I have a 67 WDX 100% stock with a rebuilt(done 30 years ago) 251 and 420 with less then 1k drive time on them. This thing fires right up and runs great up to about 40mph.
I have owned over 100 vehicles and out of that 100+ only 4 have been dodges(Magnum, D150, shadow, and this PW). Part of that is the fact that dodges cost more to buy & run then the others, another part of that is parts scarcity of the older dodge engines. I can build 2 GM trucks what 1 Dodge will cost. I just always wanted a flat fender PW so when this one came along I pounced.
I always like to run propane any time I can also. The higher octane, improved engine life, and lower cost gives me something to flaunt to the diesel guys that can get 30% more mileage at twice the cost. Propane takes years before it goes bad, requires 3 wires to run, and because it scares people is actually safer to run due to the DOT guidelines in place.
I don't do diesels. I do do low rpm dauntless style torque monster gas engines running on propane though. In most cases I can make more power/weight with a gas and proper gearing then I can with a diesel at a lower operating cost. NA diesels are dogs compared to NA Gas engines etc. Alright, enough telling you why I do not want to use a diesel back to the supercharging topic.
After quite a bit of time looking I am finding very little in regards to this engine and forced induction except that due to the low compression ratio it would be a ideal candidate.
I have always shy'd away from superchargers or turbochargers due to the cost. But, from a sheer coolness factor and all that room above the engine to work with this thing is begging for a blower.
Where would I even start as far as considering a supercharger on this 251?
How much safe power/torque can I expect?
How much can I bore this thing before I run into issues and where would I look for modified engine internals once it was bored?
I am willing to toss $4k into this engine to make a supercharged 251 a reality. Remember me talking about the GM thing? Yea, 4k into a GM engine will equal a lot more power. This is more about keeping the flat head then anything.
For 4k though I would want more then 350 ft pounds of torque around 2500 rpm. That is not a lot of torque considering this is a "big block" inline engine.
I have a 350 engine right now with $1500 invested that puts out 370 ft lbs just over 2k and will be going into his if the 251 is not a suitable option. I will find something along the rat rod lines to put the NA 251 in if the 350 takes its place in the WDX.
Part of me does not want to ask this because I will just look stupid for asking it. While the frosted side really wants to see a blown 251 under that hood.
With this engine around so long it seems like someone would have tried it?
Where is all the performance write ups on this 251? Seems like people toss a intake and exhaust on it and call it good or junk it for a v8.
Someone give me the heads up. There has to be some good info out there on how to go about placing a blower, routing, numbers, and the parts to make this work.
I have owned over 100 vehicles and out of that 100+ only 4 have been dodges(Magnum, D150, shadow, and this PW). Part of that is the fact that dodges cost more to buy & run then the others, another part of that is parts scarcity of the older dodge engines. I can build 2 GM trucks what 1 Dodge will cost. I just always wanted a flat fender PW so when this one came along I pounced.
I always like to run propane any time I can also. The higher octane, improved engine life, and lower cost gives me something to flaunt to the diesel guys that can get 30% more mileage at twice the cost. Propane takes years before it goes bad, requires 3 wires to run, and because it scares people is actually safer to run due to the DOT guidelines in place.
I don't do diesels. I do do low rpm dauntless style torque monster gas engines running on propane though. In most cases I can make more power/weight with a gas and proper gearing then I can with a diesel at a lower operating cost. NA diesels are dogs compared to NA Gas engines etc. Alright, enough telling you why I do not want to use a diesel back to the supercharging topic.
After quite a bit of time looking I am finding very little in regards to this engine and forced induction except that due to the low compression ratio it would be a ideal candidate.
I have always shy'd away from superchargers or turbochargers due to the cost. But, from a sheer coolness factor and all that room above the engine to work with this thing is begging for a blower.
Where would I even start as far as considering a supercharger on this 251?
How much safe power/torque can I expect?
How much can I bore this thing before I run into issues and where would I look for modified engine internals once it was bored?
I am willing to toss $4k into this engine to make a supercharged 251 a reality. Remember me talking about the GM thing? Yea, 4k into a GM engine will equal a lot more power. This is more about keeping the flat head then anything.
For 4k though I would want more then 350 ft pounds of torque around 2500 rpm. That is not a lot of torque considering this is a "big block" inline engine.
I have a 350 engine right now with $1500 invested that puts out 370 ft lbs just over 2k and will be going into his if the 251 is not a suitable option. I will find something along the rat rod lines to put the NA 251 in if the 350 takes its place in the WDX.
Part of me does not want to ask this because I will just look stupid for asking it. While the frosted side really wants to see a blown 251 under that hood.
With this engine around so long it seems like someone would have tried it?
Where is all the performance write ups on this 251? Seems like people toss a intake and exhaust on it and call it good or junk it for a v8.
Someone give me the heads up. There has to be some good info out there on how to go about placing a blower, routing, numbers, and the parts to make this work.
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