Just to resurrect an old thread as a few may be interested to know that apparently Mina will be producing F-Type intake tubes.

Can't wait to get home...I have an ITG cold air intake kit to install.

I guess the group buy didn't happen?

 

I just found this thread today also after going to the 1/2 mile event this past weekend - clearly I now need more power. Any updates?

 

 

Where did you get that info from Tel?
Coz Mina have been talking about the F-Type intake for at least a year now and still no progress AFAIK.

 

I dropped them an email back at the beginning of the month and they said that they had been in development and should be ready in about a months time

To my mind it should make quite a difference audio wise as you essentially delete the low frequency resonators that are there to suppress induction roar. Who knows...?

 

Yeah...it was supposed to be done "in about a month" 12 months ago.

 

 

No I haven't fitted this but it sounds interesting (no pun intended!).
They don't say if it's the same kit for V6 and V8 but it probably is.
Also, David Appleby Engineering is the UK/Euro rep for Velocity AP so it should be possible to get the kit direct from VAP, maybe Stuart can chime in and let us know.
Last but not least, they don't say if it comes with fitting instructions. I renewed the air filters a couple of weeks ago and it's a simple job if labour intensive mainly because the front undertray needs to come off. It looks to me that swapping out those tubes/pipes is a bit more involved as they did not look all that easy to get at to me being up above the air boxes, maybe the wheel well lining and/or the front bumper has to come off to get to them.

 

 

I've had a poke around in the engine bay and a squiz at the intake tubes and although you can see the tops of the "whine inhibitor tubes" and the clamps from up top there is no room to get in there so I really doubt they can be removed that way. At that's just the top connections/clamps, the bottom connections and clamps would be even harder to access from the top. Removing the front bumper would be no help at all as there would still be heaps of cross bracing and radiator structure in the way.
But it looks to me that both top and bottom clamps (and the tube) could be accessed by removing the wheels and the wheel arch liners (and of course the undertray), so that's my bet as to how it is done. Not hard but time consuming, like pretty much everything structural/mechanical on modern Jags!

Edit - forgot to add:
It intrigues me how replacing the "whine inhibitor" tubes with straight tubing increases the SC whine.
Those tubes should have zero effect on the SC so how can they effect SC whine, instead IMHO they reduce/muffle intake roar (possibly via a Helmholtz effect, although the stock induction tubes just before the SC intake already have three Helmholtz resonators on them), so I would think the increased noise you hear by fitting this kit is intake roar not SC whine. Many years ago I modified the intake systems on my cars (all NA) and it was easy to dramatically increase the intake roar, and the easiest way of all was to completely remove the intake snorkel(s).
Or I have I got it all wrong and those tubes somehow do effect SC whine?
If so, how?

 

 

Makes sense.
But I'm still confused as to what causes SC whine.
I always thought it was the mechanical noise of the SC rotors whirring around at huge revs and not the intake air resonating somehow. In my experience intake resonance is a quite deep "booming" noise and nothing at all like the high pitched scream of SC whine.
Eaton explain that they dramatically reduced the SC whine on the TVS series compared to the old M series, but nowhere can I find an explanation of exactly what they did to do so.
Then, to complicate matters more, the VAP "with larger crank pulley" tune increases the SC whine bigly by altering the timing and effect of the bypass valve.
One of the differences between the TVS and M series is the design and operation of that bypass valve.
So many questions, so few answers!

 

The M series from Eaton are three lobe designs each lobe has a 60° twist.

The TVS series at least the R version used by Jaguar use four lobes with a twist of 160° . Intake and outlet are different and air management bypass valve that on later versions is controlled electronically by ECU.

They are intended to be more efficient, they operate at higher maximum rpm from 18000 to 24000rpm depending on model with pressure ratio up to 2.5 .

My particular fantasy supercharger upgrade would involve a custom TVS R2650 for seriously increased air flow over standard TVS R1900 fitted to V8 F type.