Flywheel flywheels flywheels.
07-07-2008, 10:00 AM
#451
9K RPM's = ♥♥
iTrader: (1)
Join Date: Apr 2007
Location: Oviedo, FL
Posts: 220
Likes: 0
Received 0 Likes
on
0 Posts
I bought my car used just over a year ago and highly doubt this cross stitch weld was ever done. I have been grinding a few of my gears lately and laughed when I read all of these symptoms.
I'm prob. already at the gears start to grind part and have roughly 43K. Does this mean it's def my clutch? Wondering if I need to put off other mods I had in mind for a new Lightweight Flywheel/Clutch?
First the pedal feels soft(but you slowly accomodate the changing feel), then the gears start to grind(and you wonder why you are losing your "touch" on the shifting), then the pedal will start clicking and creaking. Next, the spot welds POP and the clutch doesn't work anymore.
Last edited by S1lveRx8; 07-07-2008 at 10:02 AM.
07-08-2008, 03:16 PM
#452
charles i have deleloped a squeek everytime I engage the clutch pedal. Any idea if this means the pedal is starting to go.Though it looks and fills solid when i check for movement. Also how will the stage 2+ affect the life?
it took you longer than the rest of us to get sick of answering this question .
10-12-2008, 09:06 AM
#457
Grey Boy
Just wanted to say thanks.
I was looking at the Forged Chromoly Steel ProLite Flywheel by ACT. it was not advertised with the need for a counter wieght and states 9lbs as the total.
I would have been really pissed at myself had I purchased it and found it to be heavier then the Racing Beat Aluminum Flywheel kit.
good lookin out.
Thanks.
I was looking at the Forged Chromoly Steel ProLite Flywheel by ACT. it was not advertised with the need for a counter wieght and states 9lbs as the total.
I would have been really pissed at myself had I purchased it and found it to be heavier then the Racing Beat Aluminum Flywheel kit.
good lookin out.
Thanks.
10-12-2008, 05:42 PM
#459
Being (new) single rocks!
Join Date: Mar 2008
Location: Toronto, Ontario, Canada
Posts: 1,485
Received 0 Likes
on
0 Posts
According to Racing Beat, the factory wheel is 16.9 lbs. With the numbers we are talking about (3.8+ .75, or so) we really only begin to reduce weight when we go lighter than 12.35 lbs. on the flywheel. That's what made my clutches so unique; with my pressure plates weighing 3.8 lbs. less than most others the rotational mass reduced closely matched that of a complete flywheel swap. Or, you could effectively double the amount of reduced mass bu using both my flywheel and my pressure plate. SPEC and I will soon be sorting the issues out that we were having with them and get them back on the market.
10-12-2008, 06:55 PM
#460
10-20-2008, 01:46 PM
#461
Registered User
Join Date: Aug 2003
Location: Wisconsin
Posts: 89
Likes: 0
Received 0 Likes
on
0 Posts
Thanks for such an informative thread. My car is at the dealer now undergoing a transmission rebuild. I’m going with the ACT Prolight Flywheel and HDMM clutch kit while it’s apart.
Dealership is taking great care of me, and covering the transmission under warrantee. They found debris (shavings & chunks of gear teeth) in the trans oil while doing the 30k service. The strange thing is that the trans was working well and not even noisy when I brought it in. I had three separate instances over the last year of difficulty getting into 3rd, followed by grinding in 4th. I never forced it, the synchro just seemed to take awhile for 3rd to mesh, and then when going into 4th it would act like there was no synchro at all. Each time it cleared up within a few miles so I couldn’t duplicate it for the dealership. Last week my wife was driving the RX8 and she said it popped out of 2nd on her, but was working fine when I drove it latter that night. I’ve never had trans issues that were so intermittent, it will be interesting to see what they find when they open it up.
