Anyone running the Crane duals?
i've had them on the wife's car for about 4 months now. drives it everyday. also had the VHP/Crane 1.89 accelerated lift rocker kit installed at the same time. so, they are getting used pretty good.
will be adding VHP heads to her car in about 2 months. we will be doing a spring test to see if there is any drop in pressure. this will answer some questions out there about durability and longevity.
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Joined: Jun 2002
Posts: 1,884
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From: H-town
i also bought and installed them but i used the steel retainers instead. i really wanted the comp duals but they were way to expensive for my blood. so far, shifting out at 7K with a .605 lift cam, driveing to work 5 days a week, cruzing on the weekends (street racing sometimes), going out of town every now and then (with no overdrive, 3.73s, and 80 mph that equals 4,000 rpms the whole way) i have not experienced any problems yet.
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A friend of mine just broke his crane duals after 6k on only a .591 lift. After the fact people started saying he should have shimed to being the seat pressure up, and that valve float caused the spring to break. The car was always warmed up first - and since the car was being daily driven at the time, the spring broke at low - mid rpms.
TECH Senior Member
Joined: Apr 2004
Posts: 6,157
Likes: 1
From: Texas
Originally Posted by WS666
I passed 10K with my T-Rex already on the cranes, and Thunder said we shouldnt have a problem gettin 25K out of them.
Originally Posted by 2MuchRiceMakesMeSick
Wow thats alot, What temps is everyone warming their springs up to?
Here is the post where Jason said the springs should last 20-25K minimum.......
https://ls1tech.com/forums/showpost....3&postcount=18
Originally Posted by JDPZ28
broke 2 of mine after only 12k miles on them with a fm13.
EDIT: Nevermind... the smaller base circle has nothing to do with the spring seat pressure. Brain Fart.
