941s or 918s ???
Thread Starter
Joined: Nov 2001
Posts: 10,060
Likes: 33
From: Canton, GA
941s or 918s ??? I have proven 918s now, but have access to 941s also. Assuming they are not the "bad ones", would I be better off with the 941s, or keep the 918s for the following cam:
226/226 .591/.591 113
I have had the 918 for about 3000 miles with the T1 and another cam that was around .580 lift with no issues.
Thanks! <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
226/226 .591/.591 113
I have had the 918 for about 3000 miles with the T1 and another cam that was around .580 lift with no issues.
Thanks! <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
Staging Lane
Joined: Aug 2002
Posts: 65
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From: Wake Village, TX
Re: 941s or 918s ??? we use 941's at work with the 1.250" titanium retainers and have yet to have a valve spring break...its a bit more expensive to swap to the bigger titanium retainer but well worth it in my opinion...especially considering the amount of lift camshaft you have
<img border="0" alt="[Camaro]" title="" src="graemlins/camaro.gif" />
<img border="0" alt="[Camaro]" title="" src="graemlins/camaro.gif" />
TECH Junkie
Joined: Nov 2001
Posts: 3,987
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From: Melbourne, FL
Re: 941s or 918s ??? I used Comp 918's with that same cam (but mine was a 112lsa) with great results. I had 941's in the past, and always had valvefloat issues. The 918's seemed to be a much better designed spring, and work well with bigger cams/higher rpms. Short of switching to dual springs, I'd stay with the 918's.
JMHO....
JMHO....
TECH Veteran
Joined: Sep 2002
Posts: 4,469
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From: NW Houston
Re: 941s or 918s ??? Racefan, do you think having the titanium retainers make all the difference? I have a cam from Katech with the 941 springs and the titanium retainers, but I haven't been able to drive the car yet, due to the fact that I'm deployed to Kosovo. I just hope I'm not one of the unlucky ones. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
TECH Veteran
Joined: Sep 2002
Posts: 4,469
Likes: 3
From: NW Houston
Re: 941s or 918s ??? Racefan, do you think that having the titanium retainers makes all the difference? I have a cam from Katech with the 941 springs and the titanium retainers, but I haven't been able to drive the car yet, due to the fact that I'm deployed to Kosovo. I just hope I'm not one of the unlucky ones. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
<small>[ October 25, 2002, 04:22 AM: Message edited by: SSG--Z28 ]</small>
<small>[ October 25, 2002, 04:22 AM: Message edited by: SSG--Z28 ]</small>
Teching In
Joined: Jul 2002
Posts: 27
Likes: 0
From: Pearl City, HI
Re: 941s or 918s ??? What's up Todd, I have 918 springs in my car now because I broke one 941 spring. My cam lift is not really big (.532) but Bode is running these springs on his car also and his lift is bigger. So far no problems. He never changed it since he put it in and you know he's running 11's consistantly. Ill' be putting in a bigger cam soon with these same springs plus I think CompCams have fixed the bad batch problems. Angie posted about awhile back. Hope this helps.
See later bro, when you coming back to the islands?
Dan <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
See later bro, when you coming back to the islands?
Dan <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Thread Starter
Joined: Nov 2001
Posts: 10,060
Likes: 33
From: Canton, GA
Re: 941s or 918s ??? Man I miss Hawaii a bunch <img border="0" title="" alt="[Sad]" src="gr_sad.gif" /> If it weren't so darn expensive, I'd retire out there.
I have been using the 918s on my car for a while, and had no problems, but I think I am selling them with my BSM heads.
My friend had a set of almost new 941s with the tit retainers, so I grabbed them from him. I decided to go with the 941s vice the 918s based on some good logic from Alan at FMS (cam maker).
He said, "given the choice, I'd go with the 941s over the 918s. This way, if a spring does break, the inner damper will keep the vlave from falling into the piston in most cases. If you break a 918, there is nothing there to hold the valve up."
Made sense to me!
Todd
I have been using the 918s on my car for a while, and had no problems, but I think I am selling them with my BSM heads.
My friend had a set of almost new 941s with the tit retainers, so I grabbed them from him. I decided to go with the 941s vice the 918s based on some good logic from Alan at FMS (cam maker).
He said, "given the choice, I'd go with the 941s over the 918s. This way, if a spring does break, the inner damper will keep the vlave from falling into the piston in most cases. If you break a 918, there is nothing there to hold the valve up."
Made sense to me!
Todd
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Staging Lane
Joined: Aug 2002
Posts: 65
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From: Wake Village, TX
Re: 941s or 918s ??? the advanage isnt that they are tit. its that they are 1.250 dia....which means that you get rid of those beehive springs
<img border="0" alt="[Camaro]" title="" src="graemlins/camaro.gif" />
<img border="0" alt="[Camaro]" title="" src="graemlins/camaro.gif" />
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Re: 941s or 918s ??? FWIW
Katech had a bullient out that showed the 918's don't do as good a job controling the valve train at high rpm as the 941's do. Katech also stated the 918's have the most problems controllng the valve train at 6,400 rpm.
On Thunder Racings website, they list the new REV dual springs that will work without machining the heads.
I'd want dual springs with the big cam myself.
<small>[ October 26, 2002, 11:26 PM: Message edited by: 99 Black Bird T/A ]</small>
Katech had a bullient out that showed the 918's don't do as good a job controling the valve train at high rpm as the 941's do. Katech also stated the 918's have the most problems controllng the valve train at 6,400 rpm.
On Thunder Racings website, they list the new REV dual springs that will work without machining the heads.
I'd want dual springs with the big cam myself.
<small>[ October 26, 2002, 11:26 PM: Message edited by: 99 Black Bird T/A ]</small>
Teching In
Joined: Oct 2002
Posts: 23
Likes: 0
From: Katy/Houston Tx.
Re: 941s or 918s ??? I have broken 3 941 springs. I don't have good luck with them so I went dual. If it were me I wouldn't take that chance (especially with 591 lift)but some people are having good luck with them.