Finally got to drive the car around the block after full Clutch system upgrade. (Zpeed CMACK, EZ street Clutch and LW FW, RJM Pedal with Tilton MC) I did a
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04-29-2023, 11:13 AM | #1 (permalink) |
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Just want to confirm.
Finally got to drive the car around the block after full Clutch system upgrade. (Zpeed CMACK, EZ street Clutch and LW FW, RJM Pedal with Tilton MC)
I did a search and read a few posts about the Lightweight flywheel and noise. I get almost no noise or chattering at Idle in Neutral. Sounds normal. However, when I drive, it sounds like GRINDING METAL. I did nothing spirited, didn't even get past 3rd gear. I read the comments about sounding like a F250 Diesel, or bunch of rattle cans. Seems to be what I'm experiencing. Transmission shifts ok. No notches or gear grinding. The RJM pedal is a bit stiff (almost like stock) buy I'll let Clutch and whole system break-in before I adjust it. One thing I forgot to do, is top up the Transmission fluid. I lost about 1/2 a cup when I did the CMACK, due to those sealed bolts on Transmission input shaft cover. I don't think that little Fluid loss would cause that grinding. ( REdline MT-85 currently) So this noise is normal? |
04-29-2023, 11:26 AM | #2 (permalink) |
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If I give any substantial throttle below ~1500-2000rpm, it makes a noticeable metal grinding noise. Sounds like sh*t tbh.
After ~2500rpm, no chatter at all! I think what you’re hearing is normal. Sent from my iPhone using Tapatalk
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04-29-2023, 12:05 PM | #3 (permalink) |
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What you are hearing is normal sound from single mass flywheel on a VQ37VHR. I thought the same when I first drove my car after doing the same mods as you did but Zspeed told me it's normal and indeed it is.
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04-29-2023, 12:05 PM | #4 (permalink) | |
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I noticed in your signature you have a Z1 FW. I am assuming that is also a lightweight. However, is it Aluminum or steel? |
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04-29-2023, 12:18 PM | #5 (permalink) | |
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I’m not sure if I have the lightweight (14lb) or mid weight (21lb). Previous owner installed it. Both Z1’s offerings are 4140 steel Sent from my iPhone using Tapatalk
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04-29-2023, 12:22 PM | #6 (permalink) |
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I dont know exactly whats in my car but at idle it sounds like a diesel and low rpm accelerating pretty bad noise. I was told its a custom clutchmaster stage 3 but no idea the flywheel so its probably normal.
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05-20-2024, 03:35 PM | #8 (permalink) |
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Holly crap on a stick man, I just come back after changing my clutch and flywheel, (still initial break in, did 120 mile) I had heard the comments but did not expect it to be that bad. The trans mount probably did not help. Put in the following parts:
clutch feel and take-up is really nice, but the noise and vibrations. Did not go past 4000 RPM but it's buzzy for sure |
05-20-2024, 07:12 PM | #9 (permalink) | |
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05-21-2024, 07:21 AM | #11 (permalink) |
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Yeah unless you're building a race car there is no need to go solid mounts.
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05-21-2024, 09:31 AM | #12 (permalink) | |
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I have no clutch chatter at idle or any rpm range since I also opted for the "quiet-disk" setup. I'm close to finishing my clutch break with about another 100 miles to go. The issue/complaint I have is that my FP is very low and I can't adjust lower than 100%, otherwise I can't get into gear. I contacted RJM and he said I may still have air in my system
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05-21-2024, 10:41 AM | #13 (permalink) | |
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Quote:
https://www.princessauto.com/en/pneu...t/PA0009121187 you might be able to get the tool loaned or Harbor Freight sells something similar |
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05-21-2024, 03:20 PM | #14 (permalink) | |
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Quote:
My pedal is very consistent and return feel. Clutch grabs fine and going into all gears is fine also. Its just my FP is very low and not being able to adjust the RJ pedal. I though air would cause some inconsistency or something. I confirmed with Joe on the CMAK that I'm getting the correct amount of fork movement.
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