Forgive me if this has been covered..did a few searches on turbo tube and other close words but didn't find anything covering the VIP tube.

http://www.vipcustomparts.com/minicooperparts.htm

Down around 3/4 of the page there is the Turbo Tube to replace the Turbo muffler. I know what a turbo is and this is the air intake side of the Turbo and into the IC, so am I correct that this tube will just allow more air to flow unrestricted? What about what looks to be a mount point of some sort on the stock tube....should something get fabricated maybe to hold the tube?

so in short....$50?

 

The stock section is a muffler, to quiet the turbo noise.

I don't now why a straight section of tube is $49 though...

 

Cheaper than MINI Madness'.

http://www.mini-madness.com/index.as...ROD&ProdID=294

 

exactly....I'll take the $49 one please.

However, does this actually do anything?

 

You know, I don't think it really would. If you look at the cross-section of the stock unit that MINI Madness has, you can see that it's really not a smaller diameter than the upgraded one. It looks like it at one point, but I think that was creative cutting to get the look they wanted. It appears that the stock unit simply has perforated walls leading to the chamber. This may slightly disturb airflow, but I don't think enough to warrant the cost.

 

what you could do is go to a hardware store get a lil pice of pvc pipe that is the ssame diameter and put that on there if you realy notice any improvement you can go get the boost tube

 

The Madness one has a $86 bracket adding to the cost.

All these BMW engineers busy at work designing restrictions on the car, making it slower = less efficient. Thank god for the great aftermarket coming to our rescue.

Any thought given to the OEM tube being dimensioned so as to provide ample air volume and velocity to the IC and being part of a balanced engine flow that the CPU wants to see on the mapping?

Nah....

 

i dont think the bracket is nessesary... the alta boost tubes are made of silicone and dont have brackets

 

i havent heard of any issues with peopole running the muffler delete.

I think BMW added it in there just to muffle the turbo noise. Not everyone appreciates the turbo spool sound and a loud exhaust... which is why stock, the MINI is not very loud.

 

I get the point you are making but, specifically, what would be the downside of increasing the air flow. (Assuming of course, that it does increase the air flow).

 

If it doesn't increase the flow one is out of money but gains intake noise. You decide.


If it does increase the flow, the CPU will see a departure from the values it likes to see and will go into soft safe mode by retarding timing, lowering boost and enriching the mixture. A less than skilled operator may not detect this unless ECLs come up. Same as an intake hose coming loose.


Itchy subject as the aftermarket makes billions betting on the public's association of increased noise with increased power.

 

My turbo muffler was cracked in a crash, so I figured it was a good time to try something new. Plus the cracked muffler kept throwing a code.
I picked up the VIP (great service).
Seems like a bit more boost (who knows without dyno), and a little noisier, but the noise of run-flats is always louder than the motor on the freeway.
So far I'm happy...

 

Will the scangauge answer this question?

 

It has been addressed in another thread and scottab has both a Scangauge -that he knows how to use- and the Alta tubes installed on his car.

https://www.northamericanmotoring.co...-increase.html

His opinions are respected but it will take properly corrected and documented dyno runs to make me part with my money.

Had a conversation once with a leading aftermarket exhaust systems manufacturer about why he didn't have a proper dynamometer on site and his answer was that it was all about sound benefits and not HP gains. There goes the sate of the aftermarket.

 

"Best advice in this thread and these are the two parts that I will be installing now that the JCW suspension kit is on the car.

Thanks for a sober and factual assessment FugitiveA1."
KH
You said this previously. Why are you changing your mind? This is not a challenge, just a question

 

Proceeding differently myself after the installation of the JCW suspension kit.

I have ordered the JCW air intake -looking maybe to do the entire engine kit- and I am ordering today the Auto Enginuity scan tool which accesses many more sensors than other products.

Curious about your wheel and tire plans, if any at all.

 

On my previous Mini I tried a few different tires and liked the Hankook Ventus RS2. I used them at a couple of day long auto cross schools and a few competitions and several track days. The wheels that I had where Motegi Tracklites. I liked them because they where forged and very light at about 11.5 lbs in 15".
On my new (08) I have been using the Dunlop Direzza Star Specs on stock wheels (17.6 lbs). I have not gone to any track days yet, but my impression is that they are the best I have used. I am also going to get another set of the Motegi Track Lite 1.0s but not sure what size yet. Either 16 or 17. I want to do a track weekend in the spring to see how it feels stock and then think about some suspension tweaks. Adj. camber was the best thing I did on my last Mini with realitively consevative (-1.8) setting Front. Sold it before I played with it very much.

 

Just looked at the Auto Enginuity scan tool. That is very impressive. I recently ordered the Scangauge more as a toy then a tool. I am sure it will give me info overload.

 

Lots of data to discover there. Be sure to check the page on their SpeedTracer and see at the bottom of the page the statement about correction for environmental variables.

http://www.autoenginuity.com/products-speedtracer1.html

Speaking of which thanks for answering the question on the air correction factor, I had stopped following that thread.


Don't want to hijack the OP's thread but Motegi Track Lites are no more. Tire Rack had the last one (wheel) for sometime and now none. I called the importer -American Racing- and was told that the Track Lite will no longer be imported. Let me know if you find any.

 

I did find some. They are listed for sale, in many sizes, on the web site. Tomorrow, I will call for confirmation of availability, and order if supply is low. I will let you know if they are still there.

 

Thank you and good luck.