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Old 11-13-2017, 03:49 PM   #1
ElHefe910
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Default I know.. twin turbo B230f

So I have a spare 240 with lh2.4 and big rods. I am getting into welding and getting better at it. I wasn't trying anything crazy. I was hoping to adapt the twin 11gs that come off of first generation S80T6 or XC90 which are plentiful at the pull apart junk yard, and run microsquirt or something on that level. Does anyone have any mock manifolds that I can take ideas from. PS. Don't say just put a hx35 on it or something because my other Redbook has a 16v with custom 8.5.1 cr and rsport rods with a k24 for now.
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Old 11-13-2017, 04:47 PM   #2
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That actually seems like it’d be pretty neat. Those little turbos are tiny. I have no idea about manifolds though. Maybe you could copy what the s80 manifolds look like, just minus 1 cylinder on each one?

Essentially just using 2 cylinders to spool each turbo.



I look forward to updates.
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Old 11-13-2017, 05:04 PM   #3
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Originally Posted by PromiseRing View Post
That actually seems like it’d be pretty neat. Those little turbos are tiny. I have no idea about manifolds though. Maybe you could copy what the s80 manifolds look like, just minus 1 cylinder on each one?

Essentially just using 2 cylinders to spool each turbo.



I look forward to updates.
That's what I had in mind. I recently rode in a BMW 2.0TT and it had a fair amount of tq and hp and plenty of low end power and sustainable boost pressure at higher rpms. The td03 11gs are small in fact small enough that Hayabusa drag bikes put them on their bikes, but I think it could make a very balanced 250 whp 240.
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Old 11-13-2017, 05:10 PM   #4
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The OEM T6 manifoldso are cast I think so it would be hard to modify that one, but I was thinking of getting a flange and starting from there. I think it has to be somewhat compact due to the passenger strut housing. I'm just trying to utilize what we have available for Volvo at the junkyards these days and who knows maybe it could turn into something, however I do think it probably would need microsquirt or something like that to tune it correctly
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Old 11-13-2017, 05:11 PM   #5
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It's been done before. There is a guy in the UK that's done it on a hotrod.
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Old 11-13-2017, 05:14 PM   #6
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It's been done before. There is a guy in the UK that's done it on a hotrod.
Yeah I imagine it has been done before, just don't see it often most likely due to the fact it's easier for single turbo
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Old 11-13-2017, 05:19 PM   #7
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I just see them at the pull apart everywhere and its usually the transmision that put it there not the motor. It's not like 10 years ago when every given saab, Volvo and MB still had their turbos intact at the junkyard.
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Old 11-13-2017, 05:19 PM   #8
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Old 11-13-2017, 05:54 PM   #9
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Looks pretty effecient. No windshield washer fluid but that is not a concern by a long shot. From that picture it looks like a simple 4 cylinder TT compact manifold with up-pipes to put the turbos in a location where there is little to no obstruction
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Old 11-13-2017, 06:40 PM   #10
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I think if you were going to take this seriously you’d just do it. I personally think it might be useless on a 4 cyl unless you’re considering a compound setup with a small turbo feeding into a larger one.

What are your plans for the car? That would help you in your decision making. Otherwise...
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Old 11-13-2017, 07:05 PM   #11
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I think if you were going to take this seriously you’d just do it. I personally think it might be useless on a 4 cyl unless you’re considering a compound setup with a small turbo feeding into a larger one.

