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Old 09-22-2006, 02:08 AM   #1
shaolin_racer
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Default Methanol Injection + AVC-R

Sorry if this is a noob question. But long story short, I used and AVC-R to control boost creep in my 04 WRX + VF34 and it worked very well. I now have The same set up from my WRX on my 04 STi.

I was wondering if any one has considered the possibility of using the scramble boost feature on the AVC-R along with methanol injection. Does seem like a good idea? I can't think of any cons at this time, but I am still learning alot about this car. Any info would be greatly appreciated.

Thanks in advance.
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Old 09-22-2006, 05:37 AM   #2
hippy
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Boost controllers don't control boost creep. That's the whole idea behind boost creep. It's a mechanical problem that can't be solved with a boost controller.

Does the avcr control boost dependent on rpm? I know it's not really a big deal, but being able to control the boost via rpm(and throttle position) can help you put your turbo run in the efficiency range you want at a given rpm. Not that the avcr isn't a good boost controller, and I'm sure it would work fine. Your setup just might run more efficiently,and you might get a lot more power in certain rpm ranges if you have the ability to change the boost based on rpm.

peace
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Old 09-22-2006, 08:36 AM   #3
xcntrk75
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Yes you can configure boost control via engine RPM with the AVCR; but no TPS based boost control (which is my biggest gripe with the product). Also, the AVCR system includes a fantastic “blocker-style” solenoid valve which greatly outperforms the stock bleeder system. That said, it does/can help to resolve the common problems associated with boost control over the OEM system such as creep, redline taper, and helps to speed spool-up.

That said however, the AVCR is an entirely standalone system which isn’t communicating with your EM platform. So attempting to use the “scramble” feature could be neat, by increasing boost pressure and potentially enabling a meth injection system for a given period of time, but there would be no way to tune for the occurrence of the meth injection as your EM wouldn’t know when the “scramble” switch was in use.

<-AVC-R + Ethanol Injection user
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Old 09-23-2006, 05:36 AM   #4
benw
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Quote:
Originally Posted by hippy View Post
Boost controllers don't control boost creep. That's the whole idea behind boost creep. It's a mechanical problem that can't be solved with a boost controller.
Not always.

http://www.kineticmotive.com/node/16
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Old 09-23-2006, 05:08 PM   #5
hippy
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Notice how it says perceived.....<edit>

peace

Last edited by hippy; 09-23-2006 at 09:29 PM.
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Old 09-23-2006, 06:20 PM   #6
flycaster
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Quote:
Originally Posted by shaolin_racer View Post
I was wondering if any one has considered the possibility of using the scramble boost feature on the AVC-R along with methanol injection. Does seem like a good idea?
Not really. Assuming you have been properly tuned for the injection, what you really need are two separate boost maps, one with and one without methanol.

An actual map, that has been tuned specifically for the application, is much safer than using "scramble boost." All SB does is to momentarily turn up the global duty cycle percentages by whatever factor you enter in. In this regard, it is identical to Start Duty, except it is not gear dependant. Turn it up just a little too much, and you will seriously overboost in the taller gears. Baaad.
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Old 09-24-2006, 02:39 AM   #7
benw
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Quote:
Originally Posted by hippy View Post
Notice how it says perceived.....<edit>

peace
uh yeah. perceived as in people thinking it's a mechanical condition. did you read the article? it's from a rather credible source.
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Old 09-24-2006, 05:38 AM   #8
hippy
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It doesn't matter if I read the article, just the title, or neither(no offense). I was talking about boost creep, the article was not.

peace

Last edited by hippy; 09-24-2006 at 01:54 PM.
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