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MG MGF Technical - Twin flex down pipe: RR result
REsults from hi-flow: the setup includes spaghetti exhaust manifold and twin flexi downpipe. All for 1200 OZ $ and 160 OZ $ transport. I
|David, do you also have torque figures, as getting 4-2-1 would boost up the torque more than the bhp I thought.|
I also thought of getting the exhaust manifold redone, but ran out of fund + they said will take 3 weeks to make it and I will be carless for 2 days.
|Thatīs all they gave me Hanah. A pitty they donīt have any BHP or torque figures of the 4-2-1 fitted to an unmodified cylinderhead. I am tempted though. |
|That 20 horsepower is a huge gain though!|
But quad throttle bodies = expensive + wolf 3D etc etc, probably cost close to 3000 pounds I am assuming...??
|Interesting figures David - but as you say, who honestly knows what contribution - if any - the manifold is providing to that highly modified engine.|
|Torque is 'power' multiplied by 5252 and the result divided by the rpm.|
In this respect the true effect of performance gains will be seen in the torque gains and where they occur. Here the first spec has a torque peak at 3000rpm, the second spec 3% higher at 3500rpm and the third well modified spec produced 8% more peak but the same figure is seen at 3500, 4500 and 5000rpm. A very flat delivery and by 5000rpm is 16% and 10.5% up on the other specs. This shows the engine will pull stronger from lower rpm and continues long after the other specs see a sharp drop in torque.
This thread was discussed between 23/02/2003 and 24/02/2003
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