For those customers with the Greddy turbo kit or other forced induction setups, a slight power increase can be obtained by eliminating an internal boost leak. One of the three hoses leading back to the intake is the problem. We have been testing a simple one way checkvalve that can handle the heat/pressure and yet is a cost effective way to eliminate the problem. Please do not expect a huge increase in performance but a boost leak is a boost leak. They are in stock with instructions for $14.99 on our ebay Store

Thanks!

Scott

 

I ordered mine.
Is it the hose with the yellow line at the end (I believe the other hose has a white lne)? I was using a generic autozone check valve but the opening is too small so I took it out. Yours looks like the right size.

 

Ordered mine as well.

 

Ordered mine also!

 

Got mine. Only one more left. I figure if I can get an extra 2-3 hp with this it would be more than worth it, considering people are spending over 5 bills for that same amount of hp n/a.

 

^^^

 

lol that's a funny way to put it, because it's right!

ot...A FVCKIN SHARK ATE ME!

 

Please do not advertise other vendors products for sale in this forum, thanks in advance Scott

 

Got mine today. I'll install it along with the other two plugs sometime this coming week.

 

Apparantly, you install it on the hose with the yellow stripe. However, we could not find that stripe.
Is this, by chance the correct hose?

 

No, I believe its the one that connects to the oil filler hose. I could be wrong as I don't have the instructions near me right now. But I'm pretty sure thats where I put mine. ITs a 5 min install btw.

 

It goes inline with the hose that routes around/under the alternator. Then the hose goes down towards the lower intake manifold. Black side towards the engine,Scott

 

That's the issue Scott, the way mine is installed I have 2 hoses that route around/under the alternator. In my installation, the hose directly behind the air filter is turned so that the hose does not pass underneath the intake (as your instructions indicate).
In the below picture, is the one marked "Correct?" the correct hose then?

Thanks much!

(I used an old pic of Adrian's engine)

 

Correct looks correct from this angle.Scott

 

Excelente, thank you Scott! Sorry, I honestly wasn't trying to be facetious with that "Correct?" comment, it might have come out that way though :-).

Take care!

 

Glad to help,Scott

 

It doesn't go on the oil filler hose.

You had to use a hose joiner and extra hose to get it to reach the intake. Look further down where the hose joiner is and you should see the yellow mark (or not if it was cut).
You could also look at the other hose and check to see if it has the white mark.

 

Hey guys, I had mine on for 6months now, and I hooked it up to the yellow striped hose,but that is also the hose that goes to the greddy filter location..

 

Yeah, thats where I installed mine. Sorry, don't know what the "F" I was thinking. Found the instructions, and yes is the hose with the yellow line.

 

There's the confusion, the correct hose to install the check valve on, actually has a white mark on it for me. As well, the hose joiner is on the hose connected directly behind the air filter.
I hope the hose going to the jet air nozzles and and the hose going to the oil metering pump aren't mixed up...

 

Not trying to confuse anyone, just trying to make sure the check valve is installed on the hose letting air out.

Basically you have 2 hoses coming out near the engine that connect to the intake and intake pipe. 1 of these is letting a small amount of air while in boost. The one leaking for me happens to have a yellow mark.
I know this because I leak checked it and the air was escaping through this hose.

How did you verify this? If your going by what Scott said, there's no way to tell by looking at a picture.

The Greddy instructions say to "Connect the air hose from the Metering Oil Pump to suction pipe S-1 and connect the Jet Air Fuel Mixing sir hose to the fitting on the Airinx using provided hose fitting and 9Æ hose" BUT you don't know which is which. So, you can't say it's the hose going to the intake or hose going to the intake pipe.

It doesn't matter if you have them switched since they both will get air, but it does matter which one the check valve is on since only one lets air back out.

I say put it on the hose with the yellow mark or leak check it to be sure.

 

Assuming that my mechanic installed the hoses correctly, Scott verified that the hose I pointed out in the picture was the correct one.

Unfortunately, I don't have one with a yellow stripe (must have been cut). Refering to the pic I posted earlier (of your engine :-) ) Did you install your check valve in the hose I circled "Correct?"

I loose track of them as soon as they go underneath the alternator so I can't tell which one goes to the fuel nozzles and which one to the oil metering pump.

 

Ok, well there are only 3 hoses. The one from the oil filler is definitely not that, but make sure that is going to the nipple closest to your airinx. The second one is the one with the while line on it, which you confirmed that you have. The third is the line that has no yellow line on it, but by process of elimination, this should be the one you want to use. Also make sure you install it in the correct direction. Hope that helps.

 

I've seen that some people seem to have their oil filler hose going directly behind the airnix, and others (like myself) have it going to the right nipple on the lower manifold.

Here is a pic of my engine:

1) Oil Filler hose: going to the catch can and then into the right nipple on the lower manifold

2) Oil Metering hose: going to the left nipple on the lower manifold.

3) Jet Fuel Nozzle hose: going to the nipple right behind the airnix filter. <-- (check valve installed)

Does this configuration of hoses work, or should my catch can hose be connected to the the airnix, and the jet fuel hose be connected to the right nipple on the lower manifold?

This is driving me insane thinking I might have something hooked up wrong.

 

Looks correct to me,Scott