Dealership is taking great care of me, and covering the transmission under warrantee. They found debris (shavings & chunks of gear teeth) in the trans oil while doing the 30k service. The strange thing is that the trans was working well and not even noisy when I brought it in. I had three separate instances over the last year of difficulty getting into 3rd, followed by grinding in 4th. I never forced it, the synchro just seemed to take awhile for 3rd to mesh, and then when going into 4th it would act like there was no synchro at all. Each time it cleared up within a few miles so I couldn’t duplicate it for the dealership. Last week my wife was driving the RX8 and she said it popped out of 2nd on her, but was working fine when I drove it latter that night. I’ve never had trans issues that were so intermittent, it will be interesting to see what they find when they open it up.
02-28-2009, 05:29 AM
#463
Registered User
Join Date: Oct 2008
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
Hi I want buy the ACT Prolite Flywheel an I found this on ebay. It's a manual european Rx 8
It's for a flywheel and the counterweight. What do you think about the price and I will brig my Rx 8 to my garage to install. I read the whole thread but I'm not sur what else i must buy
Do I need also bolts? Did I forgot anything else?
thanks for your Help
Remi
It's for a flywheel and the counterweight. What do you think about the price and I will brig my Rx 8 to my garage to install. I read the whole thread but I'm not sur what else i must buy
Do I need also bolts? Did I forgot anything else?thanks for your Help
Remi
02-28-2009, 06:20 AM
#464
Registered
Join Date: Jun 2006
Location: Dublin, Ireland
Posts: 236
Likes: 0
Received 0 Likes
on
0 Posts
Hi I want buy the ACT Prolite Flywheel an I found this on ebay. It's a manual european Rx 8
It's for a flywheel and the counterweight. What do you think about the price and I will brig my Rx 8 to my garage to install. I read the whole thread but I'm not sur what else i must buy Do I need also bolts? Did I forgot anything else?
thanks for your Help
Remi
It's for a flywheel and the counterweight. What do you think about the price and I will brig my Rx 8 to my garage to install. I read the whole thread but I'm not sur what else i must buy
Do I need also bolts? Did I forgot anything else?thanks for your Help
Remi
As for price check with BHR, https://www.rx8club.com/series-i-major-horsepower-upgrades-93/black-halo-racings-product-line-146611/
I am sure Charles can cut you a good deal.
03-01-2009, 11:33 AM
#465
BDC Motorsports
You won't like me, Ray.
I still think you guys oughta stay with the 17lbs stock flywheel if any of ya'll are thinking about doing straight-line drag racing. The heavier the better; that's the rule there.
But, since it's a zero overlap motor, a lighter one can be used for street and some Auto-X stuff. Just not sure how light I'd go myself. Even though there's technically an advantage of using a lighter flywheel, there's also disadvantages.
B
I still think you guys oughta stay with the 17lbs stock flywheel if any of ya'll are thinking about doing straight-line drag racing. The heavier the better; that's the rule there.
But, since it's a zero overlap motor, a lighter one can be used for street and some Auto-X stuff. Just not sure how light I'd go myself. Even though there's technically an advantage of using a lighter flywheel, there's also disadvantages.
B
03-01-2009, 04:29 PM
#466
as someone who does a good deal of drag racing, you've got my ear.
i am under the impression that a lighter flywheel will shorten my ETs. the only thing i can think of here is launching, a heavier wheel being able to carry more momentum. but since im not on slicks and im launching @ 4500rpm i cant see this as a problem. also, since the greatest returns on a lightweight flywheel are in first, i dont understand.
please explain in more detail, i'd like to know.
edit: i found this when searching the topic on the net.
i am under the impression that a lighter flywheel will shorten my ETs. the only thing i can think of here is launching, a heavier wheel being able to carry more momentum. but since im not on slicks and im launching @ 4500rpm i cant see this as a problem. also, since the greatest returns on a lightweight flywheel are in first, i dont understand.
please explain in more detail, i'd like to know.
edit: i found this when searching the topic on the net.
