Im not moaning at all, im trying to save you money????
Edit-Exactly as Scott said..............
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Im not moaning at all, im trying to save you money????
Edit-Exactly as Scott said..............
this it just the test/design engine, not to bothered if it blows up, aslong as it dont take the cams out when it blows :)
save money lol
spend it, its no good when your dead, spend it all now :p
:)
THat does actually look like it'll do the job nicely.
Where did you get the pully(s) from?
well i doubt ill ever find another one
its just one pulley, i found the entire alt covered in crap in the corner of the scrappy, as i was walking out the door
1986 2L petrol tranny lol
and with that pulley on its slightly larger so a halfords 775a belt fits the charger perfect :)
the bit i'm worried about is that you are using the altenator as an idler on the drive to the charger. the charger will consume maybe 50hp to produce the extra 50 odd hp of boost. the v belts onto an alternator will be marginal at best to handle that, let alone the bushes of an alternator.
Nice bit of luck then
I don't think superchargers would have been used so widely if they required the same level of bhp as they create!Quote:
Originally Posted by mowgli
I'd expect a 20% leach in output bhp to drive itself, but I have some heavy reservations about a v-belt being able to transmit enough energy to drive the blower (when it's compressing air).
But for now I just wanna see if it will work, might do, might not.
theres NO other way of getting it to run lol
unless i run a pulley from the cam belt lol
but then the belt would run thru the TB lol
Yeah you could, but it requires moving other things like the re-routing the exhaust manifold for example.
trust me. a turbo or a supercharger when fitted to a 100 hp engine, would easily make the engine kick out 150hp. but if you could remove the drive for the supercharger from the engine & power it from an elec motor, the engine would kick out 200hp. they waste a lot of energy to make powerQuote:
Originally Posted by Johnny A
yeah have it on the front lol,Quote:
Originally Posted by Johnny A
erm, it would not fit, the rads even in the way, the thing is huge lol
nick, you may need to make a new intake manifold & get the charger closer.... is it a suck thru or a blow thru design????
Trouble is, you dont get free power. An eleccy motor would need a fapping great alternator to power it to the speeds you would need to get it to perform, which would probably sap just as much power from the motor as the pulley would.Quote:
Originally Posted by mowgli
Turbo motors use power spinning up the turbo, It doesnt spin for free!
Both methods are worth the losses for the gains, Turbo's may be more efficient, but SG's dont come with the inherent heat problems, and thats what's always put me off tubbies, so if I ever went forced induction, it would be a blower every time methinks.
erm its erm,Quote:
Originally Posted by mowgli
well i put my hand on it and it nearly sucked my hands into the screws at tick over, and it blew a fag packet of the wing on stick over lol
it sounds cool aswell :thumb:Quote:
Originally Posted by Lee
Nick, if its sucking too much fit a bigger pulley to the blower. TBH i would start with lower boost anyway, but then this is you and I know you will be wanting to snap all the head bolts on the first go lol lol
Limpy you Poof! I know you would go for hard suck straight off! Your not kidding anyone.
You know me too well :(
ftw :thumb:Quote:
Originally Posted by Lee
That I do my loverrrrr:thumb:Quote:
Originally Posted by Lee
i was simply using the argument about just how much power a supercharger uses. in the usa, they always used to take all the ancillaries & power them by an external motor, ie, waterpump, oil pump, cooling fan, no alternator or aircon fitted to give a gross output of their engines.... legally, they could do this & then come out with outrageous claims for hp, ie 440hp in a std family sedan, then they changed the laws & suddenly the cars had 250hp.Quote:
Originally Posted by Lee
the elec motor i was referring to was an externally driven ac motor. as in a test bed.
they have to do that due to there 7l v10 supercharged engine only produce 5bhp anyway lol
in the cooper, i take it that the blower is blowing thru the charge cooler, then thru the manifold (which contains the injectors)
and things like a hEaton are very inefficient in the S/C world... takes about 30bhp to push 280Bhp's (if not more for engine friction) worth of air into a Z22SE.... So all the "tuners" taking the engines to the 'safe' limit of 250bhp for the rods are actually humping nearer 300bhp into it lol
there a little stange, as they have two throttle bodys, to shut the thing up
air filter - tb - charger - cooler - tb - inlet with injectors
tbh im going for pulling power as small block touqre is weak lolQuote:
Originally Posted by Stuart
are the two TB's linked? as the one post charger should be for boost recirc as a crude boost limiter
i have not really looked into it, but its something to do with the engine braking and run down,
ill just shove mine out a chav valve lol
It's swings and roundabouts tho, the eaton gives you psi at any rpm but it's trade off is less overall bhp due to heat. It's a good blower for daily driver cars as it's a positive displacement pump (air in compressed after the blower), so with the use of a bypass valve its cruising bhp losses are less then 1bhp.Quote:
Originally Posted by Stuart
The twin screw produces less heat but compresses it's air inside the unit itself - meaning as long as the blower is spinning it's eating up bhp. Best option for track day and drag cars.
The centrafugal is the least heat generating unit but won't make boost until it overcomes it's gearing setup. Recently peeps have been gearing them to produce boost low down in the rev range and run a wastegate to bleed off boost higher up which works... but makes the blower use more bhp to drive itself.
I think if money wasn't an issue a twin screw blower and a electro-magnetic clutch system would be the way to go, but in Baxter's case the Eaton works well, is the cheapest option and will give him a nice big slab of torque.
I used to think 'wow that LET with a GT30 turbo produces 450bhp isn't that cool', then you look at the power curve and it have a very spiky peak power because the turbo is so big. A supercharged LET running the same boost might only make 380bhp but its producing a high output for much more of the rpm range. This makes for a drivable car and IMO and faster car round a track.
I am using an Eaton for my LET (no turbo), yeah its a monster heat generator (no more than a turbo). But a nice FMIC and twin port Aquamist kit has got my back :thumb:
right quicky
im going to use a astra TD airbox on the charger, but die to all the funny shapes ect:
would i beable to use this?
there will be no boost in this pipe
http://cgi.ebay.co.uk/COLD-AIR-FEED-INDUCTION-PIPE-DUCTING-3-76MM-1-METRE_W0QQitemZ270430259895QQcmdZViewItemQQptZUK_C arsParts_Vehicles_CarParts_SM?hash=item3ef6e64ab7& _trksid=p3286.c0.m14&_trkparms=65%3A12|66%3A2|39%3 A1|72%3A1689|293%3A1|294%3A50
sort little video, 4psi at 1500rpm, tick over it lumpy due to plugs covered in oil
i think i need a stronger pipe lol
http://i11.photobucket.com/albums/a1..._Picture-4.jpg
It sounds like a lawnmower lol
you are off your rocker dude!
BUT! I hope you get it so it actually works 100%
will be cool if it does.
Scott
Does it drive???
I think you need a pipe designed to hold boost :p
Is that not just some random airbox rubber hose? Lol
tehehe, its from a inlet for a gte airboxQuote:
Originally Posted by Adam
if you see my msn name i think you will find out lolQuote:
Originally Posted by Adam
and back in bits lol
http://i11.photobucket.com/albums/a1...cture003-3.jpg
managed to seal it and make the outlet bigger for the charger,
i can make it hold 10psi on tickover, but now got a problem blowing pipes lol
http://i11.photobucket.com/albums/a1...cture006-2.jpg
Common, get this sorted mate, i really want to see you succeed, and see you make a good job of it, no more bodging!