Super Powers
Member
I went to a tractor pull on the 4th with my 570 Super.Came home with 2 more 2nd's.That makes 11 2nd's out of 16 hooks since I started pulling the ole girl again last year.The other five hooks I got 2 1st and 3 3rd's.Most times I'm getting beat by less the 2 ft.Sometimes by a few inches.She just runs out of power a little short of 1st place in the gear I need to go in.If I go in a lower gear it spins just short of 1st.I have nice cut radial tires and it always hooks real good.
The engine,injectors and pump are 200 hours old.Pump has been turned up to a max of 80 hp on dyno.I've advanced timing and turned rpm's up to about 2300 with no noticable gains on dyno so I put everything back near stock specs where the governor works best.
The tractor smokes plenty black under full load but this is where she has the best power.I have a little more to go on the pump adjustment but loose power if I go anymore.
Filters are new and I even installed an electric pump to ensure enough fuel.It runs and starts real good,just seems like I should be getting another 10 horse or so according to what I've read on here.
Can anyone think of anything I'm missing? Since I seem to be getting enough fuel I'd think the pump is doing it's job and I need more air.I even removed the pre heat coil from the intake and installed a K&N type filter to cut down on restrictions.Am I dreaming that anymore HP is obtainable from the 339" Herc without some boost?
If so,I'm at my wits end and thinking about a small turbo with light boost to use all the fuel I can give it with my stock pump without blowing my head gasket.Also stock rpm's in hopes of getting more torque at around 15-1800 rpms since this is where the governor likes to keep it anyways.I've talked to the Keystone turbo guys about this but want to pursue all choices before going down that road.
Mr.Schwiebert,Thanks for your reply to my rpm/pump question.I tried to reply back but I don't think my message has found you.If you have any thoughts on all this jiberish,please don't hasitate to give them to me.
Thanks all:TJ
The engine,injectors and pump are 200 hours old.Pump has been turned up to a max of 80 hp on dyno.I've advanced timing and turned rpm's up to about 2300 with no noticable gains on dyno so I put everything back near stock specs where the governor works best.
The tractor smokes plenty black under full load but this is where she has the best power.I have a little more to go on the pump adjustment but loose power if I go anymore.
Filters are new and I even installed an electric pump to ensure enough fuel.It runs and starts real good,just seems like I should be getting another 10 horse or so according to what I've read on here.
Can anyone think of anything I'm missing? Since I seem to be getting enough fuel I'd think the pump is doing it's job and I need more air.I even removed the pre heat coil from the intake and installed a K&N type filter to cut down on restrictions.Am I dreaming that anymore HP is obtainable from the 339" Herc without some boost?
If so,I'm at my wits end and thinking about a small turbo with light boost to use all the fuel I can give it with my stock pump without blowing my head gasket.Also stock rpm's in hopes of getting more torque at around 15-1800 rpms since this is where the governor likes to keep it anyways.I've talked to the Keystone turbo guys about this but want to pursue all choices before going down that road.
Mr.Schwiebert,Thanks for your reply to my rpm/pump question.I tried to reply back but I don't think my message has found you.If you have any thoughts on all this jiberish,please don't hasitate to give them to me.
Thanks all:TJ