DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Rb20det turbo on a 1.6

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Old 11-09-2017, 01:01 PM
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Default Rb20det turbo on a 1.6

Has anyone ever attempted this? Im going through the building process at the moment and hitting snags as far as downpipes go (need custom work done as the flange is a 6 bolt off the turbo) and what not. Just wanted to see if anyone had any insight as I'm debating getting rid of the rb unit and getting a t28 instead.
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Old 11-09-2017, 01:03 PM
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Better yet, get a 2560. Dont use that piece of **** in your hands.
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Old 11-09-2017, 01:04 PM
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just dont
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Old 11-09-2017, 01:07 PM
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I've used a ball bearing basically upgrade version of what you have, an HKS2535 I believe it was.

Had to make custom mani and downpipe for it. Otherwise nothing different.
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Old 11-09-2017, 01:10 PM
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Originally Posted by ryansmoneypit
Better yet, get a 2560. Dont use that piece of **** in your hands.
Whats so bad about that unit? it seems ok as far as design and I think they were ball bearing from the factory
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Old 11-09-2017, 01:11 PM
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why don't you actually post the full specs of the turbo instead of "seems" and "I think"
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Old 11-09-2017, 01:17 PM
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Originally Posted by 18psi
why don't you actually post the full specs of the turbo instead of "seems" and "I think"
the reaserch I have done on the unit says that they were ball bearing from factory but I may be wrong. I obviously know less than others when it comes down to it so I'm asking for guidance not rudeness on others part
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Old 11-09-2017, 01:22 PM
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I don't care what you're asking. I'm telling you to post up specs and links/references to the info you researched so we know you actually did some research. Otherwise no one will care to help you and you can enjoy your worthless thread.

every other lazy n00b says "in the research I've done" when prefacing their random clueless question.

the ones that actually put in the time, we reward with tons of info and input. We are actually really nice here
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Old 11-09-2017, 01:43 PM
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MT is like my middle school math class.

You only get credit if you show all your work.
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Old 11-09-2017, 01:56 PM
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And when you copy off others and too stupid to change the name and copy that too, you get detention.
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Old 11-09-2017, 02:20 PM
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I'm pretty sure the rb20det turbos used a ceramic wheel that is known to explode. Probably not a good choice as far as reliability goes.
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Old 11-09-2017, 02:25 PM
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Originally Posted by 18psi
And when you copy off others and too stupid to change the name and copy that too, you get detention detonation.
Fixed
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Old 11-09-2017, 02:29 PM
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Originally Posted by rider_alex89
Whats so bad about that unit? it seems ok as far as design and I think they were ball bearing from the factory
We could start with the fact that even you stated, it is impossible to find a manifold and down-pipe for this turbo. Unless you are a pretty decent fabricator with a shop full of equipment, then using an oddball turbo will get really expensive, very fast.
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Old 11-09-2017, 02:55 PM
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Originally Posted by 18psi
I don't care what you're asking. I'm telling you to post up specs and links/references to the info you researched so we know you actually did some research. Otherwise no one will care to help you and you can enjoy your worthless thread.

every other lazy n00b says "in the research I've done" when prefacing their random clueless question.

the ones that actually put in the time, we reward with tons of info and input. We are actually really nice here
Admitedly the time i put into research on this unit was in the hours area after I bought it but because i was usually aided by blue moon it made it not very good research. Im definetely considering another unit as I have tried to build the kit around the turbo and not put in proper hours on it. To tell the truth I was actually going to pick up another turbo (t3/t4) which probably wouldnt have been the best choice but saw this one and through because it was smaller it would better suit my power goals.
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Old 11-09-2017, 02:58 PM
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Originally Posted by ryansmoneypit
We could start with the fact that even you stated, it is impossible to find a manifold and down-pipe for this turbo. Unless you are a pretty decent fabricator with a shop full of equipment, then using an oddball turbo will get really expensive, very fast.
Youd have to start with the basic pipe layout and make it fit a flange (which i do have both of) but I goofed on buyin a manifold that was for a t2 becasue somewhere in my research I failed to note that its a t3 flange so I got a manifold for a t2 instead.
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Old 11-09-2017, 03:01 PM
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its gonna spool like poo on your 1.6 and is not a very good turbo overall.
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Old 11-09-2017, 03:12 PM
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Originally Posted by 18psi
its gonna spool like poo on your 1.6 and is not a very good turbo overall.
Yeah cant even clock it properly because the damn wastgate actuator is bolted to the front. like into the compressor housing on the front. Waste of 60 bucks for sure
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Old 11-09-2017, 04:58 PM
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That's a pretty cheap way to learn that lesson especially since you can dump it now...
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Old 11-09-2017, 06:56 PM
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"All the research that i have done" = oh cool a $60 turbo. (chugs down the bluemoon), seems fairly decent size for a miata. >>>> clicks buy-it-now button,

Gets turbo in the mail, goes online, sees ZERO manifolds that would work and signs up for Miataturbo.net and here we are.

true story.
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Old 11-09-2017, 07:11 PM
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Sounds like you ended up with a T2 manifold though. That's good. That'll work well with an SR20 or GT2554.

Assuming it's a quality T2 manifold and not the $100 ebay special.
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