|
Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
|
Thread Tools | Search this Thread |
02-09-2012, 02:27 PM | #1 |
Senior Member
Join Date: Jan 2012
Drives: 2013 Whiteout FR-S
Location: Laurel, MD
Posts: 5,364
Thanks: 2,704
Thanked 3,016 Times in 1,711 Posts
Mentioned: 106 Post(s)
Tagged: 3 Thread(s)
|
ATS carbon clutch collaboration model prototype clutch 86 & BRZ
From the Luck Blog
Is pleased with whether there are more are accessible to the surprised and tripling was out of the articles 86 & BRZ yesterday but I am pleased with getting many blog access has recently shown interest in this car only this I! Also today, I Yurushite topic · car so I'm sorry neta in an additional 86 & BRZ This is the clutch. Ones come with the launch of ATS's future is under construction specifications for the rack with a different spec is a carbon clutch which he also currently developing in San ATS. While asking for more ease of riding, we are currently under development in the content enough to withstand even sports driving. Response can be up more in the lightweight flywheel, you should be able to deliver the clutch sport full marks degree easy to ride as much as possible while holding the judder. (Including tax) ¥ 168.000 tentative If you have completed, so early reservation special prices also served, it welcomes inquiries from everyone. Also Pulley Work Is in development for various pulley 86 and the BRZ. For now, the heaviest crank is, of course, alternator and power steering also for work in progress, the launch of the car is makeshift. I tell you the price as soon as complete The image (s) · · · ¥ 33.000 is set for GRB |
02-09-2012, 02:32 PM | #2 |
i'm sorry, what?
Join Date: Jan 2012
Drives: Canada
Location: I rock a beat harder than you can beat it with rocks
Posts: 4,399
Thanks: 357
Thanked 2,506 Times in 1,268 Posts
Mentioned: 40 Post(s)
Tagged: 3 Thread(s)
|
over in subaru land, the discussions of lightweight crank pullies combined with lightweight flywheels are never ending and never definitive
i wonder what the consensus will be over on this side :/
__________________
don't you think if I was wrong, I'd know it?
|
02-09-2012, 02:33 PM | #3 |
Senior Member
Join Date: Jan 2012
Drives: 2013 Whiteout FR-S
Location: Laurel, MD
Posts: 5,364
Thanks: 2,704
Thanked 3,016 Times in 1,711 Posts
Mentioned: 106 Post(s)
Tagged: 3 Thread(s)
|
haha.
|
02-09-2012, 03:27 PM | #4 |
Supra Owner
Join Date: Sep 2010
Drives: 1995 Toyota Supra UK Spec
Location: New Zealand
Posts: 440
Thanks: 0
Thanked 6 Times in 3 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
As there are quite a few people here that understand a decent amount of physics, I'd say the consensus should be clear - they ARE better, but the weight saving is not worth the money you spend for them (referring to LW pulleys. LW flywheels are a different story)...
__________________
|
02-09-2012, 03:42 PM | #5 |
i'm sorry, what?
Join Date: Jan 2012
Drives: Canada
Location: I rock a beat harder than you can beat it with rocks
Posts: 4,399
Thanks: 357
Thanked 2,506 Times in 1,268 Posts
Mentioned: 40 Post(s)
Tagged: 3 Thread(s)
|
see, it has begun
__________________
don't you think if I was wrong, I'd know it?
|
02-09-2012, 03:57 PM | #6 |
Rotating assemblies are expensive, why risk it on an over rev? I will never understand this light weight pulley crap, the rotational mass is focused toward the hub vs the radius of the pulley anyway. If you really want to drop rotational mass off of your crankshaft/rotating assembly install a light weight flywheel and leave the stock pulley alone. Only an ATi damper could be considered an upgrade.
