Destiny of WORKD-6

[67rce]

thats exactly my point the risk of blowing up a EF 6 because some cheap ass work shop tells u they be doin a good job supercharging ur motor but get some young apprentice to do the job. Plus not to metion once u blow up ur motor u have no ride for the family day out! no come on mate Think about heaps of stories of motors (ford or non ford) blowing up because their made to do boost performance when their not designed for it in the first place. Unless you go to a work shop with thr rep for this guid of thing such as Bob Remarno work shop and they charge you well over $10 000 for a proper built boosted 6. nup i Think XR6T is cheaper quicker and more reliable

TUFED6, Rollin, BI6TIM, EFFalcon, snypereb, Malakai and a few others on here have or have had stock bottom ends with boost

[EFFalcon]

stock motor + 11psi = 225rwkw daily driven

[edfairmont4.0]

stock motor + 11psi = 225rwkw daily driven

nahh man thats not good because your motor isnt "built" for it....

[pHaT`eL]

How dare you go against what a workshop has said. Id say an Atomic AU motor purpose built for boost would do the job. But most cars on here are standard or rebuilt standard motors, there doing just fine

[vulpine]

Found this info at another forum thanks to Warpspeed

The great myth exposed !

A supercharger does indeed require power to drive it. The power required is actually mass airflow times boost. You also need to include the extra power required due to efficieny losses in the blower caused by heating of the air above that which occurs because of compression. Also belt drive losses need to be taken into account.

If you do the maths you will probably find between ten and twenty percent of crankshaft power is lost driving the blower in a typical modern street engine.

Now a turbo also requires power to drive it. The power developed by the exhaust turbine is once again mass airflow times boost, plus efficiency losses, plus bearing losses. If your supercharger has 70% adiabatic efficiency, and your turbo runs at about 70% adiabatic efficiency then the actual shaft horsepower required is going to be identical !

But to drive the exhaust turbine there must be a pressure drop across the exhaust housing and turbine wheel. This is basic thermodynamics. you cannot get power out of something without putting power in.

If you have ever measured the pressure drop across the exhaust turbine you will find it will be typically betwwen twice boost pressure, down to the same as boost pressure if you are really lucky.

But how does this extra back pressure in the exhaust manifold effect engine power ? Well again research has been done into this and the results have been published.

Typically an engine looses 1% of crankshaft power for each psi of back pressure in the exhaust manifold. Surprise ! ! you are going to lose about ten to twenty percent of crankshaft power to drive your turbo, exactly the same as that required to drive a supercharger.

Ah but if you loose 1% of power per psi that means at 100psi back pressure you would have no power at all ? Yes indeed.

When the exhaust valve opens there may be roughly about 100psi left in the combustion chamber trying to get out. If there is no exhaust flow, the engine will stop. Hence zero output power.

The myth that superchargers draw power from the crank, and turbos are free power for nothing is just that, a myth.

[Commando]

Let's see that crank try and turn a 100psi blower

And nobody's arguing that turbos = "free power". My argument earlier in this thread was that centrifugal superchargers build up boost/power linearly (max boost max revs), while turbos work off engine load.

[EFripin50&HSV]

G'day!

[vulpine]

commando,
whats your car running now.
last thing i read about your car it was pullin a huge 130kw on ricer wheels lol.

[Commando]

?

That was n/a with a stally. No idea what it runs now. What's your 3.9 run?

[stav50]

whats goin on sidies? whats instore for workd-6?

[Dansedgli]

Whats the deal with this vulpine character?

Why isnt he banned yet?

[pHaT`eL]

Hes amusing, keep him on

[obriza]

whats goin on sidies? whats instore for workd-6?

keep an eye on the bui;d thread... should be more coming soon. next mod: NEW TYRES lol

[stav50]

hahahaha, bin having some fun then i take it... i will do that then!

[BROCKYB8]

Yeah also maybe have a look at forsale section too stav u prob see something of his up for sale too.
Would be a good thing to go on your car if you dont buy my throttle bodies hehe

[vulpine]

at the moment its only turning out about 120kW at the rear without nitro or supercharger running (read on g-tech power analyser).
I guess with the nitro its fairly close to 170kW.... (innovate afr meter says i suck at tuning.)
I need a 2500 high stall before I get too carried away to get the most out of the supercharger and low end.
Have not tested it with everything connected yet. Waiting to get the eec-5 running with j3 adaptor before I go there.
chucked the old cam in the bin and went with a different grind, which will suit the supercharger better.
The idea with this car isnt the peak kW, its the total power under the curve.
Am seeing too many high top end power cars at the drags die at the start and spend 3/4 of the track playing catch up.
quick question, did cresent motorsport ever get the 4.8ltr i6 stroker working.
4.8ltr i6+ sc + N02 + 3.45diff + 2500stall + crow + eec-5j3 = blown head, blown trans and oil everywhere
stock 3.9ltr = blown head, blown trans and oil everywhere
basically ive got nothing to lose
I am aiming for a mid 11 second quarter mile with rpm limit left around 5500.....knowing me i wont stop till its an 8 second 8000rpm metho burnin funny car with a jet pack for booster. hmmm there is an idea, a separate pulse turbine to power a turbo... boost anywhere you want it and sexy blue flames out the rear

[Commando]

120rwkw is almost as huge as 137rwkw

I like the sound of your hopes and dreams.

[vulpine]

lol,
will race ya for "pink slips" when its finished
can always convert your car into a shopping cart.
Actually I only want ya mag wheels, the rest you can keep.

[Commando]

None of what you type makes sense dude. Except the last line. No, you can't have them.

[EFFalcon]

Cresent motorsports 4.8 litre is still in development, they're not really giving much info.