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VNT & Other Turbo Vehicles Help for VNT cars & other turbocharged vehicle technical section.

 
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post #1 of 13 Old 10-08-2019, 12:33 PM Thread Starter
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VNT clutch

whats the best VNT clutch out there, not for racing.
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post #2 of 13 Old 10-09-2019, 11:19 AM
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Re: VNT clutch

If you are looking for an OE replacement...

LUK was the manufacturer for the TBI cars and Sach's was the manufacturer for the Turbo Cars.

Right now I have a Mopar replacement in my car that has been in there for 25 years and that includes numerous 1/4 runs.
I have a Sach's clutch kit sitting in my closet waiting for the day I need to replace the one in the car. (Hoping that day never comes)
Do not know if it is still available Sach's #K70067-03.
The part # listed in the Sach's catalog is now K0066-07, they say it fits all turbo cars from 84-90.

https://aftermarket.zf.com/remotemed...pplication.pdf

Both are 9" clutch disc's, did they change the part #???

You cannot go wrong with either manufacturer, Sach's or LUK.

Just an FYI...
According to the FSM the VNT flywheel is a tapered surface and cannot be machined.

Jan
1990 Daytona Shelby VNT

40 Years ASE Certified (Retired)
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post #3 of 13 Old 10-09-2019, 12:19 PM
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Re: VNT clutch

do you need big spline or small spline

I think I still have some of the old cancer discs - turbo sizes - small spline , pre 89 material, used ones
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post #4 of 13 Old 10-10-2019, 08:02 AM Thread Starter
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Re: VNT clutch

Took the trany out and counted 18 splines that's the large one correct?
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post #5 of 13 Old 10-10-2019, 08:30 AM
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Re: VNT clutch

Quote:
Originally Posted by gunblue View Post
Took the trany out and counted 18 splines that's the large one correct?
It sounds funny but 18 splines is the small one found in 1990 on the VNT 568 - I have one in my car.
The 17 splines is the large one from 1991 onward - I have one of these as well

Drivetrain:Manual Transmission Guide

I personally use TU clutches TurbosUnleashed - TU Custom Performance Clutches and Accessories
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post #6 of 13 Old 10-10-2019, 08:37 AM Thread Starter
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Re: VNT clutch

I haven't taken the clutch off yet waiting to lift the eng but i thought i read somewhere that they could machine match the the taper, not possible?
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post #7 of 13 Old 10-10-2019, 09:17 AM
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Re: VNT clutch

Quote:
Originally Posted by gunblue View Post
I haven't taken the clutch off yet waiting to lift the eng but i thought i read somewhere that they could machine match the the taper, not possible?
This I do not know, IMO it is easier to just replace the flywheel.

Mopar #4471319

https://www.rockauto.com/en/catalog/...,flywheel,5348
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post #8 of 13 Old 10-10-2019, 09:30 AM
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Re: VNT clutch

If you purchase from Rockauto remember we have a 5% discount
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post #9 of 13 Old 10-10-2019, 09:34 AM
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Re: VNT clutch

He was asking about the flywheel.

VNT clutch-trans-turbo-flywheel-inspect-install.jpg
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post #10 of 13 Old 10-10-2019, 11:04 AM
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Re: VNT clutch

fwdperformace's or turbounleashed's 6-puck Stage II clutches are not bad for daily driving, worth while if your planing to keep the car long term
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post #11 of 13 Old 10-10-2019, 12:07 PM
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Re: VNT clutch

I have (KNOCK ON WOOD!!!) 25 years and 140,000 miles on my replacement clutch and the mileage does not tell the real story.
From 2012-2018 It took me 20-25 minutes to make a 4 mile trip get home everyday, traffic was always bumper to bumper and I was on/off the clutch 150 times in one trip.
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post #12 of 13 Old 11-09-2019, 07:53 PM Thread Starter
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Re: VNT clutch

Your left leg must look like a Clydesdale leg.
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post #13 of 13 Old 11-10-2019, 01:03 AM
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Re: VNT clutch

It's all in how you drive the clutch. Some people slip the snot out of it. You can drive in traffic every day and not lose a clutch. Heck I drove in L.A. traffic for a month without a working clutch at all when the slave cylinder broke off the firewall. I even parallel parked the car numerous times. I've seen an old lady burn the clutch out of a mudstain in 30 seconds. I prefer a "racier" clutch and only want to do the job once. So I get the lightest one that'll handle the most torque I can and never go back.
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