Need a stronger spring to cure valve float but that can be used w/ stock lifters
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Need a stronger spring to cure valve float but that can be used w/ stock lifters
I'm getting valve float with my Comp 987 and YT rocker combo, and am looking to switch it up with something stronger. I'd like to reuse my stock lifters though, and not pay out the ***. I may switch to a G5X-2 cam in the near future, so they must be able to handle .610 lift and the extra weight of the Yella Terra.
I was looking into three spring types.
One was the Comp 977 because I can just swap the springs and retainers, but I saw that Damian felt these would collapse my stock lifters. I would have them setup at 1.875"-1.900" pocket height.
Also looking at the Comp 921 springs, but these bastards are expensive as hell!! Over $500 for the whole kit.
Lastly, I eyed the Crane 144832 double springs because the whole kit is only $380 for everything, and are supposedly as good as the Comp 921's.
Anyone have any other suggestions? Will my choices work with comp lifters?
I was looking into three spring types.
One was the Comp 977 because I can just swap the springs and retainers, but I saw that Damian felt these would collapse my stock lifters. I would have them setup at 1.875"-1.900" pocket height.
Also looking at the Comp 921 springs, but these bastards are expensive as hell!! Over $500 for the whole kit.
Lastly, I eyed the Crane 144832 double springs because the whole kit is only $380 for everything, and are supposedly as good as the Comp 921's.
Anyone have any other suggestions? Will my choices work with comp lifters?
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I'd go with the new stock diameter patriot "gold" dual springs. Terry has them at a hell of a deal with Ti retainers. I'm running them with my TSP231/237 with no problems.. also using YT's and stock lifters.
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Originally Posted by gomer
I'd go with the new stock diameter patriot "gold" dual springs. Terry has them at a hell of a deal with Ti retainers. I'm running them with my TSP231/237 with no problems.. also using YT's and stock lifters.
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Originally Posted by Cstraub
Just put a set of restrictor pushrods in the engine. Ed Curtis at Flowtech developed these 3 years ago and I had them made for him.. cures the valve float in the 5.0's and you can run some spring pressure.
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A pushrod on one end is die formed solid so there is no hole. Then with an EDM machine an orfice of .030" is drilled into the pushrod. Normal is .080" The EDM end is now put towards the lifter. By restricting the oil flow, this maintains the needed oil pressure on the top side of the plunger in the lifter. Hense the lifter can't PUMP UP. Ed's .500" lift stockers have successfully spun to 8000 rpm in the 5.0 realm. Cost is around $160.
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I run the REV dual springs with titanium retainers with my G5X2 and I have no problems with valve float and I haven't collapsed any of my stock lifters. I got the springs with the cam from LGM.
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Originally Posted by gomer
For the springs, spring seats, ti retainers, and valve seals it is $295
#13
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Originally Posted by 94form2000z
Hmm why the new valve seals.. wander if it is cheaper without them.
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Man, great price on the Patriot drop in gold springs that GOMER is running. IF those prove to be as good as they are touted to and prove themselves over the long haul to be satisifactory battled tested (street and strip), then those springs for that price seem to be the way to go and hopefully turn out to be the cat *** drop in springs for high lift Lsx motors!!!
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Originally Posted by BlackWS602
I would look into Comp 921's
I don't feel comfortable with the patriot springs as I don't see much of a history behind the product, but I would really like to hear more about these pushrods. The comp 921's do sound nice and I could probably transfer them to any head I have.
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Yes I have made some for the LS1's. Now for who, I have no idea. They were a referral from another cam company but I think I referred the individual to Ed at Flowtech. He may remember. I have done some for the marine industry with the same results, able to maintain a constant of 5000 to 5500 rpm without the float.
Chris
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My float isn't occuring until about 6500rpms...and it happens from 6500-7000rpms. Will the pushrods only help float up to a certain extent or will it cure it completely? I also am wondering if these pushrods will end up putting more strain on the spring, possibly causing it to break.