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AustinL911
Dodge Dakota
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11/10/2002
19:48:09
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 Subject: My idea for a supercharger boost control
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Why couldn't you just put on a very small pulley and then rig up a waste gate to the s/c discharge tube to bleed off boost? Not very familiar with waste gates or boost controllers....just a thought
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xplikt
GenIII
11/10/2002
19:59:59
| RE: My idea for a supercharger boost control
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I don't see any reason why that wouldn't work, but it poses a few problems.
First, your supercharger will be spinning very fast. At extreme boost conditions. Instead of just sometimes, it'll be doing it all the time. I have no idea how long a supercharger would last at that kind of abuse, but it's life should be considerably less than normal.
Second, high RPM means more heat, so you are actually dumping a lot of hot air into your engine. That's no good either.
-Mike
http://www.dodgetruckworld.com/xplikt/
2002 2WD RC SLT 4.7L 5spd 3.92 LSD
MBRP Single in/out, straight piped 3rd cat, turndown tip
Hotchkis swaybars and springs
Bilstein custom tuned shocks
Roadmaster Active Suspension
Shaved emblems and antennae
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kota on 20s
GenIII
11/10/2002
22:00:41
| RE: My idea for a supercharger boost control
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bleeding off boost when the blower is spinning fast, will make about the same boost as a slower spinning blower and not bleed any boost.
im not sure what you mean though? i have a bypass valve on mine that bleeds off boost. it only does it when in vaccume or when i let off the gas. when it goes into boost, it closes up to build the pressure.
-Eric
Injection is nice, but i'd rather be blown.
5.2L, 5speed. Powerdyne SC, 50mm TB, 2bbl M-1, 1.7RR's, MSD 6BTM, ciramic JBA headers, 3" carsound cat, dumped gibson
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xplikt
GenIII
11/10/2002
22:17:34
| RE: My idea for a supercharger boost control
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Eric, he means put a wastegate after the blower, but before the intake and set it to a certain amount of boost. Once you reach that amount, the wastegate would open and dump the extra air, thus it never goes over a certain amount of boost.
-Mike
http://www.dodgetruckworld.com/xplikt/
2002 2WD RC SLT 4.7L 5spd 3.92 LSD
MBRP Single in/out, straight piped 3rd cat, turndown tip
Hotchkis swaybars and springs
Bilstein custom tuned shocks
Roadmaster Active Suspension
Shaved emblems and antennae
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kota on 20s
GenIII
11/10/2002
22:23:39
| RE: My idea for a supercharger boost control
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Message:
oooooooooohhhhhhh...ok
-Eric
Injection is nice, but i'd rather be blown.
5.2L, 5speed. Powerdyne SC, 50mm TB, 2bbl M-1, 1.7RR's, MSD 6BTM, ciramic JBA headers, 3" carsound cat, dumped gibson
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e
Dodge Dakota
JOIN HERE
11/11/2002
05:06:11
|  RE: My idea for a supercharger boost control
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So a BOV after the S/C wouldn't work?
Because those bypass valve setups with the bosch parts, like Speedtweeks describes, are so ugly. One of those nice shiny BOVs like on all the turbo'ed ricers wouldn't work?
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Shane
Dodge Dakota
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11/11/2002
17:51:59
| RE: My idea for a supercharger boost control
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It would not be a good idea, Most superchargers use a bypass valve that connects before and after the SC so your getting NA pressure and cool are (as it not being compressed), always running under boost ie wastegate would make for way too much heat and loss of driveablity. So get a pully for the correct amout of boost you want to run. the end of your motor would be the first time a svt lightnig pulled up and you turn the wastegate to 20psi
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Daker777
Dodge Dakota
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11/11/2002
18:27:52
| RE: My idea for a supercharger boost control
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Go to http://www.speedtweaks.net/ look at the bottom of the TURBO page and read about the Info for the PRofec-B Boost Controller. Exatcly what you are talking about but what you are wanting is kinda pointless. This setup would be sweet though because you could run a smaller pully but run lower boost, then for a race turn it up. I think ima check out this setup for the faster opening and closing, probly sounds cool as hell too.
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AustinL911
Dodge Dakota
JOIN HERE
11/11/2002
21:51:01
| RE: My idea for a supercharger boost control
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Why was the idea pointless??? just a thought that ran through my head. So the idea of being able to adjust the amount of boost on a supercharger is pointless??? Personally....I think it'd be cool as hell. Like I said....I don't know all the side effects of it, don't know what it would hurt, just thought it would be cool to put on a 14psi pulley, turn down a boost controller to drive on the street, and come race time, crank it up to 14psi without changing a pulley. But I suppose changing pulleys constantly is not pointless......
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Demon Dakota
DakotaEnthusiast
11/12/2002
09:33:43
| RE: My idea for a supercharger boost control
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Message:
I believe he has a valid point, but the life of the S/C would most likely be shortened due to the higher RPM it would run continuously. Works with turbos, but a S/C is run off the crank, so that would be more stress on the engine as well.
K&N Drop in AF
True Dual exhaust and removed third cat
HO Cams & HO Intake
Modified TB
Autolite 3923 Plugs
TPS @ .76 VDC
IAT Adjuster Mod
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