Need some ft/lbs examples 292

[cerial]

Right, now I have a 76 292 stock internals with a 390, Offenhauser, stove bolt headers, 2.5 true duals that run open till behind the cab where they feed into dual 2"in/out porters then a 90 to dual open flowing turbo mufflers to keep it quiet.

I am trying to get a idea what kind of torque I am producing. I am picking up a 72 292 with around 60k today with the intention of doing that same bolt on's (with hei) to it that are on my 76.

I am hoping that the current upgrades on the 76 put me around 330+ ft/lbs.
If someone can chime in that has some kind of proven numbers that would really be helpful.

[greg64]

Cerial, I have no proven numbers to give you. Stock torque is something between 220 and 250. I have similar upgrades on my 292, and there's no doubt it boosted the torque. How much? I dunno. The stovebolt exhaust really helped. To really bring it to life, I think you'd need more compression, a new cam, and the lump port head mod.

There's guys in Brazil drag racing these engines, and getting 1000 HP out of them with a turbo.

[cerial]

I will be building a 12 speed 12 cylinder here over the winter using 2 292's. Looking to be around 700 ft/lbs NA. The idea is a cheap to run cheap to replace engine. It has a .54 12th gear so I will be able to go deep in the axle gearing.
Good stock 292's can be found for $500 or less up here easy. The drive train is being built with a max of 1200 ft/lbs engine torque in mind if I do decide to build some expensive 6's later.p
I need to pick up that book and try to make 350lbs on junk fuel.

[greg64]

Sounds like fun. Definitely get Leo santucci's book. Are you going to run them inline, fore and aft (like an inline 12 would be) or side by side?

[cerial]

Running the two engines inline with the balances pointed towards the rear axle. Both engines should be around 80" long placed between driver and passenger closer to driver by a few inches. Wheelbase will be around 110" with very good weight distribution front to rear.

I have a fixed drive shaft coming off the two engines to a reverser box located in front of the front axle that gives a .75/1 ratio.
Then another fixed drive shaft going to a sm465(divorced) with the clutch sitting just in front of the 2nd engine towards the passenger side.
Then another fixed drive shaft running next to the engines on the passenger side going to a 3 speed Watson between engine 1 and 2.
Then a drive shaft that will move with the suspension going to a 14 bolt.

I am running the starter on the passenger side flywheel (the one used with the transmission) which will multiply it's torque by 1.5 to turn the two engines easily. Using a electric fuel pump, remote oil filters, electric inline water pump, with the accessories ran off the reverser box to give faster speeds. This will eliminate any belts on the engines.
By running the transmission divorced after the .75/1 reverser box with 25% less input torque I can run a cheaper clutch. It also makes changing the clutch a 1/2 hour deal.

I have room to run a supercharger directly off the front of the reverser box turning 1.5x engine speed with placement right behind the grill later on.


I am a bit bummed out 292 turned out to be a 250. It won't be as efficient as a second 292. But, I got it anyway to help during mock up at the very least. Worst case it will make a good back up.

Before anyone mentions diesel. Short answer is that it is considerably more expensive from start to finish to run one.

The idea is that I can run both gas engines then cut one off to provide better fuel consumption with 87 junk gas(maybe ethanol later) and get the same/better torque then a high compression big block that demands a select blend of 91/104 just fire on a cold day. Been there done that.

If I fry a bearing (etc) in the front engine I can still limp it back kind of deal. If the rearmost engine goes a 1/2 a hour with a wrench can disconnect the two engines from each other.

With the 12 speed I can run 5.38 gearing (less drive train wear) and still cruise down the highway running around 2200rpm. It won't be fast shifting. But, it will be a lot of fun.




I do not need that much engine torque realistically. A single 300ft/lbs engine with 5.38 gearing will be enough to move this 3,800lb (working for 3,600) thing down the road easily. But, being able to have the ablity to increase that torque without the need for exotic replacement parts appeals to me.

[73kay]

Idk what your running but I would love a picture of your setup. Maybe because it's 4am lol