4d56TDIC new turbo mod?

**altec** · September 12th, 2003 12:59 AM

This is in relation to the old thread on use of washers to boost our turbo. I found this at the other site. According to this, it is better to use a ball and spring boost controller. What do you think?

With no or low boost the wastegate is "closed" and all the exhaust from the exhaust manifold is sent to the turbo's turbine to spin it up. Under stock conditions, as the turbo produces boost pressure, it is transmitted to the wastegate via a small hose. When the pressure rises to a point which is set inherent to the manufacturing of the wastegate, the wategate "opens." This allows exhaust gases to bypass the turbo and keeps the turbo from spinning faster and creating more boost. Without a wastegate, the turbo would keep spinning faster and faster as the exhaust gases increase, until the turbo bearing gave out and the turbine self destructed--this would hopefully be before the pressure ruined your engine!!

http://www.geocities.com/chmwatson/FAQs/mbc.html

Install a ball and spring boost controller. It will only cost you 300 pesos by doing it yourself. This is the coolest way to control your boost and boost creep. The wastegate will not crack open until the ball pushes the spring at a certain pressure, giving you faster spool. Adding washers will only increase your boost but the response will still be laggy, bec. the wastegate will prematurely open and release pressure to early. You don't want to release pressure until the preset boost was met.

Washer Mod
http://www.ian.chisholm.clara.net/wastegatewashers.html

**pajerokid** · September 12th, 2003 01:28 AM

Definitely better, but im satisfied with mine as it is. :D

**roydok** · September 12th, 2003 05:21 AM

Nice Info.

**nugundam93** · January 31st, 2005 07:32 AM

altec: better nga MBC...pero ako tigas ulo eh. sarap kasi magbaklas at magkabit uli. :D

**ARB** · January 31st, 2005 09:37 AM

mentioned that before but you can use things used for aquarium fittings.

**notEworthy27** · January 31st, 2005 12:51 PM

nice! looks like another project.

**frt** · February 14th, 2005 12:34 PM

up ko lang to...parang khaos kasi eh ..he he pero this one works? (as an MBC)

**notEworthy27** · February 14th, 2005 02:18 PM

diba ganito talaga ang design ng MBC? or iba?

**nugundam93** · February 17th, 2005 11:34 AM

yup, ganito principle niya...parang khaos. hehehehe.

anyway, hirap naman hanapin yung mga parts for that, hardware stores don't carry majority of the parts eh

hardwares sa malls carry bigger versions, too big naman to be practical.