Methonal on carbed LT1
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Joined: Feb 2003
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From: boothwyn, PA
Methonal on carbed LT1
i hae a pretty serious lt1 that is making roughly 700hp at the crank.... its 13.1 compression and has a dominator on it.... i was wondering if anyone has ever done a methonal set up on a carbed N/A set up?.... i would like to drive this on the street alittle and it would be nice if i could use some methonal...
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Joined: Nov 2005
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Street driving and alcohol will not work....If you do try it you will be stopping quite a bit to refuel and will be doing quite a bit of oil changes...You will burn roughly 1.7 times the amount of methanol over gasonline.....That motor wouldnt last long at all if you did all this...
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Joined: Feb 2003
Posts: 443
From: boothwyn, PA
Thread Starter
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Posts: 443
From: boothwyn, PA
well guys i was doing some thinking and i think i realized it cant be done..... they use it on FI cars b/c the boost actually pulls the methonal into the intake under full throttle.... and theres not really a way for me to do that.... and if i wanna use pump gas being 13.1 it wont run good low end..... so i guess ill just have to run 110 all day long haha... oh well... its only money right?
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From: boothwyn, PA
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From: Baton Rouge, LA, USA
This is not a good idea.
You have to have a carb set up for either one. The jetting is way different, so you can't just change out the fuel.
You can't mix Methanol and pump gas because they are not soluble.
You think Methanol is cheaper than race gas, and it is, but you burn twice as much.
Methanol is non-lubricating so your rings wear out quicker.
Methanol condenses alot of water in the bottom end. Remove the valvecovers after some dyno pulls and the amount of water condensation will scare you.
Why would you raise the timing when adding Meth to forced induction? Aside from the obvious reason - to get more power. What makes you think that you have to run more timing?
The Methanol setups on forced induction cars like mine, have a MAP sensor, controller, pump, and reservoir. The controller turns the pump on at a pre-set boost level and ramps it up with boost in most modern systems. You don't have nearly enough control to drive it around. It's a 2 dimensional system, so to speak. All it reads is manifold pressure and supplies an amount of Methanol based on that. For part throttle driving, you need a 3 dimensional system that reads rpm also. This is how a fuel injection system works.
Mike
You have to have a carb set up for either one. The jetting is way different, so you can't just change out the fuel.
You can't mix Methanol and pump gas because they are not soluble.
You think Methanol is cheaper than race gas, and it is, but you burn twice as much.
Methanol is non-lubricating so your rings wear out quicker.
Methanol condenses alot of water in the bottom end. Remove the valvecovers after some dyno pulls and the amount of water condensation will scare you.
Why would you raise the timing when adding Meth to forced induction? Aside from the obvious reason - to get more power. What makes you think that you have to run more timing?
The Methanol setups on forced induction cars like mine, have a MAP sensor, controller, pump, and reservoir. The controller turns the pump on at a pre-set boost level and ramps it up with boost in most modern systems. You don't have nearly enough control to drive it around. It's a 2 dimensional system, so to speak. All it reads is manifold pressure and supplies an amount of Methanol based on that. For part throttle driving, you need a 3 dimensional system that reads rpm also. This is how a fuel injection system works.
Mike
Thread Starter
Registered User
Joined: Feb 2003
Posts: 443
From: boothwyn, PA
This is not a good idea.
You have to have a carb set up for either one. The jetting is way different, so you can't just change out the fuel.
You can't mix Methanol and pump gas because they are not soluble.
You think Methanol is cheaper than race gas, and it is, but you burn twice as much.
Methanol is non-lubricating so your rings wear out quicker.
Methanol condenses alot of water in the bottom end. Remove the valvecovers after some dyno pulls and the amount of water condensation will scare you.
Why would you raise the timing when adding Meth to forced induction? Aside from the obvious reason - to get more power. What makes you think that you have to run more timing?
The Methanol setups on forced induction cars like mine, have a MAP sensor, controller, pump, and reservoir. The controller turns the pump on at a pre-set boost level and ramps it up with boost in most modern systems. You don't have nearly enough control to drive it around. It's a 2 dimensional system, so to speak. All it reads is manifold pressure and supplies an amount of Methanol based on that. For part throttle driving, you need a 3 dimensional system that reads rpm also. This is how a fuel injection system works.
