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Old 02-08-2018   #31
Jagdpanzer
 
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Default Re: Fidanza users

Are you using the same bellhousing? Could be it is introducing some misalignment which is putting side load on the input shaft bearing that is causing the noise you mentioned.


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Old 02-08-2018   #32
Flyman 27
 
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Default Re: Fidanza users

Mark installed the clutch asm as part of his "500" package so I am confident everything is to spec.
If I depress the clutch pedal to the floor a lot of the noise goes away. The trans is real noisy if I lug the engine down any at all, especially in the higher gears. Mid to high rpm's everything is fine.
Some guys don't mind the noise at all, but I like to listen to the exhaust most of the time. The noise drives me crazy, plus I really dislike having to explain to all I show the car to that it really isn't about to blow up, it's just clutch/flywheel noise....
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Old 02-08-2018   #33
XfireZ51
 
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Default Re: Fidanza users

I sort of think its fun to pull up to some ricer Subie or Mitsu or even a C6 with a car that sounds like its ready to blow up. And then...BAM! Talk about sleeper.
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Old 02-08-2018   #34
Flyman 27
 
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Default Re: Fidanza users

Quote:
Originally Posted by XfireZ51 View Post
I sort of think its fun to pull up to some ricer Subie or Mitsu or even a C6 with a car that sounds like its ready to blow up. And then...BAM! Talk about sleeper.
I had not thought of that, that's a good point.

My clutch works fine, it is just the noise that bothers me. It could very well mislead some unwitting victims of the beast!
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Old 02-08-2018   #35
XfireZ51
 
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Default Re: Fidanza users

Quote:
Originally Posted by Flyman 27 View Post
I had not thought of that, that's a good point.

My clutch works fine, it is just the noise that bothers me. It could very well mislead some unwitting victims of the beast!

Yeah who would ever suspect a POS C4 Corvette that sounds like a rattle can.

BTW, maybe once the snow clears out maybe we can take a listen to your ZR.
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Old 02-08-2018   #36
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Default Re: Fidanza users

While I miss the power... I parted ways with the Fidanza a year ago. The rattle drove me nuts. I put up with it for about 7 years. The unit I had pulled out was beat to hell. The ZF.Doc returned to stock and I haven't looked back since. Remember my 91 is my DD and my 90 is my Monday and maybe weekend driver only so the 91 has significantly more beating on it.


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91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat

90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat

11 RED/GREY CTS-V
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Old 02-08-2018   #37
GOLDCYLON
 
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Default Re: Fidanza users

Quote:
Originally Posted by Flyman 27 View Post
Mark installed the clutch asm as part of his "500" package so I am confident everything is to spec.
If I depress the clutch pedal to the floor a lot of the noise goes away. The trans is real noisy if I lug the engine down any at all, especially in the higher gears. Mid to high rpm's everything is fine.
Some guys don't mind the noise at all, but I like to listen to the exhaust most of the time. The noise drives me crazy, plus I really dislike having to explain to all I show the car to that it really isn't about to blow up, it's just clutch/flywheel noise....


Or the timing chains rattle upon start up for 3 seconds that sound like the engine is coming apart noise as another LT5ism. GC
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GOLDCYLON - 11 CTS-V


Arizona State Director




91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat

90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat

11 RED/GREY CTS-V
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Old 02-08-2018   #38
Ccmano
 
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Default Re: Fidanza users

Quote:
Originally Posted by Jagdpanzer View Post
Are you using the same bellhousing? Could be it is introducing some misalignment which is putting side load on the input shaft bearing that is causing the noise you mentioned.


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Same bellhousing. Checked the surfaces before reassembly and didn’t see anything. Checked the alignment of the trans and c-beam to the tunnel upon assembly with the measuring sticks provided by Bill B in the Beam Plate kit. While the measurements were not perfect they were very close. As you know once everything except the c-Beam is bolted together adjustment is very limited. I may go back and see if I can get those specs closer.
H
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Old 02-08-2018   #39
Jagdpanzer
 
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Default Re: Fidanza users

Next time you have the transmission out wouldn’t hurt to check the mounting flange bore and face runout with a dial indicator on both the transmission and bell housing.
A while back I was tracking down an unusual whining noise a ZF transmission was making in the lower gear ranges. This particular transmission came out of a wrecked ZR-1 that had 5K miles. Found one of the bolting ears on the main case to be slightly bent that introduced an angular misalignment on the input shaft which caused the input shaft bearing to whine. Machined the ear to correct the angular misalignment solved the whining noise problem.
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Last edited by Jagdpanzer; 02-08-2018 at 03:57 PM.
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Old 02-08-2018   #40
Vette73
 
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Default Re: Fidanza users

My question is has anybody went from a stock clutch disk to a sprung hub disc and noticed the difference in sound? I have a fidanza on my car now with all the stock clutch components....Noise is more prevalent in the low RPMS and of course if I'm lugging it around town...Getting used to the noise though , than again, its cold in the northeast....Driving with the Windows closed....Will see, when the top comes off and the Windows go down,I will see if I can tolerate it....

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