a double sheaved umbrella seal would be ideal for sealing(but might stick the throttle at higher boost levels, a proper test requires working the throttle while applying pressure to the system), i have a feeling they use a simple o-ring to seal them.

 

they only use an oring on the throttle plate shaft where it goes through the bearing. The bearing has no way of sealing in the throttle body housing, it just presses (very loosely) into it.

 

then i would suggest trying to figure out an external(additional) seal. some sealant on the outside of the bearing would also be helpful, assuming it is the type that does not need to float in the housing.

 

Sealed ball bearings typically call for very tight tolerances around .002" maximum.

Sounds like a combination **** poor Quality control & assurance. Will have to go check my unit now.

 

Ben, I have one of these laying around. You'll get to fix it soon enough. haha

 

heh, i'm going to need to redesign it on my 80mm throttle body also for the twin charged setup. i doubt it should be very difficult. i just haven't set my hands on the RW throttle body to see exactly how it is set up.

 

its fairly simple you will see, but needs a little more work to make it right. I already tried siliconing the bearing and that did not work. So next is trying to find a seal that works.

 

A molybdemum based lube may work better with this application

 

Mine leaks too. I couldn't even build 3psi. The leak is very loud, and it is easily felt. . I'm surprised that my turbo can get up to 17psi.

I was thinking of putting my stock one back on so I could check the rest of the system but one of you guys need to think of a fix

 

UpdateS?

 

That's odd,,,, that they leak. I have installed 10 of these units from there first batch when they first came on the market with them. No leaks at all.. At least they are working with you guys that are having problems and getting them fixed...

 

OEM TB works fine for any FD running 'street' rwhp levels...... based on this thread, you won't catch me installing one anytime soon. A performance TB that, um, leads to a loss in power. Hmmmmmm

 

I haven't noticed a leak in mine.

 

There are 3 of us in S. FL that have the TB's and none of them leak. They are all from the 1st batch so maybe we just got lucky...

L8R

 

^That's good to hear. LWNSLW, is that you ?

 

It's more like you haven't noticed any leaking though right?

 

I'm willing to bet they all leak. I will be taking mine off soon and replacing it with a stock TB.

 

Yea I think that's more likely. It's a shame .

 

I'll pressure test mine to be sure. It can't be that hard to fix if it does. It's a nice piece and I would hate to give up on it or get rid of it over something like this.

 

Does rotaryworks post on here? I was considering buying this piece but will not based on these discussions, I'm sure they would like to have input or respond as its detracting sales.

 

In the Bad Guy thread in the business section the guy who claims to have designed the parts but says he doesn't have anything to do with the business says it's not his fault his designs were made in China or something like that. My personal opinion is I don't believe him but just read the bad guy section and form your own opinion. They have multiple products across multiple vehicles that just don't fit.

 

I spoke to someone about the issue. I called rotary works and they gave me the number of someone named Ace at cxracing...

Anyway that can be discussed later.

Like others have said, yes the throttle body should probably at least leak a little. Even the stocker does (as Ben said). It should hold alot of boost. Ace says that buying the TB for a street car would be a waste. Either way, for all of you that have problems, please post up and lets see what we can do after deals gap. Please add yourself to the list with the following info...

Name, duration of ownership, duration of use, when the problem was encountered, how much boost you are running, how you found out the problem

ex.
1. prew - Duration: 1 year, Installed: 9 months, Boost: 20psi, First failure encounter: during dyno run, Testing methods: pressure tested using a tire pump

As far as the claims from China, Ace said that everything was made locally and that's why the pieces are so expensive.

 

Is this just for the Throttle Body or for all the other parts that don't fit?

According to Rene who "designed" the parts but doesn't make them (once again according to him) all of these designs he created are being manufactured in China. This is in the rather lengthy Bad Guy thread about them if anyone would care to verify that my recollection is correct.

 

Sorry, haven't followed this thread in a while....

Rich, YES....it's me... formerly LWNSLW.... I changed my forum name to match my personalized tag on the FD....

 

Andrew,
I am currently running about 18-20 psi and have no boost lost... I have been using it since day one and if it is leaking, which it may be, it is very minimal and not affecting my performance. It holds the psi steadily during 3rd or 4th gear pulls at the track...

There are 2 others I can speak of locally in my area that have not experienced any issues either....we all purchased them within a week of each other...

One (papsmagu) is at 24 lbs of boost, running cosistant 10 sec 1/4 mile times and the other ( jm93rx7) just got dynoed last week and put down 502HP @ 20 lbs of boost.. our tuner never mentioned any boost lost or vacum leak during the hour session..

http://www.youtube.com/watch?v=zZOky...36FAAAAAAAAFAA

AGAIN... this is our experience so far.... if they DO LEAK then it is not affecting any of our performance as of yet...