Stock GT's run different with 93 octane rather than 87?
I'm getting ready to buy the SCT X3 with the 93 tunes. The past tank and a half I've ran 93 Octane instead of the regular 87 to get ready for the tune.
Does the stock engine react different to the 93 octane gas with a tune? Maybe its in my head but the engine seems a little more crisp.
The stock engine tune does compensate a bit for higher octane, but not as much as a tune. With a CAI and tune, you will gain approx 25 HP with 93 octane.
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2006 GT Tungsten Grey 5 spd, Xcal2/Pipeline CAI, Powerhouse tune. Spoiler delete. Front Speakers:Infinity 6812CF;Blaupunkt GTc652. Rear:Infinity Kappa 682.7CF. H/U:Alpine CDA-9885. Alpine MRP-F250 amp. Sequentials. President of the Splash guard registry. On Deck: Motoblue UDP's.
I'm just going to get the tune for now, no CAI. I'm thinking there won't be much of a difference not having a CAI under 30MPH. I just want more torque and throttle response.
I'm just going to get the tune for now, no CAI. I'm thinking there won't be much of a difference not having a CAI under 30MPH. I just want more torque and throttle response.
the CAI is only another $300 or so and it will make a big difference. I myself am like you where i do a lot of 30MPH city driving here in NJ. But with the CAI and tune i get much better throttle response, better MPG (you only bump up your mpg really with the CAI), and my exhaust tone is deeper and i like it!
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2007 Mustang GT Vert. Clutch Delete option 271.1/278.9 AFM's Unofficial "Mini-Mod King!"(Mods in profile) There are 3 things i learned from life *quote from the Bucket List*
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Even untuned, the PCM will throw a little more timing when it senses more octane.
Is this true of older PCMs? Mine's a '98, and I don't really feel a change when I get higher octane fuel... Is there a "break-in" period ,of like 3 tankfuls, of the same octane for the change to take effect? Or do you need to "reprogram" by disconnecting the battery to drain the PCM memory? (We do such a procedure for a CAI install so the PCM assimilates to more air coming in.)
Don't mean to hijack the thread (by going back in years)... but I think it's a valid question.
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Is this true of older PCMs? Mine's a '98, and I don't really feel a change when I get higher octane fuel... Is there a "break-in" period ,of like 3 tankfuls, of the same octane for the change to take effect? Or do you need to "reprogram" by disconnecting the battery to drain the PCM memory? (We do such a procedure for a CAI install so the PCM assimilates to more air coming in.)
Don't mean to hijack the thread (by going back in years)... but I think it's a valid question.
No the older PCMs don't have the adaptive learning and other sensors that the newer (Spanish Oak) PCMs have.
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07 REDFIRE GT 5 SPEED 3.55 gears
C&L Racer CAI XCAL2/Seq signals/GTAs/Steeda UDP/CHE K Member Brace W/Torq Links/J&M LCA/Spider DS/PRO.50 Shifter Hurst handle & "T"/Meziere EO2/ARH LT catted H /Prothane MM/Delet Plates/SLP BOSS 429 Scoop/Accel COP/PowerSlot/Hawk Pads/Tokico D-Spec/CHE Panhard Bar Brace/Steeda Adj. Panhard Bar/BMR F/R Sway Bars/Cervini ducktail spoiler/BMR UCA Mount/CHE UCA/GT\CS Rear Cover/AMChrome Bullets 18x9/10s/Nitto 255/45&295/45
Tillman Dyno Tune 307HP/322TQ
Is there any official word from Ford on this? They do say that the 2010 Mustangs are programmed to provide some additional torque with higher octane fuel, but I have not seen any statements like this on the 05-09s.
No the older PCMs don't have the adaptive learning and other sensors that the newer (Spanish Oak) PCMs have.
OK, thanks for answering! Sucks that mine doesn't "learn", but that just means I have to get a tuner. (Also, I didn't think I noticed any change... so it's good that I wasn't supposed to! )
OK, thanks for answering! Sucks that mine doesn't "learn", but that just means I have to get a tuner. (Also, I didn't think I noticed any change... so it's good that I wasn't supposed to! )
Yea, Give Chris a call at Tillmans. He's local to us and they have a new dyno if you want to go that way.
Oh yea, and He's good.
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07 REDFIRE GT 5 SPEED 3.55 gears
C&L Racer CAI XCAL2/Seq signals/GTAs/Steeda UDP/CHE K Member Brace W/Torq Links/J&M LCA/Spider DS/PRO.50 Shifter Hurst handle & "T"/Meziere EO2/ARH LT catted H /Prothane MM/Delet Plates/SLP BOSS 429 Scoop/Accel COP/PowerSlot/Hawk Pads/Tokico D-Spec/CHE Panhard Bar Brace/Steeda Adj. Panhard Bar/BMR F/R Sway Bars/Cervini ducktail spoiler/BMR UCA Mount/CHE UCA/GT\CS Rear Cover/AMChrome Bullets 18x9/10s/Nitto 255/45&295/45
Tillman Dyno Tune 307HP/322TQ
The 2008 Bullitt had a dual mode ECU that allowed it to take full advantage of premium fuel when used. The 2009 GTs may have gotten the same system. 2005-2008s did not have it and my car never repsonded to 93 or even 110 octane. Unless your car is trimming back timing on 87, you won't notice because the computer willl only give the maximum allowed for 87.
The 2008 Bullitt had a dual mode ECU that allowed it to take full advantage of premium fuel when used. The 2009 GTs may have gotten the same system. 2005-2008s did not have it and my car never repsonded to 93 or even 110 octane. Unless your car is trimming back timing on 87, you won't notice because the computer willl only give the maximum allowed for 87.
Can you point me in the direction you got that info from?
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07 REDFIRE GT 5 SPEED 3.55 gears
C&L Racer CAI XCAL2/Seq signals/GTAs/Steeda UDP/CHE K Member Brace W/Torq Links/J&M LCA/Spider DS/PRO.50 Shifter Hurst handle & "T"/Meziere EO2/ARH LT catted H /Prothane MM/Delet Plates/SLP BOSS 429 Scoop/Accel COP/PowerSlot/Hawk Pads/Tokico D-Spec/CHE Panhard Bar Brace/Steeda Adj. Panhard Bar/BMR F/R Sway Bars/Cervini ducktail spoiler/BMR UCA Mount/CHE UCA/GT\CS Rear Cover/AMChrome Bullets 18x9/10s/Nitto 255/45&295/45
Tillman Dyno Tune 307HP/322TQ
2008 Grabber Orange GT premium, 5 speed manual, 3.31s
Diablosport Predator Tuner and Bamachips tunes (93 Race, Torque, and Preformance), Boom Tubes
Kooks LT headers and catted H pipe, Steeda UDPs, delete plates, UCAs, LCAs, and Panhard brace, all waiting on time to install them
Stock GT's run different with 93 octane rather than 87? 
(Mods in profile)
Is there a "break-in" period ,of like 3 tankfuls, of the same octane for the change to take effect? 
Or do you need to "reprogram" by disconnecting the battery to drain the PCM memory? (We do such a procedure for a CAI install so the PCM assimilates to more air coming in.)
and my 1st baby on the way... 
)
