Tuning electric supercharger - has anybody done one

[Metalguru3]

Hi everyone,
there's loads of debate on the web as to whether these things work or not. I've seen them made from half a turbo with a high speed motor which kicks in when you use full throttle.
Just as a theoretical exercise, if you paid out several hundred pounds for one of these, what would you have to do the a bog standard engine/electronics etc to get it to work.
Would one of these things be the cheapest way to get extra horsepower per £, and if not what would be the cheapest and least inconvenient way to gain, say 5HP,10HP, 20HP or 30HP if poss on a bog standard engine
I have competed in a couple of autotests in the last few weeks and I'm in the "up to 1400cc" class, so I'm hopelessly outpaced by 1400 Micras and 1275 Minis on the longer tests, but can beat them on the short twisty tests, so a useable extra chunk of power might make the yellow peril a bit more competitive

 

[Eklipze3k]

 

[dave]

you would be better off with a cat n toast turbine

 

[blu73]

 

[Ouby]

Ignoring the budget cheapo cr*p that Eklipse has pointed out (ones that will only fool morons into thinking they will get huge improvements in performance) getting more power by improving the amount of air is theoretically correct. The MPI ECU will increase the amount of fuel being injected to richen the mix if it's measuring a lean burn. We're not talking about a huge hike in performance here but it might give you an edge. Forget spending several hundred pounds on some mutant hybrid half a turbo -even if it does work the ECU only has around an 11% tolerance margin for air/fuel. The best bang for bucks will be the tried & tested method of a 16v TB or getting your TB bored out by https://www.fiatforum.com/members/sparky5/

 

[flisko]

you would be better off with a cat n toast turbine

i had a chuckle over that one uncle dave

 

[The Black Box]

Have you checked the rules regarding forced induction most Motorsport have a 30% capacity increase when forced induction is present so it'll push you into a higher category where you still won't be competitive

Best as said is a bigger tb, if your running the mpi inlet search out a p75 inlet,866 cam etc. there has been real 100hp 1.1 (torefeos,rallycinqs car etc) so good power is possible not easy and not cheap.

 

[fingers99]

I think it's been stated a top fuel dragster's supercharger would require the bhp equivalent of a Viper just to run it. Scale it down a little.

You're still looking at a huge electric motor with equally huge demands.

There remain the pretty much all pervasive motorsport rules on forced induction, and you've still got to sort the fuelling out.

A neater solution might be to use one cylinder as a simple air compressor, but it surely won't be simple!

 

[blu73]

i think that roadkill video says it all really, they do see gains but negligible ones.. The theory is in principle sound but still stupid and pointless. Safe to say if they only get a tiny tiny increase from that many big leaf blowers then there is no little in-line fan in existence that will do anything except restrict airflow on an intake.... remember an engine is basically an airpump and they are pretty damn good at pumping air.