is much more effiecient and will dominate a piston engine of the same size or larger.....wether you consider it 5.2 litre or 2.6.



Edit: NA engines of course.
Old Oct 1, 2003 | 11:04 PM
  #49  
Srce's Avatar
Senior Member
 
Joined: Oct 2002
Posts: 5,547
Default

My opinion is a bit swayed I admit. I love the rotary, but sometimes I hesitate to accept its disadvantages. I love the low end kick of a Cobra, and the 8K shifting point of a modded FD, but I'd chose a rotary of a comparable V8 any day. It depends on your driving and driving preferance like Jim said. He can probably offer you a less biast opinion, sorry I couldn't be of more help.
Old Oct 1, 2003 | 11:11 PM
  #50  
rfreeman27's Avatar
Senior Member
 
Joined: Dec 2002
Posts: 4,107
From: fredneck MD
Default

One good thing about the rotary i (in a mild form) is you can point and plant. This is similar with cars with high amounts of lag. You might not start blazingly fast, but you will not have to worry about spinning.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
93redfd
Suspension, Wheels, Brakes, Tires
4
Oct 23, 2003 09:56 PM
LIZZY
Suspension, Wheels, Brakes, Tires
14
Oct 12, 2003 09:41 PM
1Revvin7
Suspension, Wheels, Brakes, Tires
18
Feb 14, 2003 03:10 PM
xSleeperx
Suspension, Wheels, Brakes, Tires
25
Jan 24, 2003 12:59 PM
0piston
ECU Discussions
1
Nov 1, 2002 09:12 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread

All times are GMT -5. The time now is 01:35 PM.