RX8Club.com
Register Photo Gallery FAQ Members List Calendar Search Today's Posts Mark Forums Read RX8 Live!Used CarsVendor Directory

Go Back   RX8Club.com > Series I Tech & Performance > Series I Aftermarket Performance Modifications
Sign in using an external account
Register Forgot Password?

Welcome to RX8Club.com!
Welcome to RX8Club.com,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to start new topics, reply to conversations, privately message other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join RX8Club.com today!


Reply
 
 
 
 
LinkBack Thread Tools Search this Thread Rate Thread Display Modes
Old 04-08-2004, 09:25 AM   #1
Registered User
 
darkducati's Avatar
 
Trader Score: (0)
Join Date: Jan 2004
Posts: 182
Send a message via AIM to darkducati
New ACT flywheels.

Anyone try these yet? They are incredibly cheap! Chromoly steel with the couter weight included, street light-$349.95 and pro light-$399.95! That's a steal. And such a better design than the new UR flywheel. Any information?
This ad is not displayed to registered and logged-in members.
Register your free account today and become a member on RX8Club.com!
__________________
all your piston are belong to us

04' SE3P Titanium Sport package
darkducati is offline   Reply With Quote
Old 04-08-2004, 11:02 AM   #2
Registered User
 
mazdaexe's Avatar
 
Trader Score: (0)
Join Date: Jan 2003
Location: CA
Posts: 439
any links?
mazdaexe is offline   Reply With Quote
Old 04-08-2004, 11:10 AM   #3
Not so Super right now
 
Genom's Avatar
 
Trader Score: (0)
Join Date: May 2003
Location: Beyond that there swamp.
Posts: 1,495
rotaryperformance.com has them listed.
__________________
Howdy
Genom is offline   Reply With Quote
Old 04-08-2004, 11:11 AM   #4
Registered User
 
darkducati's Avatar
 
Trader Score: (0)
Join Date: Jan 2004
Posts: 182
Send a message via AIM to darkducati
http://www.rx7.com/store/rx8/rx8driv..._flywheel.html
__________________
all your piston are belong to us

04' SE3P Titanium Sport package
darkducati is offline   Reply With Quote
Old 04-08-2004, 12:31 PM   #5
Registered User
 
sto16's Avatar
 
Trader Score: (0)
Join Date: Oct 2003
Location: Ile Perrot (Canada) QC.
Posts: 95
Question

Can someone explain me what is a flywheels and what does it do?

Please, Im not technical when it comes to mechanical.

Thanks!!!!

Simon.
__________________

Simon from Montreal, Canada
Silver Bullitt GT MT6
In LOVE with my 8.
sto16 is offline   Reply With Quote
Old 04-08-2004, 12:32 PM   #6
Registered User
 
davefzr's Avatar
 
Trader Score: (0)
Join Date: Sep 2003
Location: Diamond Bar, Ca
Posts: 1,474
Send a message via Yahoo to davefzr
How would this compare to the Mazdaspeed flywheel that I have heard good things about.
davefzr is offline   Reply With Quote
Old 04-08-2004, 12:42 PM   #7
Registered User
 
darkducati's Avatar
 
Trader Score: (0)
Join Date: Jan 2004
Posts: 182
Send a message via AIM to darkducati
It is a bit lighter and cost nearly less than half the price of the Mazdaspeed unit.
__________________
all your piston are belong to us

04' SE3P Titanium Sport package
darkducati is offline   Reply With Quote
Old 04-08-2004, 12:50 PM   #8
Registered User
 
mazdaexe's Avatar
 
Trader Score: (0)
Join Date: Jan 2003
Location: CA
Posts: 439
I believe Chromoly is better than aluminum? stronger than aluminum?
mazdaexe is offline   Reply With Quote
Old 04-08-2004, 12:50 PM   #9
Registered User
 
Trader Score: (0)
Join Date: Apr 2004
Posts: 9
Quote:
Originally posted by sto16
Can someone explain me what is a flywheels and what does it do?

Please, Im not technical when it comes to mechanical.

Thanks!!!!

Simon.
Simon,

I'm not sure this includes info on flywheels, but it's a start: http://auto.howstuffworks.com/transmission.htm
__________________
Beep.
irq9 is offline   Reply With Quote
Old 04-08-2004, 12:58 PM   #10
Registered User
 
davefzr's Avatar
 
Trader Score: (0)
Join Date: Sep 2003
Location: Diamond Bar, Ca
Posts: 1,474
Send a message via Yahoo to davefzr
The phrase "slight compromise in drivability" kind of worries me since people who have the MS version have said that the drivability was compromised "somewhat". Meaning that they have to pay closer attention to starting in first gear than before. The non pro version seems like the way to go.

All except for someone to install it costing you 6 to 8 hours labor
davefzr is offline   Reply With Quote
Old 04-08-2004, 05:15 PM   #11
Registered User
 
darkducati's Avatar
 
Trader Score: (0)
Join Date: Jan 2004
Posts: 182
Send a message via AIM to darkducati
That's what the lift at work is for! :D
__________________
all your piston are belong to us

04' SE3P Titanium Sport package
darkducati is offline   Reply With Quote
Old 04-08-2004, 05:16 PM   #12
Banned
 
