meth
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On The Tree
Joined: Oct 2006
Posts: 130
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meth i just got done building up my 96 z28, heads, cam, vortech s/c, ect. anyway i was thinking of methanol injection, i just dont want to spend the money if i dont have to. anyone familar with building a setup? if so what parts would i need? thanks
Tank, low fuel level sensor if you want one, (or just use your windshield washer res), pump rated for methanol use, fuel line, jets, and the controller that you choose, progressive or on all at once. There is also progressive that is programmable with a computer, they are pretty cool. And of course some wire and a fuse. And a led for the fuel level being low if your not using the washer tank. Most people start with about a m15 jet at least, and work up from there. I have never ever heard of a meth backfire. I have heard of a n20 backfire though. Dan
TECH Resident
Joined: Jan 2004
Posts: 832
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From: Castro Valley, CA
Yah, I agree with Boone... maybe you're thinking of the nitrous/intake explosion thing? I haven't heard of methanol backfires either.
As for the methanol kit, I highly recommend the Alkycontrol. Very responsive (boost referenced) and a perfect way to add octane and reduce IATs to 30+ F below ambient:
For the DIY approach, I'd see if you can find the right kind of pump and price it... that will tell you whether you're going to save any meaningful $$ by designing and building your own. The main point is to ensure that all components will be resistant to methanol as a solvent. Good luck.
As for the methanol kit, I highly recommend the Alkycontrol. Very responsive (boost referenced) and a perfect way to add octane and reduce IATs to 30+ F below ambient:
For the DIY approach, I'd see if you can find the right kind of pump and price it... that will tell you whether you're going to save any meaningful $$ by designing and building your own. The main point is to ensure that all components will be resistant to methanol as a solvent. Good luck.
Your low end and mid range will probably run cleaner and have more power. Especially the mid range. As you can imagine, when it comes on all at once it can hesitate or not run as clean as progressive, showing you how much it would benefit if it was perfectly tuned all the way through the power band, progressively. The tuner can tune around the flood of it coming on all at once at low rpm, but some of them just settle for close enough, and some don't, but even so its still not optimal. Progressive is better.
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oh my bad, maybe it was a n20 backfire.. i remember seeing a block (ls2) somewhere for sale with a chip in it, from a supposed meth backfire...w/e! Lots of info on this page for those of us who are new to it!
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Staging Lane
Joined: Aug 2006
Posts: 81
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My suggestion is the Snow Boost Cooler reference with MAF controller. This allows the meth to come in progressively based on voltage and when tuning is done along with this type of controller you get the maximum in both power and driveability. Hope this helps some.
What are the downsides to running meth? I know if a pump fals or you run out of meth you can risk hurting the motor. But should you change the oil more often, does it cause any accelerated wear and tear on say the intake o-rings, or anything like that?
TECH Resident
Joined: Jan 2004
Posts: 832
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From: Castro Valley, CA
Your low end and mid range will probably run cleaner and have more power. Especially the mid range.
The main point for my setup was to spool quickly and get an early, wide torque curve... and I think the methanol helped to accomplish that.
Last edited by RW99; Dec 12, 2006 at 10:44 PM.
On The Tree
Joined: Aug 2005
Posts: 152
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From: St. Petersburg, Florida
Thanks RW99,
Anything can be done cheaply. This injection stuff you dont want to scimp on. It is a fuel and should be treated as a fuel system. Just like you wouldnt use garden hose on your fuel injection pump. And if tuned aggressively and your system fails, you can/will hurt your engine. Just like if your fuel pump failed at WOT and leaned your motor out.. you'll blow holes through your pistons.
My suggestion, use the search feature. Type the word METH and there are other forums using the same/similar engines. Corvette forum is one, turbo buick is another. See what they are doing, what power is being made, how long they've been doing it, etc.
The MAF systems have the problem of the sensor getting pegged. Once your MAF stops reading, no additional alky is being put into the motor. On a 300 RWHP car.. not an issue. On a 600+RWHP car.. then it becomes an issue. This is why MAP systems are used, as your boost also climbs with RPM's.. so you have an increase in delivery.
Only cars I know off can benefit from MAF are roots blower type setups. Since boost is unlinear. Like a 2003 Cobra.
There is sooo much mis-information on this subject. I dont even want to get into the water/windshield washer fluid deal
Anything can be done cheaply. This injection stuff you dont want to scimp on. It is a fuel and should be treated as a fuel system. Just like you wouldnt use garden hose on your fuel injection pump. And if tuned aggressively and your system fails, you can/will hurt your engine. Just like if your fuel pump failed at WOT and leaned your motor out.. you'll blow holes through your pistons.
My suggestion, use the search feature. Type the word METH and there are other forums using the same/similar engines. Corvette forum is one, turbo buick is another. See what they are doing, what power is being made, how long they've been doing it, etc.
The MAF systems have the problem of the sensor getting pegged. Once your MAF stops reading, no additional alky is being put into the motor. On a 300 RWHP car.. not an issue. On a 600+RWHP car.. then it becomes an issue. This is why MAP systems are used, as your boost also climbs with RPM's.. so you have an increase in delivery.
Only cars I know off can benefit from MAF are roots blower type setups. Since boost is unlinear. Like a 2003 Cobra.
There is sooo much mis-information on this subject. I dont even want to get into the water/windshield washer fluid deal