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The Buchka 242 Street Car

2fast242gt said:
any b234 240.

i have to ask, why the b234? less work than b230 besides mounts? by the way very nice! cant wait to see more!
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I didn't know the B234 had different mounts.

Having said that, it looks like a similar design might also work well for a B23 or B230 in a 240? They look like they'd control engine movement better than normal 240 mounts.
 
What's this? Secret switch?

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And, what size cutter did you use on the flywheel? 10-12mm or so? Have you tried this before with a standard ECU/sensor? I'm about to do the same, but I'm not sure if it'll work.

Thanks
 
crogthomas said:
What's this? Secret switch?

And, what size cutter did you use on the flywheel? 10-12mm or so? Have you tried this before with a standard ECU/sensor? I'm about to do the same, but I'm not sure if it'll work.

Thanks
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That's for adjusting boost by turning the original vent control knob. Here's a thread I posted earlier: http://forums.turbobricks.com/showthread.php?t=284588

I think I used a 3/8" endmill. I haven't turned the engine over yet, but 77volvo245 has been selling largely identical flywheels for a while and they seem to work great: http://forums.turbobricks.com/showthread.php?t=251267
 
Dauntless said:
I didn't know the B234 had different mounts.

Having said that, it looks like a similar design might also work well for a B23 or B230 in a 240? They look like they'd control engine movement better than normal 240 mounts.
Click to expand...

I asked him about it the other day...I think I'm gonna try and whip some up for my car, and if they're successful, I'll see about doing a GB of some sort. I've got access to a 3 axis CNC, the ability to draw basic stuff in CAD and a buddy who's an excellent welder.

Now I just need a couple old torque rods...
 
propav8r said:
I asked him about it the other day...I think I'm gonna try and whip some up for my car, and if they're successful, I'll see about doing a GB of some sort. I've got access to a 3 axis CNC, the ability to draw basic stuff in CAD and a buddy who's an excellent welder.

Now I just need a couple old torque rods...
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That would be excellent. I'm sure many of us would like a bolt on solution which controls engine movement properly while also lasting a long time.

I'd definitely buy a set from the first batch.
 
Downpipe got some love tonight. Welded up a couple of pinholes, added an O2 bung, and sanded the flange flat.

Alex made this nice aluminum catch can that'll go next to the wiper motor.
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I just made some -10 weld fittings for it.
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-10 to -10 coupler from McMaster ($7). Chop it in half and dress the ends. Took me about 10 minutes to do these four. Cheaper than paying $10 a piece for weld fittings.
 
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Karl Buchka said:
-10 to -10 coupler from McMaster ($7). Chop it in half and dress the ends. Took me about 10 minutes to do these four. Cheaper than paying $10 a piece for weld fittings.
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Good idea. These are the sort of details I love. Keep them coming.
 
Welded a bracket to the compressor housing to hold the wastegate actuator. The bracket has M6 rivnuts in it.
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I have no idea where this actuator came from, but I tested it and it cracks at 4psi and is wide open at 12psi.

crogthomas said:
Thanks, I'd not seen that before. What clutch are you going to use? I'm going to fit a 850R clutch connecting to a M90 box.
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It's a mystery pressure plate with an unsprung 4-puck disc.
 
Karl Buchka said:
-10 to -10 coupler from McMaster ($7). Chop it in half and dress the ends. Took me about 10 minutes to do these four. Cheaper than paying $10 a piece for weld fittings.
Click to expand...

Be careful doing that for anything that will see hard use- a random Mcmaster thing is probably 6061 but many AN fittings are not made from alloy that's considered weldable (2024 is common).
 
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