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Do i need another tune??

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Old May 19, 2005 | 10:10 PM
  #1  
sunsetorangess's Avatar
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From: Houma, LA
Question Do i need another tune??

I just got my car dyno tuned with the mods in my sig. I was wondering if i put a ported throttle body and a underdrive pulley on will i have to get it tuned again?? Also, is an underdrive pulley worth the losing accessory power, how much will it effect things and do i just put the pulley on any way or are there timing marks i have to go by?? Thanks

Last edited by sunsetorangess; May 20, 2005 at 12:22 AM.
Old May 20, 2005 | 06:29 AM
  #2  
teke184's Avatar
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From: US 1 Mile Marker 52 in the Florida Keys
Re: Do i need another tune??

no need for a tune after the TB and pulley.

since you have an m6 you will probably not see any problems with the accessories, the idle is higher than autos.

all you do is put the pulley on. i think it is keyed a specific way, only one way to put it on. timing is not determined by the pulley
Old May 20, 2005 | 10:45 AM
  #3  
sunsetorangess's Avatar
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Re: Do i need another tune??

thanks, how much of a gain am i willing to see from the pulley and tb?
Old May 20, 2005 | 12:28 PM
  #4  
SSpdDmon's Avatar
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Re: Do i need another tune??

Originally Posted by sunsetorangess
thanks, how much of a gain am i willing to see from the pulley and tb?
10-12hp is my guess...mostly from the pulley.
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