UR vs JWT flywheel
11-05-2005, 11:41 AM
#5
Registered User
iTrader: (18)
Join Date: Aug 2005
Location: Villanova University
Posts: 1,072
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Rickdogg
Adam from Z1 sells a lot of the UR flywheels. Ask for his opinion. Both should be good. Keep in mind that going too light such as the tilton is very unstreetable sicne the flywheel is so light. Torque would be diminished as well.
11-05-2005, 02:54 PM
#7
Registered User
Thread Starter
iTrader: (2)
Join Date: Mar 2005
Location: Texas
Posts: 526
Likes: 0
Received 0 Likes
on
0 Posts
How will torque be diminished? I am looking to build my car up with these goals in mind : I want to have a N/A Z that I can use as a daily driver, safe and very reliable. I want its performace upgrades to be geared towards quick acceleration and not towards top speed. I don't track the car, the only times I'll be driving this hard is during spirited country drives (I'm from texas) and when that E46 M3 pulls up next to me at a stoplight and tries to bring it... So that's what I want out of my performance upgrades. I thought the flyhweel would aid in my low end acceleration goals, but I know that I'll need lots of torque for that, so if it diminshes torque then it seems that a flywheel will be counter to my goals. Your thoughts rick?
Trending Topics
11-06-2005, 10:04 PM
#8
Originally Posted by 03_Track_Z
How will torque be diminished? I am looking to build my car up with these goals in mind : I want to have a N/A Z that I can use as a daily driver, safe and very reliable. I want its performace upgrades to be geared towards quick acceleration and not towards top speed. I don't track the car, the only times I'll be driving this hard is during spirited country drives (I'm from texas) and when that E46 M3 pulls up next to me at a stoplight and tries to bring it... So that's what I want out of my performance upgrades. I thought the flyhweel would aid in my low end acceleration goals, but I know that I'll need lots of torque for that, so if it diminshes torque then it seems that a flywheel will be counter to my goals. Your thoughts rick?
The advantages of a lightweight flywheel is the revs do rise faster, but you also have to keep in mind that it drops a lot faster as well. If you are not road racing, a JWT, UR, or Fidanza is light enough (~14lbs) and is still very streetable. I have the JWT clutch and flywheel combo and it feels like stock to me with a bit more noise, which is normal. I am not bothered by the extra noise but some people like their sportscars quiet for some odd reason
11-06-2005, 11:27 PM
#9
Registered User
iTrader: (4)
Join Date: Nov 2003
Location: WA
Posts: 160
Likes: 0
Received 0 Likes
on
0 Posts
can some one plz help a newbie out here? I just bought the UR flywheel, and according to the seller this clutch works with the stock clutch, so should i still change the clutch? how does clutch improve performance? also, what's is a pressure plate? is it something that i must get if i am going to replace the clutch?
thx in advance
thx in advance
11-06-2005, 11:56 PM
#10
Originally Posted by 100122923
can some one plz help a newbie out here? I just bought the UR flywheel, and according to the seller this clutch works with the stock clutch, so should i still change the clutch? how does clutch improve performance? also, what's is a pressure plate? is it something that i must get if i am going to replace the clutch?
thx in advance
thx in advance
11-07-2005, 06:14 AM
#11
Registered User
iTrader: (7)
Join Date: Apr 2005
Location: Bradenton/Sarasota
Posts: 5,254
Likes: 0
Received 0 Likes
on
0 Posts
Rick, I think you're mistaken. A lighter flywheel by no means diminishes torque.
A lighter flywheel simply allows better transfer of the power through the drivetrain to the wheels. There's less power absorbed by the flywheel due to the lightness of the rotational mass. Therefore, instead of absorbing power as a heavier flywheel would (needed to spin the heavier mass), it transfers it through to the ground. Obviously throttle response is better and the engine is more eager to rev. If anything it will free up some horsepower and torque.
A lighter flywheel simply allows better transfer of the power through the drivetrain to the wheels. There's less power absorbed by the flywheel due to the lightness of the rotational mass. Therefore, instead of absorbing power as a heavier flywheel would (needed to spin the heavier mass), it transfers it through to the ground. Obviously throttle response is better and the engine is more eager to rev. If anything it will free up some horsepower and torque.
11-07-2005, 10:50 AM
#12
Registered User
iTrader: (3)
Join Date: May 2005
Location: Los Angeles, CA
Posts: 289
Likes: 0
Received 0 Likes
on
0 Posts
i installed my JWT fly this weekend and it kicked my ***, but i did notice it the miniute i started the car. the engine will rev easier. this makes rev matching on downshift a lot easier. the car feels a bit more raw. overall i like it,but understand that it will not make a huge difference and that it will chatter a bit more that stock so be sure ur prepared for it . it doenst bother me but some people cry about it. the stock flywheel makes noise anyway so ur probably used to it already. and if ur dropping the trans then do the clutch at the same time cuz if ur doing it ur self it is a pain in the *** and if ur paying to have it done u will pay twice for the same thing. hope this helps
11-07-2005, 11:15 AM
#13
Originally Posted by chimmike
Rick, I think you're mistaken. A lighter flywheel by no means diminishes torque.
A lighter flywheel simply allows better transfer of the power through the drivetrain to the wheels. There's less power absorbed by the flywheel due to the lightness of the rotational mass. Therefore, instead of absorbing power as a heavier flywheel would (needed to spin the heavier mass), it transfers it through to the ground. Obviously throttle response is better and the engine is more eager to rev. If anything it will free up some horsepower and torque.
A lighter flywheel simply allows better transfer of the power through the drivetrain to the wheels. There's less power absorbed by the flywheel due to the lightness of the rotational mass. Therefore, instead of absorbing power as a heavier flywheel would (needed to spin the heavier mass), it transfers it through to the ground. Obviously throttle response is better and the engine is more eager to rev. If anything it will free up some horsepower and torque.
is heavy as the Z is
11-08-2005, 05:24 AM
#18
Registered User
Join Date: Jul 2002
Location: Charlotte, NC
Posts: 4,052
Likes: 0
Received 0 Likes
on
0 Posts
Umm... no... the JUN flywheel is the same weight as the JWT flywheel... about 14lbs. More importantly, at least on my car, I get virtually no flywheel 'chatter'. There is very slight chatter at idle with the clutch let out. If I put the clutch in, the noise completely goes away and there is absolutely no chatter above idle.
I believe it costs the same as the JWT. You can order it through Adam at Z1Auto
I believe it costs the same as the JWT. You can order it through Adam at Z1Auto
11-09-2005, 03:13 AM
#19
Registered User
Go with the most affordable of the two (JWT).
Prior to purchasing my UR flywheel I was assured it was a quiet as stock - NOT!
However, it is a nice mod. It makes the VQ feel like a much smaller motor in terms of responsiveness.
Prior to purchasing my UR flywheel I was assured it was a quiet as stock - NOT!
However, it is a nice mod. It makes the VQ feel like a much smaller motor in terms of responsiveness.
11-10-2005, 11:10 AM
#20