I have also run an ATS carbon twin plate in a car before. It was pretty horrible, forget launching the car unless you put a ton of heat in it by slipping it first. Wait for OS Giken to release a super single. The most streetable basket clutches on the market by far. |
|
02-09-2012, 04:07 PM | #7 |
Senior Member
Join Date: Mar 2011
Drives: '06 AM V8V Coupe
Location: United States of America
Posts: 5,279
Thanks: 285
Thanked 1,074 Times in 759 Posts
Mentioned: 13 Post(s)
Tagged: 1 Thread(s)
|
Is it true that very lightweight flywheels are almost undriveable on the street? In that case, a lightweight pulley would be completely useless if you can shave off a tiny bit of mass from the flywheel.
|
02-09-2012, 04:20 PM | #8 |
A light weight flywheel reduces inertia. This means that the engine will have less mass to overcome to accelerate (improve transient response) but will also lose revs faster between gears for the same reason. You may need to rev your engine a little higher and be faster/smoother when you shift to compensate for the faster drop in engine speed. I have done light weight flywheels on pretty much every car I have owned, and will continue to do so because the downsides, for me at least, do not out weight the advantages.
|
|
02-09-2012, 04:27 PM | #9 | |
MODERATOR-SAMA
Join Date: Oct 2009
Drives: Swagtron Scooter
Location: Seattle
Posts: 2,685
Thanks: 345
Thanked 1,562 Times in 524 Posts
Mentioned: 81 Post(s)
Tagged: 0 Thread(s)
|
Quote:
lightweight pullies arnt useless.. you really have to look at the application. Some crank pullies for many cars are stupid heavy and can use some lightening.
__________________
|
|
02-09-2012, 04:34 PM | #10 |
Senior Member
Join Date: Mar 2011
Drives: '06 AM V8V Coupe
Location: United States of America
Posts: 5,279
Thanks: 285
Thanked 1,074 Times in 759 Posts
Mentioned: 13 Post(s)
Tagged: 1 Thread(s)
|
What I was getting at was that the overall moment of inertia of the engine comes from the pulleys, crank, and flywheel together. If the flywheel mass has a lower limit due to driveability, then there's not much of a point in switching pulleys because why subtract rotational inertia from 2 places (flywheel and pulley) when you can just subtract it from 1 (flywheel). The mass removed from the flywheel will have a much larger effect, and if you can just replace the flywheel to get the desired effect, there's no need to shave mass from the pulleys when you can just shave a little off the flywheel (I think machining flywheels a little is safe practice right?)
|
02-09-2012, 04:42 PM | #11 | |
i'm sorry, what?
Join Date: Jan 2012
Drives: Canada
Location: I rock a beat harder than you can beat it with rocks
Posts: 4,399
Thanks: 357
Thanked 2,506 Times in 1,268 Posts
Mentioned: 40 Post(s)
Tagged: 3 Thread(s)
|
Quote:
however it really is a preference thing, clutch type also matters rule #1, find someone with your car who has done a light flywheel and ask for a ride along. a good friend of mine upgraded to some super heavy duty clutch and hated every moment since. Sure it may hold down his power during a launch, but what about the other 99.9% of the time driving on the roads
__________________
don't you think if I was wrong, I'd know it?
|
|
02-09-2012, 05:09 PM | #12 | |
Senior Member
Join Date: Mar 2011
Drives: FRS :D
Location: Vancouver BC
Posts: 2,985
Thanks: 545
Thanked 699 Times in 438 Posts
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
|
Quote:
I find that with any mod on a DD. Do the pros of the mod outweight the cons for DDing
__________________
Out of the FRS game
|
|
02-09-2012, 05:24 PM | #13 | |
Quote:
|
||
02-09-2012, 05:32 PM | #14 | |
GL 86!
Join Date: Mar 2011
Drives: Maybe FR-S... maybe not
Location: NA
Posts: 356
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
Quote:
Tach can't keep pace if there is no load... [u2b]AVktH3nS6D0[/u2b] As much as I would like to have that flywheel, my driving simply takes me through to many altitude changes during daily driving for it to be worth while. |
|
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
No Carbon Fiber Roof!? | Slide | Scion FR-S / Toyota 86 GT86 General Forum | 54 | 07-15-2012 10:16 PM |
Hi-res pics & list of BRZ JDM model grades from stripped down base model to STI(?) | switchlanez | BRZ First-Gen (2012+) -- General Topics | 68 | 02-14-2012 07:16 AM |
Carbon Fiber Hood/Trunk | lunchbox | BRZ First-Gen (2012+) -- General Topics | 64 | 01-06-2012 11:03 AM |
Toyota, Subaru and... Carbon Fiber! | virobloc | Scion FR-S / Toyota 86 GT86 General Forum | 10 | 10-16-2010 11:46 PM |
2011 Chevrolet Corvette Z06 Carbon slots in right below ZR1 | vh_supra26 | Other Vehicles & General Automotive Discussions | 2 | 03-14-2010 09:09 PM |