Anyone build a rock crawler engine?

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07-23-2011, 05:04 PM
deckofficer

Anyone build a rock crawler engine?

I have a 1790 lb Track-T with the 2nd to last engine being built was the typical circle track (low buck) output of 386 hp @ 5900, 392 lb/ft @ 4400. I decided on a different route for the engine that I'm running now, 383 stroker with only 320 hp @ 4050 (not a typo, 4050) but 516 lb/ft @ 2800. The last time I was on the dyno, the technician asked if I had a rock crawler engine. What ARE the typical outputs of hp and torque at their peak rpms for competitive rock crawler engines?

http://i1236.photobucket.com/albums/...261320x990.jpg
07-23-2011, 06:03 PM
pat mccarthy

i help with machine work or built .truck puller engine. hill and hole . sand drag . air boat. boat.street rod . drag race . class racing engine road race. no rock crawler to date.
07-23-2011, 06:20 PM
deckofficer

Quote:

Originally Posted by pat mccarthy

i help with machine work or built .truck puller engine. hill and hole . sand drag . air boat. boat.street rod . drag race . class racing engine road race. no rock crawler to date.

You'll do. My question to you is what kind of hp and torque at their given rpm peaks do you see in the engines you build for serious grunt at low rpms?