race gas revisited, why and when? |
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race gas revisited, why and when? |
Trekkor |
Mar 17 2005, 09:02 PM
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#1
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I do things... Group: Members Posts: 7,809 Joined: 2-December 03 From: Napa, Ca Member No.: 1,413 Region Association: Northern California |
Bought a five gallon jug of leaded 110 octane "VP" brand racing fuel. (IMG:http://www.914world.com/bbs2/html/emoticons/ohmy.gif)
My motor seems to have higher than stock compression. Lowest is 160 PSI. My speed shop guy says the valves will like the lead. (IMG:http://www.914world.com/bbs2/html/emoticons/chowtime.gif) Maybe I just like throwing money out my open windows at speed... (IMG:http://www.914world.com/bbs2/html/emoticons/huh.gif) KT |
TimT |
Mar 18 2005, 05:39 PM
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#2
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
I rec3ently read an article in the NY Times. Gist of the article was we have few refineries, and the refineriies have to make over 17 different formulations of gas (to suit the various states and EPA gas specs), one of the small reasons gas prices are going where the way they are.
ok back on topic, we run 100 or 112 octane in our 700+ hp turbo motor, this motor has s static cr of 8:1, and we run boost sometimes as high as 1.6 bar. This engine would hand grenade on anything other than high octane gas. We learned this the hard way when we were dyno tuning the car, and ran short of 110, so we cut it with 94, and melted one of the heads (IMG:http://www.914world.com/bbs2/html/emoticons/screwy.gif) ( could of been us looking for to much power) On close to stock cr engine 110 is pissing your money away. If you feel you need leaded fuel you can get 100 octane fuel for a few bucks less a gallon then 110, and it has that race gas smell blend some 93 and 100 and advance the timing a tad.. my $0.02 |
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