Author Topic: Better valve spring  (Read 3040 times)

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Offline grand camino

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Better valve spring
« on: April 02 2011, 11:21:06 AM »
I'm looking for options other than a comp 980. I posted at the buick site and most are ok with comps.  I read where comps can be, and are, inconsistant.  My 204/214 is 4 years old and quiet. i have always run good oil and ZDDP. I was thinking 100/105 seat pressure would be ok. I like the idea of a GM part, like an LT1 spring ,but now i hear they can sell knock-offs as well.  any suggestions appreciated.
aka"turbocamino" 87 GN motor,trans,rear,dash. TRW+30,balanced crank and rods,max port irons+intake,cometics,212/212-500,HS1.65,6265JB,alkycontrol,stevemon.62mm T/body,JRacing 044-external,TTchips,60Lb.Motrons,RazorAlky,PTC2800L/U, NGK-PLX,GYear ssDR,3"down and out,Airbags

Offline larrym

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Re: Better valve spring
« Reply #1 on: April 02 2011, 02:51:30 PM »
I'm not sayin a word after what happened last time I voiced my opinion....... .
86 white T type with t tops and blackout trim. 60lb injectors Gen 2 with Extender Chip TR6 ignition 212/206 roller cam Turbonetics BB CPT 61 CAS V4 Intercooler Cobbled together Alky Injection 4 inch MAF pipe with integral sensor
2800 stall lots of fun with a little 6 banger!
Best ET 11.36

Offline ULYCYC

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Re: Better valve spring
« Reply #2 on: April 02 2011, 04:59:38 PM »
What are you shifting the car at and what rpms do you cross the traps at? How many miles on the springs?
ED BAKER
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01 Park Ave Ultra S\'charged
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Offline grand camino

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Re: Better valve spring
« Reply #3 on: April 02 2011, 10:46:53 PM »
I'd like to see 5200 but it seems to go flat by 5000. The spring are 4years old.   I'm seeing  high 10's/low 11's on my wideband  during a blast and car runs great. zddp always as well.  Not a drag car...but i do beat up on my friends lightning and mustang now and then.  Kirbans springs seem like a decent choice, yes?
aka"turbocamino" 87 GN motor,trans,rear,dash. TRW+30,balanced crank and rods,max port irons+intake,cometics,212/212-500,HS1.65,6265JB,alkycontrol,stevemon.62mm T/body,JRacing 044-external,TTchips,60Lb.Motrons,RazorAlky,PTC2800L/U, NGK-PLX,GYear ssDR,3"down and out,Airbags

Offline Steve Wood

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Better valve spring
« Reply #4 on: April 03 2011, 12:30:17 AM »
Personally, I would stick with the 980s which should turn that cam easily past 5200.  I would rather do that than suddenly increase the pressure upward and take a chance on increasing the wear on a cam that has been in the car awhile and settled in...but that is just me
Steve Wood

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A lot of broken parts does not make you a racer; it makes you a slow learner.

Offline ULYCYC

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Re: Better valve spring
« Reply #5 on: April 03 2011, 06:54:40 AM »
Quote from: "grand camino @ Sat Apr 02, 2011 9:46 pm"
I'd like to see 5200 but it seems to go flat by 5000. The spring are 4years old.
ED BAKER
87-T, Maplight equipped rear view mirror..
01 Park Ave Ultra S\'charged
BPG#1458

 

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