ronarndt

Does anyone have any creative ways to block off the EGR hose from the stock intake elbow, which does not have anywhere to connect to on the GReddy elbow. I have been using the bolt and hose clamp method, but it looks pretty crude and I would like to try something else. I've got close to $3K of polished aluminum under the hood and this hose/bolt thing which really detracts from the rest of the stuff.

widebody2

chrome a spark plug and stick it in. Make the hose short so its out of sight. I've even heard of people drillinga a hole into the elbow and using a nipple from a hardware store to connect it.
I actually have my own quetsion for you-directly under where the elbow connects to the throttle body, is there a vac hose that should go there? I just put mine on and my car is running like absolute ****. thanks

ronarndt

Widebody2- I was about to post the same question you asked. With my stock intake elbow with the EGR hose attached, the primary boost was almost instantly up to 14 psi. Now with the GReddy elbow and the EGR hose blocked off, primary boost goes slower up to 12 psi, then to 14 when the secondary kicks in. I have a feeling the EGR hose not connected is affecting manifold vacuum and the rats nest of other vacuum hoses and sensors and is killing some of the boost. I'm going to put the stock elbow back on to confirm this and if that's the problem, I will have to put a hose barb type fitting on the GReddy elbow. Anyone else have this problem?

hapa

I think you guys are referring to the A.W.S. hose (accelerated warm up system). This hose is for cold starts where the engine rev's up to 3K rpm to warm the precat. This is bad for the engine, and with a downpipe, completely uneccesary. If you have an Apexi power FC you don't even use the A.W.S. any more. If your going to keep your stock or modified computer, I would weld a nipple onto the Greddy elbow, and plumb the system back in. I have heard of people both venting and plugging the hose, both had small bad side effects. It shouldn't have anything to do with boost though.

eric

ronarndt

hapa- Thanks for correcting the designation of that hose. I noticed that the 3K warmup cycle has been different since installing the GReddy elbow. I think I will still put the stock pipe back on to compare and may add a nipple to the GReddy pipe.

the_saint

You can buy rubber caps from any parts store. The one I am using works perfectly (just use the same clamp that is on the hose). There will be no 3k rpm on start up with it blocked off. You can't see the rubber stopper at all, unless you try and kiss the firewall.

I have not noticed any change in boost with or without that hose hooked up.

Mike

SleepR1

5/8-inch heavy duty rubber HELP bypass cap from an autoparts store, plus a 7/8-inch screw clamp works like a charm. I have Power FC, so no idle problems for me...

GoRacer

iTrader: (2)

^ thanks for those sizes! Does anyone sell them in silicone? ...Mcmaster or baker precision maybe?

On one of Tri-Points race cars (single turbo), they welded an aluminum fitting (strait noodle)and it looks real good. I tried to have the same thing done but what I got was a brass (bent elbow) fitting. It get's in the way of the oil filter (when changing it) and it looks Goofy (Mickey Mouse Racing).

SleepR1

Go, the HELP bypass cap is black silicone rubber material. For $3 total ($2 for the cap, and 1$ for the clamp), it's worth the ole college try LOL

shred

I am doing this little upgrade as we speak, I have been looking for an adequate nipple for the new intake elbow, with little luck, need an aluminum one, cant' seem to track one down.

Has anyone had a problem with blocking off the hose?? I don't want little crap going wrong that might lead to problems later, took long enough to get my car working as well as it does now.

Any pointers??

rynberg

Max Cooper's experience (scroll down to Greddy elbow):

http://www.maxcooper.com/rx7/parts_info/ic/index.html

In the end, Max left it plugged and did not replumb it.

speeddemon7

sounds to me like its there for a number of reasons.Replumbing it seems like the best solution.And also the least problematic.

volley1

Depends on if you have a PFC or drive your car in a cold climate, right? I just capped mine off until I install the block off plates over the winter when I do my vacuum hoses. I guess my thought is why would you want to start welding a nipple on a perfectly polished Greddy elbow when you can just plug the pipe with a $2 vacuum cap? And maybe have to deal with a few cold starting issues when it is cold outside? I guess to each his own. I also have a PFC so I don't have to worry about idle or anything.