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Originally Posted by JC
Yes, for the JMM race series. But Pacies have better all over torque than stock manifold, so the cheaper paccies are a good compromise for an otherwise stock car. The JMMs work better with other mods like cam etc, but are just overkill on stock motor - at least IMO. I also know the JMMs are particularly suited for the VCT motor with both power and torque increases. The pacies I had on the VCT XR6 dropped peak power (by 1 rwkw), but still increased torque by around 10%
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I cannot see how it the pacemaker PH4499 could drop 1rwkw on the VCT mtr.
Last time I dyno'd my car at the AU dyno day it pulled 123rwkw with a dirty A/F & a stock Ford rear muffler. Plus other than the Pacemakers and 21/2 pipes and redback middle muffler the car was stock.
I'am gong the dyno the car next sat with the FF day at Hallam again.
This time with 3' intake clean A/f new plugs & hot dog rear muffler to see if there is any improvement