can i benefit from mixing 104 unleaded with 93 octane?

03snakeminated · December 2nd, 2008, 06:11 PM

trying to squeeze a lil bit of power, right now i am at 485hp 495tq on 93 octane tune(2.80 upper,2lb lower ported eaton) i was thinkin about using 110 leaded fuel but that now is out of the equation, i bought a 5 gallon pale of 104 gt unleaded, and was thinking about doing a 50/50 mix with 93 octane and retuning car, do you guys think i would be able to hit 500hp with the added benefits of higher octane? some of you might think i'm racing numbers but to each his own, thanks for your input guys

03snakeminated · December 2nd, 2008, 08:03 PM

bump

03snakeminated · December 2nd, 2008, 10:00 PM

anyone?

Mustang RacR94 · December 3rd, 2008, 12:07 AM

you will so almost no power gain by running the higher octane period, without the correct tune you'll get almost nothing what so ever, and if your tuned for 93 octane im not sure if you can even run higher without causing damage

but no you wont see any additinol power

ReverendDexter · December 3rd, 2008, 12:42 AM

Originally Posted by Mustang RacR94

and if your tuned for 93 octane im not sure if you can even run higher without causing damage

Do you have any examples to back this up? It's my understanding that running higher octane than you're tuned for is still okay; it's running lower octane that will cause issues.

Garrett · December 3rd, 2008, 12:45 AM

I have no idea...I tried and looked some information up on Google and found nothing what so ever.

Mustang RacR94 · December 3rd, 2008, 01:24 AM

thats why I said im not sure about when you go up in octane, only down

not sure how I worded it, but i meant it to sound like I didnt know if it would hurt if you ran higher octane, but I know lower does, as far as power I dont think it would add any benefit to power, not sure if it would hurt anything running higher octane, but I just wanted to say I guess its a possibility, im just not sure

03snakeminated · December 3rd, 2008, 06:44 AM

i'm not spending all that money on race gas and leaving the same parameters, the car is getting retuned for the higher octane there has to be some gains with the added timing, how much? I don't know, that's what I was hoping, a rough estimate from some of you guys

Smoothgrandmama · December 3rd, 2008, 12:04 PM

Mixing fuel is not something i would do if you want to make 500 hp it should be fairly easy with the numbers your making. I believe you can make about 20 + more hp with some super high octanes

03_StangGuy · December 3rd, 2008, 12:13 PM

Running higher octane will do nothin good, It can hurt fuel economy though. The fuel being harder to burn may not burn completely.

03snakeminated · December 3rd, 2008, 01:00 PM

I overheard someone said that up to 95 or 96 octane (i can't remember which) our s/c cars should see some gain, more than that its not as beneficial unless you are turbo. Now that could probably be a full load of crap, but I don't know.

Randy Stinchcomb · December 3rd, 2008, 01:15 PM

also different brands of fuel Do Not blend well and could actually cause you problems, I'd avoid doing it....

03_StangGuy · December 3rd, 2008, 01:33 PM

Originally Posted by 03snakeminated

I overheard someone said that up to 95 or 96 octane (i can't remember which) our s/c cars should see some gain, more than that its not as beneficial unless you are turbo. Now that could probably be a full load of crap, but I don't know.

Its all about the tune. the car is setup to get the most power out of the setup without detonation for a certain octane level. If you increase it you dont increase the capabilities of the tune just the fuel. A slight increase will make it safer depending how high strung your tune is but now power gains.

03snakeminated · December 3rd, 2008, 01:46 PM

thanks ^^^^ , I am getting the car dyno as i type, i'll let you all know how it did.

Smoothgrandmama · December 3rd, 2008, 02:16 PM

Originally Posted by 03_StangGuy

Running higher octane will do nothin good, It can hurt fuel economy though. The fuel being harder to burn may not burn completely.

He said he was getting a tune for it which means it ofcourse would help. Running a higher octane without tuning for is a waste of gas

PapaSmurf · December 3rd, 2008, 02:42 PM

looking forward to the results

Mustang RacR94 · December 3rd, 2008, 03:57 PM

if you get it tuned for the higher octane, you can see benefits, but without the tune, i dont beleive you will at all

03snakeminated · December 3rd, 2008, 04:41 PM

lets just say car doesn't like race fuel, it made the same power with all the tuning,tweaking and whatnot, I guess it wasn't meant to be

rwboring · December 3rd, 2008, 04:55 PM

not unless you have a tune for it... and make sure it isnt leaded or you can really fuck shit up....

jumperjack · December 3rd, 2008, 09:01 PM

What did the tuner do with the timing?

December 2nd, 2008, 06:11 PM	#1
03snakeminated Regular Join Date: Aug 2008 Posts: 422 iTrader: 0 reviews	can i benefit from mixing 104 unleaded with 93 octane? trying to squeeze a lil bit of power, right now i am at 485hp 495tq on 93 octane tune(2.80 upper,2lb lower ported eaton) i was thinkin about using 110 leaded fuel but that now is out of the equation, i bought a 5 gallon pale of 104 gt unleaded, and was thinking about doing a 50/50 mix with 93 octane and retuning car, do you guys think i would be able to hit 500hp with the added benefits of higher octane? some of you might think i'm racing numbers but to each his own, thanks for your input guys

December 3rd, 2008, 12:07 AM	#4
Mustang RacR94 MM Fanatic 99 cobra N/A Join Date: Dec 2006 Location: Fayetteville NC Posts: 3,150 iTrader: 0 reviews	you will so almost no power gain by running the higher octane period, without the correct tune you'll get almost nothing what so ever, and if your tuned for 93 octane im not sure if you can even run higher without causing damage but no you wont see any additinol power __________________ 99 Cobra 03 Cobra motor AFCO H/E Pulley JLT CAI BBK L/T off road H/steeda catback SCT MAF Tune 03 cobra pumps HVGC

December 3rd, 2008, 12:45 AM	#6
Garrett Hardcore Enthusiast 1998 Mustang gt Join Date: Nov 2008 Location: Myrtle Beach, sc Posts: 1,390 iTrader: 2 reviews	I have no idea...I tried and looked some information up on Google and found nothing what so ever. __________________ myspace.com/garrettstarnes 2004 4.6 engine. Cold air intake. Stage2 clutch. Spec Flywheel. Intake spacer. Throtle Body spacer. More to come!

