View Full Version : lightweight flywheel
MoDCoN
31-10-2005, 12:49 PM
hey guys just a quick q for you d-series owners...
does anyone here have a d series audm eg with a lightweight flywheel? do any companies offer a flywheel for these cars?
thanks for any replies!
MoD
bennjamin
31-10-2005, 01:06 PM
I have a EG5 - and i have a TODA flywheel :)
http://www.ozhonda.com/gallery/watermark.php?file=500/79DSCF0004.JPG
Cost a pretty penny but worth it IF replacing clutch at the same time....low speed driving = no different to stock BUT once you start revving u will notice the response difference.
You can get TODA , Exedy locally/imported - or even a JUN etc.
Otherwise you can import from the US - search on www.d-series.org for more info.
i have an exedy light weight goin into my zcasauraus soon :thumbsup:
lerroy
31-10-2005, 02:37 PM
i know wont help much but i have a Toda lightweight fly in my DC2
i noticed straight away a improvment over the stock revs quicker through the rev range
it doesnt equate to more kw but car is more responsive and just feels quicker hard to explain
but alas i have now got used to it :( but i still would recommend this upgrade to anyone
on a side note it now takes more revs to keep the car cruising say on highway drives but not a big issue
My toda fly cost $730 about 8 months ago now i also had the clutch changed at the same time becasue your taking the clutch out to get to the fly and its not cheap for a mechanic to go there....
bennjamin
31-10-2005, 02:46 PM
i know wont help much but i have a Toda lightweight fly in my DC2
i noticed straight away a improvment over the stock revs quicker through the rev range
it doesnt equate to more kw but car is more responsive and just feels quicker hard to explain
but alas i have now got used to it :( but i still would recommend this upgrade to anyone
on a side note it now takes more revs to keep the car cruising say on highway drives but not a big issue
My toda fly cost $730 about 8 months ago now i also had the clutch changed at the same time becasue your taking the clutch out to get to the fly and its not cheap for a mechanic to go there....
didnt know u got one eh Lerroy ? Nice :)
A lightweight flywheel does not increase HP at all - essentially it feels like the car has much less weight to haul around and the response in both acceleration and deceleration is increased.
Yup - saves you to install the flywheel at the same time as a new clutch - $300 labour to do it in so save up and get it done in one hit .
lerroy
31-10-2005, 02:57 PM
it is true i do have one :P
As ben said i dynoed my car after there was no improvment in KW numbers
although the curve had more of an angle to it steeper climb :P
when i first drove the car from the garage i was very happy felt like a new car very responsive
when you let your foot off now you will notice a bump especiely in 1st gear because the flywheel does not have as much enertia being lighter so it stop/slows alot quicker this is something you have to get used to
its not a big deal :P
good luck with purchase you should be happy if you stick with the brands mentioned
there is another option where you machine the stock flywheel taking off excess metal this lightens the stock wheel but can casue problems in the long run the wheels becomes weaker and prone to warp and or cracks, the right person has to do it for you
bleh im doin mine asap now, thanks leeroy :p
lerroy
31-10-2005, 03:16 PM
Trav lerroy !!
hahaha
and no worrys mate just pm you back
Zdster
31-10-2005, 03:19 PM
Just curious, do you get better fuel economy with a lightened flywheel as it takes less energy to turn the flywheel? Anyone know/have any idea?
Trav lerroy !!
hahaha
and no worrys mate just pm you back
lol woops, i MPed u back mate :p
bennjamin
31-10-2005, 03:32 PM
Just curious, do you get better fuel economy with a lightened flywheel as it takes less energy to turn the flywheel? Anyone know/have any idea?
Interesting thought there - we need some professional advice in terms of energy conversion and storage methinks.
The problem is you will find yourself revving the car much more for obvious reasons :)
Also , IMO i would not machine a stock flywheel at all - not just for safety reasons but for the results in comparision to a aftermarket item. ( IE you cannot machine a stock flywheel down to the level of a aftermarket one reliably)
wynode
31-10-2005, 03:38 PM
Just curious, do you get better fuel economy with a lightened flywheel as it takes less energy to turn the flywheel? Anyone know/have any idea?
I think it depends on whether you are doing highway driving (fixed speed) or city driving (variable speed).
Highway driving - More inertia with stock flywheel = easier to keep speed
City driving - Less inertia with lightened flywheel = less work required to accelerate.
lerroy
31-10-2005, 03:38 PM
yeah fuel economy tough one...
hmm
fly is lighter less fuel to turn it
but takes more revs to keep it spinning
from what i have done it seems i lost a few kms to the tank but when i got it done car was tuned also :( so i cant comment
Zdster
31-10-2005, 04:39 PM
City driving - Less inertia with lightened flywheel = less work required to accelerate.
