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h22a7+meth questions *searched!

 
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Old 11-06-2009, 02:03 PM
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h22a7+meth questions *searched!

hey all,

so this is whats up I just finished putting my h22a7 back together yesterday now I am looking to run water/meth injection.. I am just testing the waters to see what everyone else thinks.. as it sits bone stock h22a7 direct out of 2002 accord type r.. hooked up with the transmission w/lsd. cons and pros? and what will need to be done and if there are any kits?.. I did some searching but wassnt able to find any good info for me to view but if I did miss a post please point me in the right direction
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Old 11-06-2009, 02:06 PM
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Re: h22a7+meth questions *searched!

I was also thinking of the water meth injection ... I wonder how it runs on the h22 ?
Aem make the kit there's a website that actually has it on sale
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Old 11-06-2009, 02:25 PM
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Re: h22a7+meth questions *searched!

I thought u needed a turbo with the meth injection...... ?
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Old 11-06-2009, 02:29 PM
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Re: h22a7+meth questions *searched!

correct me if i am wrong but I thought you could run it with high compression ratio n/a engine as well?
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Old 11-06-2009, 02:41 PM
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Re: h22a7+meth questions *searched!

nope you don't need to be boosted.
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Old 11-06-2009, 03:03 PM
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Re: h22a7+meth questions *searched!

Pulled this from a google search:

The key that has to be understood about Methanol injection is that it burns in the combustion chamber just like fuel. And this actually requires the rest of the tune to be adjusted accordingly. From what I’ve already experienced, you can’t just add a Methanol mix into the intake charge and expect a substantial gain in HP. In order to really gain from the Methanol injection, you need to add a pretty good amount of methanol, depending on the existing level of power/boost. When this correct amount of methanol is added, it will make your existing Air/Fuel ratio go very, very rich. So then you need to pull fuel from the engine management’s fuel map or normal tune to get it back to the desired A/F while the Methanol is spraying into the engine. Typically what we found is that when the Methanol is flowing you can run slightly leaner than you would have without methanol flowing. So if your booted combo is safe and runs good with a A/F of 11.5, with the Methanol flowing we would run a little leaner in the same application, like 11.8 to 12.00:1 - also adding more timing while the methanol is flowing.

Methanol is also a huge octane booster. We’re not sure exactly how much it raises a typical 93 octane application, but some say as high as 115-120 octane. Not sure about this yet, but it definitely raises the octane substantially from 93 judging from the amount of additional spark we can add to a non-methanol tune. Methanol also lowers the inlet temps quite a bit - as much as 60 - 100+ degrees.

I knew what meth injection was but this sounds pretty freakin sweet. Let me know how this works out for you if you do the project.
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Old 11-06-2009, 05:40 PM
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Re: h22a7+meth questions *searched!

I really want to try this.. considering the h22a7 compression ratio is 10.0-11.0:1(correct me please if I am wrong) I think it will be safe to run with a adjustable FPR.. I need more info I am dead set on doing it.. its just the idea 300 for the kit.. and the damage I could possible do to the engine
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Old 11-06-2009, 05:51 PM
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Re: h22a7+meth questions *searched!

Eh... I would say a FPR isnt going to do what you need it to. Running methanol injection is only going to be done at full throttle. The problem is a FPR adjusts the fuel injected throughout the whole band from idle to full throttle...


Next, the big advantage of methanol is the ability to run crazy timing. Ignition Timing is great pending you can adjust it appropriately. Back to tunable ECU.

BTW... damage to the engine done by adding methanol is unlikely. The only damage I see possible here is running super lean using a FPR.




Last. I am running methanol injection on my 3rd gen prelude (and will be on my 4th gen sooner or later). Totally worth it if done right, boosted or not.
Lets just saw Im making about 140whp more comfortably on pump gas than I would be otherwise(note I am boosted and running 29psi and 642whp).
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Old 11-06-2009, 06:13 PM
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Re: h22a7+meth questions *searched!

Quote:
Originally Posted by lilbluelude View Post
Eh... I would say a FPR isnt going to do what you need it to. Running methanol injection is only going to be done at full throttle. The problem is a FPR adjusts the fuel injected throughout the whole band from idle to full throttle...


Next, the big advantage of methanol is the ability to run crazy timing. Ignition Timing is great pending you can adjust it appropriately. Back to tunable ECU.

BTW... damage to the engine done by adding methanol is unlikely. The only damage I see possible here is running super lean using a FPR.




Last. I am running methanol injection on my 3rd gen prelude (and will be on my 4th gen sooner or later). Totally worth it if done right, boosted or not.
Lets just saw Im making about 140whp more comfortably on pump gas than I would be otherwise(note I am boosted and running 29psi and 642whp).
that is insane! what kit are you using? I wonder if honddata could get me a tune (granted I need a dyno to get the most precise tuning closest to me is in london...bummer) I am very curious to see how much HP's I would put down.. keeping in mind I do have the Accord Type R setup.. ECU, everything.. It has alot more get up and go then my old h22a5 its crazy to see the differences in design from the A4 to the A7 intake manifold and cam durations.. it is a great motor/design
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Old 11-06-2009, 08:49 PM
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Re: h22a7+meth questions *searched!

I dont see the point on a stock motor who's ignition timing is not limited like a high compression motor or a motor with high boost.
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Old 11-06-2009, 09:14 PM
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Re: h22a7+meth questions *searched!

aside from all that explain.. I have a msd setup on the way
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