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filling up with 100 octane, need advice.
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07-13-2008, 09:46 AM | #1 |
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filling up with 100 octane, need advice.
alright guys so at the middle of the week, im going to sunoco and gonna get about 4-5 gallons of there 100 octane.
all i have on my car is a SSTT and a K&N drop in. so i am gonna mix a gallon or two of 93 octane and the 4-5 gallons of 100 octane together. should i see a nice performance increase? also is mixing it sound good. im not sure if i want to run straight 100 octane. any advice please. |
07-13-2008, 09:48 AM | #2 | |
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07-13-2008, 11:23 AM | #4 |
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07-13-2008, 02:25 PM | #5 | |
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07-13-2008, 04:42 PM | #6 |
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The tune doesn't adapt on the fly does it? The only reason to run higher octane is so you can use a more aggressive map afaik. Higher octane with an unchanged map will actually decrease power won't it?
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07-13-2008, 05:40 PM | #7 |
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You can run straight 100 unleaded everyday if you dont mind the bucks.As far as performance goes the power difference wont feel different unless you run higher than stock boost levels or have any other performance enhancing tune.
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07-14-2008, 07:55 PM | #9 |
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you should feel 100 octane on a hot summer day with a good tune. it could be the SSTT is causing the ecu to alter other parameters to protect the engine. piggy-back's have that disadvantage since you aren't telling the ecu what to do.
if you've disassembled a modern ecu you'll find every single sensor has many many maps and calculations to every sensor. 6 degrees of seperation. been that way since the late 80's early efi.
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07-14-2008, 08:02 PM | #10 |
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It won't harm anything to run the 100. However the only time you would feel a performance difference is if the car was pulling boost/timing due to detonation while on pump gas. That COULD happen during really hot weather.
I have driven a car with a full tank of 100 and SSTT (not my car FWIW) and can tell you that it pulls like a SOB.
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07-14-2008, 09:51 PM | #11 | |
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anyone else with experience? |
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07-14-2008, 09:52 PM | #12 |
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07-14-2008, 10:57 PM | #13 |
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I let my tank empty down till I only had 10 miles left in my range and put in 6 gallons of sunoco 100. I drove it in the day and at night when it was cooler. Honestly I really couldn't tell any difference, maybe it was a little bit more torquey down low but nothing that would be worth the extra $$$.
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07-15-2008, 08:46 AM | #15 |
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don't waste your money on high octane unless you have a very aggressive tune to take advantage of it. The gas doesn't have more energy, it just allows more advanced timing without detonation.
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07-15-2008, 10:08 AM | #16 |
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I say go ahead and do it....I noticed a very noticeable difference on race gas vs pump when I had it in. Butt-o-meter would say 20-25whp or so.
Car felt like it was on crack! Wish I could find a few stations around here to fill up w/ the good stuff, none to be found.
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07-15-2008, 10:16 AM | #18 |
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try and it and if you dont like it nj335i will refund you the money....100% satisfaction gauranteed!
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07-15-2008, 10:17 AM | #19 |
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thanks for all the input guys... im gonna go ahead and give it a try...ill get 3-4 gallons or w.e. 30-35 bucks can buy me and throw it in when im on empty. ill give it a couple miles to adapt and such and make a video aswell
thanks again guys |
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07-15-2008, 10:18 AM | #21 | |
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Valentin's Loch Raven Sunoco 8000 Loch Raven Blvd. Towson, MD 21286 (410) 337-3851 They have Sunoco GT100 at the pump, I've been there personally. I guess it depends on your definition of "close", but could be worth it in a pinch, I guess... |
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