Right so im already planning ahead to next year and taking the car off the road again for the winter, there is no way im driving it in winter with the amount of salt and gritt they put on the roads here.
The current engine being built is at the limit of NA engineering for a spitfire infact most say im mental eeking this much performance out of it as it was never the most reliable bottom end. However that is only because the engine shouldnt go above 6k which in lies my problem, to get more power i need more revs which aint possible with the weak block.
Engine swaps are just too easy there is no fun in that, much better to do some extreme engineering.
So the answer. Turbo or supercharge. More torque more power same revs simple!
With the current engine specs im good to go bar fitting a lower compression head which isnt a massive problem, i have one here that just needs machined for my stainless valves which are in the new engine. I have computer controlled ignition which can handle boost, electric fuel pump etc. Forged pistons are being designed and should be available mid next year custom for me.
As far as i can see im going to need the following:
Custom inlet manifold
Custom Exhaust Manifold
Turbo
Blow Off Valve
Charge Cooler
Boost sensitive Fuel Regulator
Turbo spec carb (undecided maybe a 45 dellorto)
small water pump for the turbo.
But i know jack s*** about turbos, so wandering if peeps can help me out here what am i realistically gonna need.
It has only been done once before and that hasnt ever run but here is some pics of what the guy achieved:
So come on guys help me become mental, as far as i can work out i cant fit too big a turbo or else i will just be driving on lag all the time.
The current engine being built is at the limit of NA engineering for a spitfire infact most say im mental eeking this much performance out of it as it was never the most reliable bottom end. However that is only because the engine shouldnt go above 6k which in lies my problem, to get more power i need more revs which aint possible with the weak block.
Engine swaps are just too easy there is no fun in that, much better to do some extreme engineering.
So the answer. Turbo or supercharge. More torque more power same revs simple!
With the current engine specs im good to go bar fitting a lower compression head which isnt a massive problem, i have one here that just needs machined for my stainless valves which are in the new engine. I have computer controlled ignition which can handle boost, electric fuel pump etc. Forged pistons are being designed and should be available mid next year custom for me.
As far as i can see im going to need the following:
Custom inlet manifold
Custom Exhaust Manifold
Turbo
Blow Off Valve
Charge Cooler
Boost sensitive Fuel Regulator
Turbo spec carb (undecided maybe a 45 dellorto)
small water pump for the turbo.
But i know jack s*** about turbos, so wandering if peeps can help me out here what am i realistically gonna need.
It has only been done once before and that hasnt ever run but here is some pics of what the guy achieved:
So come on guys help me become mental, as far as i can work out i cant fit too big a turbo or else i will just be driving on lag all the time.
A coil pack conversion is probably worth it as well to run a bigger spark gap without worrying about the spark being blown out by the charge. 
or an engine swap seem like the best option really. 
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