The Top DSM Community on the Web

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. Log in to remove most ads.

Please Support STM Tuned
Please Support ExtremePSI

Bastard 20g Questions

This site may earn a commission from merchant
affiliate links, including eBay, Amazon, and others.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

GODofWARREN

Probationary Member
29
0
Jun 6, 2012
LaPorte, Indiana
I recently blew my 16g turbo, so Im considering a Bastard 20g setup. My questions are that obviously Ill use a 16g rebuild kit, but can I just use a 20g Compressor housing, instead of machining a 16g housing to fit the 20g fan?
And my other question is, can I still use my 16g wastegate actuator, or do I use a 20g actuator?
 
you could use the 20g compressor housing, however that would partially ruin the purpose of a Bastard 20g since the 20g housing has a downward exit and no jpipe
 
It greatly depends on what you want. The 20g housing is down firing, which really helps with using a fmic as you don't need a j pipe, but you are pretty much limited to using an external gate setup. This is better anyway as that extra back pressure usually makes it harder to control boost creep.
A bastard 20g uses the original tdo5h comp housing, allowing you to keep the internal gate functional, but limits airflow vs the 3 in 2 out df compressor housing.
Read here for more detail...
http://www.dsmtuners.com/forums/newbie-forum/251006-bastard-20g-evoiii-16g.html
Personally, if I were building a 20g to run on my car, it would be the down firing comp cover, with an external setup
 
Ok, so it would be better to use a 16g housing? What is the "machining" Ill have to do to make it fit? Just enlarge the hole?
 
Support Vendors who Support the DSM Community
Boosted Fabrication ECM Tuning ExtremePSI Fuel Injector Clinic Innovation Products Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications MyMitsubishiStore.com RixRacing RockAuto RTM Racing STM Tuned

Latest posts

Build Thread Updates

Vendor Updates

Latest Classifieds

Back
Top