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| how low can i go https://slantsix.org/forum/viewtopic.php?t=8892 |
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| Author: | moparfreak [ Thu Apr 01, 2004 9:31 pm ] |
| Post subject: | how low can i go |
ok i've been thinking about shaving my head and am wondering how much i can remove before i need to change from 87 octane with gas prices jumping around like they are i don't want to spend any more for my gas |
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| Author: | 70valiant [ Fri Apr 02, 2004 3:26 am ] |
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I took 0.100" off of my head w/ a felpro head gasket and I cant run less than 92 octane at 3* before top dead center |
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| Author: | Doc [ Fri Apr 02, 2004 8:40 am ] |
| Post subject: | |
It is better to run a lower compression engine with more spark advance rather then have to keep the timing retarded on a higher comp. engine. If you don't want to pay for Hi-test fuel, just do a skim-cut on the head. DD |
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| Author: | Marten [ Fri Apr 02, 2004 9:33 am ] |
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Valiants for export had lowered compression ratio, around 8,5:1. Mine is US spec, but have had no trouble running it on 95, (lowest octane here) altough I rather go for 98. Gas prices? we pay close to US$5/gallon... |
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| Author: | moparfreak [ Fri Apr 02, 2004 10:22 am ] |
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i live in canada and gas prices are around 80 cents a liter so i'm looking at around five bucks a gallon for 87 octane which is why i was asking |
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| Author: | Marten [ Fri Apr 02, 2004 2:44 pm ] |
| Post subject: | |
How much is a CDN$ nowadays? Havent been to Canada since a was eight... |
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| Author: | steponmebbbboom [ Fri Apr 02, 2004 5:00 pm ] |
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72, 73 cents US last time I checked Are you sure those octane numbers are right? Is that in RON? I think 91 RON is 87 regular octane |
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| Author: | Ron Parker [ Fri Apr 02, 2004 5:41 pm ] |
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My other engine i took out was basicly stock exept i milled the head 125 thousand. It did not like 87 but eat up 92 octane. I tried 106 racing foel in it and it slowed the car down. Thanks Ron Parker Hell Hath No Wrath Than A Possum Scorned |
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| Author: | Marten [ Sat Apr 03, 2004 4:37 am ] |
| Post subject: | |
We have a different octane ratio measure overseas, think our 95 is pretty close to regular 87. We did run 115 octane in an old Volvo 140 once, and that did some difference... after fiddling with ignition settings of course. It did eventually kill it too, probably for the best, one Volvo less on the roads! 
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| Author: | moparfreak [ Mon Apr 05, 2004 8:42 pm ] |
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so would i be good at say ten thousand or not if not i'm not going to bother |
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| Author: | Doctor Dodge [ Mon Apr 05, 2004 10:02 pm ] |
| Post subject: | |
A basic clean-up cut will take about .010 so go for it. Surfacing the head gives you a dead flat and freshly machined surface to seal the head gasket, well worth doing in my mind. DD |
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| Author: | moparfreak [ Tue Apr 06, 2004 9:33 am ] |
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could i go the same on the block just to be fair don't want the block to feel left out 
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| Author: | 70valiant [ Tue Apr 06, 2004 7:22 pm ] |
| Post subject: | |
3.78L=1 galX$0.80= $3.02/gal  I'm still only paying $1.85 for 93 octane
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| Author: | steponmebbbboom [ Tue Apr 06, 2004 8:24 pm ] |
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$0.80 CDN or US?  It's still skewed, though. If I had the patience to wait three hours at the Niagara border, Id be driving down there to fill up.
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| Author: | Pierre [ Tue Apr 06, 2004 10:04 pm ] |
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Quote: I'm still only paying $1.85 for 93 octane
Lucky! Try $2.11 here for 87 octane .... silly California. The price is changing by the hour... you go out at the beginning of the day and its liable to go up a nickel by the time you come back home at night.
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