How big a cam w/ 918's

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Jan 16, 2006 | 11:36 PM

Dmoney

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From: laredo,tx

How big a cam w/ 918's

I got a friend who is gonna run a 228/232, .585/.595 114 w/ LS6 heads. Do you think running 918 valve springs is a good idea?

Jan 16, 2006 | 11:37 PM

Lithium

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Should be fine. Kinda pushing it IMO.

Jan 16, 2006 | 11:39 PM

PREDATOR-Z

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From: BFE

918's will be plenty.

Jan 16, 2006 | 11:40 PM

orangeapeel

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From: Justin, TX

I run 918's on bigger. no problems.

Jan 16, 2006 | 11:41 PM

SouthFL.02.SS

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From: Miami

Yes sir. Although 2 years ago, everyone on here would have said otherwise. 4 years ago, people ran from 918s. Goes to show how things change.

Jan 16, 2006 | 11:41 PM

Lithium

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Damn lol. Nevermind then.

Jan 16, 2006 | 11:48 PM

Dmoney

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From: laredo,tx

I was just being cautious, cuz I dropped a valve with a 918 back in the day.

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Jan 16, 2006 | 11:51 PM

SouthFL.02.SS

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From: Miami

Correct, back in the day, 918's had a bad batch.

Patriot Gold duals or PRC duals are a good budget dual spring option, for added sense of security.

Jan 16, 2006 | 11:53 PM

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orangeapeel

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From: Justin, TX

And that is what I will be doing soon.

Jan 17, 2006 | 04:59 AM

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Greg_E

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From: CT

I don't know if people are using the 918's with the XER lobes with success, but would like to know, seeing as I am installing the 224/224 .581/.581 114 XER and the heads currently have the 918's installed.

Last edited by Greg_E; Jan 17, 2006 at 07:41 PM. Reason: deleted incorrect information Re: suitability of 26918's with XE-R lobes

Jan 17, 2006 | 05:09 AM

#12

orangeapeel

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From: Justin, TX

I know that people are using them on the XER lobes. I think most people though do switch eventually to a dual spring in the end though. Mine are XE.

Jan 17, 2006 | 05:11 AM

#13

PREDATOR-Z

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From: BFE

Really???
That is ammazing, because that is exactly what they recommend and 921's as an upgrade.

I've personaly run .610 lift on 918's with no issues, quite the contrary, more power, when I swapped the stock valves/duals for LS6 valves/ 918's on the same head,
11 rwhp extra on the same day.

Jan 17, 2006 | 07:21 AM

#14

slow trap

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From: tennessee

i have the 918s on a cc 228/228 on xer lobes and had no issues. they are rated for a "conservative" .600 lift.the 918s will be fine.

Jan 17, 2006 | 07:33 AM

#15

SideStep

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Installed correctly they will have no problem at that lift with XE-R profiles....

Jan 17, 2006 | 08:29 AM

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Red99TA

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From: Topeka, KS

.603" lift here and no problems after 8K daily driven miles

Jan 17, 2006 | 10:18 AM

#17

jerflash

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From: long island, ny

what would be an adverage hp diff between 918s and say prc golds?

i have the prcs on stock heads right now with a f13 595/585 and i know there lobe is pretty agressive

i like the added security but im wondering how much i could gain form going lighter

i will be getting some headsthis spring

Jan 17, 2006 | 10:18 AM

#18

jerflash

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From: long island, ny

Jan 17, 2006 | 11:26 AM

#19

Ryan02SS

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I would at least shim them for a little more pressure when running them at close to their max lift. A few months back a Tech from Comp posted as to how this was accomplished and results earned. It was pretty cool. Searching should find it easily.