December 3rd, 2008, 01:24 AM	#7
Mustang RacR94 MM Fanatic 99 cobra N/A Join Date: Dec 2006 Location: Fayetteville NC Posts: 3,150 iTrader: 0 reviews	thats why I said im not sure about when you go up in octane, only down not sure how I worded it, but i meant it to sound like I didnt know if it would hurt if you ran higher octane, but I know lower does, as far as power I dont think it would add any benefit to power, not sure if it would hurt anything running higher octane, but I just wanted to say I guess its a possibility, im just not sure __________________ 99 Cobra 03 Cobra motor AFCO H/E Pulley JLT CAI BBK L/T off road H/steeda catback SCT MAF Tune 03 cobra pumps HVGC

December 3rd, 2008, 12:04 PM	#9
Smoothgrandmama MasterDeBater 12 GT 8.46@88 1/8 Join Date: Apr 2007 Location: Willis,Texas Posts: 7,071 iTrader: 6 reviews	Mixing fuel is not something i would do if you want to make 500 hp it should be fairly easy with the numbers your making. I believe you can make about 20 + more hp with some super high octanes __________________ Join The MM Facebook: Modded Mustangs Facebook Vote For Modded Mustangs Ride of the Month Eskimo Brothers To Smooth: Safi, Blitz34, Graystang01, WillTheThrill, Bwal

December 2nd, 2008, 08:03 PM	#2
03snakeminated Regular Join Date: Aug 2008 Posts: 422 iTrader: 0 reviews	bump

December 2nd, 2008, 10:00 PM	#3
03snakeminated Regular Join Date: Aug 2008 Posts: 422 iTrader: 0 reviews	anyone?

December 3rd, 2008, 06:44 AM	#8
03snakeminated Regular Join Date: Aug 2008 Posts: 422 iTrader: 0 reviews	i'm not spending all that money on race gas and leaving the same parameters, the car is getting retuned for the higher octane there has to be some gains with the added timing, how much? I don't know, that's what I was hoping, a rough estimate from some of you guys

December 3rd, 2008, 12:13 PM	#10
03_StangGuy I Poop Entirely Way Too Much Blown 03 GT Join Date: Jun 2007 Location: Long Island NY Posts: 6,837 iTrader: 0 reviews	Running higher octane will do nothin good, It can hurt fuel economy though. The fuel being harder to burn may not burn completely. __________________

December 3rd, 2008, 01:00 PM	#11
03snakeminated Regular Join Date: Aug 2008 Posts: 422 iTrader: 0 reviews	I overheard someone said that up to 95 or 96 octane (i can't remember which) our s/c cars should see some gain, more than that its not as beneficial unless you are turbo. Now that could probably be a full load of crap, but I don't know.

December 3rd, 2008, 01:15 PM	#12
Randy Stinchcomb Regular 1996 Mustang GT coupe 11.99@113.93mph Join Date: Nov 2008 Location: Randallstown, Md Posts: 318 iTrader: 0 reviews	also different brands of fuel Do Not blend well and could actually cause you problems, I'd avoid doing it.... __________________ *Thumbdinger.com* Fish With Protection

December 3rd, 2008, 01:46 PM	#14
03snakeminated Regular Join Date: Aug 2008 Posts: 422 iTrader: 0 reviews	thanks ^^^^ , I am getting the car dyno as i type, i'll let you all know how it did.

December 3rd, 2008, 02:42 PM	#16
PapaSmurf Hardcore Enthusiast 2003 Mustang GT 12.28 @ 116 Join Date: Jan 2008 Location: Chesapeake, VA Posts: 2,554 iTrader: 13 reviews	looking forward to the results __________________ 2003 Sonic Blue GT---SLP Longtubes, SLP X, Magnaflow Magnapack CB, 75mm TB/Plenum, MP2 Performance stage 2 heads, MHS Stage 3R cams, Built rear w/4.30's

December 3rd, 2008, 03:57 PM	#17
Mustang RacR94 MM Fanatic 99 cobra N/A Join Date: Dec 2006 Location: Fayetteville NC Posts: 3,150 iTrader: 0 reviews	if you get it tuned for the higher octane, you can see benefits, but without the tune, i dont beleive you will at all __________________ 99 Cobra 03 Cobra motor AFCO H/E Pulley JLT CAI BBK L/T off road H/steeda catback SCT MAF Tune 03 cobra pumps HVGC

December 3rd, 2008, 04:41 PM	#18
03snakeminated Regular Join Date: Aug 2008 Posts: 422 iTrader: 0 reviews	lets just say car doesn't like race fuel, it made the same power with all the tuning,tweaking and whatnot, I guess it wasn't meant to be Last edited by 03snakeminated; December 3rd, 2008 at 04:59 PM.

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December 3rd, 2008, 04:55 PM	#19
rwboring Banned 2008 GCSRT8, 1965 Coupe; Join Date: Sep 2008 Posts: 318 iTrader: 0 reviews	not unless you have a tune for it... and make sure it isnt leaded or you can really fuck shit up....

December 3rd, 2008, 09:01 PM	#20
jumperjack Regular Join Date: May 2008 Posts: 141 iTrader: 0 reviews	What did the tuner do with the timing?

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