BBiAutosport

Attachment 1344394

BBi Autosport Lightweight 3.8 Liter Engine Build for Magnus Walker's Latest 964 Project

Modern Performance Meets Old School Restoration



BBi Autosport is excited to announce that air-cooled Porsche builder/collector Magnus Walker commissioned us to build a lightweight 3.8 liter engine for his latest Porsche 964 project. Based off a 993 engine, here are some quick specifications below and please stay tuned for updates!

• MAHLE 109mm Cylinder Sleeve 102mm Bore Pistons 109mm O.D. Cylinder
• BBi Cup Spec Rods by Carrillo
• Knife Edged &Balanced Crank
• BBi Spec Heads w/ Aasco valves
• Titanium Retainer for Lightweight Valve Contro
• Porsche 993 RSR cams
• Rothsport 48mm Individual Throttle Bodies
• Porsche 996 GT3 Cup Intake Manifold
• MoTeC M48 ECU
• Rothsport Headers
• Rothsport Wiring Harness

- Jerry@BBiAutosport.com

GBX

gunna be sweet....but kinda wish he stuck with a 964 motor

Mr.Alex

Through all the build updates up to now I was not really jealous, but now thats changed. Look forward to more pics.

Recently some great engine build threads on here.

DobermanDad

Nice! Thank you for sharing. Can't wait to see the end results.

Jjm4life

Sounds like gonna be a quick car. Any idea what weight he's shooting for?

BBiAutosport

Thanks everyone for the kind words! We don't have any accurate details to Magnus' build as we are only responsible for the engine.

Engine case thoroughly cleaned in the ultrasonic cleaner











Balancing an engine is a critical step at BBi. For this particular engine, the components are weighed and matched within 0.3 gram. In comparison, factory tolerance is approximately within 5 grams.





- Jerry@BBiAutosport.com

Raven 666

Subscribed ....................

BLACK-BETTY

Can't beat a nice N/A high revving 3.8 on ITBs - I managed 360HP and about the same torque. Watch how you spec the cams as your stock gearbox ratios won't always have you in the power band... unless you build a box to suit.

Any boat tailing for the case?
Are you using and porting the original heads - intake and exhaust? What sizes?

I'd add ARP head studs, as well as heavy duty valve springs...

HiWind

great start! looking forwrd to the updates ... Motec M48? or was that a typo and it should be M84?

Vandit

When did you all get the motor together? Or are these photos real-time and it's really coming together on the week before SEMA?

hockenheimr

Soooo many questions! Is that a 993 crank that has been knife-edged? When you say 'lightweight' are you referring to his car or the engine parts?

Thanks, and Awesome build!

BBiAutosport

Thank you everyone for the chiming in.

Yes, it is a 993 crank and we were referring to the weight of the engine internals

This is the unit that we are using
http://www.motec.com/m48/m48overview/

The engine is currently still being assembled. Unfortunately, neither the car or Magnus will be at SEMA this year.

Magnus canceled his SEMA appearance this year to attend to a personal family matter. More details on his Instagram: https://instagram.com/magnuswalker/

BBiAutosport

- Jerry@BBiAutosport.com

HiWind

Yes a solid old campaigner .. but it's DOS based, no?
Do you have an old PC for that or how do you tune it?

BBiAutosport