Mike
You have to have a carb set up for either one. The jetting is way different, so you can't just change out the fuel.
You can't mix Methanol and pump gas because they are not soluble.
You think Methanol is cheaper than race gas, and it is, but you burn twice as much.
Methanol is non-lubricating so your rings wear out quicker.
Methanol condenses alot of water in the bottom end. Remove the valvecovers after some dyno pulls and the amount of water condensation will scare you.
Why would you raise the timing when adding Meth to forced induction? Aside from the obvious reason - to get more power. What makes you think that you have to run more timing?
The Methanol setups on forced induction cars like mine, have a MAP sensor, controller, pump, and reservoir. The controller turns the pump on at a pre-set boost level and ramps it up with boost in most modern systems. You don't have nearly enough control to drive it around. It's a 2 dimensional system, so to speak. All it reads is manifold pressure and supplies an amount of Methanol based on that. For part throttle driving, you need a 3 dimensional system that reads rpm also. This is how a fuel injection system works.
Mike
i dont know what you guys dont understand.... im not trying to run straight methonal so i dont need to change any jets in my carb..... i completly understand how all that works....
and im not talking about mixing them as in like in the tank......
im just simply talking about putting methonal on the car just like anyone would do with a boosted car and i realize that it is boost controlled and all that...... and the reason alot of people put methonal on boosted cars is so they can run pump gas with high boost...... there would be no reason to put it on other wise.....
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From: boothwyn, PA
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From: Kilgore TX 75662
Fran, if you can keep your foot out of it (HAHAHAHAHA!!!! Yeah right!) then Premium pump gas should be fine for street driving.
I have a few thoughts to share with you.
1. Go http://www.e85refueling.com/locations.php?state=paPennsylvania&PHPSESSID=2c9eb 1d52f738fe47a2ce5ed9a8257ba"]here and see if E85 is available near you. It has around 105 octane and costs around the same as premium.
2. If you want to run Methanol, it sounds like you're wanting to run a seperate fuel system to go with a pump gas system. What kind of nitrous system are you running? You could just add the Meth only when you hit the juice. Or run a fuel only side hooked up to a WOT switch that is on all the time.
3. If you still have that huge cam in there, then check to see what your Dynamic Compression Ratio is. Do a search for "Pat Kelley calculator" and find the program. Remember to put in the valve opening duration and not the .050.
I have a few thoughts to share with you.
1. Go http://www.e85refueling.com/locations.php?state=paPennsylvania&PHPSESSID=2c9eb 1d52f738fe47a2ce5ed9a8257ba"]here and see if E85 is available near you. It has around 105 octane and costs around the same as premium.
2. If you want to run Methanol, it sounds like you're wanting to run a seperate fuel system to go with a pump gas system. What kind of nitrous system are you running? You could just add the Meth only when you hit the juice. Or run a fuel only side hooked up to a WOT switch that is on all the time.
3. If you still have that huge cam in there, then check to see what your Dynamic Compression Ratio is. Do a search for "Pat Kelley calculator" and find the program. Remember to put in the valve opening duration and not the .050.
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Joined: Jun 2005
Posts: 626
From: MN
Fran, if you can keep your foot out of it (HAHAHAHAHA!!!! Yeah right!) then Premium pump gas should be fine for street driving.
I have a few thoughts to share with you.
1. Go http://www.e85refueling.com/locations.php?state=paPennsylvania&PHPSESSID=2c9eb 1d52f738fe47a2ce5ed9a8257ba"]here and see if E85 is available near you. It has around 105 octane and costs around the same as premium.
I have a few thoughts to share with you.
1. Go http://www.e85refueling.com/locations.php?state=paPennsylvania&PHPSESSID=2c9eb 1d52f738fe47a2ce5ed9a8257ba"]here and see if E85 is available near you. It has around 105 octane and costs around the same as premium.
One thing to think about with e85 is the fact that with a carb you need to replace all the gaskets and such to be alcohol compatible. along with your fuel pump and all the lines. E85 will eat rubber and gaskets that are just as friendly. So you would have to upgrade your system to be alcohol compatible.
Also e85 is cheaper than regular gas by about 25 cents.. you just lose like 2 to 3 mpg.
(Just looked where you were and I am not sure on the price. would be pretty odd that it is the same price as premium though.
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From: Baton Rouge, LA, USA