T O P I C R E V I E W
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50DADDY
Member # 3076
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posted
Lets say you have a car with a good working tune on the computer,then you add a larger throttle body,port the intake manifold and do a port match and some intake runner work on the heads.What would you suggest doing with the tune?More fuel?More/less timing?And where would you make the changes?In the low end,mid range,top?
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JohnB
Member # 969
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posted
I'd put it back together and check it. It may not need a re-tune.
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Nastysvt
Member # 6431
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posted
i would think you're going to need another tune..you have more air flow now doing the throttle body and porting. it all depends on you air/fuel though.
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50DADDY
Member # 3076
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posted
Unfortunately i dont have a wideband or funds to dynotune.I do know my tune was spot on before.So im flying blind here,just looking for a general suggestion to follow.
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JohnB
Member # 969
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posted
Spend a few bucks and have it run a few pulls on a dyno to see what's up with it. Otherwise, you're playing with fire.
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hidnn.o.s.
Member # 1219
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posted
quote: Originally posted by JohnB: Spend a few bucks and have it run a few pulls on a dyno to see what's up with it. Otherwise, you're playing with fire.
100%
The money you claim to save can save you the entire car
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copcar
Member # 10113
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posted
more timing slightly less fuel low rpm. same timing slightly more fuel midrange and upper rpm range.
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