17 replies to this topic

[ryomini]

Great to see lots of advice and opinions here

how much do you want to spend

I've seen Minimania do a special mass centered crank

if you can get the crank balanced to the flywheel it's better

most of the power will come from a better flowing head

 

personally I love the injection

[Liamtg92]

I have an spi also so lets assume we have the best of all the mini configurations. We could argue that carbies are a backward step or just a step back in time. You are on the right track with lightening the engine internals. If you lighten the crank, rods, pistons and flywheel by 10kg total the car sees that as a 120 kg lightening overall in first gear and 80 kg in second. This is due to the torque multiplication of the driven gear x the final drive. This is huge. This is free torque. Back to the injection bit. Lets trust the standard ECU and all its sensors to get us 85 hp. Head mods, 1.4 - 1.5 ratio rockers, LCB and K&N filter should see that easily. SC programmable ECU could see another 5-10 hp. a bigger of the shelf bosch injector and a rolling road tune could release another 5hp. I am at he start of this trek and have ordered a SC super sport head with big exhaust valves and there delta 400 ECU. Got the rockers fitted already. Just finished suspension and brakes going light and adjustable. Mostly KAD stuff. Head goes on next week. 5 speed gearbox ordered and illl throw in a SW-5 and light crank, rods, pistons and lifters once split. Electric fan and electric water pump will all help with torque multiplication and parasitic loses. I'm building a hillclimb car that will be good everywhere.

Alright Mate, how's this getting on??

[brivinci]

Right on! I want to see a build thread on that setup Wazzah!