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more cheap power 

 

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 Post subject: more cheap power
Posted: Sun Feb 06, 2005 3:49 pm 
Parts Gopher
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i have an el ghia v8, i wanna know if u put a larger throttle body and larger maf sensor, do u have to adjust the computer? also, will it make a huge difference in performance?
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Posted: Sun Feb 06, 2005 4:00 pm 
Getting Side Ways
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you won't have to adjest the computer unless you have a chip, but you will only gain power if you don't go to big, i tried to go to big it lost alot of power in mine, if i were you go for a 65mm throttle body, and a 70mm maf, and i'll get a little more power out of a BMC air filter, tickford snorkel and a explorer inlet manifold, all of them working together do wonders for your intake system, then if you don't have exhuast and stuff i think extractors and exhuast would be a good idea

 

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Posted: Sun Feb 06, 2005 5:00 pm 
Getting Side Ways
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Going too large with the throttle body will only lose you throttle response. The engine can only use as much air as it has need for. For a 5.0 - a 65mm would be plenty with a car only revving to the 6250 rev limiter. A 70mm would be useful if you have upgraded heads and intake but on a stock motor is just about overkill. You need to do mods which increase your volumetric efficiency to make more power.
Shane

 

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Posted: Sun Feb 06, 2005 9:46 pm 
Getting Side Ways
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and by that he means like cam, roller rockers and stuff, but im not sure what you have done to your engine.

 

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Posted: Mon Feb 07, 2005 12:44 am 
Getting Side Ways
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Yep I have over 300 rwkw with 65mm throttle body...

 

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Posted: Mon Feb 07, 2005 1:03 am 
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EBXR8380 wrote:
Yep I have over 300 rwkw with 65mm throttle body...
bit different with turbos' though ;)

 

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Posted: Mon Feb 07, 2005 8:06 am 
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The MAF & TB will help the car rev a little better making a little extra top end power, but I wouldnt expect huge gains as as the stock manifold is pretty rotten with regards to reving. With the MAF, make sure its calibrated to the size injectors that your car has and then you wont need to chip it or anything like that.

 

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Posted: Mon Feb 07, 2005 9:14 am 
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If you're putting on a 65mm TB then either port the upper inlet or swap it to an Explorer manifold to get the more out of that TB size increase.

 

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