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Re: 110 unleaded mix for a 10.25 compression 440?
[Re: tubtar]
#644522
03/19/10 12:54 AM
03/19/10 12:54 AM
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Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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Quote:
Probably overkill.
I think that with aluminum heads and 10.25:1 , pump gas would be O.K.
I don't know that there is any more power to be had by using more octane than you need to avoid detonation.
You could throw a little more timing at it if it likes it , but unless you are near detonation , I bet 93 would be fine.
Randy I gotta agree with this as I have 10.0 comp with iron 906 heads and I run on 92 pump with no problems at all. I did use the quench pad pistons but unless you plan to run a ton of timing you should be fine on pump. I run 36 to 38 total all in by 2000. Ron
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Re: 110 unleaded mix for a 10.25 compression 440?
[Re: HardcoreB]
#644525
03/19/10 08:01 AM
03/19/10 08:01 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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no gain. my 11.2 hemi only gets a little splash of 110 and dont even think i need it but afraid of detonation .its a full race application.i think your safe with 93 octane.
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Re: 110 unleaded mix for a 10.25 compression 440?
#644526
03/19/10 08:20 AM
03/19/10 08:20 AM
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Joined: Mar 2007
Posts: 825
LENOX , MI
KMPX2
mopar addict
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mopar addict
Joined: Mar 2007
Posts: 825
LENOX , MI
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Re: 110 unleaded mix for a 10.25 compression 440?
[Re: Labratt]
#644529
03/19/10 11:58 AM
03/19/10 11:58 AM
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Joined: Jan 2004
Posts: 4,866
North of Detroit
HemiDart68
master
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master
Joined: Jan 2004
Posts: 4,866
North of Detroit
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dont think you will need a 50/50 ratio but splashing it never hurts. Detonation is one of the worst things to do to a race motor, so a little splash of the good stuff for added insurance never hurts. 
In God we trust, all others pay cash.
www.lightnens.com (Home of the world's fastest Paint Job)
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Re: 110 unleaded mix for a 10.25 compression 440?
[Re: The Shocker]
#644530
03/19/10 12:05 PM
03/19/10 12:05 PM
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Joined: Mar 2007
Posts: 3,300
Northern Indiana
Dunnuck Racing
master
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master
Joined: Mar 2007
Posts: 3,300
Northern Indiana
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There are a few of us here that run similar combos.10.3 to 10.7 to 1 440's with Edelbrock heads and run on pump premium. Back to back tests against 110 show no difference. As far as being consistent,some of the winningest cars out here run pump premium,I wouldn't worry about it.Just buy from a reputable station.
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Re: 110 unleaded mix for a 10.25 compression 440?
[Re: Labratt]
#644531
03/19/10 12:16 PM
03/19/10 12:16 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
What are your thoughts on mixing 110 and 93 unleaded at a 50/50 ratio,for a 10.25,Eddy headed 448? Any benefits at all? Thanks for your opinions and/or experiences with trying this!   Randy B. 
Randy I'm sure you will be fine using 93 but its all
about the cam.... LSA and when the intake closes...
do a compression test and see what the pressure is...
most will say that if its below 200psi it should be fine
(maybe closer to 190 psi)
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Re: 110 unleaded mix for a 10.25 compression 440?
[Re: MR_P_BODY]
#644532
03/19/10 02:12 PM
03/19/10 02:12 PM
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Joined: Mar 2008
Posts: 553
Kentucky
clovis
mopar
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mopar
Joined: Mar 2008
Posts: 553
Kentucky
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Wallace Racing has a calculator that will calculate your octane rating for a particular mix. I am currently running 110, on a 11:1 iron head 451, but at $8.50/gallon I am going to investigate trying a mixture which produces a 100-105 finished product. At 50/50 110 to 93 I can get around 102, which I am hoping will suffice. My effective compression is only 9.50, so I am think I should be ok.
'75 Plymouth Duster
Phase I 451 906/590/2-660 10.75/126
Phase II 451 Stage VI/590/1050 9.82/135
Phase III 383 906/Victor-Pump gas 11.30/119
"For by grace you have been saved through faith. And this is not your own doing; it is the gift of God,"
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Re: 110 unleaded mix for a 10.25 compression 440
[Re: Labratt]
#644540
03/20/10 10:05 AM
03/20/10 10:05 AM
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Joined: Feb 2004
Posts: 2,495
Richmond , Virginia
BEEQUIK
top fuel
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top fuel
Joined: Feb 2004
Posts: 2,495
Richmond , Virginia
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Quote:
Thanks,Chris! I do LOVE the smell of "race gas" but I was looking for power enhancement possibilities with the x-tra octane!  BTW...out of curiousity,where did you purchase the Groovy Grape? 
summit has it - $12.95 a bottle.they have fruit punch,strawberry,cotton candy,you name it. I think they should have one named VICTORY. Who doesn't like that smell??
