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#1 |
Senior Member
![]() Join Date: Mar 2012
Location: Royston, Ga
Posts: 625
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Re: Pinging after 40-45 mins of driving?
If you haven't done this already, summit racing has a compression calculator you could try. As long as you know how many cc's, or close estimation, your Pistons add to the compression chamber and how many cc's your heads are, you can get a close estimation of compression.
http://www.summitracing.com/expertad...ion-calculator
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Evan - 1969 C10 LWB fltsd 307 3spd man.steer 3.73 rear orig.white/turquoise poly with drk turquoise int - 1972 Custom Deluxe10 LWB fltsd 350/TH350 pwr. steer/brks A/C 3.07posi rr orig.med blue with blue cloth trim. |
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#2 |
Senior Member
![]() Join Date: Dec 2013
Location: Gods country East,Tn
Posts: 8,545
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Re: Pinging after 40-45 mins of driving?
After all you've been thru with this engine I'll bet a donut that a crate 383 is looking really good right about now ?
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![]() 1967 Factory short bed - Old school '71 - 350 / 4bolt / 487 heads / Edelbrock C3BX Muncie M-22 4 speed / Hurst Comp plus Factory 12 bolt posi 3.73 / 255-70-15 Smoothed firewall / Factory cowl induction Power disc brakes / power steering / 3.5-5" drop |
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#3 |
Registered User
Join Date: Nov 2015
Location: Colfax California
Posts: 1,644
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Re: Pinging after 40-45 mins of driving?
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#4 |
Registered User
Join Date: Nov 2015
Location: Colfax California
Posts: 1,644
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Re: Pinging after 40-45 mins of driving?
Well I was off a little on the compression, so that might be part of it lol
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#5 |
Senior Member
![]() Join Date: Mar 2012
Location: Royston, Ga
Posts: 625
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Re: Pinging after 40-45 mins of driving?
Yea you definately need to run 4 to 5 gallons of race fuel per tank. According to the chart I looked at 11:1 compression needs atleast 96 octane and 12:1 needs
atleast 100 octane, so you should try to get between them. How much does it cost there? Costs me $10 a gallon at the pump. Trying to get it wholesale though.
__________________
Evan - 1969 C10 LWB fltsd 307 3spd man.steer 3.73 rear orig.white/turquoise poly with drk turquoise int - 1972 Custom Deluxe10 LWB fltsd 350/TH350 pwr. steer/brks A/C 3.07posi rr orig.med blue with blue cloth trim. |
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