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I'm not sure but I've seen it somewhere forgot what forum about advancing timing. I just want to make sure I'm doing this right before screwing up my car. Advancing is for top end purposes right ?, and retarding is for a 1/4 mile pickup if u want a fast start. But what's the safest degree I can advance timing my car. I've also read by advancing timing, the engine will now runs hotter. So, can this attributes to overheating problems down the line ?
 

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which is better though for fuel mileage overall, and if i want my car to have good pickup around town, should i go for retarding it? what kinda of octance would i have to run if i was going to retard it?
 

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16degrees is the hot spot... and basically you wont see any cons with this. that is of course except you would have to pay for premium fuel. it wont make your car overheat... from what ive used it doesnt kill your fuel economy. and no retarding it will not increase bottom end... you will just loose power in general. although my cousin at the track bumped his timing up alot on premium fuel with octain booster and it was on h before the end of the 1/4 mile, as soon as he got off the throttle it cooled off. and really you cannot kill your car. you cannot get the timing so off that you cannot at least easily get it running again because you have bolts in slots the dist will only turn so far. this is a no brainer mod thats easy and if your willing to pay for premium fuel totally worth it.
 

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thescortgt said:
which is better though for fuel mileage overall, and if i want my car to have good pickup around town, should i go for retarding it? what kinda of octance would i have to run if i was going to retard it?
running premium does nothing for gas mileage, needed or not.

advancing the timing will create more power, but the car will seem to run hotter & you need to run premium, which is 20 cents more expensive...
 

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premium isn't needed just mid-grade. it you run regular it may ping. ran mine on midgrade for 2 years no problems. still averaging 28-29mph.

NEUMAN
 

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still averaging 28-29 boosted? cuz if so im like 2 mpg less without boost... "Ill have whatever hes having"
 

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FordBoy4ever said:
still averaging 28-29 boosted? cuz if so im like 2 mpg less without boost... "Ill have whatever hes having"
he's talking when he had his timing advanced... (ie BEFORE he went turbo)

wtf? :?
 

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yeah what the FUC*! whats your deal? dude sorry may i kiss your feet to make up for my stupidity? he wrote "still" moron so i was jokin around but bow to the know it all king
 

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this might be stupid.. but here goes


ok, what's the stock timing? i think i read somewhere it was 10 degrees.. (if so, answer the enxt question)

u say advance it 16 degrees... does that mean advance it 16 (so now it would be 26), or, advance it 6,(so now it's AT 16 degress..) someone help me out here..
 

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James92Scort said:
running premium does nothing for gas mileage, needed or not.
Not true. Higher octane fuel contains more energy per unit volume. I've run tests and the test consistently show that I get better gas mileage in an 87-recommended octane engine while running 91+ than I do when I run 87. Higher octane fuel tends to be better fuel and will generally get you better gas mileage.
 

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Did you drive the same places, speeds, gears, at the same time of year/temperature and everything? I /have/ heard that the ECU's on some cars can adjust slightly to run more advanced timing when you run premium, but I dunno if that's total BS or not.

Also, keep in mind that even if you do get better mileage out of premium, it's still 20 cents more expensive so it may not be worth it...
 

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i was trying to think in my head and i think i have heard of that before but one of the things a chip does is adjust timing to run a higher octain fuel. so while i think some cars may have the ability to do that i think THINK most generally dont (this would only be in a dis car)
 

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You're thinking about an anti-knock system. High compression cars or turbocharged cars like my 3000GT have systems that will detect knock and retard the timing and run richer to avoid it. The engines I tested it on did not have this feature and were designed to accept 87 octane pump gasoline. In my case, the increase in mileage did not offset the price, but in the case of my friend's car, which was an oldsmobile, it DID offset the cost of the gasoline. So in some cases, it's actually cheaper to run higher octane fuel.

I personally only use sunoco gasoline in my cars. They have the best commercial fuel on the market as far as I'm concerned. The SAE formula team at RPI uses 100 octane sunoco race gasoline in their car, and sunoco is known for their fuel in competitive racing applications.
 

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Well....don't know how it works on your side of the border...but here...not matter where you go..name them...Ultramar, Shell, Sergaz, Petro Canada.......Its all the same damn tank truck who delivers the fuel....

And then they might or not add some special additive like tactrol and such..but i wounder if there is really a difference...
 

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yeah the mpg was when i was N/A. im seeing about 24mpg now at best and im sitting at 10 degrees. tho my road trip back from Portland after the CS BBQ i did get 27.

NEUMAN
 

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sirigan, send me an AIM sometime (swigger01) and I'll send you over a video about RPI I found on the RIT DC hub :)
 

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siragan said:
James92Scort said:
running premium does nothing for gas mileage, needed or not.
Not true. Higher octane fuel contains more energy per unit volume. I've run tests and the test consistently show that I get better gas mileage in an 87-recommended octane engine while running 91+ than I do when I run 87. Higher octane fuel tends to be better fuel and will generally get you better gas mileage.
Your tests are either inconclusive or the difference is minimal, there are too many variables that are not within your realm of control when testing this sort of thing.
 
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