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Confused - M111 Engine

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Old Oct 29, 2002 | 01:26 AM
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Confused - M111 Engine



If my diagram is correct, it means that the kompressor is placed BEFORE the throttle body, it doesn't sound right !!!

Comments anyone ???

Thanks
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Old Oct 29, 2002 | 11:26 AM
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Your arrows for air flow direction are correct and the supercharger is before the throttle body. With a carburetor, the supercharger had to be after the carb, unless the carb was in an air-tight box. With fuel injection it doesn't matter whether the throttle is before or after the supercharger, so the supercharger, intercooler and plumbing can be placed for a combination of best effect and convenience.
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Old Oct 29, 2002 | 11:49 AM
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Your drawing is almost correct, the air goes from ther airfilter box into a plastic piece that's about a foot long that goes over the bypass valve (front) and s/c intake (rear). The thing above what you are pointing to as the s/c is the bypass valve (similar to a wastegate in a turbo application in that it bleeds off unneeded boost whereas the wastegate bleeds off unneeded exhuast pressure).

Last edited by Buellwinkle; Oct 29, 2002 at 11:51 AM.
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Old Oct 30, 2002 | 05:46 AM
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So, it's more like this... Ummmm...

Lynn, Buellwinkle, is the ByPass Valve mechanically or electronically actuated ???

Thanks guys
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Old Nov 1, 2002 | 11:38 AM
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I believe it is electronicly activated.
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Old Nov 1, 2002 | 12:16 PM
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So the MAF sensor must be calibrated to receive that much air along with the ECU. Am I right?
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Old Nov 2, 2002 | 08:14 AM
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Originally posted by pocholin
So the MAF sensor must be calibrated to receive that much air along with the ECU. Am I right?
Would have to be. The MAF is under full pressure as the s/c blows through it.
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Old Feb 23, 2003 | 04:22 PM
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C230K M111 intake upgrades

Aside from an intercooler upgrade, are there any Air Intake upgrades for the C230K M111 motor?
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Old Feb 23, 2003 | 09:50 PM
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You can get panel filters from K&N and ITG, I've shown 3-4 rwhp gains across the power band, not just at high RPM on two different coupes.

But if you are looking to replumb the entire intake and use a larger maf then you may be on your own, nobody does this that I've heard of but I know it can be done, ReigerSLK did a custom intake all the way from the s/c to the MAF sensor including a customer intercooler, I believe he paid about $1,500.

The other thing you can do to cool the air intake and reduce the chance of detonation is water injection, runs about $500.

And of course there's always NO2 in the intake, nothing perks a car as much for the money.
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Old Feb 24, 2003 | 01:37 AM
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Time for an ABV mod.

This is a little thing the Toyota guys do to their Supercharged MR2, you trick the ABV into staying closed so the boost doesn't bleed back into the intake.

NP
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Old Feb 24, 2003 | 10:02 PM
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Re: Time for an ABV mod.

Originally posted by Nektopoli
This is a little thing the Toyota guys do to their Supercharged MR2, you trick the ABV into staying closed so the boost doesn't bleed back into the intake.

NP
http://www.mr2sc.com/websites/tech/a...trol_valve.htm

Not that I advocate this much less know with any level of certainty the effects of it, here is a quick write up on it.

I was thinking more along the lines of replumbing it. MB uses plastic plumbing. Is there any advantage to utilizing silicone hoses in the plastics place? (write up in Eurotuner on silicone hoses this month, sorry)

Last edited by nukblazi; Feb 24, 2003 at 10:05 PM.
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Old Feb 24, 2003 | 10:14 PM
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Originally posted by Buellwinkle
You can get panel filters from K&N and ITG, I've shown 3-4 rwhp gains across the power band, not just at high RPM on two different coupes.

But if you are looking to replumb the entire intake and use a larger maf then you may be on your own, nobody does this that I've heard of but I know it can be done, ReigerSLK did a custom intake all the way from the s/c to the MAF sensor including a customer intercooler, I believe he paid about $1,500.

The other thing you can do to cool the air intake and reduce the chance of detonation is water injection, runs about $500.

And of course there's always NO2 in the intake, nothing perks a car as much for the money.
Can't find a valid username matching that. I am going to look in the SLK and performace upgrades forums. If I don't post links by then could you Buell?
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Old Feb 24, 2003 | 11:29 PM
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Re: Re: Time for an ABV mod.

Originally posted by nukblazi
http://www.mr2sc.com/websites/tech/a...trol_valve.htm

Not that I advocate this much less know with any level of certainty the effects of it, here is a quick write up on it.

I was thinking more along the lines of replumbing it. MB uses plastic plumbing. Is there any advantage to utilizing silicone hoses in the plastics place? (write up in Eurotuner on silicone hoses this month, sorry)
I was looking at this:
http://www.mr2sc.com/websites/tech/abvlines.htm
It dont by re-routing some vac lines, granted the MR2 is 10 year older then the SLK and is a more simpler design.

NP
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