Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Disabling intake and exhaust valves (going to 8 valves in a 16-v head)

Gasoline Fumes · 01-23-2013, 04:23 AM

I should add that I tried the increased valve lash. I just used my thickest feeler gauge on both the intake and exhaust. I think it was 0.035". Or about five times the correct lash! It seemed to help out the low end a little. And I kinda like the ticking sound.

And with only 8 valves, I was able to fully advance the distributor without pinging. That gained me even more on the low end.

01-23-2013, 04:23 AM	#51 (permalink)
Gasoline Fumes Too many cars Join Date: Oct 2009 Location: New York State Posts: 1,599 CRXFi - '88 Honda CRX XFi Insight 256 - '00 Honda Insight Team Honda Gen-1 Insights Insight 5342 (no IMA) - '00 Honda Insight Team Honda Gen-1 Insights 90 day: 66.3 mpg (US) Thanks: 1,353 Thanked 797 Times in 475 Posts	I should add that I tried the increased valve lash. I just used my thickest feeler gauge on both the intake and exhaust. I think it was 0.035". Or about five times the correct lash! It seemed to help out the low end a little. And I kinda like the ticking sound. And with only 8 valves, I was able to fully advance the distributor without pinging. That gained me even more on the low end. __________________ 2000 Honda Insight 2000 Honda Insight 2000 Honda Insight 2006 Honda Insight (parts car) 1988 Honda CRXFi 1994 Geo Metro