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The best way to test Lag , for me, it´s to sit down, seat belt on, drive and feel the car! Try to feel and compare boost vs rpm, using rev counter, and also make some logs of all the ECU parameters for later analysis!
The Tag Heur timming machines in this 100m drag race was a bónus, but I was convinced before that...
We will keep on developing!
Practising to be a mod:pQuote:
Originally Posted by Tombie
Really interesting thread, I'm intrigued to hear about the 2056 becuase I have a feeling that the Alive 'Hybrid' with billet compressor that I have fitted to my vehicle may be exactly this - does anyone know?
I'd love to get more low end kick, but fear the only way to get that right now would be to fit a turbo technics/bas VNT which would sacrifice the top end power I have now... OR to spend another 1700 quid and get the alive VNT and custom manifold.
I was reading with some keen interest a thread by a chap who fitted a supercharger to a 300TDI and found the start of a thread by someone who'd done the same to a TD5 but with no conclusion....
Obviously a supercharger would need considerable fitting/fabrication but the lure of that low down torque is mighty :D
You need to find an engine that stops breaking first :p
Compounds..... ;) :cool: :burnrubber:
The alive hybrids I saw pictures of years ago had a huge compressor wheel. The od may have been around 56mm, but the intake looked significantly larger than the garrett gt2056. This is a larger trim.Quote:
Originally Posted by BennehBoy
The problems with a large trim wheel is surge at lower rpm and less boost due to the larger intake requiring more shaft torque and slowing down the turbine.
But yes the larger trim wheels can move more air if the engine it is bolted to has an operating range which can use it.
Superchargers do not work well on diesels. The result is low power and high fuel consumption.
Guys, this may seem like a sadly basic question, but I think you would be the ones to set me straight. So please bear with me!
What is the difference between a turbo-charger and a super-charger?
A turbocharger takes it's drive power from exhaust heat and pressure. A supercharger takes it's drive power directly from the crank.Quote:
Originally Posted by AndrewMilne
This means a large chunk of the turbochargers drive power is otherwise wasted heat. So they can actually make an engine more efficient. It also means a (correctly sized) turbocharger scales it's operation to fit engine load.
Even in a compound setup?Quote:
Originally Posted by Dougal
Actually it was a 200TDI and not a 300TDI that was compound charged with a supercharger, see this post:
1974 Land Rover Series III - Compound Charged 200TDi | Retro Rides
Interesting project he's got there. But ultimately he'd get a far better result by ditching the supercharger and using those two turbos he's already got. The big turbo is a little bigger than ideal for compound but will still work.Quote:
Originally Posted by BennehBoy
There's a post on here somewhere where I have compared the power figures from a 300Tdi with the stock turbo, a better turbo and a supercharger. All with the same stock fuel settings.