You're quite wrong in my opinion. Comparisons have been made though I don't immediately have a reference for you. The aluminum flywheel has a lower inertia, therefore it decelerates more quickly but it also accelerates more quickly. Mass is even more important when it's spinning because the mass and radius are both factors in the inertia. Think about how much time you spend in the midst of a gear change or on launch versus the time spent on the throttle accelerating. For maybe 90% of that drag run you're working against the inertia of that heavy flywheel trying to accelerate it. You reduce flywheel weight for the same reason you drop weight anywhere else on a car, Acceleration = Force/Mass.
Last edited by kersh4w; 03-01-2009 at 04:35 PM.
03-04-2009, 02:07 PM
#467
right, which is why a flywheel that is as light as humanly tolerable is the way to go imo.
especially since, due to gearing magnifying the returns, we see the greatest results in first, then second, then third, which is what most of the race is in anyway.
edit: one of my favorite links for flyhweels: using an m3 as an example.
http://www.uucmotorwerks.com/CTSV/LFWCTSV.htm
especially since, due to gearing magnifying the returns, we see the greatest results in first, then second, then third, which is what most of the race is in anyway.
edit: one of my favorite links for flyhweels: using an m3 as an example.
http://www.uucmotorwerks.com/CTSV/LFWCTSV.htm
Last edited by kersh4w; 03-04-2009 at 02:17 PM.
03-04-2009, 06:14 PM
#468
So this means......
The glass is either half full or half empty.
They only thing I can add is......
A few who have FI'd the RX8 have posted they like the stock flywheel over the lighter one due to driving ability.
Application must come into play when deciding to install a flywheel.
The glass is either half full or half empty.
They only thing I can add is......
A few who have FI'd the RX8 have posted they like the stock flywheel over the lighter one due to driving ability.
Application must come into play when deciding to install a flywheel.
05-22-2009, 09:14 PM
#470
Being (new) single rocks!
Join Date: Mar 2008
Location: Toronto, Ontario, Canada
Posts: 1,485
Received 0 Likes
on
0 Posts
lightweight flywheel makes MORE of a difference on FI cars.
http://www.euclideanspace.com/physic...city/index.htm
http://www.euclideanspace.com/physic...city/index.htm
06-20-2009, 03:16 PM
#471
Registered User
Join Date: Dec 2008
Location: MD
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
hows it going
has anyone heard of the F1 racing fly wheel???
i got one
it does feel better
but idk
what do u guys thing
i know this might b out of topic but
when getting a clutch kit stage 2 my cluth pedal feels softer
is this suppouse to happen??
or is there anithign i can do to make it feel stroger??
has anyone heard of the F1 racing fly wheel???
i got one
it does feel better
but idk
what do u guys thing
i know this might b out of topic but
when getting a clutch kit stage 2 my cluth pedal feels softer
is this suppouse to happen??
or is there anithign i can do to make it feel stroger??
04-24-2010, 11:54 AM
#473
Xboxgametag:Chafed Banana
Join Date: Mar 2008
Location: Chicago, IL.
Posts: 137
Likes: 0
Received 0 Likes
on
0 Posts
Unorthodox
http://www.horsepowerfreaks.com/pric...eels/Flywheels
Mazda RX8 Flywheels - Unorthodox Ultra L - Aluminum Flywheels
Unorthodox Flywheels Ultra L - Aluminum Flywheels
Photo may differ for each model
Unorthodox Ultra L - Aluminum Flywheels Flywheels - Larger Picture
Unorthodox Racing's Ultra Light aluminum flywheels have some key advantages over stock and other aftermarket units. Machining tolerances are extremely important when making a flywheel. Parallelism on Unorthodox Racing's units is kept to within .001, the most accurate in the industry. Dowel pins are hardened steel units and all hardware is grade 8 (grade 10.9 metric equivalent), the highest grade of fastener available today. Torque plates are also included in applications where required and flywheels are checked for zero-balance before shipping.
Unorthodox Racing's friction insert (heat shield) is a specially treated alloy steel with a surface that is much stronger than the stock flywheel. All inserts are CNC-machined instead of being quickly ground like most aftermarket units, and are replaceable on all the models they make if ever damaged.
