Inliners International Forums General Discussion Blown and Injected TURBO '53 BELAIR (BRAZIL)

a video of my brother´s 1953 Belair turbo 250.

Some specs:

Engine: 250, std, mild ported head, stock pistons, rods and crank, 8,5:1 compression ratio, SPA turbo manifold, custom sheet metal intake manifold, 73 mm throtle body, EFI, 12 injectors (2 per cilinder) Digipulse FULL 12 ECU, 2 Bosch GTI Fuel pump, ethanol Fuel around 400 hp on 18 psi.

Car: 1953 Belair, custom IFS setup, rack and pinion, Weld wheels and 4 wheel disc brakes.

Francisco. (Brazil)

http://www.youtube.com/watch?v=HWp9HfO7_ms

Very nice,sounds great too!
Any 1/4 mile times?
MBHD

Sounds and looks impressive.

Stock pistons - cast? From what I've read, mostly on this forum, I thought cast pistons were much riskier, less durable than forged.

Why twelve injectors? For better injection control or volume?

Thanks.

Hank: didn't run the 1/4 mile Yet, ,but sholud run mid to high 12's.

jim W: Yes, cast pistons are used, and they much weaker than forged ones. I told my brother he is pushing the envelope. In fact, he already broke some ring lands, but that was due to a lean mixture (he is stiil pushing the envelope, since this engine produces around 380 hp and 400 fl/lbs of torque!). It's fixed now. Keep away detonation, run on the rich side and hold on for your life (and engine´s life). Ethanol has a much higher octane rating (around 103) than pump gas and promotes a cooler intake charge. 12 injectors are used for beter control AND volume. 6 Ford racing re used when running normally aspirated and more 6 (custom modified Bosch injectors) when under boost.

An alcohol engine has a big apetite, around 30% more than a gasoline engine, so fuel delivery is critical.