discomark10
Well-Known Member
with a charger u get alot more usable torque down low because with a turbo the wheels/engine are spinning fast by the time the torque has built up wich isnt great.
Hamsterberg
Well-Known Member
The vw corrado g60 supercharger looks an easier one to fit
thought it was mine!
New Member
iam sure they only have a 40 thousand mile life span so watch what you buying
Hamsterberg
Well-Known Member
The freebie is the wife's 
Didn't buy the thing, but it's got me thinking now. The motorbike I'm rebuilding is about finished, just needs tyres when the cash is there and it's ready to go out and play. Once that's done I'll need, I mean really NEED, a new project, summat to stop me gettin bored....
Think I'll have a nose around eBay to see what sort of engines and chassis are available for small amounts of cash, if I can spot something nice and tough.......
Didn't buy the thing, but it's got me thinking now. The motorbike I'm rebuilding is about finished, just needs tyres when the cash is there and it's ready to go out and play. Once that's done I'll need, I mean really NEED, a new project, summat to stop me gettin bored....
Think I'll have a nose around eBay to see what sort of engines and chassis are available for small amounts of cash, if I can spot something nice and tough.......
Tazz070299
New Member
No you're not on your own,
Right, how do I convince the missus that we rrrrreeeeeaaalllllyyyyy need a supercharger
It's requirement of the new MOT to improve fuel flow.
Dr_evil
Banned
It's requirement of the new MOT to improve fuel flow.
Its also a requirement to make your engine more powerful
Vagrent
Yaaaar
Vaggy, this is all your fault. There will soon be a spate of threads saying " My supercharged Landy has gone bang what should I do?" and "What size wheels should I put on my supercharged Landy?"
I have had a little look at superchargers, maybe when I get a welder so I can fabricate mounts
Landynut90
New Member
No you're not on your own,
Right, how do I convince the missus that we rrrrreeeeeaaalllllyyyyy need a supercharger
Call it a supersaver!
RKServicing
Active Member
dr evil... im fairly sure im right in saying a supercharger from a mini is to small for a 2.5, especialy if your removing the turbo aswell and going to put on a bigger pulley.
the bigger pulley will reduce the boost pressure on an already small charger.
the already small charger will probably only see an improvement in low end torque so id personaly try and keep the turbo aswel for the mid-hi end...
it is possible to run both and alot of vw cars (youl have seen TSI badges about im sure?) are running it now. could be worth a look to see the ins and outs of how/why,
if you do run just the supercharger bring the boost up with a smaller puller for more than just lower down torque.
id also say pull the engine out and instead of a new crank. have it ground and a set of new race bearings/bolts. you dont want to be doin all that work for 40 miles down the road it starts knocking like a knocking thing from the planet knock!
sorry for the long arsed post but ive been there and played with the pulleys it was a long and expensive que for a not so long ride...hope this helps
the bigger pulley will reduce the boost pressure on an already small charger.
the already small charger will probably only see an improvement in low end torque so id personaly try and keep the turbo aswel for the mid-hi end...
it is possible to run both and alot of vw cars (youl have seen TSI badges about im sure?) are running it now. could be worth a look to see the ins and outs of how/why,
if you do run just the supercharger bring the boost up with a smaller puller for more than just lower down torque.
id also say pull the engine out and instead of a new crank. have it ground and a set of new race bearings/bolts. you dont want to be doin all that work for 40 miles down the road it starts knocking like a knocking thing from the planet knock!
sorry for the long arsed post but ive been there and played with the pulleys it was a long and expensive que for a not so long ride...hope this helps
Dr_evil
Banned
It was just a thought mate but thanks for your input, I was mainly thinking due to the 300tdi's low boost pressure the charger might need to have it dialled down as I assumed a mini would be a high boost charger as its from a cooper. I will look into it properly when I get round to doing this
RKServicing
Active Member
hey i could be wrong, i havent looked at specifics but the one to look for would be volume or CFM cubic feet per minuite. the mini charge has to supply a 1.6 litre engine so will be geared to do so. on a 2.5 it simply wouldnt be enough air to create boost.thats where the smaller pulley would come in. i hope you do have a go at this, and good luck
RKServicing
Active Member
busy busy then. crack on! i look forward to seeing it all happen!
discomark10
Well-Known Member
SLK 230 is a common one witha charger and plenty of old ones about now that will be scrapped
Matt TDi
New Member
As much as I can admire the level of work that's clearly gone into that, I have to say that apart from being something different, it doesn't make sense to supercharge a diesel engine.
Turbochargers provide on demand power, since the boost pressures are directly related to engine load. Superchargers are not, they're related to engine speed. So the engine under higher RPM will always be on boost, which will kill the fuel economy.
Ofcourse a supercharger can offer more boost for more performance, but so can a larger turbo, or a variable geometry turbo can all but elliminate turbo lag, if that's a problem.
There's a reason you don't see supercharged diesels in the mainstream market, and that's because turbos do the same job better. Unless out and out power all the time is what you're after without any concern about the side effects.
Turbochargers provide on demand power, since the boost pressures are directly related to engine load. Superchargers are not, they're related to engine speed. So the engine under higher RPM will always be on boost, which will kill the fuel economy.
Ofcourse a supercharger can offer more boost for more performance, but so can a larger turbo, or a variable geometry turbo can all but elliminate turbo lag, if that's a problem.
There's a reason you don't see supercharged diesels in the mainstream market, and that's because turbos do the same job better. Unless out and out power all the time is what you're after without any concern about the side effects.
Spyderman
New Member
I think this works well.
http://cache.jalopnik.com/assets/images/12/2008/02/medium_Defender_Drag_Racer-478.jpg
http://cache.jalopnik.com/assets/images/12/2008/02/medium_Defender_Drag_Racer-478.jpg
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