He completely Hellen Keller'd and skipped over the photo. Hmmm so the answer is to get the spring kit? Sounds good. I sent off a message to forge just to make sure Sent from my iPhone using Tapatalk.
Last edited by johnnybravo! Guess whats keeping the DV closed??? Stiffer springs don't hold boost more all they do is delay when the valve can actually open and do its job. The green spring was more than enough, anything past that caused flutter and surging and never had a problem holding 25psi of boost.
I'm guessing the green spring will work just as well on our cars. No clue what you are talking about. These are brand new and there's one shim Sent from my iPhone using Tapatalk. I hate it when my car acts like a little bitch, treating me like a bitch. If you go to the forge website look up the spring kit and it tells you what to do it also recommends calling them to make sure your doing the right thing im not sure if the stock DV lines pressurize under boost but forge also sells a kit so that it can pressurize the DV and keep it closed if need be.
I think a 30lb spring would cause a lot of problems. The top nipple pushes down with manifold pressure, while the underside of the dv has opposing force with charge pipe pressure. You will always have a pressure difference due to pressure loss along with the motor basically acting like a big vacuum pump we just happen to try and overstuff.
You need a pressure difference to keep the dv closed, but you can always get surging while in boost not to be confused with compressor surge from blow back when the throttle body flapper closes. This is why people suggested just to play with the springs till there is no surge and the dv holds boost. And now that I think about it Forgot to count the yellow one. I personally just run the recommended with the blue spring at 25psi. Used to run the green spring with two shims on the stock turbo at 21psi with the Now blue spring with no shims on a with the It hasn't happened to everyone though.
Lee Full Member. Jan 22, 72 0 Plymouth. How much did the spring kit cost you? So it doesn't take Alan Sugar to figure out which one is the bargain! Jul 25, 31, 9 glos. Forge or their dealers like me I ran Green no problems on lots of boost. Yellow is deffo the stiffest I would be prepared to run. Why make the vacuum's job harder to suck the piston up?
Harder the spring the less it can suck it up. Go too hard and it does'nt open at all. Ring forge - they have them in stock for next day delivery. Theyre just not on the site. Think about it, How could anyone else have them if forge don't - and they're the manufacturer. Apr 22, 0 Canary Islands, Spain www.
I'm running the red one Aug 18, 8, until tomorrow, i just keep moving on From softer to harder: Green Yellow Blue Red. NeilC Has left the fold Mar 23, 0 somewhere else. SoLiDSnK said:. Type R Beater Guest. Show hidden low quality content. You must log in or register to reply here. Similar threads. Pd Arl bad fuel economy after fast road camshaft install.
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