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lightwieght flywheel upgrade


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sagaboy
New User

Aug 20, 2009, 6:49 AM

Post #1 of 6 (1113 views)
lightwieght flywheel upgrade Sign In

hi everyone i have nissan 180sx sr20det 2.0L engines and my question is what would the results be if i upgrade it with a lightweight flywheel ? would i have lowend and highend power ?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 20, 2009, 6:59 AM

Post #2 of 6 (1109 views)
Re: lightwieght flywheel upgrade Sign In

You would likely have just a little quicker acceleration but also quicker deceleration. You probably would even be able to notice any power difference. The motor is just carrying a little less weight when it's picking up RPMs but by the same token, that weight is what helps it maintain the RPM.



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DanD
Veteran / Moderator
DanD profile image

Aug 20, 2009, 7:28 AM

Post #3 of 6 (1105 views)
Re: lightwieght flywheel upgrade Sign In

You will defiantly see the rpm increase much quicker; whether that will equal more power all depends on what other modifications you plan on doing.
For example; the toilet bowl racer I use to work on; only really started to make good horsepower around three grand. We went with a lightweight flywheel to get there faster and it was brute horsepower that kept the rpm there. Pull your foot out of the throttle and the rpm dropped like a stone.
It takes more power to get a heavy flywheel spinning; but the inertia that builds up in a heavy flywheel helps keep it turning.
So look at the power band of your vehicle and see if you need higher rpm faster to get into the sweet spot.
It’s the whole package that makes more power not just one item.

Dan

Canadian "EH"






DanD
Veteran / Moderator
DanD profile image

Aug 20, 2009, 7:30 AM

Post #4 of 6 (1102 views)
Re: lightwieght flywheel upgrade Sign In

You must have been looking over my shoulder when I was typing my reply.
What can I say great minds. LOL

Dan.

Canadian "EH"






sagaboy
New User

Aug 21, 2009, 12:51 AM

Post #5 of 6 (1085 views)
Re: lightwieght flywheel upgrade Sign In

ok dan i apriciate your answer to my question about the flywheel thanx . but what do you think about my other upgrades done to my engine :
microtech ecu with 4x ignition booster
4 independant bosch coils
compression ratio 8:5:1 bore 86
cp pistons with eagle rods
calico coated main and rod bearings
gt35 turbo
cylinder head por and polish stage 2
264 in /264 ex brian crower stage 2 cams
brian crower valve springs with titanium retainers
rockerarm stoppers
plenum intake
760cc injectors
hp walbro feul pump
fmic 2.5" hot side and 3" cold side pipping
act clutch plate 6 puck no spring
heavy duty act pressure plate
do you think its a good setup and in the range of howmany horses do you think i am ? btw thanx again for the answer on my question and my name is michael i'm from aruba


sagaboy
New User

Aug 21, 2009, 12:53 AM

Post #6 of 6 (1084 views)
Re: lightwieght flywheel upgrade Sign In

thanx hammer time for your answer to my question






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