Changfa DRAG RACING

[DKMC]

Posted in General for better exposure

I'm trying to figure out if they are Diesels or converted to Gasoline.......Alcohol.....Nitro??
https://youtu.be/N4p-mOf3PFU

Wild stuff

[Henry W]

It looks like lots of fun.   I think they should install explosion resistant flywheel scatter shields. Thanks for posting!

[veggie]

Posted in General for better exposure

I'm trying to figure out if they are Diesels or converted to Gasoline.......Alcohol.....Nitro??
https://youtu.be/N4p-mOf3PFU

Wild stuff

Lots of black smoke, I'm pretty sure they are running on diesel fuel

[DKMC]

It looks like lots of fun.   I think they should install explosion resistant flywheel scatter shields. Thanks for posting!

Lots of black smoke, I'm pretty sure they are running on diesel fuel

Yea, scatter shields, they are pretty far above design RPM range!
Then again, I saw a CS in a vid the other day and it was way above 650 or 850 as well.

Well per USA tractor pulling, I would have thought they'd roll much more coal

[Tom Reed]

I wonder what size engines they are using and what mods were done???

[Henry W]

I they look much smaller than the S195.

Modifications, I would imagine some of the following was done:
•  Boosted fuel pressure or Larger injection pump and injector.
• Advanced injection pump timing.
• Reworked cam profile and timing.
• Head porting.
• Larger valves and stronger springs.
•  Possibly tuned intake and exhaust to minimize intake reversion and increase exhaust scavaging.
• No governor.
• Some type of blended fuel.

[Henry W]

If anyone is interested,
Here is some good reading about Fuel Mixtures for Drag Racing Engines

https://www.enginebuildermag.com/2018/01/fuel-mixtures-drag-racing-engines/