| DoneByDoug |
04-11-2010 07:05 PM |
351 vs 289 Dual Plane Firing Order
As the firing orders are different, will the Blue Thunder 289 Cobra Hi Rise dual plane manifold give maximum performance on a 302 block with a stroker crank that uses the 351 firing order? In theory dual plane runners are sequential so as each intake runner is 180 degrees apart in the firing order. I know it will fit, it's just getting maximum flow that concerns me.
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| Keithc8 |
04-12-2010 10:41 PM |
It should work fine with the 351W firing order which is what most of the cams are using now.
Good luck, Keith
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| PANAVIA |
04-13-2010 12:21 AM |
If you are really concerned , you could put in dual O2 sensors and check for exhaust gas readings.
idle , off idle , 1000,1500,2000, -- - -on up.
Steve
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| DoneByDoug |
04-13-2010 08:08 AM |
Thanks
Thanks to both. Steve, you're right. I should do that as it will tell if pulse reversion is starving certain banks/cylinders.
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| Jerry Clayton |
04-13-2010 08:18 AM |
so will a plug check---no welding, no buying more parts/tools that cost more than the cam/manifold
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