speed increment

...suggest me the technology which can bear heavy thrust and can easily pass the road having a lot of barriers.

A rocket booster will do the trick:

http://www.greatscourge.co.uk/bc_cycles.htm

http://www.youtube.com/watch?v=CGvMVn38Eu8

A few brave men at a secret desert site on Nevaduine make a thing go fast

http://www.youtube.com/watch?v=C2GZ4Uxoa9s&feature=related

But the Emperor is alert

"suggest me the technology which can bear heavy thrust and can easily pass the road having a lot of barriers."

As long as my daughter is in Uniform, I think I'll keep my ideas to myself!

I'm just not sure what your idea of payload for the car or event is.

milo

Improve the aerodynamics. Remove weight. Fit a more powerful, lighter, smaller engine. If the barriers involve high speed cornering then ground effects are a very potent addition. If the course is on tarmac you need to consider tyre compounds. If the course doesn't involve high speed cornering then look to narrow your tire profile and the tire drag as much as possible. Use a hard compound and slim profile on the tyre if the course is just a straight line. If the course has corners then you should look to using slicks with a wide profile and a suitable compound that's approriate for the course. If you study everything that F1 looks at and utilises you won't go far wrong, but all additional speed costs additional money at an infinitely escalating ratio.

Have you checked out http://auto.xprize.org

What type of throttle are you using? cable or wired? wired uses a pot on the accel pedal and a servo on the throttle body, you can possibly get a RC servo to do the same job on the cable driven throttle.

how much thrust or pulling force do you require?

a Suzuki mightyboy, those little cars that the tray on the back couldn't fit a hay bale, that had a 660cc engine, or a BIG DAF 12L Diesel turbo truck? I think those are wired throttles.

The (in)famous motoring journalists on BBC Televison's "Top Gear" programme once tried to get a Reliant Robin into orbit as part of the UK's next step in its space programme. Jeremy Clarkson, James May and Richard Hammond are just waiting for the call......

http://www.topgear.com/

Where's the science people?!?!?!

If F=m*a then to get a to increase then you can either:

1. Increase the force applied (rockets seems to the be favorite)
2. Decrease the mass... Get rid of that SUV and make and armored SMART car with the same engine power! A smaller car could drive AROUND and BETWEEN the barriers on the road...and squeeze into a smaller parking spot in front of the movie store.