What are your plans for the car? That would help you in your decision making. Otherwise...
I think a single TD0311g would be a good fit for 2 cylinders on a B230f. Plans for the car is just a 250whp but I want to see if a small TT setup would give the car a much broader powerband. Sure I could use an HX35 and spray gas down low but that's not what I am trying to do. The car is a project and sitting in my garage now just looking to hone my welding skills and try something unique. I planned on using a microsquirt unit off of my old jet ski and trying to adapt a TT setup from the junkyard and the Volvo seems to be the best choice. It wouldn't necessarily be a daily driver because I have so many cars and toys already. I got the car for basically free. I was hoping to get ideas for a manifold design
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Old 11-13-2017, 07:16 PM   #12
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pairing cylinders is going to be iffy. I think you'd want to pair 1-4 and 2-3... so it may be a bit wonky to work out runner length.
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Old 11-13-2017, 07:25 PM   #13
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pairing cylinders is going to be iffy. I think you'd want to pair 1-4 and 2-3... so it may be a bit wonky to work out runner length.
Good advice I haven't taken that into consideration much. I figured most of the kinks could be worked out through tuning, maybe megasquirt with 2 injectors per cylinder might help or might not but I am not trying to do that anyway as I plan to run micro
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Old 11-13-2017, 07:43 PM   #14
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Put an HX35 on it
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Old 11-13-2017, 07:51 PM   #15
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Originally Posted by ElHefe910 View Post
Good advice I haven't taken that into consideration much. I figured most of the kinks could be worked out through tuning, maybe megasquirt with 2 injectors per cylinder might help or might not but I am not trying to do that anyway as I plan to run micro
running a NA b230 manifold, then two J pipes out to the turbos will keep the pairing correct, but you might need 2 feet of j pipe.... Well actually thats about what I have and my 15g on a 2.0l spools and builds 15psi before 3100rpm, 7# by 2800, so its not too bad.
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Old 11-13-2017, 08:03 PM   #16
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What 2.0 BMW is twin turbo? Seems like you’re confusing it with twin scroll.

A properly sized single on a red block will outperform hacked in twins all day.
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Old 11-13-2017, 08:10 PM   #17
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Originally Posted by gross polluter View Post
What 2.0 BMW is twin turbo? Seems like you’re confusing it with twin scroll.

A properly sized single on a red block will outperform hacked in twins all day.
Maybe I am because I didn't think BMW made a 4cyl TT. My friend got a brand new X3 2.8X drive rental while he was looking for a car He claimed it was twin turbo. I didn't look at the motor but he said it said twin charged or something like that IDK the thing was pretty quick
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Old 11-13-2017, 08:17 PM   #18
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N20 engine. Single turbo.

BMW calls it “Twin Power Turbo” becuase of the twin scroll.

It’s just a single turbo 4 cylinder engine. Nothing fancy.
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Old 11-13-2017, 08:24 PM   #19
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N20 engine. Single turbo.

BMW calls it “Twin Power Turbo” becuase of the twin scroll.

It’s just a single turbo 4 cylinder engine. Nothing fancy.
Gotcha I thought that it might be BMW'so answer to the Volvo 2.0 4cyl TT+electric supercharger motor or something like that even though I have never seen one of those Volvo motors but Polestar got it to 425hp.
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Old 11-13-2017, 08:30 PM   #20
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Do it to prove everybody wrong.
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Old 11-13-2017, 08:42 PM   #21
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Do it to prove everybody wrong.
I'm kind of old school and don't know all the recent websites, but I am sure Yoshifab can sell me an 8v header/manifold flange to start with. If anyone has a flange for sale let me know.
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Old 11-13-2017, 08:56 PM   #22
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Do it to prove everybody wrong.
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Old 11-13-2017, 09:00 PM   #23
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Originally Posted by ElHefe910 View Post
I'm kind of old school and don't know all the recent websites, but I am sure Yoshifab can sell me an 8v header/manifold flange to start with. If anyone has a flange for sale let me know.
I do, and a twin scroll turbo flange for an EVO 8 turbo, and a twin scroll EVO 8 turbo. Buy my crap!
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Old 11-13-2017, 09:15 PM   #24
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I do, and a twin scroll turbo flange for an EVO 8 turbo, and a twin scroll EVO 8 turbo. Buy my crap!
I will buy the manifold flange. But someone could have a real fast 850 if they buy both our stuff..your turbo and my rods and pistons
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Old 11-13-2017, 09:45 PM   #25
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Do it to prove everybody wrong.
then supercharge it and make us all cry.
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