Anyone using the Manley duals?
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From: Waterloo, Ontario
Anyone using the "NEW" Drop in Manley duals? I'm just wondering if anyone is using the new Manley duals? On paper the specs look good at 140@1.8 and 380 open. Plus the price is about right, around $350 with Ti retainers. The only thing makes me wonder is the retainer is .050 which would put the spring at 1.85 on a stock head valve combo? So i guess u would then have to shim it to get the 140 on the seat? Just looking for "Brand Name" dual-I'm also looking at the PRC's and the PP's but are they not the same? Same specs etc and they look the same too? Also I have heard that some of the PP's have failed with a G5X3 cam-is this true? Apparantley there have been no comp 921 failures.
Last edited by eb02z06; Dec 15, 2004 at 08:38 AM.
Originally Posted by Vortech
I'm just wondering if anyone is using the new Manley duals? On paper the specs look good at 140@1.8 and 380 open. Plus the price is about right, around $350 with Ti retainers. The only thing makes me wonder is the retainer is .050 which would put the spring at 1.85 on a stock head valve combo? So i guess u would then have to shim it to get the 140 on the seat? Just looking for "Brand Name" dual-I'm also looking at the PRC's and the PP's but are they not the same? Same specs etc and they look the same too? Also I have heard that some of the PP's have failed with a G5X3 cam-is this true? Apparantley there have been no comp 921 failures.
Thread Starter
8 Second Club
iTrader: (18)
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From: Waterloo, Ontario
On the CF forum I have read Lou from LG quote that they have had the Patriot duals fail with the G5X3-that is why they upgrade every AFR head with the 921's.
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Originally Posted by Vortech
Why did u have to shim the Manley's-how much did u shim, what was the installed height and what am di u use them for-thanks!
Shimmed 30 thousandths I think.
I have no idea.
Used them for valve springs, they work good
On a serious note, they were recommended to me per Allan Futral for the Ron Jeremy cam (236/239 .600/.611 111+4)
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