GT/CS_2011

twin turbos AND sc plus staged juice....what could be more fun than that????

gmoran1469

Methanol

Lem-06

Maybe not 2 s/c's
But how about twelve super chargers?!?!?
http://www.hotrod.com/techarticles/e...linder_engine/

GT/CS_2011

i like the way u think

retfr8flyr

You will always have the turbo vs supercharger questions but what I always laugh at is that top fuel and funny car are always brought up by the supercharger guys. Top fuel and funnycar run super chargers because that's what is mandated by the rules. NHRA banned turbos a long time ago, mainly because turbos don't put on the show that a supercharged engine does. What spectator wants to watch a top fuel car go down the track almost quietly, no huge flames from the exhaust stacks.


Earl

LordRipberger

What would be the advantage to Methanol?

forensicsteve

Methanol

We went to methanol to get the IATs down and it worked, but adding methanol to the mix, means just one more thing that can go wrong. We had to change to a JPC racing intake manifold because the stocker couldn't handle the mixture at 20+ lbs boost.

Mixing and adding all these power adders is fun on an internet forum, but makes the build exponentially and unneccesarily more complicated.

4LiterSonic

I wish Ford had done what BMW's doing with their turbos and put one on the GT500. Of course, BMW did patent it. Which sucks. Hopefully they'll let others use this tech because it's a huge advance.

Basically, to counteract the turbo lag problem, BMW came up with a little electric motor that spools up the turbo to the correct speed so when you hit the gas, the power is there. Boom. All the power of a turbo, none of the lag.

Further reading

Another (little more advanced) read

JIM5.0

The only advantages of alcohol fuels; methanol & ethanol for example, are power. They offer absolutely nothing in fuel mileage since they are much more volatile and you have to dump so much more of them into the cylinder to get the same combustive force form each ignition.

Where alcohol fuels really shine is you can dump SO much more of it into the cylinders to get even more explosive force than from a higher BTU density fuel (gasoline and diesel are higher BTU density fuels).

So, top fuel drag rails can reach well above 5000 BHP crank (even 10,000 BHP I have been rumored), but the draw back is they could literally drink over a dozen gallons of fuel in a mile? (I think this is right, maybe much less, but you will NOT even get 10 miles per gal).

JIM5.0

It is possible to counteract turbo lag without the use of such external devices added to the turbos.
Though more expensive and more complicated, compound turbos of different sizes in series or parallel do the trick.
For example, the F250+ 7.4L power strokes use a parallel turbo setup. One small turbo for off the line low power RPM, a larger turbo for higher RPM operations.

The same can be done with gasoline engines.