Broke_Apex_Seal's Avatar
 
Trader Score: (0)
Join Date: Jan 2004
Location: VA
Posts: 512
Doing a flywheel is a must on our cars. Dont listen to anyone unless you have driven an 8 with it. I did it and wish I did it sooner.
Broke_Apex_Seal is offline   Reply With Quote
Old 04-08-2004, 05:37 PM   #13
Registered User
 
darkducati's Avatar
 
Trader Score: (0)
Join Date: Jan 2004
Posts: 182
Send a message via AIM to darkducati
Quote:
Originally posted by bong
I believe Chromoly is better than aluminum? stronger than aluminum?
It is absolutely stronger. The problem I have with the UR flywheel however, is not that's it's alluminum, but the design. Where do you want the weight on a flywheel? As close to the inside as possible(in a perfect world of race tracks anyway). The UR flywheel does have the integrated counter balance, and that is really cool. The problem is that it's all the way out on the perimeter of the flywheel. The prolite flywheel however doesn't seem to have much of any metal on the outer edge, aside from that which is needed for the starter ring gear. I could be wrong, but I think the prolite flywheel will rev far quicker than the UR, even if the UR is lighter. This is why I will go with the ACT.
__________________
all your piston are belong to us

04' SE3P Titanium Sport package
darkducati is offline   Reply With Quote
Old 04-08-2004, 09:59 PM   #14
2-rotor slave
 
Trader Score: (0)
Join Date: Apr 2004
Location: Cincy, OH
Posts: 47
Send a message via AIM to weepul
Quote:
Originally posted by davefzr
The phrase "slight compromise in drivability" kind of worries me since people who have the MS version have said that the drivability was compromised "somewhat". Meaning that they have to pay closer attention to starting in first gear than before. The non pro version seems like the way to go.

All except for someone to install it costing you 6 to 8 hours labor
Yeah I'm curious as to what that means as well. I had a Fidanza for my '96 Talon and removed the balance shafts. I noticed if I rev'd it and drove it past 3k rpm and slipped it into neutral real quick, the flywheel couldn't catch the revs and the engine would stall out. Maybe it's something like that?
weepul is offline   Reply With Quote
Old 04-08-2004, 10:04 PM   #15
Senor Carnegrande
 
BaronVonBigmeat's Avatar
 
Trader Score: (0)
Join Date: Jul 2003
Posts: 873
Does anyone have any dyno or track numbers that show the before/after difference of an aftermarket flywheel on an 8?
BaronVonBigmeat is offline   Reply With Quote
Old 04-08-2004, 10:22 PM   #16
Registered User
 
Trader Score: (0)
Join Date: Feb 2004
Location: Ft. Lauderdale, FL
Posts: 97
Send a message via AIM to mdawgx24
Quote:
The phrase "slight compromise in drivability" kind of worries me since people who have the MS version have said that the drivability was compromised "somewhat". Meaning that they have to pay closer attention to starting in first gear than before. The non pro version seems like the way to go.
I have the MS Flywheel. It takes a little getting used to -- I stalled a couple of times on the first ride out. But since then, no problems.


Quote:
It is a bit lighter and cost nearly less than half the price of the Mazdaspeed unit.
Actually, you can get the MS Flywheel from Rosenthal Mazda for $522 shipped. Of course, getting it installed is another matter.

Jeff
__________________
Black '04 RX-8 GT 6MT
My Ride
mdawgx24 is offline   Reply With Quote
Old 04-08-2004, 10:23 PM   #17
RX7store.net
 
Trader Score: (0)
Join Date: Dec 2001
Location: Columbus Ohio
Posts: 678
Send a message via AIM to Jason
The ACT is a populoar upgrade on the RX-7. I have plenty of them in stock for $250 if anyone wants one. All you need it the counterweight.

Jason
www.rx8store.com
__________________
RX-8 and RX-7 Performance Parts, Dyno Tuning, Rotary Engines.
Enter Shop Here
Jason is offline   Reply With Quote
Old 04-08-2004, 10:40 PM   #18
Registered
 
Trader Score: (2)
Join Date: Oct 2003
Location: Portland OR
Posts: 1,663
Quote:
Originally posted by sto16
Can someone explain me what is a flywheels and what does it do?

Please, Im not technical when it comes to mechanical.

Thanks!!!!

Simon.
A flywheel adds rotating weight to the engine. Without a flywheel, several bad things would happen. First, it would be much harder to launch the car - it would stall very easily and you'd have to rev the car and slip the clutch on launch. Second, the revs would fall much quicker between shifts, making it very difficult to get smooth shifting.

It does other very important things as well, like aiding in the dynamic balancing and damping which helps to keep your motor in one piece.

The down side to a flywheel is that it adds rotating weight to the motor, which makes the overall car accelerate slower. Replacing the factory unit with a lighter flywheel makes the car more prone to stalls, but you will generally notice better acceleration, at least in first and second gear. This is a good thing for an '8 given their lack of torque from a stand still

I have one in my Miata and I love it. It was very easy to get used to. I hope to do one in my '8 as well.
__________________
You can't drive money.
GeorgeH is offline   Reply With Quote
Old 04-09-2004, 01:22 PM   #19
Registered User
 
Trader Score: (0)
Join Date: Feb 2004
Location: Long Island, New York
Posts: 25
Hey guys... wanted to clear one thing up. All RX-7/8 flywheels have a counterweight, including the ACT unit. The counterbalance mass requirement is a fixed amount. The radius at which the weight is placed on the flywheel determines how much actual weight is applied for counterbalancing. The end result has to be the same no matter how you do it. So what this means is weather you put a smaller weight towards the outside of the flywheel (like ours) or a larger one towards the inside (like the ACT and Mazdaspeed unit), the counterbalancing effect is the same. Hope this helps!
__________________
6-Spd Titanium GT | Stock except for UR 3-Piece Pulley Set
unorthodox is offline   Reply With Quote
Old 04-09-2004, 01:22 PM
RX8Club
Mazda RX8




Paid Advertisement


 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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 On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 07:10 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
All content Copyright 2007 by Internet Brands, Inc.
Emails Backup