So i blew out the seals on my first 20g china charger.. ordered a rebuild kit that didnt fit and gave up and just ordered a new 16g china turd that will be here friday.


So the question is what restrictor do i run to stop this from happening? I took the banjo bolt going in the turbo and welded one of the top feed holes shut then welded the bottom opening to a very small hole.. Unfortunatly it was too late and this 20g is still smoking like a bitch.

Could this work like ive got it with a welded banjo bolt? What size does the feed hole actually need to be? Or should I order an actual inline restrictor?

 

ATP uses .065" for journal bearing, probably a good place to start

http://www.atpturbo.com/mm5/merchant...de=ATP-OIL-022

 

Use a rivet. Obviously take the rod out, but a 1/??" rivet works perfectly, place in the feed line. Search over at mt.net

 

Yeah i read about the rivet trick... and the kit came with a restrictor that i threw out and said why the f would i restrict oil flow to my turbo? Nice ebay kit that came with no directions... Id say i welded my banjo down to rivet size or smaller. Its really hard to find the right size rivet... i went to a bunch of fastener stores but couldnt find one to fit...

I was looking for a drill bit so i could just weld it shut and dril through it but
.065 is like hair size...

I just dont want to destroy another turbo either with too much or not enough oil...

 

Moron chiming in. I'm going to be doing the turbo thing this summer so I can be a cool kid. I also am tired of point byes at the track. Please help me understand exactly what happened to your first turbo so I may learn from your woes? I'm looking to buy a BW EFR and I don't want to blow it up due to my current ignorance.

Do you have too much oil coming in off of the sandwich plate to your turbo? I assume it's not a pressure issue as a restrictor would increase the pressure of fluid coming in through that hole, but reduce volume if I'm not mistaken. Do non 中國製造 turbos come with appropriate restrictors needed?

Sorry to jack your thread, just trying to learn from this and hopefully benefit other n00bs.

 

Well the china turbos im using are based off dsm turbos.. The dsm motors have two oil ports, a high pressure off the block and a lower pressure coming off the head. When runnin a china turbo on a dsm your supposed to use the low pressure port off the head (info from my local dsm guru)

Now im not sure if some of the higher quality turbos can handle the high pressure or if the kits come with the restrictors built into one of the feed fittings. I ran the greddy setup on my first build and never had an issue...
30k miles and no smoke..

The restrictor does increases pressure but lowers volume you are correct but high pressure + high volume = blown oil seals on a china turbo as i have learned the hard way. Supposedly the restictor will solve this problem. So ive read over and over anyhow...

Ill only have about $1400 into my kit even counting the second turbo thats why im willing to roll the dice... if it doesnt work out i will eventually bite the bullet and buy a good one... im trying to do the cheapest build possible with the knowledge i have on turbo setups but there are still things for me to learn after building several turbo miatas....

 

Thanks Dirty. After googling DSM, what you say makes sense now. :P