Aftermarket supercharger kit

Guest · Apr 6, 2005

Hi Folks,

I was trawling through the links on the "Honest John" site (Daily Telegraph motoring writer).
There is a UK supplier of forced induction systems (electronic fans to force air into the engine) which appear to be a bolt-on electronic supercharger for a couple of hundred quid:
http://www.akamoto.co.uk/E-RAM-electric-supercharger.asp

I was wondering if anyone has fitted one of these or has any opinions!!

Cheers
Mark

Guest · Apr 6, 2005

Not sure about that device, there was a simular thing about 7 years ago that bolted between the air intake and claimed some rediculars power out put for £250. I got a pic in my old VW mag i'll dig it out. Probably a load of crap.

924nutter · Apr 6, 2005

This is totally amazing, not! Have a look at the blurb, and it says it gives a one psi boost. Completely underwhelming when you consider that a 924 turbo produces 0.7 bar 0r 10.21 psi ( series one) and 0.6 bar or 8.62 psi (series two) Super or turbo boost is boost. It is generally reckonned that a supercharger needs 15bhp or above to drive it. Electrically that is 15 x 0.74 kw, or roughly 11 kw (11000w) At twelve volts that would require about 960 amps, not the 57 quoted. I believe that this is to be used in conjunction with Nitrous oxide injection, as we are told that the power comes straight from the battery and is safe for our electrical systems as 'it doesn't draw the current from the alternator', and is used in short bursts, like nitrous. So how does the battery not become discharged during use? Of course the power comes from the alternator while it tries to keep up. IMHO I think that the results, if fitted as a stand alone, without the nitrous, would be disapointing.

Guest · Apr 7, 2005

Interseting reading the electrical current draw Vs power output. I wonder how many people have bourght it and took it back!

John Sims · Apr 7, 2005

I like the comment "...Dyno proven..." but they don't happen to publish the before and after dyno results.

Not only does it not seem to achieve much when working but it must screw up the air delivery when not switched on.

Spookily, many, many years ago I had a Skoda coupe - it was given to me. This had a facillity that you could take off the end of the air box and redirect the heater fan to blow air into the open air inlet. I only drove the damn thing once so couldn't tell you if it made any difference.

John Sims · Apr 7, 2005

And another thing.....

Whilst not being up to "fluid dynamics", and the like, is there not the potential for the fan to reduce the air velocity if it isn't able to spin fast enough to accellerate the incomming air flow?

I think that they would perhaps achieve greater power if the fan was used as a type of wind generator to reduce the loading produced by the allternator.

usermjg · Apr 7, 2005

while on the subject has anyone come across or even fitted a 924S Carbon Dynamic Air Box they sell them at Porsche Shop and i was thinking of fitting one, will it give any extra power or is it a waste of time ?

pae · Apr 7, 2005

Sounds like a lot of money for the benefit. The cotton panel filter they (and others) sell is nearly as good and a lot less cash. Have a look at Andrew's site as well for these parts.

http://www.promaxmotorsport.co.uk/

For £170 you can get a panel filter + plugs + chip - should be good for a 15bhp or so. You'll find it under "944/968 PERF KITS", click on "ProMAX Power Kit"

Phil

usermjg · Apr 7, 2005

now you put it like that i think your right it does seam like a lot of cash for not much dash [

]

Marc

924nutter · Apr 7, 2005

The duct diameter can be had in 3.5 inches which would give plenty of cross-sectional area for unrestricted, though maybe turbulent air flow. I think it should be nailed to the after market spoiler kits sold to SAXO/ CORSA teenage drivers, to be used as a propellor. It could be called the Technical Wind Acceleration Tract, or t.w.a.t for short, and be suitably emblazoned around the periphery of the ducting so that we all know to stand well back.

ORIGINAL: John Sims

And another thing.....

Whilst not being up to "fluid dynamics", and the like, is there not the potential for the fan to reduce the air velocity if it isn't able to spin fast enough to accellerate the incomming air flow?

I think that they would perhaps achieve greater power if the fan was used as a type of wind generator to reduce the loading produced by the allternator.

924nutter · Apr 7, 2005

Another thing. Why are we wasting good electrons over this rubbish? When was the article publised? April 1st?

usermjg · Apr 8, 2005

ORIGINAL: 924nutter

Another thing. Why are we wasting good electrons over this rubbish? When was the article publised? April 1st?

its a bit of fun, and for me gets me away from the wife and the soaps for half an hour.shh dont tell her [

]

Marc

pae · Apr 9, 2005

ORIGINAL: usermjg

................and for me gets me away from the wife and the soaps for half an hour.shh dont tell her []

Marc

I assume from this comment she still has the internet-phobia [

], otherwise you are in such trouble, Marc.

Phil

usermjg · Apr 9, 2005

[

]
Yeah she does mind you even if she didn't her mind is else where at the mo and will be for the next 18 years or so i guess.

Little one on the way

Marc