valair 450hp clutch slipping - Dodge Cummins Diesel Forum
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post #1 of 19 (permalink) Old 05-30-2008, 12:47 AM Thread Starter
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valair 450hp clutch slipping

I just purchased a Valair 12.25x1.25 Organic/Feramic 450hp 900ft lb torque clutch and installed it myself last weekend, since then, I have put 120 easy miles on it since installed. Yesterday was the first day I started getting hard on it since it broke the 100 mile mark. the clutch spins and slips if i lug the truck in third and fourth as soon as it hits boost. This is making me VERY ANGRY since I just spent 600 bucks on a slipping clutch no better than the stock one, so far at least. am I doing something wrong or what can I do to make this stop? it doesnt slip at all, then sometimes just out of the blue it spins


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post #2 of 19 (permalink) Old 05-30-2008, 04:14 AM
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off topic but dont feel so bad i just spent a lot of money on my rebuilt tranny..no warranty by the way ITS WORSE NOW THEN WHEN I TOOK IT IN BEARINGS SOUND LIKE THEY HAVE 500,000 MILES ON THEM AND IT WONT GO INTO 3RD WHEN I DOWN SHIFT!!!!......WHAT THE F%CK!!!?????......IM BEYOND PISSED

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post #3 of 19 (permalink) Old 05-30-2008, 05:23 AM
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contact valair talk to dan. the break in period is at least 500 miles rowing the gears. My valair did slip once but i put 1000 miles on my clutch and jumped on it hard and slipped just a little called dan told him how i drove it. and said that was just cause i took it really easy.

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post #4 of 19 (permalink) Old 05-30-2008, 09:15 AM
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100 miles, you need to break it in a bit more before starting aggressive driving. and i see you truck is a 12V, did you resurface the flywheel and check the center bore of the flywheel for clearence, the 12V had a 6.875 inch bore and that clutch requires a 7".

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post #5 of 19 (permalink) Old 05-30-2008, 04:27 PM Thread Starter
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yeah, I had the flywheel re-surfaced and the center bored out as well. How long should I drive on it before I get hard on it? its so tempting not to.How can I contact Dan?

Fattie 04.5 qcsb 64 over s475, Flux 3's, full billet trans, ARP 425's, AD165, 35's, Thuren goodies, stock cp3, best 12.6 1/4 mile w/6" lift and 37's.
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post #6 of 19 (permalink) Old 05-30-2008, 04:29 PM
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call me at the office 940-327-0682
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post #7 of 19 (permalink) Old 05-30-2008, 04:29 PM
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Quote:
Originally Posted by Valair1 View Post
100 miles, you need to break it in a bit more before starting aggressive driving. and i see you truck is a 12V, did you resurface the flywheel and check the center bore of the flywheel for clearence, the 12V had a 6.875 inch bore and that clutch requires a 7".
That is Dan! :thumbsup

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post #8 of 19 (permalink) Old 05-30-2008, 04:34 PM
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yep, Valair1 is Dan
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post #9 of 19 (permalink) Old 05-30-2008, 04:41 PM
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the feramic materials tend to take the longest to seat in, be paitient once it seats in, the slipping will quit, if you don't have time to call me during the day, you can reach me on my cell at 940-859-1496 anytime.
Dan
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post #10 of 19 (permalink) Old 05-30-2008, 06:23 PM Thread Starter
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Just got off the phone with Dan! Real good guy. Told me what I needed to do and now I have it all straightened out! Thanks Dan!

Fattie 04.5 qcsb 64 over s475, Flux 3's, full billet trans, ARP 425's, AD165, 35's, Thuren goodies, stock cp3, best 12.6 1/4 mile w/6" lift and 37's.
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post #11 of 19 (permalink) Old 05-30-2008, 07:01 PM
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post #12 of 19 (permalink) Old 05-30-2008, 07:32 PM
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Even though we sell a different brand, it is most common to seat the clutch taking as long as 1,000 miles. The harder the material the longer that period will be. you will feel it when the clutch is ready for a good beating.
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