Advantage & Disadvantage to replace the Aluminium lighten Crank Pully

[ericgtmythos]

Hello all sifu here,

I have some doubts to confused me to decide replace the aluminium crank pully instead of original crank pully...??:hmmmm:

For some experience sifu let me know the comparison as below:

Advantage:
1) Will improve engine torque....coz lighten make the pully turning fast..

Disadvantages :
1) Lost the crank balancing, in future may be the crank bearing will facing un-balance friction..
2) Unknow or Un-estimate damage causes....to crank or related portion..

So i would like to asking more suggestion & opinion for those sifu who have experience to use the lighten aluminium crank pully on your 3S-GTE before...

Dozo Yoroshiku....
Thanks for advice:ciao:

 

[Barbarian]

I dunno about the 3S-GTE engine.... but for a 2zzge engine, it's suicidal.....

 

[ericgtmythos]

Hi bro Bar,

Why like that :hmmmm:??...have u try before & worst result for side effect??

Thanks for sharing...

 

[zeus83]

wat cam pulley u intend to use bro eric?

im planing to go works or hks cam pulley, maybe camshaft as well....still undecided :hmmmm:

 

[BoxCarRacer]

zeus83 ,

I think he's talking about Crank & not Cam bro.

 

[zeus83]

zeus83 ,

I think he's talking about Crank & not Cam bro.

my bad

anyways we can share cam pulley experience as well...

 

[Barbarian]

unbalanced crank pulley causes alot of 2zzge engine to go kaput..... the first thing to go is the oil pump gear.... will shatter to pieces and if the car is not stopped immediately, engine kaput.....

I've got aftermarket oil pump gears so it was fine for me... :) but I removed the aftermarket crank pulley after a couple of months as the benefit gained is not worth the risk.....

 

[xtremeleo]

unbalanced crank pulley causes alot of 2zzge engine to go kaput..... the first thing to go is the oil pump gear.... will shatter to pieces and if the car is not stopped immediately, engine kaput.....

I've got aftermarket oil pump gears so it was fine for me... :) but I removed the aftermarket crank pulley after a couple of months as the benefit gained is not worth the risk.....

as i suspected, it causes unwanted vibration. it was wise of u to remove it sir

 

[har1th7]

for crank pulley... its base on the usage...

for NA car - can be used to free up some extra rev
for Force Induction - not so much power gain compare to piping , downpipe, & IC upgrade...

since ur car is 3sgte.... u won't feel significant power gain, maybe later feel frustrated...

and the material use for the crank pulley... choose wisely, aluminium is lightweight but fragile... unless its an aluminium alloy ..

 

[3zz]

for lightweight pulley,make sure its dampened..
if x patah cracnkshaft..
but how to identify the crankply if dampned or x?
question n ans in 1.LOL

 

[ericgtmythos]

unbalanced crank pulley causes alot of 2zzge engine to go kaput..... the first thing to go is the oil pump gear.... will shatter to pieces and if the car is not stopped immediately, engine kaput.....

I've got aftermarket oil pump gears so it was fine for me... :) but I removed the aftermarket crank pulley after a couple of months as the benefit gained is not worth the risk.....

Bro Bar, Thanks for the good experience sharing:proud:..

---------- Post added at 01:19 PM ---------- 6 hour anti-bump limit - Previous post was at 11:59 AM ----------

my bad

anyways we can share cam pulley experience as well...

Haha Bro Zeus....
Anyway,my CAM pully use TODA old model...come with engine i bought..
See photo attach..




---------- Post added at 01:22 PM ---------- 6 hour anti-bump limit - Previous post was at 01:19 PM ----------

Dear All Sifu.....

Finally i decided use back the ori Crank Pully to prevent any risk or side effect to my new rebuilt engine....

Thank u very much for your kind advice & appreciated !!!:top::top:

 

[Barbarian]

you owe us a teh tarik....

 

[xtremeleo]

you owe us a teh tarik....

kopi o suam kaw2 kurang manis for me please, 2 glass k, hehe..

 

[ZenGTMM]

Hi there, newbie here too, tumpang thread..
Just want to ask if like say using an undampened crank pulley will cause problem, however I have tried to find dampened crank pulley and the closest I have came across is just Mytheology dampened crank pulley which I have read that its just a play of words and not really dampened as claim. Any ideas which brand carries dampened crank pulley for SP4H?

AFAIK, a dampened crank pulley is really really needed for high performance engine when the torque created on the piston pushing down on the crankshaft causes harmonics and when it reaches resonance state it will cause maximum damage. Will that possibly happen on a NA 1.6 Campro engine?

 

[ericgtmythos]

Haha..Bro Bar & xtremeleo... no problem the Teh Tarik or Kopi "O"... Hopefully really have opportunity to meet u all in future... Cheers..:cheers::cheers: