ITG Megaflow JC50 Air Filter

[mofares]

Hi Folks, Wanted to know if anyone is using a ITG JC50/40 sausage oval Filter (twin DCOE's) with stock booster. I measured 60mm clearance with my Canon manifolds but don't know if the wider sausage would squeeze in. I know the JC50/25 will fit but then I would have to remove the 26mm stacks. I've read all the treads but maybe someone has the slightly wider filter squeezed into their vehicle and it works before I resort to buying the narrower filter, smaller stacks and baseplate. Thanks in advance. 

[visionaut]

A 26mm trumpet inside a filter with 40mm inner clearance puts the trumpet bellmouth a bit too close to the filter… The recommended min unobstructed distance in front of a trumpet is one diameter.

[mofares]

Hmmm...I ran w/o stack with K&N type oval filters (attached from IE) and it wasn't as smooth as w/ 26mm stacks and no filter. I played around with lots of jetting, correctors, emulsion tubes and 123 curve and its fairly dialed in. I'll install a AFM next spring and have a shop adjust on a dyno. The oval filters will not allow stacks to slide through due to mounting configuration otherwise I'd just use the filters I have for the time being. Plus I think these oval elements are restrictive not that I have a 175 hp engine and the ITG are proven. I don't drive the car often and I realize long term engine damage can be had w/o a filter but the responsiveness is amazing!  Thanks for the reply. 

[Son of Marty]

Try these with your existing filters. Pegasus racing 26.99 each.

[visionaut]

Yep, like SoM said, stubbies are a good choice with limited clearance..

[Son of Marty]

Yup, stubbies are also a good choice when putting beer in a ice chest, you'll get more bottles in there ?.

[popovm]

Can't comment. I haven't tried squeezing the sausage in anywhere new in a while nor do I have dual sidedrafts. 

[Rich]

Jose Rosario uses that saussage filter, he should chime in soon,

[Leucadian]

Not to thread hijack, but I was wondering the same thing, except with 2 JC20's as opposed to the sausage.  at 2 9/16" it looks like it would definitely hit the booster, but not by much

 

 

 

[Son of Marty]

It only clears the booster if you can back up a steep driveway with out it hitting.

[Chris_B]

I have been using these filters I bought from an Aus company. The fit, but just barely

[d.hitchcock]

May be apples and oranges, but I run Jenvey ITBs with a very similar sausage style filter element. I have a tii booster and there isn't much spare room. I can't see it working in my setup with a non-tii booster.

[TobyB]

The problem with the flat- plate filters isn't so much that they're restrictive, it's that they 

sit too close to the the carb throats.  The reversion wave that comes back out

of a sidedraft is quite something to behold.   And air turbulence in the engine

compartment can disrupt it.

 

I've come to the conclusion that what you really need is a 3 meter clean air box around 

the damned things- otherwise, you're leaving (sometime significant) power on the table.

 

Constructive suggestions?  Not many.  I use a huge airbox with a paper filter as far away from

the throats as possible, and it's still not idea.

 

t

took the brakes all the way off.  Much faster that way.

 

[tzei]

If one doesn’t mind a ”little” exercise one can move mc/booster assembly more towards the inner wing. Easy 15 mm or so more room to be had. I did this to clear S14 air box.

[Chris_B]

1 hour ago, TobyB said:

The problem with the flat- plate filters isn't so much that they're restrictive, it's that they 

sit too close to the the carb throats.  The reversion wave that comes back out

of a sidedraft is quite something to behold.   And air turbulence in the engine

compartment can disrupt it.

I have a set of these inside of my filters. Not sure if it makes any difference.