Holy thread revival!.
I am doing this mod at the moment, i have collected all the parts and ready for install.
I am just a bit baffled by these baffles. inside the shroud. Surely as long as the car is moving forward there would always be positive air pressure of some sort on both sides unless traveling sideways (yo). Am i not right in thinking the air would take the path of least resistance naturally, therefore as long as there was some positive air pressure coming up the ducting the air from both sides would just get forced through the cooler even if the pressure difference between the two sides was unequal.
I did the internal baffles after Gav mentioned that a few of the race boys had done it and that it made a real diference. Didn’t take long, or really cost anything to do, so I thought I may as well.
I assume you are using the 211 air box and not connecting the roof scoop?
Yes, you are right, it will come out of the back of the intercooler but it seems to make sense to channel it in the right direction rather than the 2 airstreams hitting each other head on. Test as much as you like, but some decisions come down to common sense.
[quote=661]I assume you are using the 211 air box and not connecting the roof scoop?
Yes, you are right, it will come out of the back of the intercooler but it seems to make sense to channel it in the right direction rather than the 2 airstreams hitting each other head on. Test as much as you like, but some decisions come down to common sense.[/quote]
So do you agree that with roof scoop still connected: 3 compartments would be best
once side pods are connected too?
I would think so, the more air flow the better
In my testing the 211 airbox with 4" pipes going to both sides was the best solution and I have tried all the different connotations.
Are you able to post a picture of your baffle handy work inside the shroud?
Fook me, I just had to check the iPhone for the date. For a minute there I thought I had fallen to sleep and woken up in 2009.
I am all for directing the air flow but if it cant go back down the ducting because of the positive pressure then it surely doesn’t need a helping hand. I could be talking shit though as i haven’t got a clue about air flow and pressure. If however i do it because other people do, then i might as well by some rim protectors and some fluffy dice.
Some would say being an S2 owner you might need a rim protector anyway.
[quote=SeanB]In my testing the 211 airbox with 4" pipes going to both sides was the best solution and I have tried all the different connotations.
[/quote]
To be fair , you didn’t test a 3 way inlet with the 4" inlets that the 211 box allows ( plus the the roof scoop too)
As for the question about directing the flow. It’s got to be small percentages, but hey, a job worth doing…
[quote=Top cat]I am all for directing the air flow but if it cant go back down the ducting because of the positive pressure then it surely doesn’t need a helping hand. I could be talking shit though as i haven’t got a clue about air flow and pressure. If however i do it because other people do, then i might as well by some rim protectors and some fluffy dice.
[/quote]
air doesnt like abrupt 90 degree changes of direction and if subjected to them it will not flow smoothly and break up into turbulence and destroy it’s velocity.
So whilst it will still be at positive pressure infront of the intercooler it wont ‘flow Backwards’…
BUT i can see there are substantial advantages to providing smooth baffles to change its direction through this 90 degrees.
Think of a well designed exhaust manifold such as 2bular … There are no 90 degree abrupt ‘corners’ are there?
That is a COOL looking set of headers mate!
Jim is a very talented chappy !
Indeed Pete ,
As we both know…Jim understands his game.
You…understand your game …
Join both sectors of expertise together and produce magic…
My 4 inch ducting arrived this week. I had to test it straight away on the 211 shroud as it looks mahoosive, but it does indeed fit. I have no idea how i am going to get the ducting from the shroud to the pods. I just took a quick look on the drivers side and i cant see me getting it down their.
The only inlets i could find to go on pod end of the 4 inch ducting was these.
http://www.sfxperformance.com/parts/SPT9787.htm#
They are arriving from the States via snail mail soon. I have a feeling they are going to be a tight fit too.
Yea … the 3 inch looked huge when I got it…
I’m sure you’ll thread it through various apertures tho.
All in a good cause
Jeez 4inch , have you got wide side pods ?
Yes! i have some Reverie jobbies. I am slightly worried about the intake getting enough air to it after fitting. I am hoping to somehow manufacture some ducting from the now defunct roof scoop down to the intake but i cant see me being able to do that at the moment.
i remember talking to Lanzante about this and in there testing they said that anything below the wing mirrors and the air is warmer . you could take the 4inch pipes direct into the roof scoop duct before the flexi section and keep your standard intercooler shroud on.