Castro Motorsport: Sebo's S50 Turbo E30 Sedan

[e30polak]

Hi Guys,

Meant to post this the other week, but I simply haven't had the time. So, about a year ago our friend Sebo came by the shop with a fairly stock 325e 4 door that he wanted some work done to. Sebo is good friends with our buddy Abby (-ak-), which has a clean M20 turbo E30 we built a while ago, and has been an E30 head for the past few years. Needless to say Sebo has received a bit of guidance in his E30 journey from Abby. Luckily Sebo's been keeping track of his build from the beginning, so I can give a full story.

Here's the E30 the day that Sebo bought it, by every definition it was STOCK!




First thing Sebo did was buy some US spec ellipsoid head lights to get rid of the original sealed beams, along with some HIDs.






Next came the plastic bumper swap for the front




Then fresh euro bumper trim and an iS lip




Of course the E30 needed some new shoes, so Sebo grabbed some 16x8 Miro wheels






And he added some Megan coil-overs to stance it properly




Luckily he had some friends to help install the coils












And the finished product










Some euro grilles for the front end




And this is the point in the story where Sebo came to our shop. Initially he had us doe exhaust, and then it snowballed from there. He added some iS side skirts, an E28 Mtech trunk spoiler, and a plastic rear bumper by this time as well.






Seeing how much fun and how quick Abby's turbo E30 was, Sebo initially planned to do a crazy M20 turbo set-up. We planned to use a 666fab twin-scroll top mount manifold, with a gt3076, with a big divided hot-side and dual 44mm wastegates, megasquirt v3, etc. While it would've been an epic M20 set-up, the cost wouldn't have been worth it when a 24v engine could've been built even better for a similar price! Back to the drawing table!


In the mean time he had the car painted BMW Steel Grey








And the finished product










Then we made some all red tail lights for Sebo and added a euro plate filler




Next we sourced Sebo some nice staggered 16x8 & 16x9 BBS RS off a Porsche, which he had filled and drilled to 4x100 and refinished. They look soooooooo good on his car!

[e30polak]

Shortly after getting the wheels, we found a good donor car for Sebo's S50...



Now that we had the motor, we spec'd out the full swap and turbo build for Sebo. Here's what we came up with:

US Spec S50B30
0.140 MLS Head Gasket
Arp2000 Head Studs
Tack welded oil pump nut
Matching ZF310 Trans
F1 Racing Stage 4 Clutch
F1 Chromoly Lightweight Flywheel
Castro Motorsport Built 2.79 LSD
Turbonetics GTK550 Ball Bearing Turbo (.82 exhaust side)
Turbo Blanket
Miller Performance 60# Injector, Blo-Thru MAF & WAR Chip Tuning Package
Tial MV-R 44mm Wastegate
Greddy Blow Off Valve
Blunttech/Rapid Spool Industries Top Mount 24v E30 Turbo Manifold
Custom 3" intercooler and cold-side piping by Castro Motorsport
3" mandrel bent exhaust (Straight back to a Borla Pro-XS)
by Castro Motorsport
Custom aluminum intake manifold + large throttle body by castro Motorsport
God Speed Intercooler
CX Racing Aluminum Radiator
Walbro 255lph Fuel Pump
2 Custom tunes done by Dan Miller in house: conservative 10 psi (370whp/360wtq) & 15 psi (441whp/427wtq)
AEM Uego AFR and Boost gauges


Getting the S50 prepped with the new MLS and Arps






Turbo manifold, turbo, wastegate, and aluminum intake manifold head flange test fit














Sebo's E30 waiting patiently for it's new heart!






Motor in, intercooler mounted, and intercooler piping almost complete

[e30polak]

Close ups of the turbo, intercooler, BOV, downpipe and wastegate before install


























Installed








Wastegate tube and exhaust finished








Installed










Intake piping done, and the car is ready to start!

[e30polak]

Finished product!!!














And the owner himself




Exhaust Clip: http://www.facebook.com/photo.php?v=225292484268026

In Car Videos (50-150) Pulls:

https://vimeo.com/54049772
https://vimeo.com/54050662

[castros]

A lot of time and hard work went into this beast, but the results are well worth it. Sebo's car is sooooooooo much fun to drive!!!

[MR 325]

Such an amazing transformation you guys!

I'm hoping this will be at the dyno day in a couple weeks so I can check it out!

[twhlax3]

that's a hell of an e30. i commend Sebo's taste.

[Sniz]

Looks fantastic, that being said stretched tires on this car is plain dumb.

but we all know that.

what was done to the white e46 vert?

[andrep6810]

Great work!

[3GUNOOO]

Wow dreams do come true! Impeccable build Castro Motorsport.

[Doesnt Matter]

Damn that is perfect, exactly the way I would do it.

[e30polak]

A lot of time and hard work went into this beast, but the results are well worth it. Sebo's car is sooooooooo much fun to drive!!!

Hell yes it is! Dan's tuning is spot on and the car is sooooo streetable, but the moment you give some throttle, the turbo spools and you're off like a bat out of hell!

The 2.79s in this car are awesome, just like Richard's E36!

Such an amazing transformation you guys!

I'm hoping this will be at the dyno day in a couple weeks so I can check it out!

Yes sir it will!

Looks fantastic, that being said stretched tires on this car is plain dumb.

but we all know that.

what was done to the white e46 vert?

Agreed!

The E46 was making 428whp/303wtq, and had a Gintani supercharger set-up.

Great work!

Thanks Andre!

Wow dreams do come true! Impeccable build Castro Motorsport.

Damn that is perfect, exactly the way I would do it.

Thanks!

[kanovic]

wowww

[circa]

Everything about it is perfect.

[Compactive]

Looks it best in this stage.

Car pulls hard, very impressed with the build

[M3Alpine99]

Awesome!

[MikeDitka]

hahahahaha Chris! first video about halfway i hear you saying "I can get him if we run again" had me dying.

this car is truly a masterpiece. I met Sebo at the shop when he was putting the car back together after paint. Space grey was a great choice for color.

[Msilvia]

Surprised to hear the car is still rocking the factory brakes. Great build

[cky751]

awesome transformation

[Les Oltmann]

What an amazing build!!! This is goal, engine wise, once mine poops out.

[jonepeteru]

Damn that is perfect, exactly the way I would do it.

[ladius]

Awesome build. I'll be looking for it on the streets. Love how it says "Castro Auto Repair," sounds like it's just another shop.

[ELIBEEMER]

wow...thats a bad ass e30~!

[Chigga]

Looks it best in this stage.

Car pulls hard, very impressed with the build

+1, that looks amazing and love the build.

[CreekGHarris]

negative points for power window regulators & turbo @ the same time.