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Old 10-16-2005, 10:26 AM   #1
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octane level with a 50 shot

I am putting a wet kit on my 02 svt and i am going to run a 50 shot. Will there be any issues that arise from me using regular 93 octance gas or will i need to use higher octane to prevent detonation? Also would using that cheesy octane booster you can get at gas stations or wal-mart help?your advice is appreciated


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Old 10-16-2005, 11:53 AM   #2
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octane booster is a waste of money, period. 93 should be fine, I would recommend colder copper plugs as well and you'll definitely be aok. We have a drum of 111 octane in the trunk. When I had the 50 shot on I'd add a gallon or two to the half-tank of 91 I already had, it kept it around 93-95 and never had any problems. With a bigger shot I run 101, but we have that in a pump at a station nearby. Probably overkill but I am tired of taking parts out of my car like pistons :P Good luck, nitrous is fun


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Old 10-16-2005, 01:55 PM   #3
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The higher the Octane you use the larger the safety factor you have , I also recomend using 2 pill sizes larger on the fuel , it all for safety

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Old 10-16-2005, 02:21 PM   #4
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I run 93 on my car with a 50 shot with no problems yet.
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Old 10-16-2005, 06:05 PM   #5
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Quote:
Originally posted by 1turbofocus
The higher the Octane you use the larger the safety factor you have , I also recomend using 2 pill sizes larger on the fuel , it all for safety

Tom

You don't believe that running 2 pills larger on the fuel side will increase the chance of puddling the intake??
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Old 10-16-2005, 06:24 PM   #6
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If you spray between 3k and 6k without bogging or hitting the rev limiter there is very little chance the moving air will give the fuel a chance to puddle. If it is mixed in the intake tube it should stay atomized far beyond the combustion chamber distance-wise. NX is pretty good quality, if you go with what they say at 50 you should be ok, but going bigger on fuel is not a bad idea, particularly at higher levels.

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Old 10-16-2005, 10:43 PM   #7
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thanks! what do you mean by "2 pills"? Is there any such thing as too much octane?
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Old 10-16-2005, 11:20 PM   #8
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you can't find unleaded gas in more than 101 octane readily, so no there is no such thing really. The 111 we use is leaded, which will eat o2s and cats on most cars, so its not an option for most ppl. More than 95ish is probably overkill imo for a small nitrous shot.

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Old 10-16-2005, 11:21 PM   #9
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one more question. is it safer to run a direct port injection kit over a wet kit or would this be wasted money (with a 50-75 shot)?
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Old 10-17-2005, 12:18 AM   #10
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no, its a highly debated topic, but there is no real difinitive answer. I have run both systems, and I doubt there is much difference at a low shot. If you spray far enough away from the tb (8" or more) it all spreads out nicely and is distributed evenly enough. With a big shot (150 or more) I think maybe direct port can be better, but again there are people who say direct port is the devil, so its ultimately up to you. I like the simplicity of the fogger kit, easy to change out, easy to maintain, easy to install. If I had my ultimate kit it'd be a direct port 75 shot with a 50-75 fogger second stage utilizing the best of both worlds. But money is a limit for most focus owners, so a simple single nozzle type fits most people's needs perfectly.

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