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Old 02-09-2015, 09:59 PM   #12 (permalink)
BabyDiesel
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Join Date: Dec 2012
Location: Johnston County, NC
Posts: 931

Big Blazin' - '88 Chevrolet K5 Blazer Silverado
SUV
90 day: 14.97 mpg (US)

Chili - '00 Honda Insight
Gen-1 Insights
Team Honda
House of Tudor
Team Streamliner
90 day: 72.29 mpg (US)
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Hondaguy72 - I'll be honest, I had never heard of milling a head before you mentioned it
It does seem like milling would give me the cc's needed for higher compression (0.006" per cc). The forum research I have done has sown that I can delete 5-6 cc's max and bump up my compression by .5 - .75 points. Soooo ---v

355 w/ milled 350 Vortec heads, 59cc, 0.035 quench, piston 0.01" in the hole, 0cc dish - 11.97 CR

355 w/ milled 305 Vortec heads, 52cc, 0.035 quench, piston 0.01" in the hole, 0cc dish - 13.26 CR

Oddly, the super small cc 305 heads put me inline with the Prius's CR.

The 700r4 is staying. I had to drive my mama's Trailblazer with the updated version of the 700r4 in it. I was coasting up to 1/4 mile on flat ground to slight inclines with out losing much speed, much better than my "good aero" ZX2.

Thanks for the info!
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Past threads:
ZX2 modding thread
Ecomodder's Top 10: How they do it!
ZX2 Aerodynamics: Shooting for 0.15 Cd
ZX2 coast-down testing for Cd & Crr

Last edited by BabyDiesel; 02-10-2015 at 11:02 AM.. Reason: Forgot to thank Hondaguy72
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