skuzbucket

I just finished installing the Typhoon and it seems to have made a small but noticible difference, however...

When under hard acceleration in 2nd and 3rd gears, I get a really loud internal resonance from the intake. The dash sounds like it is gonna vibrate clear out of the car.

Anyone else experience this? I knew it would louder, however I didn't think it would make the car vibrate like that. I did not pop a CEL or have any abnormal things take place. I do not have the hesitation problem some people are talking about in the middle of thr RPM range either.

Any ideas on the resonance though?

Thanks all.

Ted

Omicron

Nope, that's the way all the aftermarket intakes are. You do get used to it, sorta.

cgrx

I just installed mine today and it vibrates too. I need to tighten down the heat shiled more and buy the rubber grommets that hold the engine cover onto the stock airbox. My new car didn't have them WTF ?

skuzbucket

I was not enthused with the vibration myself. More tweaking this weekend I guess after the NEW SNOW melts.....

Omicron

I was not particularly enamored with the vibration either... after about the first dozen or so hard runs, the sound got old. But I have the Rotary Extreme short ram intake, which comes with hear shields back and top, so I insulated them - and it made a huge difference. Details here if you're interested... maybe you could fab some shields up and insulate them. Just a thought.

XeRo

i thought K&N was sending out Heat Shields to owners who previously bought the Typhoon before they fabricated a shield?

ATL RX-8

I'd love for this to be true. Though unfortunately, I can't handle the idle problems. I'll be removing mine this weekend or tonight, and going back to stock intake and make sure the intake was indeed the cause of my idling problems.

skuzbucket

I have a fix idea for the vibration...

Dynamat Extreme

Gonna fab a new heat shield tonite and then dynamat it and see how that works....

Omicron

Cool! Please post up pics of what you come up with - I'm sure there's a lot of Typhoon owners who would love to cut down on the noise.

Moloko9

Ill post tonite

Damn forum - this is actually Skuzbucket

skuzbucket

Ok - now I got logged in correctly - I got dynamat extreme (the aluminum HI temp stuff)

Gonna do up the baffle from K&N, the underside of the tub itself and the engine cowl underneath. The stuff is rated to 300 Degrees + so I dont think there will be any issue...

Ill take pics of the install as well as the finished product and let everyone know.

Omicron

Excellent. Please take pics of each step of the install and put together a DIY thread like this one. There are more K&N Typhoon adopters than there are RE intake users, and I'm sure a DIY thread on it would be a big hit.

skuzbucket

ack - no time - kids...

Ill have to do it in the next few days or so...

Ill let y'all know when it is complete and post pics...

skuzbucket

ok- I got to it last night

quick overview:

I dynamatted the enter heat shield itself. Ill get pics posted in a DIY soon. It helped, but not to the degree that I would have expected. When I get on it, the dash still starts to sing...

I have a few more mods that ill be doing today that should take care of the vibration. We noticed last night that the intake tube itself vibrates like a madman. We will be damping it by adding some dynamat to the "foot" that comes in contact with the heat shield. Also - we might place some dynamat on the intake tube itself, but have not come to that as a solution as of yet. Also - the engine cover might be a source of some of the problem. It basically bridges from the heatshield to the firewall of the car and removing it does take some of the issue away.

Anywho - ill let everyone know the more I dig into the issue.

Ted

Speed Racer

You may want to look into creating a cover for the heat shield then adding dynamat to that. I'd think that would cut down on the noise and also keep out more of the hot air from the engine bay.

skuzbucket

Yup - we were thinking of that as well.

Ill let everyone know soon

Omicron

Yes, this will make the biggest difference of all. But didn't I already suggest it?

Speed Racer

Hmm... are referring to this post?

So how would you describe the sound of your insulated RE intake?

1. Same sound but quieter
2. Muffled madness
3. What sound?!?
4. None of the above

Omicron

I'd describe it as having made a 50% reduction in the noise of the Rotary Extreme short ram intake. It's still loud at WOT, but not nearly as bad as it was before. Details here.

IOW, I chose door #1.

skuzbucket

well.....

Off the intake came. It made interior parts loose (yes I have a lead foot) even after the dynamat. I will be doing the cover, etc but need to have a machine shop to do it right. So - it will be a bit before the intake instructions get posted on the DIY stuff.

Ill let y'all know when im done.

BoxerGT2.5

This is the reason I yanked the intake and went with the green filter.

cgrx

I've had mine for 4 days and I'm loving it !

Thanks RX8Store !

ATL RX-8

I liked the sound my Typhoon made. It was the erratic idle that got me.

Wildcard

I've got the RE intake as well and I have found another way to make it quieter. I have reconnected the VFAD vacuum hoses so that the VFAD is operating as it does with the stock intake. That included re-connecting the original hose with the black cylinder on it back up to the white 90 degree connection.

I think it definately makes a difference with the mid-rpm resonating problem. To do this mod though, you will need to buy some extra vacuum hose because with the mounting position of the solenoid valve on the back of the heat shield, the original hose isn't long enough to reach the tube in the bottom of the intake cavity.

The way to check that you have got it rigged up correctly is to grab a torch and look in to the VFAD from the inside. If the door is closed, you've done it right.

I've also insulated my heatshields and now at last I'm happy with the sound. I think driveablility has also improved with the VFAD now closed below 7250rpm.

rotarygod

That means flashlight to all you non-aussies! Don't put a flaming torch (as we know them in America!) in your engine bay.