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10-20-2018, 02:20 PM
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#1 |
 
Drives: 14 ss camaro summit white Join Date: Oct 2014
Location: bay area
Posts: 463
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Need help choosing valve springs
Debating whether to go with pac springs or btr springs! I need some that would support the tsp4.2 vvt cam
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2014 ss camaro
Stainless works long tubes , rotofab cai , vararam wedge , muffler delete,cat delete ,resonator delete , x pipe 2019 sierra duramax 2500 all terrain x 2001 trans am Lsx 408 ci rebuild in progress(dead project) 1967 camaro Sbc 327. |
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10-20-2018, 03:42 PM
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#2 |
    
Drives: 2015 1LE Join Date: Oct 2015
Location: Cleveland, OH
Posts: 1,485
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Either would be fine, really depends on what spring you choose from either one. PAC makes a lot of springs. I would go with BTR springs, they have a great reputation.
Last edited by zz430camaro; 10-20-2018 at 03:55 PM. |
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10-21-2018, 08:19 AM
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#3 |
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old school chevy rodder
Drives: 2013 2SS/RS Manual,DM exhaust,CRT Join Date: Jul 2012
Location: Oregon
Posts: 5,588
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Springs need to be chosen to exceed the lift of the cam no matter what brand you do, they should exceed the maximum lift and not be in danger of valve float or overly hard on the valve train being too stiff if avoidable as stiffer also can be more brittle and less longevity in the racing world..... IMO stuff that's common knowledge, either should be fine and remember springs are limited use wear items...…..
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 2021 Wild Cherry ZL1 A10, Sunroof, Data, Carbon, Nav, RotoFab Dry CAI, Elite x2, Borla ATK, Driveshaft shop |
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10-21-2018, 12:24 PM
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#4 | |
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Drives: 14 ss camaro summit white Join Date: Oct 2014
Location: bay area
Posts: 463
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Quote:
So should i go with soemthing o. the max lift springs of 660? Should i play it safe? Or would the 650 max lift me fine
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2014 ss camaro
Stainless works long tubes , rotofab cai , vararam wedge , muffler delete,cat delete ,resonator delete , x pipe 2019 sierra duramax 2500 all terrain x 2001 trans am Lsx 408 ci rebuild in progress(dead project) 1967 camaro Sbc 327. |
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10-21-2018, 12:54 PM
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#5 | |
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Drives: 2015 1LE Join Date: Oct 2015
Location: Cleveland, OH
Posts: 1,485
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Quote:
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10-22-2018, 06:13 AM
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#6 | |
 
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Quote:
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1969 SS: SS/DA 427 CI/Auto
2011 SS-2 LS3 M6 MODS: P1X ProCharger, Squash dual fuel pumps, ID fuel injectors, Cam: Pat G designed/EPS Ground (228/234 .629”/.629” 114 LSA +4 advance), Lethal Racing ported throttle-body and intake manifold, Kooks 1 7/8” Long Tube Headers, Dynomax Bullet Cat-Back System, Skip Shift Eliminator  |
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10-22-2018, 07:11 AM
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#7 |
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old school chevy rodder
Drives: 2013 2SS/RS Manual,DM exhaust,CRT Join Date: Jul 2012
Location: Oregon
Posts: 5,588
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I would say 660.....some like to run real close to the springs ratings...not so safe....
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2021 Wild Cherry ZL1 A10, Sunroof, Data, Carbon, Nav, RotoFab Dry CAI, Elite x2, Borla ATK, Driveshaft shop |
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