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More goodies: FenFabrication Cold air intake and IC Piping

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Grosse Pointe, MI, USA
#92
Slight bit of delay with a BOV issue. Apparently the vacuum pressure is so high that the spring in the Turbosmart BOV wasn't strong enough to hold it closed so it was just wide open. There is an additional spring you can purchase that we didn't think we'd need. It's showing up today and then checking for any final issues/test drive.
 

UNBROKEN

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#95
I assume production pieces will be able to use a stock style BOV? I already have a Turbosmart 50/50...don’t really wanna buy another.
 

TMac

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Knoxville, TN
#96
Slight bit of delay with a BOV issue. Apparently the vacuum pressure is so high that the spring in the Turbosmart BOV wasn't strong enough to hold it closed so it was just wide open. There is an additional spring you can purchase that we didn't think we'd need. It's showing up today and then checking for any final issues/test drive.
Please don't take this the wrong way....You didn't post anything about the procedure you used to check the blow-off. I've followed your posts closely, but I would point out that it might not be the "vacuum pressure" as you put it- it might be overboost. You also changed the exhaust. There are a lot of cases (google) where internal turbine wastegates become unable to reign in overboost when an exhaust and intake become much better. I only mention this since I don't want to see all your hard work grenaded! I may be entirely wrong, but I suggest you put a boost gauge on and check. It just seems very strange that your blow off valve would be constantly open without overboost or incorrect plumbing.
 

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Location
Grosse Pointe, MI, USA
#97
Please don't take this the wrong way....You didn't post anything about the procedure you used to check the blow-off. I've followed your posts closely, but I would point out that it might not be the "vacuum pressure" as you put it- it might be overboost. You also changed the exhaust. There are a lot of cases (google) where internal turbine wastegates become unable to reign in overboost when an exhaust and intake become much better. I only mention this since I don't want to see all your hard work grenaded! I may be entirely wrong, but I suggest you put a boost gauge on and check. It just seems very strange that your blow off valve would be constantly open without overboost or incorrect plumbing.
All good man! I live a hour away from Brett and he just relays info to me at the end of each day so I’m not actually there or helping him at all :)

I chatted with him just now and he said he understands what you mean but said zero concerns about the above, it’s fixed now, the issue was being connected to the wrong vacuum source.

The wastegate on the vehicle are vacuum actuated off a vacuum pump. Which was the same source he was using. A bov wants vacuum and boost references. So now with the correct source it’s operating as intended.
 

TMac

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#98
Glad to hear! I was worried about the boost reference on either the charge pipe side or the "after throttle plate" side. Glad you didn't see an extra 8psi. It would have been fun for awhile....

I assume you no longer need the extra spring?
 

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Location
Grosse Pointe, MI, USA
#99
Glad to hear! I was worried about the boost reference on either the charge pipe side or the "after throttle plate" side. Glad you didn't see an extra 8psi. It would have been fun for awhile....

I assume you no longer need the extra spring?
Honestly not sure but what I do know is the spring that comes with it is for 18in-hg which is just slightly too low for the explorer being at 20in-hg. By adding the spring we increased it to cover 20-25in-hg
 



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