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do I need BOTH MAP and MAF w/alky?!

 
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Old Sep 21, 2005 | 07:17 PM
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From: Indy
Question do I need BOTH MAP and MAF w/alky?!

Maybe this is why I cant get my alky kit to work. Do I need both MAP sensor (aftermarket bolt-on),while I still use the MAF sensor? Or is this setup only for the stand alones? or is this simply a dumb question? Thanks in advance.
Old Sep 21, 2005 | 07:42 PM
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From: Tennessee, USA
Apparantly, the Xede can generate a fake (simulated) MAP signal. You could feed that to the water/meth injection system instead of a real MAP sensor.

I don't think this has been discussed in detail yet on the forums. I could think of a couple of different ways of doing this, but as I've never run any kind of supplemental injection system, I'd rather no speculate.

Vishnu?

EDIT: a simulated MAP reading could concievably used for other things as well, so I'm interested in this too. Not long ago, there was promise of closed loop boost control without a MAP sensor.

d

Last edited by donour; Sep 21, 2005 at 07:45 PM.
Old Sep 21, 2005 | 07:51 PM
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The alkycontrol kit requires a MAP sensor input. I'm a little surprised that you aren't aware of that since that's what you have. AMS sells the kit both with and w/o the sensor (I think because some people already have a MAP sensor with their standalone, etc.). It's only a $30 or so difference. I wouldn't want a simulated MAP signal driving my alky kit. One slip up and the alky won't be metered properly for your actual real life boost level.
Old Sep 21, 2005 | 07:55 PM
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Originally Posted by EVO8LTW
I wouldn't want a simulated MAP signal driving my alky kit. One slip up and the alky won't be metered properly for your actual real life boost level.
A very important concern (and the first thing I thought of when I heard of doing such a thing). However, Vishnu claims (or at least reports) that it works very well.

Remember this oldie, but goldie?

https://www.evolutionm.net/forums/sh...methanol+SMART

d
Old Sep 22, 2005 | 03:11 AM
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Thanks guys, but I am still at a loss. are you saying I Need to have the MAP sensor connected? the alky seems to be kicking on at VACCUUM, not boost. Have someone troubleshooting it. A friend came over last night with the SMC (bushur kit) and showed it to me. I noticed he didnt have a MAP sensor with his, like I did. He told me its because he still was using his stock MAF sensor. I am confused.
Old Sep 22, 2005 | 03:40 AM
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Originally Posted by smokedmustang
Thanks guys, but I am still at a loss. are you saying I Need to have the MAP sensor connected? the alky seems to be kicking on at VACCUUM, not boost. Have someone troubleshooting it. A friend came over last night with the SMC (bushur kit) and showed it to me. I noticed he didnt have a MAP sensor with his, like I did. He told me its because he still was using his stock MAF sensor. I am confused.
I believe the SMC controller has an integrated MAP sensor. That's why you need to hook a vacuum hose up to the unit. I think you ought to reach out to either AMS (where I presume you got the kit) or Julio (who is always happy to answer questions about his kits).
Old Sep 22, 2005 | 03:44 AM
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Originally Posted by EVO8LTW
I believe the SMC controller has an integrated MAP sensor. That's why you need to hook a vacuum hose up to the unit. I think you ought to reach out to either AMS (where I presume you got the kit) or Julio (who is always happy to answer questions about his kits).
Thanks alot EVO8LTW, I can always count on a dependable answer from you, this early in the morning!
Old Sep 22, 2005 | 04:14 AM
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Originally Posted by smokedmustang
Thanks alot EVO8LTW, I can always count on a dependable answer from you, this early in the morning!

Kev,

Correct the SMC kit has a built in map sensor. You will definitely need to keep your MAF sensor. the kit should kick on at 7 psi and ramping up to 22 etc. So in principal you have hardly any pressure at the 7 psi and full at your target boost.
Old Sep 22, 2005 | 04:18 AM
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From: La Isla Del Encanto
Originally Posted by EVO8LTW
The alkycontrol kit requires a MAP sensor input. I'm a little surprised that you aren't aware of that since that's what you have. AMS sells the kit both with and w/o the sensor (I think because some people already have a MAP sensor with their standalone, etc.). It's only a $30 or so difference. I wouldn't want a simulated MAP signal driving my alky kit. One slip up and the alky won't be metered properly for your actual real life boost level.
That is correct the ones without a map sensor are for using with any type of standalone as you can tap into theirs.
Old Sep 22, 2005 | 05:39 AM
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Well, Kev, atleast you found the problem....

Just call AMS and get a MAP sensor....
Old Sep 22, 2005 | 06:00 AM
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Thanks guys, I did get the correct MAP sensor, from Julio. At least he gave me the correct number. Should have the car "scorching" and belching flames out the side pipe by this time next week! cant wait! This by the way will be the 3rd MAP sensor I put in, either the others were junk, or it is still wired wrong. will let you know!
Old Sep 22, 2005 | 06:45 AM
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From: GA
damn, man, you car is giving you fits.

i need to get mine on the dyno, BADLY. but, i need some money badly.

speaking of alky injection, i have a question myself.

I just went back to the stock Upper IC pipe. Now, this means i had to move my alky nozzle back to the metal piping of the stock system, which leaves about 10" of rubber hose between my nozzle and the TB...not to mention a hard left hand turn. Now, on my old upper IC pipe, if i held it at 3k and hit the 'test' button on the alky controller the car would stumble as it should.....with the stock piping, i have to be at 5k to get t his stumble....and even then its a very slight stumble.

Im thinking this is causing me problems. I went back to the stock piping because the pipe i had wouldn't allow me to run the stock intake....

so, my question is, do you guys think its almost impossible for the alky to get into the motor being sprayed so far from the TB and having to make that 90* turn? Is it possible to install the jet into the rubber part of the plumbing, or would it leak?

anyone got a stock upper IC pipe i can get? i just need the metal section that starts around the air box and the soft pipe that attaches it to the throttle body. Id like to do some testing!

-Jeff-
Old Sep 22, 2005 | 09:23 AM
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[if i held it at 3k and hit the 'test' button on the alky controller the car would stumble as it should..... So thats what that button is for! when do I hit it?
Old Sep 22, 2005 | 09:32 AM
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From: GA
we have different kits...i don't know jack about the AMS kit.

do you have your stock upper IC pipe you can part with Kevin? I need the top half of it for testing purposes.
Old Sep 22, 2005 | 11:57 AM
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From: La Isla Del Encanto
Originally Posted by smokedmustang
[if i held it at 3k and hit the 'test' button on the alky controller the car would stumble as it should..... So thats what that button is for! when do I hit it?
Kev,

That is just a test purge button just to ensure the pump is spraying before you get on the boost to make sure it works.



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