I Just Bought A Turbonetics Wastegate From My Friend For A Good Price But I Wanted To Know The Main Purpose Of It ? ( Dont Really Know Much About The Wastegates)

Thanks

 

What's the difference between internal and external wastegates?
Internal wastegates are comprised of a flapper door which is built in the turbine housing, usually operated pneumatically by a mechanical actuator. These flapper doors are limited in size, but work well in certain applications. Usually found in smaller turbos, internal wastegates are relatively inexpensive, simple in design, and very durable. Larger turbo can be fitted with internal wastegates, but boost control can be tricky. If you are looking to run high boost (20+ psi) all the time, then an internal gate may be fine. If you are looking to run lower boost levels, you will need an external wastegate.

External wastegates are generally mounted to the exhaust manifold or to the O2 housing, and are self contained units. External wastegates have the ability to bypass large amounts of air, and can provide steady boost control at any pressure level. A common myth is that in order to run higher boost pressures, you need a larger wastegate. This is incorrect. Larger wastegates are necessary to run low boost levels on large turbos.

btw - google is your friend, please use it

 

Thanks for the reply ,

my wastegate is an external, so is it worth putting it on ? w/ a mbc boostin at 17 lbs? b.t.w does it get rid of some turbo lag too ? ( the wastegate?)

 

No, a different wastegate won't help lag. the best way to reduce lag on a given turbo is to get your ECU reflashed by a tuner using the stock turbo. This will also allow you to ditch the MBC and control boost properly (per your MBC posts earlier). Save the wastegate for the big turbo later.

 

K, Thanks For The Help Ban Suvs