All ring gears are heated before they are placed on the flywheel and then cooled to shrink them in place. In addition they are bolted to ensure the ring gear will never slip or come off the flywheel under any circumstances.
Unorthodox Racing's flywheel weights are chosen very carefully. They are the perfect balance of strength and lightweight. Because of their lightweight, energy normally used to turn the heavy stock steel flywheel is now used to turn your drive wheels! In addition, the reduced mass allows the engine to rev faster and get you into your power band more quickly. For turbo cars this is an even greater advantage, allowing the turbo to kick in faster since the engine is revving more quickly! Unorthodox Racing's flywheels are the perfect choice for street use, drag racing, autocross, and road race events. Horsepower gains for aluminum flywheels can average from 10 to 30 horsepower over stock levels at the drive wheels.
Ultra Light aluminum flywheels are available for most applications, foreign and domestic. Flywheel weights are listed in the application tables on this website. If you are looking for a specific flywheel application and it is not listed please contact us.
Mazda RX8 Flywheels - Unorthodox Ultra L - Aluminum Flywheels has an average rating of 9.18 with 11 reviews.
http://www.horsepowerfreaks.com/pric...eels/Flywheels
Mazda RX8 Flywheels - Unorthodox Ultra L - Aluminum Flywheels
Unorthodox Flywheels Ultra L - Aluminum Flywheels
Photo may differ for each model
Unorthodox Ultra L - Aluminum Flywheels Flywheels - Larger Picture
Unorthodox Racing's Ultra Light aluminum flywheels have some key advantages over stock and other aftermarket units. Machining tolerances are extremely important when making a flywheel. Parallelism on Unorthodox Racing's units is kept to within .001, the most accurate in the industry. Dowel pins are hardened steel units and all hardware is grade 8 (grade 10.9 metric equivalent), the highest grade of fastener available today. Torque plates are also included in applications where required and flywheels are checked for zero-balance before shipping.
Unorthodox Racing's friction insert (heat shield) is a specially treated alloy steel with a surface that is much stronger than the stock flywheel. All inserts are CNC-machined instead of being quickly ground like most aftermarket units, and are replaceable on all the models they make if ever damaged.
All ring gears are heated before they are placed on the flywheel and then cooled to shrink them in place. In addition they are bolted to ensure the ring gear will never slip or come off the flywheel under any circumstances.
Unorthodox Racing's flywheel weights are chosen very carefully. They are the perfect balance of strength and lightweight. Because of their lightweight, energy normally used to turn the heavy stock steel flywheel is now used to turn your drive wheels! In addition, the reduced mass allows the engine to rev faster and get you into your power band more quickly. For turbo cars this is an even greater advantage, allowing the turbo to kick in faster since the engine is revving more quickly! Unorthodox Racing's flywheels are the perfect choice for street use, drag racing, autocross, and road race events. Horsepower gains for aluminum flywheels can average from 10 to 30 horsepower over stock levels at the drive wheels.
Ultra Light aluminum flywheels are available for most applications, foreign and domestic. Flywheel weights are listed in the application tables on this website. If you are looking for a specific flywheel application and it is not listed please contact us.
Mazda RX8 Flywheels - Unorthodox Ultra L - Aluminum Flywheels has an average rating of 9.18 with 11 reviews.
If the following statement is true: "All ring gears are heated before they are placed on the flywheel and then cooled to shrink them in place. In addition they are bolted to ensure the ring gear will never slip or come off the flywheel under any circumstances." How is it possible that I am able to turn the ring gear with my finger quite easily when the car is in gear? There are no broken bolt fragments laying in the bottom of the case and my starter and solenoid work fine.
08-21-2010, 04:45 AM
#474
is there such a thing as a too light?? im looking ate eithere the Findanza 8.5 or the prolite..i currently hav the streetlite and i ddnt notice any differnce because with the counterwieght it actually weighs more than the stock
