4GEN Liberty/Legacy - RAM INTAKE SYSTEM

[Tradewind]

Update Time

No further progress since last post, still at point of reducing some clearance fits and that's about it. We are supposedly moving forward on this - this week.

Racking up plenty of Kms on it tho, and with zero other issues, it just works ........ without issues.

Got a carton full of the various things that go into the RAM kit ......these will find their way onto Liberty's/Legacy's

[SegR]

Tim,

There has been talk of cracked intake plenums and possible replacements with a stainless version from kakimoto or similar here:

viewtopic.php?f=16&t=26575&start=15

does your intake kit keep our replace the stock plenum/surge tank and if it keeps it, do you have a position on how a replacement would play with your kit?

[Tradewind]

What I am making could maybe connect to that if its in the stock position. The mounts are in stock position and having this piece is better than not having it however being in metal is a definite negative. There is a lot of heat in that area and air passing through that hot all metal tank will simply lead to quite warm intake air in the plenum. The plastic OEM pieces is so much a better if you can keep it

I personally haven't had any problem with my stock item cracking and not sure how many others have, I know there was one posted on this thread but apart from that I don't know how common this fault is.

[SegR]

Mmm good point. In the last month or so 6 people have replied to that thread saying they checked theirs and all were cracked to some degree. I'm wondering if it is really going to mess with airflow quantity though.

[Tradewind]

Just a timely heads up for all your H6 customers too Tim, especially with this RAM intake nearly ready for market;
Check for any signs of a crack running down the center of the plenum near the throttle body inlet. It is apparently quite common and can easily be overlooked -but is obviously critical for unmetered air/fueling problems. Hopefully anyone with signs of a crack appearing can get it plastic welded as i have done prior to installing the RAM intake. Sure beats finding it during installation and having to wait till it gets fixed! Anyone with a H6 should check for this..

20140626_050900.jpeg

Cheers,
Jay.

Had a slight light bulb moment on this today. Having recorded the negative pressure within this chamber with the stock air intake I have measured the forces acting with in it as the engine runs to full rpm. The negative pressure (substantial,as measured) will be flexing/working the construction of the box and eventually weakening it until failure occurs, as seen above.

Normally this part of an intake should be seeing such negative pressures but in the case of the H6 there is a lot of restriction. I bet a granny would actually not see this cracking issue as the pressure in the box is quite neutral until the AVCS kicks in, then the engine air demand really taxes the stock system.

The cure, possibly with the STAGE 4 RAM intake (now finished) this failure may never occur or is FAR less likely to occur as the pressure within the box is almost 100% neutral, no flexing of the box ever due negative pressure.

So, not only for power but to reduce failure of this box - the Raptor Stage 4 intake - keeping the pressure neutral at all times

[Tradewind]

The final trial unit has been built - I will look to sell it to a customer this coming week pending my final test fit of it

[666]

Will you be making anymore of these Tim?

Rob.

[Tradewind]

Rob

It is a product line - while there is demand, they will be always available. There currently is demand - the product will be available shortly

[THERB3]

Nice I will be interested

[Tradewind]

The first Stage 4 intake has been painted and will be offered for sale by the end of this week

Pictures of the unit will be posted here near the weeks end

[cliffo3rb]

Mine.

[666]

Tim, is your PM function working? I sent you one yesterday but no response.

Rob.

[Tradewind]

I will check now

[Aladdin_SpecB]

I'm very interested in this. Can't wait to see how it looks.

[LovinDeath]

Do want!