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Re: 110 unleaded mix for a 10.25 compression 440
[Re: Labratt]
#644544
03/20/10 02:34 PM
03/20/10 02:34 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
After thinking about Chris's suggestion of using a fuel additive,plus the fact that my wifey complains about me smelling like a gas can every time I come into the house,after tinkering with the GTX,I ordered a bottle of Cotton Candy from Summit!  I'm not going to tell her!...I'll wait for her to say something!  I'm sure it'll be an improvement!  Randy B.
LOL... so now you'll smell like cotton candy.... I
dont think that will cure the problem Randy... women
(most women) just dont like the smell of engines... LOL
I'm glad my wife met me when I worked in the fuel
lab and ALWAYS smelled like gas.... was funny, she
finally got use to the different gas smells and could
tell if I was working with E-85 or regular gas...
she still cant stand diesel
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Re: 110 unleaded mix for a 10.25 compression 440
[Re: MR_P_BODY]
#644545
03/20/10 03:47 PM
03/20/10 03:47 PM
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Joined: Feb 2004
Posts: 2,495
Richmond , Virginia
BEEQUIK
top fuel
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top fuel
Joined: Feb 2004
Posts: 2,495
Richmond , Virginia
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Quote:
Quote:
After thinking about Chris's suggestion of using a fuel additive,plus the fact that my wifey complains about me smelling like a gas can every time I come into the house,after tinkering with the GTX,I ordered a bottle of Cotton Candy from Summit! I'm not going to tell her!...I'll wait for her to say something! I'm sure it'll be an improvement! Randy B.
LOL... so now you'll smell like cotton candy.... I
dont think that will cure the problem Randy... women
(most women) just dont like the smell of engines... LOL
I'm glad my wife met me when I worked in the fuel
lab and ALWAYS smelled like gas.... was funny, she
finally got use to the different gas smells and could
tell if I was working with E-85 or regular gas...
she still cant stand diesel
Just a little dab behind each ear before you go in the house and its guaranteed to be booty time!!!LOL   
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Re: 110 unleaded mix for a 10.25 compression 440
[Re: Blakcharger440]
#644549
04/01/10 06:00 PM
04/01/10 06:00 PM
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Joined: Jan 2003
Posts: 3,616
Riverside, Ca
G_bob
master
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master
Joined: Jan 2003
Posts: 3,616
Riverside, Ca
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With the closed chamber edelbrocks the .030 over 440 in my challenger is 10.2:1, .040 quench. It runs fine on our 91 octane calif pump swill, but does at times suffer from run-on. I've heard that was a problem with six-pack setups back in the day, and I have the idle solenoid on there, but hasn't helped much.
If I mix a couple of gallons of 110 in there, the run-on goes away.
I used to HAVE to mix in 110 at a 1:5 or 6 ratio when it had the iron 902's on it. It was only 9.8:1 then, but with the open-chamber iron heads, it pinged badly on straight 91.
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Re: 110 unleaded mix for a 10.25 compression 440?
[Re: HemiDart68]
#644550
04/01/10 07:00 PM
04/01/10 07:00 PM
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Joined: Dec 2005
Posts: 1,495
Fort Workin Tx
Day2Runner
pro stock
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pro stock
Joined: Dec 2005
Posts: 1,495
Fort Workin Tx
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Quote:
dont think you will need a 50/50 ratio but splashing it never hurts. Detonation is one of the worst things to do to a race motor, so a little splash of the good stuff for added insurance never hurts.
plus it makes for sweet smellin exhaust
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Re: 110 unleaded mix for a 10.25 compression 440?
[Re: Day2Runner]
#644551
04/01/10 07:31 PM
04/01/10 07:31 PM
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Joined: Dec 2008
Posts: 1,200
UK
602heavy
pro stock
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pro stock
Joined: Dec 2008
Posts: 1,200
UK
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Some race fuels don't mix , you won't hear detonation but it WILL be there , the chamber will decipher the higher octane & could ping on the low stuff , go conservative on the timing & pull the plugs as this will tell you if you need race gas or not , the motor will slow down the more timing you put into it (race fuel) if running optimum for pump gas , the same motor running lower octane will run faster than a motor advanced for higher octane , the piston does'nt like the a/f lit off to far down the hole.
Last edited by 602heavy; 04/01/10 08:05 PM.
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Cotton Candy flavor,eh.... that's what race gas smells like to me! 
LOVE that smell! Randy B 
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