Is there a way to control the boost in a kenne bell supercharger 2.8h in a shelby gt500 2009.
supercharger boost controller
- Thread starter 96 cobra pr
- Start date
Yeah, with the gas pedal... That's about it.
The only real way is to change the pulley size
If you really want it to run strong or pussy weak ask your tuner to make a real fat tune and take the timing out of it
But then get another actual race tune
Wow and I thought OP was joking.............
Lol, usually not about things like this
This is an interesting question...
I always wondered if the bypass valve on Eaton blowers could be hooked to a stepper motor (similar to the throttle) and you could "adjust" the boost like that?
Obviously it isn't something that would be easy to do....and I've never heard of it ever being done.
If I understand correctly, turbo cars are easy because the boost controller can "vent" the boost on the charge pipe.
We don't have that option.
I always wondered if the bypass valve on Eaton blowers could be hooked to a stepper motor (similar to the throttle) and you could "adjust" the boost like that?
Obviously it isn't something that would be easy to do....and I've never heard of it ever being done.
If I understand correctly, turbo cars are easy because the boost controller can "vent" the boost on the charge pipe.
We don't have that option.
If the bypass valve is vacum or pressure operated, controlling it is feasible by interrupting or altering its signal.
Could be done, centri guys use a blow off valve to vent excess boost out.
Turbos are controlled on the exhaust side, not the charge side. Same principle though.
Hmmmm.... This is kind of butch...but I wonder if you could fab up an adjustable stop (kind of like a throttle stop) on the bypass and adjust the opening of the bypass at WOT to the level of boost desired. Then just take the stop out if you wanted full boost?
There must be a reason why thats not a good idea?
Obviously you'd have to tune it for each boost setting..... But I supposed that's no different than having a tune for pump/race gas.
There must be a reason why thats not a good idea?
Obviously you'd have to tune it for each boost setting..... But I supposed that's no different than having a tune for pump/race gas.
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Limiting boost by dumping air is a horrible way to do what you are trying to do. By dumping air, and lowering pressure, the actual airflow increases quite a bit as seen by the supercharger. You end up way out of the island on the supercharger and the efficiency goes way down either generating lots of heat or using up a lot of power to turn the blower. The ONLY way to limit boost is to choke the air going into the charger. This would need to be done with some kind of throttle plate that would close at some boost. This will keep the heat down and actually reduce power taken by the charger.
Mike
Mike
This is interesting....
Looks like Audi is using a bypass valve on the TVS1320 to limit boost by controlling it with the computer.
I realize this is a different application, but I bet its fairly similar to our M122 or TVS.
APR 3.0 TFSI Supercharger Pulley Upgrade
Looks like Audi is using a bypass valve on the TVS1320 to limit boost by controlling it with the computer.
I realize this is a different application, but I bet its fairly similar to our M122 or TVS.
APR 3.0 TFSI Supercharger Pulley Upgrade
APR said:
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2013 GT500 does the same thing I believe, which is how they are getting so much power out of just a tune.
Yep! If our Eaton blowers came with an electronic bypass valve, we could use it for boost control like the GM guys already do!
Easy Performance - Easy Performance Eaton Boost Controller #EP-BOOSTCNTRL-STG1
So a mechanical device to adjust boost....isn't too crazy of an idea!
Easy Performance - Easy Performance Eaton Boost Controller #EP-BOOSTCNTRL-STG1
So a mechanical device to adjust boost....isn't too crazy of an idea!
I ran a wastegate on my Procharger for a while with great success (even though the opposition said it wouldn't). While it won't be as easy on a TS/Roots type blower, I think it could still be done successfully with the right type of bypass valve/controller. Also, dumping air actually cools the air charge just a bit when compared with running at the higher pressure from not dumping it (at the same SC speed).
It doesn't. You can pin the valve closed and it will still make the same boost. From an production standpoint, it wouldn't make sense to spin a supercharger any faster than it needs to.
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That controller does make some sense. You would put the smallest pulley you desire and the controller would keep your boost levels where you'd like by bypassing air so long as it is under the max rated boost for the pulley you chose.
Just sounds like one more thing to go wrong at the track or when you finally get a chance to roll up on the local ZL1 guy.
yep thats it, the guys at evo perform tried it years ago , answer NO
Sorry to bring up an old thread but I thought this would answer the original question.
It's not a cheap solution but it works great. I was able to achieve 0psi to 33psi. It's a large valve and is VERY responsive in the middle of its PW range but I was able to step in 2-3 psi increments. I was also able to control the ramp rate of the boost rise during throttle tip in which helps prevent wheel slip big screws are notorious for.
http://www.svtperformance.com/forums/showthread.php?1002896-An-Amazing-build-coming-to-the-Texas-Mile-I-think-he-s-going-for-the-record-WOW
It's not a cheap solution but it works great. I was able to achieve 0psi to 33psi. It's a large valve and is VERY responsive in the middle of its PW range but I was able to step in 2-3 psi increments. I was also able to control the ramp rate of the boost rise during throttle tip in which helps prevent wheel slip big screws are notorious for.
http://www.svtperformance.com/forums/showthread.php?1002896-An-Amazing-build-coming-to-the-Texas-Mile-I-think-he-s-going-for-the-record-WOW
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