Fidenza flywheel worth it???
#42
Originally Posted by ryand.white
Thanks for the clutch depot link. I'm a big fan of getting a good deal. I looked around and those prices have been the cheapest I've found.
Glad I could help...
-Tony
#43
I like my fidanza flyweel. No real driveability issues, although I have stalled my car twice as much with the lightend flywheel. Once with the stock flywheel and twice with the lightend one.....
#44
Originally Posted by Stephen Max
Is the E36 BMW's inline 6? If so that explains a lot why it needs a harmonic damper. The longer a shaft is, the lower the natural frequencies, and an inline six has a significantly longer crankshaft than a V6. Apparently the I6 is long enough so that it has natural frequencies in the operating rpm range of the engine, hence the need for a damper. The VQ's natural frequencies are high enough not to be a problem, so Nissan doesn't equip them with a harmonic damper in the first place. If anything, a lightened UDP and/or flywheel will drive the natural frequencies even higher out of the operating range.
Now why doesn't Nissan sell the VQ with a lighter flywheel? A heavy flywheel absorbs energy from firing pulses, so an engine with a heavy flywheel will feel smoother. It also makes shifting smoother since there is less of an rpm change during shifts, and a heavy flywheel resists engine bogging during clutch engagement during a standing start. Since the Maxima is essentially Nissan's luxury sedan, they engineered it for smooth running rather than a .2 second faster quarter mile.
Now why doesn't Nissan sell the VQ with a lighter flywheel? A heavy flywheel absorbs energy from firing pulses, so an engine with a heavy flywheel will feel smoother. It also makes shifting smoother since there is less of an rpm change during shifts, and a heavy flywheel resists engine bogging during clutch engagement during a standing start. Since the Maxima is essentially Nissan's luxury sedan, they engineered it for smooth running rather than a .2 second faster quarter mile.
#45
Originally Posted by Jeff92se
diff clutch pressure plates like the ACT, that is noticably heavier also. But no one talks about that.
#46
The Fidanza flywheel is worth it. I changed from stock when I did the clutch at 85K and I am VERY satisfied. I have the OEM clutch and it does work well in almost all conditions BUT it slips when racing! I was neck and neck with a BMW Z3M until 3rd gear when the clutch slipped. If you want good drivability and comfort the stock clutch and Fidanza VQ work, but if you are a stoplight racer get an aftermarket clutch.
#47
Originally Posted by bsetiawan
Jeff, do you happen to know the weight difference of the ACT and the OEM pressure plate ? I think I'm now convinced that the less rotating mass affect the firing pulses. That's what causes the engine to be not as smooth.
#48
Originally Posted by Wrightsfd
The Fidanza flywheel is worth it. I changed from stock when I did the clutch at 85K and I am VERY satisfied. I have the OEM clutch and it does work well in almost all conditions BUT it slips when racing! I was neck and neck with a BMW Z3M until 3rd gear when the clutch slipped. If you want good drivability and comfort the stock clutch and Fidanza VQ work, but if you are a stoplight racer get an aftermarket clutch.
Dave
#50
Originally Posted by Wrightsfd
The Fidanza flywheel is worth it. I changed from stock when I did the clutch at 85K and I am VERY satisfied. I have the OEM clutch and it does work well in almost all conditions BUT it slips when racing! I was neck and neck with a BMW Z3M until 3rd gear when the clutch slipped. If you want good drivability and comfort the stock clutch and Fidanza VQ work, but if you are a stoplight racer get an aftermarket clutch.
I have put over 50 1/4 mile passes on my findanza flywheel and OE clutch with no slippage. I don't think your problem is the clutch and flywheel combo.
#51
Originally Posted by infinitiblast
Dave.........do you think it would make a difference if both weight losses on either side of the engine where the same?> I mean like if you loose 4lbs on the flywheel loose 4 lbs on the pulley.
Maybe I'll just remove my UDP and order the flywheel from Jeff Mike, did you get any increase in engine vibration with the flywheel?
Dave
#52
I'm also confused as to why the crank pulley is referred to as a dampener in the Chilton manual...
http://www.cybrrpartspro.com/Chilton...61CH03_14.HTML
http://www.cybrrpartspro.com/Chilton...61CH03_14.HTML
#53
Originally Posted by Dave B
I'm guessing no. I think you'll still get the same kind of vibration. With the reduced intertial weight, the VQ will just be a little more prone to bogging and stalling if you're not careful.
Maybe I'll just remove my UDP and order the flywheel from Jeff Mike, did you get any increase in engine vibration with the flywheel?
Dave
Maybe I'll just remove my UDP and order the flywheel from Jeff Mike, did you get any increase in engine vibration with the flywheel?
Dave
#54
ok speaking about clutches ly wheels and stages...in the near future i am going to go lightened flywheel with either a 75 or 100 shot . now my question is what stage clutch is better for is I or II. the max is a daily driver and i dont want chatter or harsh engagement. but i want the clutch to be able to hold the power.
#56
Originally Posted by araffio
I have a Spec Kevlar clutch with Fidanza flywheel and its very smooth. I dont have anything to compare the flywheel too though because I was auto prior to this set up. Car revs extremely fast though, thats for sure.
-Tony
-Tony
Ant
#57
Originally Posted by bsetiawan
Thank you for the excellent answer. That's what I'm curious about.
#59
i've been using the Unorthodox UDP for almost 2 years and running Royal Purple oil for about 1.5 yrs on my 5spd2001. the VQ30 is still as smooth as it was on the first day i drove it out the dealer. the VQ30 still continues to impress me on its quietness and smoothness not to mention the ppl who says: DAM FOO I THOT UR CAR WAS OFF OR SUMTHIN... VQ30DE
#60
Originally Posted by infinitiblast
Who makes the spec kevlar clutch and how does it compare to the act and exedy.
Spec is the name of the manufacturer.....just like ACT makes ACT clutches and Exedy makes Exedy clutches.....Spec makes Spec clutches.
As far as I know, Spec is as good if not better than any other clutch on the market. Going by my experience thus far with the Kevlar, the smoothness is unsurpassed, far smoother than any ACT I've felt. The thing is STRONG as hell too...
-Tony
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