I WOULD LIKE TO KNOW THE ANSWER TO THIS B/C I HAVE HEARD PEOPLE SAY THAT A LIGHTWEIGHT FLYWHEEL ON A TURBO CAR IS NOT REALLY A GOOD IDEA B/C WHEN YOU GO TO SHIFT THE GEARS IT COULD BOG DOWN AND STALL THE ENGINE. I HAVE ALSO HEARD THAT IT IS OK AT THE SAME TIME, SO WHAT I WOULD LIKE TO KNOW IS WHAT SOME OF YOU THINK.

PLEASE JUST THE PEOPLE THAT HAVE THIS SETUP OR HAVE DRIVEN A CAR WITH THAT SETUP ANSWER THIS ?, NOT HEAR SAY, I WANT FIRST HAND KNOWLEDGE ON THIS THANK YOU.

 

I never had a problem with mine.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rmcdaniels &raquo;</TD></TR><TR><TD CLASS="quote">I never had a problem with mine.</TD></TR></TABLE> I would try to stay with 8lbs or heavier, I have a 12lbs ACT.

 

me neither, i have an 8# flywheel and if i let off the gas and push in the clutch it'll stall sometimes but then i just pop it into gear and let the clutch out and it starts right back up

 

ultra light and hade no prob

 

bump i would also like to know

 

i have a 12lb act flywheel and act stage 2 clutch running 7lbs on a d16z6 turbo w/ a shitty dx tranny and ive had no problems at all

but then again i dont think you can feel a differance using a dx tranny

 

I like my 8.5lbs flywheel because 9500rpm comes fast as hell. But at times the rpm's drop a lil fast also.

 

In my honest opinion, I like a flywheel around the 12-15lb area. More that that is just too much reciprocating mass.

Below that and the revs just drop too damn fast for my liking, it kinda makes it a bitch to daily drive. Never stalled, it just made some jerky shifts sometimes cause the revs would drop so fast.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike1114 &raquo;</TD></TR><TR><TD CLASS="quote">In my honest opinion, I like a flywheel around the 12-15lb area. More that that is just too much reciprocating mass.

</TD></TR></TABLE>

It's rotating, not reciprocating

At any rate, I enjoyed the 7.8 lb flywheel in my turbo car. I went from a stock ITR flywheel to the 7.8 and never looked back.

 

So the some of you people's cars turn off after shifting because of a lightweight flywheel? Damn, that sucks, you guys think it'll happen with a 8.36 lb flywheel? I'm running a y8 with stock internals, looking towards a greddy or homemade turbo setup.

 

mine does every so often but i have learned to drive so it wont, IMO the lighter the better

 

i have a 7LB on my z6 w no problems or stalling
jus shift faster
-mike

 

Just installed a Fidanza on my turbo DA and have yet to experience any negative side effects. I find the car more enjoyable to drive.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Soccerking3000 &raquo;</TD></TR><TR><TD CLASS="quote">me neither, i have an 8# flywheel and if i let off the gas and push in the clutch it'll stall sometimes but then i just pop it into gear and let the clutch out and it starts right back up</TD></TR></TABLE>

Mine does the same thing. I'm running a tilton twin disc setup which is really light .

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tabbob7681 &raquo;</TD></TR><TR><TD CLASS="quote">I WOULD LIKE TO KNOW THE ANSWER TO THIS B/C I HAVE HEARD PEOPLE SAY THAT A LIGHTWEIGHT FLYWHEEL ON A TURBO CAR IS NOT REALLY A GOOD IDEA B/C WHEN YOU GO TO SHIFT THE GEARS IT COULD BOG DOWN AND STALL THE ENGINE. I HAVE ALSO HEARD THAT IT IS OK AT THE SAME TIME, SO WHAT I WOULD LIKE TO KNOW IS WHAT SOME OF YOU THINK.

PLEASE JUST THE PEOPLE THAT HAVE THIS SETUP OR HAVE DRIVEN A CAR WITH THAT SETUP ANSWER THIS ?, NOT HEAR SAY, I WANT FIRST HAND KNOWLEDGE ON THIS THANK YOU.</TD></TR></TABLE>


I would say just don't go too low. I would say no lower than 12lbs. But thats just me. good luck.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tabbob7681 &raquo;</TD></TR><TR><TD CLASS="quote">I WOULD LIKE TO KNOW THE ANSWER TO THIS B/C I HAVE HEARD PEOPLE SAY THAT A LIGHTWEIGHT FLYWHEEL ON A TURBO CAR IS NOT REALLY A GOOD IDEA B/C WHEN YOU GO TO SHIFT THE GEARS IT COULD BOG DOWN AND STALL THE ENGINE. I HAVE ALSO HEARD THAT IT IS OK AT THE SAME TIME, SO WHAT I WOULD LIKE TO KNOW IS WHAT SOME OF YOU THINK.

PLEASE JUST THE PEOPLE THAT HAVE THIS SETUP OR HAVE DRIVEN A CAR WITH THAT SETUP ANSWER THIS ?, NOT HEAR SAY, I WANT FIRST HAND KNOWLEDGE ON THIS THANK YOU.</TD></TR></TABLE>

it really depends on how fast your turbo spools....i have a sc50 .48 ar exhuast on my d16z6 and I installed a 8.5 lbs ACT flywheel at the time of my clutch upgrade and notice a lil slower in spool time but at the same time gaining traction and topend pull. SO...you guys with smaller turbos ripping tires through gears might like the feel of a lighter flywheel as it will slow your spool down a bit and also allow you to shift faster do to less rotating mass. But as I mention before lighter flywheel will reduce your turbo responce in between shifts... guys running larger turbos may want to stay away from this upgrade.

 

I dont have any problems with my exedy 9.6lb flywheel, my turbo isnt that big either plus its a BB

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TurboCoop &raquo;</TD></TR><TR><TD CLASS="quote">I dont have any problems with my exedy 9.6lb flywheel, my turbo isnt that big either plus its a BB</TD></TR></TABLE>


Yeah....like I said... faster spoling turbos will benifit from lighter flywheels as a lil boost lag (may not even feel it) will increase some traction.

 

My car made boost sooner with a ~8 lb flywheel (by 600 RPMs) according to my datalogs. This was on a Greddy 18G.

 

sorry to bring this back

but why does a light-weight flywheel make a turbo spool a little slower?

 

im amusing because of the load on the motor isnt as great??? correct me if im wrong.

 

Put the lightest flywheel you can find and use it...period.

 

heres the thread to your question:

https://honda-tech.com/zerothread?id=2262491


hopefully "Legion" will come in this thread and explain how turbos and light flywheels work