HKS Suction w/ forge re-circ valve

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Oct 10, 2003 | 03:50 PM

#16

evolutionist

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From: GA

Quote:

Originally posted by ducaticorse
[BI called VIVID and told them about the problem, they said they're running the forge with the blue spring and two shims, and it runs flawless. I've yet to install the shims, but if they don't work, I'm returning the forge to VIVID, because it SUCKS driving around with it the way it is now. Trust me, install the two shims[/B]

I just tried this. It did not work. Still the fluttering and the jerking. I have not tried it upside down yet, I will give it a shot.

PS I had the green in, the yellow in, and the blue. Now the blue with two shims.

The one thing I did notice is the pressure came on quicker and the boost was 1psi higher with the two shims. I guess it was not sealing all the way.

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Oct 10, 2003 | 04:26 PM

#17

evolutionist

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From: GA

Just tried it upsidedown with the blue spring and two shims. Still the flutter happens.

It does sound a different. It sounds as if it is not working near as hard to open when you let of the gas. It is when you have part throttle, the boost lets off, but you still have a little gas being given to the engine....then Zaa,Zaa,Zaa the darn flutter.

I think I am going to leave it in this configuration. It is not as bad as the other way, but still not satisfactory.

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Oct 10, 2003 | 04:38 PM

#18

ducaticorse

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So by upside down, you mean the piston? In your opininon, is it worth going through the trouble for something that won't be perfect? It won't suffice if the jerk is still there.

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Oct 10, 2003 | 05:19 PM

#19

evolutionist

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From: GA

Quote:

Originally posted by ducaticorse
So by upside down, you mean the piston? In your opininon, is it worth going through the trouble for something that won't be perfect? It won't suffice if the jerk is still there.

The vaccum line is pointing upward. That is upside down. The pistion is really vertical like this. It makes more since this way.

The stock posistion is were the vaccum line is horizontal, like the stock unit.

If I was to do it over again the forge would not be a part I would buy.

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Oct 10, 2003 | 06:33 PM

#20

totaleuge

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From: Rockville, MD

yeah make sure the BOV is in the right direction. when i was installing my friend's HKS intake, i accidently installed the BOV the other way. it makes that flutter sound like some of the JDM cars u see in Best Motoring. mine was just a loud whoooosh. so i looked carefully and it was in a different position than mine. i reversed it and it sounded normal.

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Oct 11, 2003 | 03:46 PM

#21

03EvoVIII

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From: Virginia Beach, VA

Quote:

Originally posted by ducaticorse
In your opininon, is it worth going through the trouble for something that won't be perfect?

I'm with evolutionist on this one, if I had it to do over again I wouldn't get the forge. I'm still going to try the blue with 2 shims (on monday), but if that doesn't work it is back to stock and then onto the modified Greddy TypeS.

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Oct 11, 2003 | 04:35 PM

#22

webguy330i

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From: San Jose, CA

Hey guys we another thread about this as well:

https://www.evolutionm.net/forums/sh...threadid=40106

Fireball, can you give an assessment of your "fluttering-ness" for various rpm points like I did? I'd be interested to see how it's working for you. I'm running the yellow spring right now w/ no shims...

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