New thread for mbc...old idea sucked
 

Ok, scratch the last thread I made on a mbc. What I was going to try I ended up breaking anyway, so it's back to the drawing board. It's going onto an egay 38mm wastegate, spring is an 8 pound spring. I need to jump it to 14-15psi if possible, but I don't usually deal with boost controllers...I usually just get a larger spring. So now I'm confused...should I use a bleed-style mbc, or get one similar to a "grainger valve"? I'm thinking more towards bleed style, but hey...never hurts to ask. :-\

Re: New thread for mbc...old idea sucked
 

https://www.homemadeturbo.com/forum/...?topic=75418.0 Maybe?


I just rocked the normal eGay style HMMBC. I had an internal gate that fluttered more than an a PMSing girlfriend that thinks cheating is "wrong".


JP

Re: New thread for mbc...old idea sucked
 

I checked that thread out 100%. It's a great idea, but I don't need a 2-stage setup. My b16 has no torque as it is, and I'm shooting for a good mid-range powerband and a max of 15psi from a modified tdo5h 7cm^2/14b. People may doubt the turbo, but I tested it on a friend's 93 eclipse...threshold at 3100 and held rock steady 22psi to 7800. I just need to get it up to that 14-15 mark, and that 8 pound spring just won't cut what I need to get out of it. :P If I still had an internal gate setup I wouldn't worry about it, mbc would be no issue and a grainger valve would've worked fine. :P

Re: New thread for mbc...old idea sucked
 

you can't go wrong with a simple ball and spring mbc.
here are some other options:
mine:
https://www.homemadeturbo.com/forum/...?topic=73405.0
renr's:
https://www.homemadeturbo.com/forum/...?topic=74424.0

Re: New thread for mbc...old idea sucked
 

Just pull off the vac line for the wastegate :6

Why don't you want to get a new spring, probably cost you the same as ,making an MBC....

Re: New thread for mbc...old idea sucked
 

just toss some vice grips on the wastegate line and pinch them down to dial up the boost

Re: New thread for mbc...old idea sucked
 

Mostly because I want some control over it, just in case I run into an issue down the road. It would kinda suck to get a tank of bad gas and have to deal with detonation until I could drain the tank, use it all up, or pop the motor. At least this way I could turn it back down to a safer level. I do have a 3.63psi spring that came with it and I've even thought about tossing it in, but the 8 pound one should be ok. That's exactly the kind of stuff I'm looking for...good find and thanks! :6