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BLENDING FUEL #840038 10/27/10 02:05 AM 10/27/10 02:05 AM
Joined: Jul 2004 Posts: 4,384 Worst Weather USA 493_DART OP master
493_DART OP master Joined: Jul 2004 Posts: 4,384 Worst Weather USA	Is it a bad idea to blend unleaded pump gas with higher octane LEADED race gas ? as in Bp 91 mixed with sunoco 110

Re: BLENDING FUEL [Re: 493_DART] #840039 10/27/10 02:21 AM 10/27/10 02:21 AM
Joined: Jan 2003 Posts: 3,616 Riverside, Ca G G_bob master
G_bob master G Joined: Jan 2003 Posts: 3,616 Riverside, Ca	No big deal. It's a linear mixture. 1 gal of the 91 plus 1 gallon of the 110 nets 2 gallons of 100.5 2 gal 91 plus 1 gal 110 = 3 gal of 97.33, etc.

Re: BLENDING FUEL [Re: G_bob] #840040 10/27/10 10:52 AM 10/27/10 10:52 AM
Joined: Mar 2008 Posts: 5,746 Ontario, Canada Dodgem master
Dodgem master Joined: Mar 2008 Posts: 5,746 Ontario, Canada	Quote: No big deal. It's a linear mixture. 1 gal of the 91 plus 1 gallon of the 110 nets 2 gallons of 100.5 2 gal 91 plus 1 gal 110 = 3 gal of 97.33, etc. did it for years when I had 12.2 with iron heads 40% 110 60% 94 = 100.4 on the street I would use 94 and turn the total back to 33 and no ping at 38 it pinged fairly good. Aluminum heads and 11.7 to one and straight 94 nice for a poor retired guy!!!

Re: BLENDING FUEL [Re: 493_DART] #840041 10/27/10 01:34 PM 10/27/10 01:34 PM
Joined: Jul 2004 Posts: 19,318 State of confusion T Thumperdart I Live Here
Thumperdart I Live Here T Joined: Jul 2004 Posts: 19,318 State of confusion	Been doing it for a few years now and usually just mix 50/50 cos it`s easier that way. I`ve heard C-12 doesn`t mix well w/pump but never tried it myself. I like trick 110 leaded and they even recommend mixing and have a chart to help out. 72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....

Re: BLENDING FUEL [Re: Thumperdart] #840042 10/27/10 02:11 PM 10/27/10 02:11 PM
Joined: Oct 2003 Posts: 2,537 PORT ALBERNI , BC., CANADA superwrench master
superwrench master Joined: Oct 2003 Posts: 2,537 PORT ALBERNI , BC., CANADA	I've regularly mixed C-12 and 94 Chevron unleaded at a 50/50 mix......never noticed any problems. Couldn't hear mine ping anyways...mufflers on or mufflers off .....so I just leave the timing at 35* and keep an eye on the plugs.

Re: BLENDING FUEL [Re: superwrench] #840043 10/27/10 02:21 PM 10/27/10 02:21 PM
Joined: Jun 2003 Posts: 9,225 Charleston S sixpackgut Drag Week Mod Champion
sixpackgut Drag Week Mod Champion S Joined: Jun 2003 Posts: 9,225 Charleston	if you can get AV gas its only about $4 a gallon here. i mix 5 gallons of AV gas to about 10 gallons of 93 when i go to the track Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs

Re: BLENDING FUEL [Re: sixpackgut] #840044 10/27/10 02:30 PM 10/27/10 02:30 PM
Joined: Oct 2003 Posts: 996 Queens, New York H Harley super stock
Harley super stock H Joined: Oct 2003 Posts: 996 Queens, New York	I have always mixed race gas and pump gas and gotten the fastest et out of my combo in doing so.

Re: BLENDING FUEL [Re: 493_DART] #840045 10/27/10 03:32 PM 10/27/10 03:32 PM
Joined: Jan 2003 Posts: 1,855 Staten Island N.Y. Dap top fuel
Dap top fuel Joined: Jan 2003 Posts: 1,855 Staten Island N.Y.	Is E-85 available in your area? PRH446 10.084 @ 135.21 mph N/A through chambered mufflers,3300lbs. Stock stroke wedge

Re: BLENDING FUEL [Re: Dap] #840046 10/27/10 05:54 PM 10/27/10 05:54 PM
Joined: May 2004 Posts: 3,210 robin hood country deaks master
deaks master Joined: May 2004 Posts: 3,210 robin hood country	I mix 1 gal C16 to 1 gal 97 unleaded for around 12.5 to 1, could i use less race fuel? 69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200# best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft best 60ft 1.36

Re: BLENDING FUEL [Re: sixpackgut] #840047 10/27/10 07:27 PM 10/27/10 07:27 PM
Joined: Jul 2004 Posts: 4,384 Worst Weather USA 493_DART OP master
493_DART OP master Joined: Jul 2004 Posts: 4,384 Worst Weather USA	Quote: if you can get AV gas its only about $4 a gallon here. i mix 5 gallons of AV gas to about 10 gallons of 93 when i go to the track whats the octane on AV? is it hard on rubber lines , etc.. ?

