One for the Boffins!

Ok I was wondering whether this is feasible. Firstly am I right in saying all things being equal a fuel injected engine producing say 160bhp will make about double that power at 1 bar of boost provided air fuel ratio, inlet temp etc remains the same and no design restrictions are affecting the engine at that stage.

So if I was to bolt a supercharger to the engine (which will make boost from idle and should keep the shape of the power curve pretty much identical) and increased the injector size by 100% the engine would run fine on the standard ECU map.

Was just thinking that I have a set of 330cc (50% bigger than the standard 215's) injectors sat here doing nothing, If I bolted on a 2nd hand charger off a Merc 1.8 or maybe a Jag (any other suggestions?) And ran 1/2 a bar of boost it could be a very nice low cost conversion to gain 70 bhp ish.

Is my thinking sound?

Ok I was wondering whether this is feasible. Firstly am I right in saying all things being equal a fuel injected engine producing say 160bhp will make about double that power at 1 bar of boost provided air fuel ratio, inlet temp etc remains the same and no design restrictions are affecting the engine at that stage.

So if I was to bolt a supercharger to the engine (which will make boost from idle and should keep the shape of the power curve pretty much identical) and increased the injector size by 100% the engine would run fine on the standard ECU map.

Was just thinking that I have a set of 330cc (50% bigger than the standard 215's) injectors sat here doing nothing, If I bolted on a 2nd hand charger off a Merc 1.8 or maybe a Jag (any other suggestions?) And ran 1/2 a bar of boost it could be a very nice low cost conversion to gain 70 bhp ish.

Is my thinking sound?

to throw a couple of things in..... blower will use some juice to run.... and all the extra heat needs to be disposed of too

Could fit an intercooler without a problem to cool the charge a bit, I know you won't end up making all the power but I just wondered if the theory was sound.

Could fit an intercooler without a problem to cool the charge a bit, I know you won't end up making all the power but I just wondered if the theory was sound.

cue mr Faulks....

Could fit an intercooler without a problem to cool the charge a bit, I know you won't end up making all the power but I just wondered if the theory was sound.

cue mr Faulks....

I was kinda hoping that, but Lee told me he's quite pre-occupied using a different type of dipstick at the moment.

Stunned Monkey will probably know too

Talk to Faulksie but I think you'll just overfuel it to high heaven ...the std ecu map will be of no use whatsoever .

Jag used to quote that their supercharger on the XKs etc used 70bhp to run it at full chat. Obviously it boosted power a lot more than that (overall) but superchargers are parasitic.

And yes fuelling will be a bit more complex than that.

i was only thinking about this the other day but for the atmo engine supercharger using the old blow through carb setup. i remember something like this on a 3litre capri years ago .