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Old 05-01-2004, 05:48 PM   #1
BOY
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Exclamation Holy Overboost, Batman

So I decided to try and make a boost controller. $3 in parts later I was ready. Install, easy. 12 psi in 2nd gear... EEEK!!! 14 psi in 3rd.... YIKES!!! I didn't try shifting to 4th.



back to the drawing board
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Old 05-01-2004, 06:31 PM   #2
8Complex

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Sounds like you need to cut a few coils off that spring.
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Old 05-02-2004, 02:32 AM   #3
wcbjr
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I think I have a MBC in the garage I can give you if you pay shipping.
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Old 05-02-2004, 03:01 PM   #4
BOY
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Quote:
Originally posted by wcbjr
I think I have a MBC in the garage I can give you if you pay shipping.
Charlie, is that the one we hooked up at FIS last year? I forget, was it a bleed type or just a bearing & spring?

Either way, let me know how much shipping is to Wichita Falls, 76308
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Old 05-02-2004, 11:30 PM   #5
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That's the one. I believe I still have it somewhere. I see if I can locate it tomorrow.
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Old 05-03-2004, 08:15 PM   #6
BOY
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SWEET!!! Just let me know the cost of shipping. I PMed you my address yesterday.


muahahaha


BTW, please someone smack me for helping my buddy tune his WRX... his 04 is faster than a raped ape with just the 3/16th mod, silencer and axle-back removal When will I learn
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Old 05-03-2004, 10:09 PM   #7
Graham
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Yah I think Charlie's is that little Dawes Device...those things work quite well.


Graham
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Old 05-04-2004, 12:43 PM   #8
wcbjr
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No luck. Will keep searching.
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Old 05-04-2004, 06:52 PM   #9
BOY
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Dawes' device was my plan "C". Plan "B" was to remake what I had with larger fittings to reduce the effect of a restrictor. Dawes' devices will work but they're trickier to make from scratch... then again, if Charlie finds his I won't need a plan "B" or "C"
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Old 05-07-2004, 07:56 AM   #10
wcbjr
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What turbo are you using? What wastegate?
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Old 05-07-2004, 12:13 PM   #11
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EBC?
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Old 05-07-2004, 04:06 PM   #12
BOY
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Quote:
Originally posted by wcbjr
What turbo are you using? What wastegate?
VF10, stock internal WG.
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Old 05-14-2004, 09:17 PM   #13
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Eureka! Found the Dawes Device.
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Old 05-15-2004, 01:17 PM   #14
BOY
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SWEET!! Charlie, PM me your phone number so we can work out shipping!














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Old 05-19-2004, 07:53 PM   #15
wcbjr
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And the verdict is???

I hope you didnt leave it set for 17psi.
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Old 05-19-2004, 08:17 PM   #16
mr. m
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what parts and design did you use for the homemade boost controller?
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Old 05-20-2004, 11:10 PM   #17
BOY
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Quote:
Originally posted by wcbjr
And the verdict is???

I hope you didnt leave it set for 17psi.
It'll go in this weekend or next... if I can get my hands on my buddies laptop that is. And no, I'll be backing it off all the way to start

Mr M. I used a male and femal 1/8" x 1/4" NPT hose barb, a spring and a 3/16" ball bearing. The 1/8" barb was probably part of the problem (acted as a restrictor) but the spring either was WAY too soft and sealed the output side or way too stiff and just didn't open enough. The project only cost a few dollars so it wasn't (luckily) a big deal. My next attempt was going to be a t fitting and a needle valve, cost a little more but should be better at minute changes in pressure. If the dawes device doesn't work for me then I'll be trying the needle valve.
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