450bhp 20b Mazda3 race car

[Speedworks]

Lopez was the name yes.  The chassis is some sort of a half tub Mazda 3 chassis so not a full body shell nor a silhouette. The engine is a pp 20B wit just over 400 hp (safe tune) but can produce +- 450 at max.

They have 2 engines which are being switched out when needed and sen dback to the US for rebuilds

[Martin Price]

I was thinking of a n/a 20b for my car but I already had the 7 engine so it made sense to use it but I\'d love to get one in eventually.
20k seems like a lot of money though, I suppose a n/a engine whether its a 13b or 20b compared to a turbo engine needs all different internals due to the fact its going to be making its power at around 12k rather than 8k.

[Grant Monkhouse]

The internal are the same. The differences being that the eshaft is longer and one of the centre plates is twice as thick to get the side port same configuration, but a side port isn\'t used in a PP setup. I should imagine there are modification to the shaft to be made for oil cooling and balancing.

The engine will make the power below 10,000 rpm it all depends on your port shape and Inlet track length to bring the torque lower down the rev range.

[Mir]

If running fuel injection you would be looking at around £25,000.00+

Agreed

Mir