accelerated warm up house and the greddy elbow
 

i said

well can some one help?

why dont you follow the hose that was attached to the stock plastic elbow piece..

take it off the pipe its attached to.. just a little behind the throttle body.

grab a 3/4" or a 5/8" (i forgot which size it is) hose plug from your local automotive for like 2 bucks a pair.

stick it on the metal pipe.. get a hose clamp and your done.

plug it up.. dont attach a filter.. dont worry about it.. japan dosent have AWS system anyways.. hence the reason for the greddy not having it.

dont weld.. its pointless... not unless you like your engine shooting up to 3000 rpm when its cold. that'll go away.

take off the metal nipple comming from the UIM completely and put a blocking plate in it's place.

But.. We won't loose boost by having it vented to atmosphere will we? Because I see 10psi now, and I haven't plugged the hose yet.
On the other side... It DOES blow out some oil, so there must be some pressure in there..

Since I'm the subject here
 

For those of us using a PFC, the AWS system doesn't work anyway - the PFC doesn't support it (a good feature, in my opinion).

A blocking plate is probably the best way to go, but I didn't realize this until the motor was already put together, so I just welded it up so it looks clean. I think (but I'm not positive) that the fast idle hose is used when you turn on your a/c or other electic load, to help idle under load, but I'm not positive on that. Do folks that have not reconnected this hose have idle problems under electrical load?

Beast

I've had no problems with it so far, only used it a couple of days though..
I have to plug it because it do spill some oil out of the hose. But what is the air that comes out of the hose under driving?? Is that boost?

Yep - that's boost
 

My initial guess would be yes, that is boost you are venting. I don't think this is the preferred method of boost control.

Beast

I just installed the Greddy Elbow and left the hose hanging unplugged. I lost boost after 5000rpm. didn't know what the hell went wrong because the car was running gine without the new Greddy Elbow. I've read "BEAST" message and VOOLA! plugged it with a temperary oil cap and boost came back to normal. Apparently, boost does leak out from the hose.

you guys should read Max Cooper's write-up on this subject. BTW, he actually ended up just plugging it and hasn't experienced any more problems (at least that was what he said the last time this post came up...). Maybe Max will chime in.

http://www.maxcooper.com/rx7/parts_info/ic/index.html
(scroll down most of the way to the bottom)

Matty posted on the Big List, too
 

Honest, Matty, I wasn't trying to pull a fast one on you - you can see from Max's site and from others this is a common issue, but it's probably so old that it seems 'new' again. Sounds like the 'plug' method works for cars that are in relatively constant moderate temp areas, and the replumb method helps cold starting for those of us where it gets down in the 30s during the winter. Pick yer poison.

Beast
(also a Big List member for about 4 years)

EDIT: snguyen444, glad I could help. We all have to watch each others backs - need all the boost we can get with those damn souped up 'stangs and z06's running around :-)

I have a filter on mine, and it doesn't seem to bleed any boost!

Blocking off the AWS port with a block-off plate seems to be the best and cleanest solution.

Another workable and simple solution is to plug up the hose. I've used an old sparkplug, secured with the factory spring clamp, and it seemed to work well.

Re: Matty posted on the Big List, too
 

oh i know u werent trying to pull a fast one....in fact i am glad that i found your post.
Although, I do find it odd that some people loose boost and some do not. I cant think of any logical reasons why our cars would vary.
Having learned this I am going to take the filter off and try to plug it up even though i havent had any problems.

i am going to take your advice.

Thanks all for responding

ryanberg is right -- mine is still plugged. The cold start stalling went away when I moved to a warmer climate, so I don't feel any need to re-plumb it now.

I think the best way to address this is to plug it and see what happens. If you get some stalling on cold (winter cold) starts, consider replumbing it. A plug is less expensive than a filter, and I have had the same plug on mine for almost 4 years now.

-Max

Found this old post, and wanted to just resurect it for my benefit. I'm going to be installing the Greddy Elbow soon, and was wondering what I do about that hose. SO, it would seem after a lot of reading that it is okay to plug up the hose.. either at the end of the hose... or trace back where the hose starts and cap it off. As long as this doesn't mess with boost or blow something up... I'm good.

I live in a cold climate and drive my car in the winter sometimes... but I always wait until the idle drops down to normal before leaving. My auto starter helps with that. Otherwise I've noticed my car's RPMs will dip so low at a nearby stop sign or light and occasionally stall out.. if I haven't warmed it up right.

Car should idle around 1800 or 2000 when cold without the AWS. The coolant flows over a wax pellet in the throttle body that allows more air to flow past the the throttle body allowing for a higher idle. If you car does not do this correctly you need to check here to see what is going on with your car.

The AWS plates are the only real way to go IMO.

I forgot to mention that I to have a Apexi PFC ECU, and remember several people commenting on this. Because I have that installed my AWS isn't even being used anymore.

spyfish007, when you say AWS plate... is that something I need to make and weld on somehwere... or can i just go the HELP! plug root and a tie clamp?

thanks.

btw... is removing the stock elbow a pain, or can I accomplish this with a simple socket wrench myself?

damn this is an oldy....

anyways where in CT are u?

edit:is this steve?

Yeah it's Steve... is that you Petrocelli?

the older greddy elbows with injectors in them did come with a place to put the aws hose back. I say get a block off plate though. the reason some peoples vents and others doesnt is probably the electrical AWS solenoid that controls air to the aws pipe is failing or can only hold up to a certain amount.

I have been selling BOP plates for years now. I have supplied RX7store, GothamRacing, & RotaryExtreme to name a few. The plates allow you to review dead weight and retain the ability to return to stock if you should ever need to do so. You can search the forum or my web site for pictures of the plates installed or not installed.

This is what I have done and it would have saved me $60 from the local so called race shop that taped my elbow with a stupid brass fitting.

Get both AWS & AWS pipe block of plates from k2rd since they supply hex screws to replace the studs. If that's too complicated then a rubber cap and a zip tie would work but as you can see by the replies, not as well.

Link !?? :confused:

http://www.k2rd.com/products/blockoffplates.html

I can't upload my pic but there's some on another thread. Unless you wan't Spyfish's website link and not pictures?