Yes, but as Ben said it requires more reving as well.
fly is lighter less fuel to turn it
but takes more revs to keep it spinning
After reading a number of threads that is what I was thinking.
I suppose it is like with the higher octane fuel - any potential benefits you may see evaporate as you tend to drive the car harder.
aStRooo
31-10-2005, 04:44 PM
i wasnt aware that exedy had a lightened flywheel for the D-series Ben. wouldnt happen to have a part number would u? =)
lerroy
31-10-2005, 05:33 PM
I suppose it is like with the higher octane fuel - any potential benefits you may see evaporate as you tend to drive the car harder.
yeah thats what i was thinking.....
hills are a bit harder to get up to casue you dont have the momentum as well
bennjamin
31-10-2005, 05:42 PM
i wasnt aware that exedy had a lightened flywheel for the D-series Ben. wouldnt happen to have a part number would u? =)
I had one on my engine previosu but got a new TODA item in - please PM "egSi" on this forum as he bought my Exedy flywheel off me , he should find a number on there somewhere.
wynode
31-10-2005, 05:59 PM
Yes, but as Ben said it requires more reving as well.
As in?
PS: I read through ben's posts and can't find what you are reffering to!
Zdster
31-10-2005, 06:16 PM
As in?
PS: I read through ben's posts and can't find what you are reffering to!
My bad - I mis-read/quoted Ben.
What I meant was (as far as I understand) you end up reving more to maintain the same rpm's simply because the flywheel is lighter and will not continue to spin under its own momentum
(I think this is the right understanding although please correct me if I am wrong).
wynode
31-10-2005, 06:19 PM
Well on the freeway (regardless of the flywheel) you would have to keep your foot on the accelerator to maintain speed. It's just that if you take it off the accelerator, the car will slow down quicker with a lightened flywheel.
But around town......it would be less work for the engine with a lighter flywheel.
bennjamin
31-10-2005, 06:27 PM
My bad - I mis-read/quoted Ben.
What I meant was (as far as I understand) you end up reving more to maintain the same rpm's simply because the flywheel is lighter and will not continue to spin under its own momentum
(I think this is the right understanding although please correct me if I am wrong).
I refered to the "obvious WANT to rev more with a light-weight responsive flywheels" lol !
BTW afaik the exact same revs have to be maintained with a stock vs lightweight flywheel to acheive the same revs/road speed in any given gear BUT its the very maintenance of a lightweight flywheel that is different. Revs will rise and drop much quicker as the engines energy is not stored (think a soft spring in comparison to a stiffer spring of the same length) , and Ive noticed there is less engine-braking availible than before ( you will resort to usign the brakes a fair amount more)
Zdster
31-10-2005, 06:42 PM
Well on the freeway (regardless of the flywheel) you would have to keep your foot on the accelerator to maintain speed. It's just that if you take it off the accelerator, the car will slow down quicker with a lightened flywheel.
But around town......it would be less work for the engine with a lighter flywheel.
Using the freeway example however, you need to apply more pressure to the pedal, more often to maintain the same speed than with a standard flywheel.
Thinking out load, around town wouldnt you need more petrol as you while it takes less effort to turn the engine, the revs will drop faster in stop and start traffic meaning you will need to accelerate more often and hence use more petrol???
I refered to the "obvious WANT to rev more with a light-weight responsive flywheels" lol !
Thats what I misinterpreted :). Using that example any savings in fuel economy would obviously be used up.
MoDCoN
31-10-2005, 10:27 PM
I have a EG5 - and i have a TODA flywheel :)
http://www.ozhonda.com/gallery/watermark.php?file=500/79DSCF0004.JPG
Cost a pretty penny but worth it IF replacing clutch at the same time....low speed driving = no different to stock BUT once you start revving u will notice the response difference.
You can get TODA , Exedy locally/imported - or even a JUN etc.
Otherwise you can import from the US - search on www.d-series.org for more info.
hey ben
whee would i find one of these? cos im looking at the toda website... and they aint sayin anythin to me! :(. should i try traders on this forum?
pornstar
31-10-2005, 10:31 PM
if ur after toda and ur in melbourne, ill get them for u. (toda_au can confirm this)
wynode
31-10-2005, 10:34 PM
hey ben
whee would i find one of these? cos im looking at the toda website... and they aint sayin anythin to me! :(. should i try traders on this forum?
Right here (http://www.ozhonda.com/forum/showthread.php?t=13667&page=1&pp=12&highlight=flywheel)!
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