CR140 Flapper Valve Performance...

[storx]

I was reading on the Skoda forums and how they were talking about how they adjust the settings of there flapper valve for better performance even on the stock hardware.. Have we looked into this in our country?? I ask because it interests me.. One guy said when you unplug it, it is defaulted open and the entire engine and exhaust sounds change...

OPEN

CLOSED

 

[Rub87]

its anyway open at any reaonable amount of load..

 

[2STROKECORKY]

I have removed this system for someone, the result is better throttle response, 7-9mpg increase, quieter engine under load, better use of rev range, more power

 

[Nuttendiesel]

I have removed this system for someone, the result is better throttle response, 7-9mpg increase, quieter engine under load, better use of rev range, more power

That seems like an unbelievable gain for this mod, why has this not been discussed here before?

 

[Jayg]

I have removed this system for someone, the result is better throttle response, 7-9mpg increase, quieter engine under load, better use of rev range, more power

How are you proving that claim? Is that what they told you after they left?

 

[2STROKECORKY]

We did a before and after comparison based on the same roads at roughly the same traffic volume, total drive each way was 40 miles, and since removing the flaps and bar 7 weeks ago the car has been driven the same roads every day as its his everyday car. He has kept his RECIEPTS and only runs full tanks from full to light on and refills, he has run 2 full tanks and the comparison from previous refills to now he states is roughly 8mpg increase average

 

[2STROKECORKY]

That seems like an unbelievable gain for this mod, why has this not been discussed here before?

It's discussed quite a lot in the uk, I've also given a chap in the us details on how to do it.

I've also done it on my own 2006 golf, with better results and proven dyno printout gains.

 

[Rub87]

realy hard to believe you would see anything on a dyno that is bigger than the tolerance of the dyno itself, at least on a non remapped car. the stock tune is so lean that extra air will not make more power.

maybe removing the flap gives a tad more airflow at high rpm. but during very light load it improves combustion stabilty and thus the bsfc of the engine. at 60 mph offcourse it will not help anymore

 

[2STROKECORKY]

I get better flow right through, due to removing the restrictive flap and bar, it actually amazed me at how much of the total inlet area is taken up by this system,

Obviously under normal cruising round town at low rpm, there probably is a marginal change if any , but I certainly have noticed a jump in mpg, and power delivery when the right pedal is pushed

 

[Powerstroke GONE TDI]

Let's stop talking about it and someone tell me how to do it and I'll test it lol

Sent from a Cummins plant, driving a TDI, wishing it was a Powerstroke

 

[2STROKECORKY]

PM me your email address and I will send you all the info you need

 

[Jeffbucc]

I'm also very interested in this as well, let me know what we find out.

 

[DZLmk6]

PM me your email address and I will send you all the info you need

PM'ed !

 

[IT_LBS2]

PM me your email address and I will send you all the info you need

Pmed as well.

 

[DZLmk6]

Any more info about this from anyone?

 

[engineered2win]

What faults are thrown with the intake flaps removed? I'd be interested if the engine derates or runs in some sort of protection mode. If it were to trigger a no EGR map, that would be awesome and I could see that significantly increasing fuel economy due to greater engine efficiency.

 

[DZLmk6]

No one seems to want to give anymore info about this

 

[storx]

I'm looking into it...just been super busy with need school

 

[2STROKECORKY]

Apologies for not getting back to the several people PM, ing me their email address, as explained to the first 3 people I had to go away quickly to deal with a familly burial

I will email you all the info over the weekend

 

[DieselburnerA6]

I've also done it on my own 2006 golf, with better results and proven dyno printout gains.

So PD engine have them too?

 

[storx]

I believe cr engines came out in 2006 in Europe

 

[2STROKECORKY]

All emails have been sent out

 

[SuperAdellic]

So PD engine have them too?

Yes, at least the BEW does. JFettig talks about how to remove them in his thread about making a custom intake.

 

[LNXGUY]

Didn't get an email, PM'd you last week about it.

 

[DieselburnerA6]

Yes, at least the BEW does. JFettig talks about how to remove them in his thread about making a custom intake.

Interesting, are they controled by vacuum? What about BLB engine?

 

[SuperAdellic]

Interesting, are they controled by vacuum? What about BLB engine?

I don't know the answer to either of those questions.

 

[2STROKECORKY]

Early ones are vacuum , late ones are electronic

 

[DieselburnerA6]

Early ones are vacuum , late ones are electronic

Does the BLB engine have them???

 

[DZLmk6]

Thanks for the Info 2STROKECORKY ! One question . Did you keep the Flap motor on and plugged in after the mod so it won't throw any codes? Or is it okay to keep it off?

 

[hymato]

Can some one please forward me this PM please.