will 978's hold .595 lift fine?
#1
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will 978's hold .595 lift fine?
Im swapping my 987's since im getting some valve float i believe with this F11 228/230 .595/.595 114 cam
I just wanted to make sure they would ok without a doubt for this cam and street/track... well 75% street use now
Reason i like these is that they only cost 110ish.. i wouldnt mind the TEA gold spring kit, but thats 250+(still cheap but im about broke).
which would you go with?? Spend the 100 more and get the golds or just get the 978's and slap on the heads?
I just wanted to make sure they would ok without a doubt for this cam and street/track... well 75% street use now
Reason i like these is that they only cost 110ish.. i wouldnt mind the TEA gold spring kit, but thats 250+(still cheap but im about broke).
which would you go with?? Spend the 100 more and get the golds or just get the 978's and slap on the heads?
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and thats why im wondering if I should just spend the extra and get the golds that hold .650lift easy
someone give me 200bucks and ill pitch in the other 50-80 for the golds
someone give me 200bucks and ill pitch in the other 50-80 for the golds
#4
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I was just on Comps web site the 987's are 1.150" coil bind .045" less than the 978's. If your install height is 1.800 the 978's won't fit. You better check with a valve spring micrometer. Call Terry at Racetech he can sell you a PRC kit with a .660" max reasonably. He is a sponsor.
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Check your setup really close if you stay with those 978s. We've got both the PRC Gold & PRC Platinum spring kits in stock & on special!! I prefer the new platinum package, it has a different retainer configuration that gives you better pressures without the need to shim the springs up.
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994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
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His springs have already been shimmed to 1.780 so there is no need to check Install height.
Do not believe the specs for coil bind on Comps web site. They coil bind less than comp advertises.We typically see them CB around 1.080" or less with the 978. If you do go the 978 route I will personally meassure coil bind on each spring to make sure you are good to go.
Thanks Brent
BTW like always we will beat any advertised price.
Do not believe the specs for coil bind on Comps web site. They coil bind less than comp advertises.We typically see them CB around 1.080" or less with the 978. If you do go the 978 route I will personally meassure coil bind on each spring to make sure you are good to go.
Thanks Brent
BTW like always we will beat any advertised price.
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Originally Posted by CHRISPY
With the alternatives available, I wouldnt use them. That is just my preference though
#11
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Hey Brent I figured that Comp was conservative on their coil bind specs, to keep people from pushing the envelope. Well coil bind on my 978's was right around 1.185"-1.190", not significantly less than Comps 1.195". I had to go with special retainers Terry at Racetech made for me, to an install height of 1.855"-1.860". Anyone using 978's without measuring is asking for trouble.
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well 978's are pretty much outta the question now then.. im getting the idea that PRC's or the TEA's would be the safer bet now.
Thanks everyone.. now someone just give me some cash to order them with
Thanks everyone.. now someone just give me some cash to order them with
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Originally Posted by bigdsz
Hey Brent I figured that Comp was conservative on their coil bind specs, to keep people from pushing the envelope. Well coil bind on my 978's was right around 1.185"-1.190", not significantly less than Comps 1.195". I had to go with special retainers Terry at Racetech made for me, to an install height of 1.855"-1.860". Anyone using 978's without measuring is asking for trouble.
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Originally Posted by 98TAauto
well 978's are pretty much outta the question now then.. im getting the idea that PRC's or the TEA's would be the safer bet now.
Thanks everyone.. now someone just give me some cash to order them with
Thanks everyone.. now someone just give me some cash to order them with
Bruce