beginningjockey's 360 to 318 swap
#43
Pulls awesome, especially compared to the old 360, it feels awesome to not have the engine straining a bit. Had no problem making 70 in 5th, but we towed in 4th gear pretty much the whole time, never had to downshift even on the steep hills, just floor it and wait for 4 barrells to kick in
To be quite honest, I only had oil pressure gauge, still working on getting all my gauges working.
But because it is a manual tranny and I know my axle ratio, here's the RPM from the worksheet merc225hp gave me (thanks again merc): 55 MPH: 2074 70MPH: 2639
Not too bad.
Oil pump works very well, runs about 30PSI at 55MPH.
I was running 15* base timing +15* max vacuum advance, no knocking on 87 octane, but switched to 91 anyways to avoid any problems. 12.5MPG highway with unloaded trailer running in 4th gear, not bad at all on fuel economy.
The dual plane intake REALLY boosts low end torque, and it feels AWESOME! I can spin my tires in 3rd gear no problem. I took it into the pasture, put it in 3rd from standstill, let the clutch out and floored it, didn't move anywhere but the tires were sure spinning damn fast
To be quite honest, I only had oil pressure gauge, still working on getting all my gauges working.
But because it is a manual tranny and I know my axle ratio, here's the RPM from the worksheet merc225hp gave me (thanks again merc): 55 MPH: 2074 70MPH: 2639
Not too bad.
Oil pump works very well, runs about 30PSI at 55MPH.
I was running 15* base timing +15* max vacuum advance, no knocking on 87 octane, but switched to 91 anyways to avoid any problems. 12.5MPG highway with unloaded trailer running in 4th gear, not bad at all on fuel economy.
The dual plane intake REALLY boosts low end torque, and it feels AWESOME! I can spin my tires in 3rd gear no problem. I took it into the pasture, put it in 3rd from standstill, let the clutch out and floored it, didn't move anywhere but the tires were sure spinning damn fast
#44
#45
#46
I can't tell if the roar is due to the carb or the muffler, I have vacuum secondaries. But whatever it is it sounds awesome. DOT guy passed us on the interstate (we were doing 70 when he passed), he was doing faster, limit is 70, and he goes by and waves at us. He probably thought that that one hell of a noisy motor was supremely beefed up lol...
#47
I can't tell if the roar is due to the carb or the muffler, I have vacuum secondaries. But whatever it is it sounds awesome. DOT guy passed us on the interstate (we were doing 70 when he passed), he was doing faster, limit is 70, and he goes by and waves at us. He probably thought that that one hell of a noisy motor was supremely beefed up lol...
What muffler do you have?
#48
#49
I do have a mechanical oil pressure gauge so I know those numbers to be accurate.
Total timing should be 30-35* when mechanical and vacuum advance are at their peak.
#50
I have true duals 2.5" pipes with two Dynomax VTs under it. No cat and HD cast manifolds (hi-flow version Dodge made).
This motor has 100K on it. It gets 20PSI at idle, when warm, it might be more like 40 when driving. Idling cold is 40-60PSI, I am running Shell Rotella T 15w40 in it so that's why number seem interesting.
I do have a mechanical oil pressure gauge so I know those numbers to be accurate.
Total timing should be 30-35* when mechanical and vacuum advance are at their peak.
This motor has 100K on it. It gets 20PSI at idle, when warm, it might be more like 40 when driving. Idling cold is 40-60PSI, I am running Shell Rotella T 15w40 in it so that's why number seem interesting.
I do have a mechanical oil pressure gauge so I know those numbers to be accurate.
Total timing should be 30-35* when mechanical and vacuum advance are at their peak.