Anyone got any proven gain on ph2 VTS with Raceland manifold? No guesses or estimates please!
Proven gains from Raceland manifold on VTS
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#1
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#2not realli ment to give power gain .....maybe extra 2-3 horses but it makes the car rev so much easier......i got one n ever since car revvs smoothly
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#3One of the guys I know back to back tested a Raceland against a BTB, and made better spread of power through rev range with no loss at top end.
Of course, everyone decried that because GMCs stuff is obviously better. Primarily because its more expensive? -
#4GeorgeLs engine made 190bhp with a raceland manifold, so they can handle good power.
Depends on your current engine spec as to how much of a gain or loss it will make. -
#5cheers lads.
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#6To answer your original question, i have not yet come across anybody with dyno graphs before & after a 4-2-1 manifold. Therefore we will be doing just that with our demo car shortly

Ross
RCD Performance. -
#7I tend to see most people using it as proof of how great the Racland is. But you have to admit that was a very fishy test for so many reasons though. Other things were changed and they were calculated fly power from memory. But that biggest worry was the massive hole in the power curve of the BTB exhaust. Its odd how for most people that does not happen. Hence the speculation of wheel spin or mapping problems.
