Good turbo exhaust size explanation

[TCJBOLDIE]

Hope this will end debate about the best size dump and system to use as it is written by a GARRETT boffin :bigsmile:

You will have to click on "turbo exhaust theory " 1 up from the bottom of the list on the LHS and then click on the same thing under the "engine" list

http://www.tercelreference.com/tercel_info
/turbo_exhaust_theory/turbo_exhaust_theory.html

 

[Chargedc20ne]

Thanks for the useful info TCJ, But what would be best for a supercharger engine?

 

[TCJBOLDIE]

Thanks for the useful info TCJ, But what would be best for a supercharger engine?

I would think that a SC motor would need a free flowing NA header system.

For a 4 /6 cylinder road car I would use an "interference" design Header/extractor and if it was tracked a 4-1 merge collector design header.

 

[Ronbros]

agree TCJB, supercharged would best suited with a nice free flow Header system.

its been known for many yrs, that a turbo exducer from the turbine wheel to the pipe diameter,should be in the 7*to 9* cone shaped , and pipe size at least 100% larger than the exducer diametre or more.

testing of this was done in USA in the late 1940s and finalized around 1952, by the Caterpillar company, that type R&D lead into the Airesearch turbo company, which now Garrett!