Re: BLENDING FUEL [Re: Dap] #840048 10/27/10 07:27 PM 10/27/10 07:27 PM
Joined: Jul 2004 Posts: 4,384 Worst Weather USA 493_DART OP master
493_DART OP master Joined: Jul 2004 Posts: 4,384 Worst Weather USA	Quote: Is E-85 available in your area? im sure it is , but i cant afford the conversion

Re: BLENDING FUEL [Re: 493_DART] #840049 10/27/10 07:48 PM 10/27/10 07:48 PM
Joined: Aug 2009 Posts: 47 wv D dakster member
dakster member D Joined: Aug 2009 Posts: 47 wv	Here's on online octane calculator from motor sports racing fuels. http://www.motorsportsracingfuels.com/OctaneCalculator.html

Re: BLENDING FUEL [Re: dakster] #840050 10/27/10 08:07 PM 10/27/10 08:07 PM
Joined: Apr 2003 Posts: 1,613 Burlington,Ont. 77DragracerR/T top fuel
77DragracerR/T top fuel Joined: Apr 2003 Posts: 1,613 Burlington,Ont.	Quote: Here's on online octane calculator from motor sports racing fuels. http://www.motorsportsracingfuels.com/OctaneCalculator.html Thanks for that Very helpful info there. So my 50/50 mix I've been doing for my 408 with Ultra 94 & C12 gives me 101 octane. Still not sure how much i should be running with 11.9 comp. & aluminum heads.It's been good so far and plugs always look clean. 77 Aspen R/T 60'@1.41 10.76 @ 123.26 http://www.youtube.com/watch?v=Eya3Ue8KoZk

Re: BLENDING FUEL [Re: 493_DART] #840051 10/27/10 09:45 PM 10/27/10 09:45 PM
Joined: Jun 2003 Posts: 9,225 Charleston S sixpackgut Drag Week Mod Champion
sixpackgut Drag Week Mod Champion S Joined: Jun 2003 Posts: 9,225 Charleston	Quote: Quote: if you can get AV gas its only about $4 a gallon here. i mix 5 gallons of AV gas to about 10 gallons of 93 when i go to the track whats the octane on AV? is it hard on rubber lines , etc.. ? 100LL av gas is what i buy. i guess its 100 octane. i really dont know. its lighter than normal gas so jetting up a little would help(this might be problem for you ) Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs

Re: BLENDING FUEL [Re: sixpackgut] #840052 10/28/10 02:18 AM 10/28/10 02:18 AM
Joined: Jul 2004 Posts: 4,384 Worst Weather USA 493_DART OP master
493_DART OP master Joined: Jul 2004 Posts: 4,384 Worst Weather USA	ive got 90 jets in it now im going to run her saturday--last chance around here .

Re: BLENDING FUEL [Re: 493_DART] #840053 10/28/10 09:43 AM 10/28/10 09:43 AM
Joined: Jun 2003 Posts: 9,225 Charleston S sixpackgut Drag Week Mod Champion
sixpackgut Drag Week Mod Champion S Joined: Jun 2003 Posts: 9,225 Charleston	Quote: ive got 90 jets in it now im going to run her saturday--last chance around here . dont you think that those 90s is what got you to open your wallet? or have you figured out something else that caused you to torch the head? Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs

Re: BLENDING FUEL [Re: sixpackgut] #840054 10/28/10 05:00 PM 10/28/10 05:00 PM
Joined: Jan 2005 Posts: 1,775 Keymar, MD DusterKid top fuel
DusterKid top fuel Joined: Jan 2005 Posts: 1,775 Keymar, MD	I mix 3 gal 93 pump gas to 1 gal sunoco 110

Re: BLENDING FUEL [Re: sixpackgut] #840055 10/29/10 12:45 AM 10/29/10 12:45 AM
Joined: Jul 2004 Posts: 4,384 Worst Weather USA 493_DART OP master
493_DART OP master Joined: Jul 2004 Posts: 4,384 Worst Weather USA	Its hard to say Ray . i must have been on the edge with 34 total and 93 walmart gas. , yet i had big jets in it , 96 . Now knowing i am around 12.5:1 . but that was mostly ran in the Brutal heat / high humidity. was it the comp + gas ? was it just the gasket? Going to 90 jets and great air? the head bolts were tight as F. and i see Edelbrock NOW uses a Eddy labeled package that is a FELPRO 8519 . Why did they change? gasket issues? I dont have the answer ray -- i DO have it loaded with 110 gas now

Re: BLENDING FUEL [Re: 493_DART] #840056 10/29/10 01:30 AM 10/29/10 01:30 AM
Joined: Jan 2003 Posts: 6,591 Canton, Ohio S Sport440 master
Sport440 master S Joined: Jan 2003 Posts: 6,591 Canton, Ohio	IMO, theres no doubt that detonation had a key role in kicking out the gasket, once you dropped the jet size in great air. On the Edelbrock gasket question! Theres a big thread about that in the Archives. People would spend Extra money to get Edelbrock HD 12.5 + gaskets. They used to be different ,but were replaced with the Felpro 8519pt gaskets, because of availability problems. Witch you can get for $20 bucs less if you just ask for the FelPro 8519pt gaskets, What gaskets are you using on this rebuild? If its the 8519pt, I wouldnt be to concerned. mike

Re: BLENDING FUEL [Re: Sport440] #840057 10/29/10 01:42 AM 10/29/10 01:42 AM
Joined: Jul 2004 Posts: 4,384 Worst Weather USA 493_DART OP master
493_DART OP master Joined: Jul 2004 Posts: 4,384 Worst Weather USA	they are 8519pt oh , and its not a "rebuild" , just welded 1 head + new head gaskets

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