Turbo setup for $700-900?

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Turbo setup for $700-900?

Postby M20_fever » Sat Apr 11, 2015 4:19 am

So you guys think I can piece together a halfway decent turbo setup for under $900? Keep in mind I already have the ECU so we're talking manifold, BOV, FMIC, plumbing, and a turbo. I don't mind reworking some ebay crap to make it work since thats probably the quality I'm looking at for my budget.
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Re: Turbo setup for $700-900?

Postby Dontrusthise30 » Sun Apr 12, 2015 1:06 am

Possibly... I would recommend the most money going to a good turbo with internal gate and a decent bov. I've seen too many cheap bov's not open correctly. Ebay manifold, fmic, and piping kit if you have an aluminum welder or tons of couplings! I'll check if I've got left over ones I can send your way. How much boost are you wanting to run? Arp head studs?
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Re: Turbo setup for $700-900?

Postby M20_fever » Sun Apr 12, 2015 3:00 pm

Kind of what I was thinking. I built the engine for boost, so arps, welded and o-ringed. Was planning on around 2 bar, but with my budget may limit me to around 15psi. Let me know what you have laying around and we can work something out.
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Re: Turbo setup for $700-900?

Postby pr0craztinazn » Sun Apr 12, 2015 3:42 pm

If you purchase everything used and don't get a newer turbo (Garrett GTX), then yes... barely.
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Re: Turbo setup for $700-900?

Postby Dontrusthise30 » Sun Apr 12, 2015 4:08 pm

I know a lot of guys run the bosche bov's and they are dirt cheap and good quality. Easily had for 30-50 bucks. I'd be very careful with used turbos. I've bought two in the past and both ended up having to be rebuilt even though I was told they were in working condition. Oddly enough, a buddy of mine ran a dirt cheap ebay turbo on his miata for several years and never had an issue. I think he just got lucky though.
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Re: Turbo setup for $700-900?

Postby Yoshi » Mon Apr 13, 2015 12:30 pm

Look up how often ebay manifolds crack for M20s. All the M50 ones like to crack. Shits too thin. I'm also weary of shitty turbos. Toss a fin, kill the motor. Then sad tony.
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Re: Turbo setup for $700-900?

Postby blasphemy101 » Mon Apr 13, 2015 2:07 pm

I'm going to echo what everyone else has said and recommend you focus on the turbo and make your compromises elsewhere. If you or someone you know is able to fabricate things, you could probably work out using some kind of OEM subaru/mitsubishi/mazda turbo and get a very good turbo for your money and little extra work. A little more money and you could run a OEM Porsche/BMW turbo. I originally went with a Holset like everyone used to recommend. It was too big, but my intake temps were low, and I wasn't worried about it grenading itself. My current turbo supposedly has mitsubishi internals, but I have my doubts, so I find myself checking it before every autox.

My Ebay mainfold has held up fine so far. That said, the fitment seriously sucked. I have read the 'updated' version, which is a complete different design with a wastegate provision fits better.

IMHO, you can run just about anything for a BOV; they are incredibly simple, and it's pretty obvious when one is either leaking or failing to open. If you go with something off Ebay, make sure it's adjustable.

If you have the budget, I think Tial is the way to go for a wastegate. I've had zero issues with my Ebay wastegate, and I don't really worry about it failing. Megasquirt has an overboost cut feature that will cut fuel or spark (or both) like your rev limiter if you reach a set manifold pressure. In my experience, it works great.
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Re: Turbo setup for $700-900?

Postby M20_fever » Mon Apr 13, 2015 4:47 pm

Thanks guys, my MAX budget for everything is 1k. Looks like I need to start looking for a deal on a solid turbo and see what coin I would have left after that...
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Re: Turbo setup for $700-900?

Postby 87e30 » Mon Apr 13, 2015 9:32 pm

I found my turbo setup (with m50 manifold, new injectors, intercooler, some piping, BOV, etc, etc) on Craigslist for like $300. Don't remember what brand anything is though. One of these years I'll get around to installing it in something.
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Re: Turbo setup for $700-900?

Postby M20_fever » Tue Apr 14, 2015 2:43 am

Well I already have the ecu, harnesses, coils, and injectors, so really for the 700-900 I need a turbo, fmic, bov, wastgate, manifold, and piping/couplers.
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Re: Turbo setup for $700-900?

Postby Yoshi » Tue Apr 14, 2015 11:19 am

There's always a temp turbo to tide you over. But then you'll wind up redoing exhaust work later. HX35 ftw? Can find them for like 150-300 in good shape.
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Re: Turbo setup for $700-900?

Postby M20_fever » Tue Apr 14, 2015 1:09 pm

Didn't You Run A HX35 On Your m20? Would the lag be terrible even with Anti-lag?
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Re: Turbo setup for $700-900?

Postby Yoshi » Tue Apr 14, 2015 3:04 pm

I did. there's a bunch of combos you can run. You want an 8 blade compressor side and a 12cm non wg exhaust side for quickest spool. They aren't the quickest turbos. But they get the job done for an M20 on low boost. I wouldn't recommend anti lag as it's a journal bearing turbo and they don't seem to hold up very well. But that's just my thought. no experience with anti lag.
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Re: Turbo setup for $700-900?

Postby M20_fever » Tue Apr 14, 2015 10:25 pm

The only thing letting me convince myself to go turbo instead of SC is running Anti-lag on track. I've seen lots of videos of people running it on holesets but not sure of the longevity.
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Re: Turbo setup for $700-900?

Postby Yoshi » Wed Apr 15, 2015 11:09 am

Small enough turbo shouldn't need anti lag :)
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