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#1
11-22-2021, 12:25 PM
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Solid valve spring vers hydraulic
Can anyone explain whats the difference between solid vers hydraulic valve springs....got heads with a solid valve spring set up.. want to run a hydraulic cam now ..so is it possibble to run the solid springs if the hydraulic cam is similar to the solid cam....
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#2
11-22-2021, 12:28 PM
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Short Answer NO ! , you must know that actual spring seat closed pressure #'s and lift clearances. If you were referring to Hyd-Roller then that pressure is close to a Flat tappet Solid
__________________
63 Catalina coupe 455 budget drag car 11's 1/4 , 7.4 1/8th 66 Star Chief Executive 57k mile 69 Le Mans 2 dr HT 350 85k mile 15 sec 1/4 69 Firebird 400 Burgandy/Black 70 Olds Rallye 350 F85 4 speed 3.91's 70 Olds Cutlass Cruiser Red Wagon 350 101k miles 15 sec 1/4 12 sec w 455 74 Cheyenne Super C10 LWB Gen 6 454 w ZZ502 cam 3.07gear 13.1 1/4, 8.3 1/8 2020 RAM 1500 SLT 4x4 5.7 A8 Hemi 2007 Hummer H3 3.7 liter turd 2019 Chevy Spark petrol car 38 mpg |
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#3
11-22-2021, 12:28 PM
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Do you know the set up spec's on those spring the head is assembled with now?
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#4
11-22-2021, 01:05 PM
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Valve springs
Dont know about the spring spec... had to remove them and test the pressure rates....so i know what i got......since i dont have a mechanical cam in the moment only hydraulic in the garage .. ill think a change to hydraulic springs
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#5
11-22-2021, 01:18 PM
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"had to remove them and test the pressure rates....so i know what i got"
Curious, what were the results ? Presuming they were tested on a calibrated spring tester at their actual verified installed height with their retainers. .
__________________
'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 ) Old information here: http://www.hotrod.com/articles/0712p...tiac-trans-am/ Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine) 5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension https://www.youtube.com/watch?v=qDoJnIP3HgE |
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#6
11-22-2021, 01:38 PM
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Had to test them .....but must order a springtester before..but also not cheap..lol
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#7
11-22-2021, 02:05 PM
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What's the current installed height from spring seat/shim up to under retainers installed ?
__________________
63 Catalina coupe 455 budget drag car 11's 1/4 , 7.4 1/8th 66 Star Chief Executive 57k mile 69 Le Mans 2 dr HT 350 85k mile 15 sec 1/4 69 Firebird 400 Burgandy/Black 70 Olds Rallye 350 F85 4 speed 3.91's 70 Olds Cutlass Cruiser Red Wagon 350 101k miles 15 sec 1/4 12 sec w 455 74 Cheyenne Super C10 LWB Gen 6 454 w ZZ502 cam 3.07gear 13.1 1/4, 8.3 1/8 2020 RAM 1500 SLT 4x4 5.7 A8 Hemi 2007 Hummer H3 3.7 liter turd 2019 Chevy Spark petrol car 38 mpg |
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#8
11-22-2021, 03:01 PM
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kida putting the cart in front of the horse here....
1st have springs tested for seat pressure AT installed height...then coil bind height. THEN...you have something to work with....THEN spend money as needed... |
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#9
11-22-2021, 03:27 PM
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In my opinion use a bench type spring tester and not a 'on the head' type of tester. There can be a considerable difference in the results between the two types.
.
__________________
'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 ) Old information here: http://www.hotrod.com/articles/0712p...tiac-trans-am/ Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine) 5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension https://www.youtube.com/watch?v=qDoJnIP3HgE |
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