how much total timing are you running on your na motors?
06-17-2006, 12:47 PM
#12
~~~~
Charter Member
Re: how much total timing are you running on your na motors?
what ci? 540 NA
what hp? Dyno Queen 713 HP. Reality 675 HP.
what grade fuel? Always have used 92.
what comp ratio? 9.2:1
what total timing are you running? 33 Locked.
what hp? Dyno Queen 713 HP. Reality 675 HP.
what grade fuel? Always have used 92.
what comp ratio? 9.2:1
what total timing are you running? 33 Locked.
06-17-2006, 01:34 PM
#13
Registered
Re: how much total timing are you running on your na motors?
what ci? 572
what hp? 1078
what grade fuel? 91 pump
what comp ratio? Procharged 12 psi
what total timing are you running? 32-34
what hp? 1078
what grade fuel? 91 pump
what comp ratio? Procharged 12 psi
what total timing are you running? 32-34
06-17-2006, 03:08 PM
#14
Platinum Member
Platinum Member
Re: how much total timing are you running on your na motors?
505 CI
Dart or Merlin iron heads (have use both)
9.4 to 1 CR
93-94 pump gas
6800 RPM
780 HP
40 degrees total timing
I have raced with this combination for years. I have never had any detonation issues on the dyno or in the boat.
Dart or Merlin iron heads (have use both)
9.4 to 1 CR
93-94 pump gas
6800 RPM
780 HP
40 degrees total timing
I have raced with this combination for years. I have never had any detonation issues on the dyno or in the boat.
06-17-2006, 03:51 PM
#15
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Join Date: Feb 2005
Location: Aurora Indiana
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Re: how much total timing are you running on your na motors?
540 ci
9.3 to 1 comp, canfield aluminum heads, raw water cooled
660 '# torque, 625 hp on dyno spinning all accessories except p/s.
dyno# with 89 octane, I run 93 unless I can't find it on the water.
timing set at 10 base, 35 all in.
5500 rpm max.
9.3 to 1 comp, canfield aluminum heads, raw water cooled
660 '# torque, 625 hp on dyno spinning all accessories except p/s.
dyno# with 89 octane, I run 93 unless I can't find it on the water.
timing set at 10 base, 35 all in.
5500 rpm max.
06-17-2006, 04:21 PM
#16
Registered
Re: how much total timing are you running on your na motors?
468
475 hp.
93 oc
10.5 comp.
34 deg. locked
475 hp.
93 oc
10.5 comp.
34 deg. locked
06-17-2006, 09:01 PM
#17
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Location: franklin,Tenn.
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Re: how much total timing are you running on your na motors?
540ci. 9.5 comp. 93octane dartheads 668tq 719hp 6300rpm 38degrees is the best egt for mine. single dominator. msd ignition.
06-18-2006, 08:11 AM
#18
Registered
Re: how much total timing are you running on your na motors?
Not all Tbolt packs time at the same RPM, some do not come to top time until real high RPM. Also there can be variances of a degree or two in the pack, I have the curve chart I think some would be surprised how much they vary. You can not make a blanket statement on the RPM the packs should bet set at. The best top time is set on a Dyno at at the packs design RPM, though I have set many on the water at speed. I think there is even more to this timing thing then we think, the curves are for given RPM's if our engines are propped below the design RPM of the what effect does that have. I think it is extremely important to properly identify the pack you are using and make sure you are in fact timing it at it top RPM. If anyone wants the curve chart mailed to them post you email.
Phil
P.S. I hope someone smart jumps in to help with this!
Phil
P.S. I hope someone smart jumps in to help with this!
06-19-2006, 01:40 PM
#20
Registered
Re: how much total timing are you running on your na motors?
Originally Posted by MOP
Not all Tbolt packs time at the same RPM, some do not come to top time until real high RPM. Also there can be variances of a degree or two in the pack, I have the curve chart I think some would be surprised how much they vary. You can not make a blanket statement on the RPM the packs should bet set at. The best top time is set on a Dyno at at the packs design RPM, though I have set many on the water at speed. I think there is even more to this timing thing then we think, the curves are for given RPM's if our engines are propped below the design RPM of the what effect does that have. I think it is extremely important to properly identify the pack you are using and make sure you are in fact timing it at it top RPM. If anyone wants the curve chart mailed to them post you email.
Phil
P.S. I hope someone smart jumps in to help with this!
Phil
P.S. I hope someone smart jumps in to help with this!
Doesnt seem right to me ?...We are changing it.
