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Fast 78 Mm Intake Question

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Old Feb 3, 2008 | 11:16 AM
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Default Fast 78 Mm Intake Question
hOW MUCH OF A DIFFERENCE IS IT FROM LS6 TO 78MM FAST INTAKE ? I HAVE 04 GTO A/T I WAS TOLD THAT I HAVE LS6 INTAKE, IS THIS TRUE ? IS IT WORH THE MONEY ($500) FOR A USED FAST INTAKE ?
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Old Feb 3, 2008 | 11:22 AM
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It depends is 5-10hp worth 500 dollars to you.
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Old Feb 3, 2008 | 11:42 AM
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NO 5-10 H/P IS NOT WORTH $500. i GUESS I WILL WAIT TILL MARCH WHEN WEILAND PUTS OUT THEIR NEW LS1/LS6 INTAKE.
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Old Feb 3, 2008 | 04:12 PM
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I have one. Only got it because it was free and is ported. Don't think I gained anything over the ls6, but I did not do a back to back dyno on it.
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Old Feb 4, 2008 | 10:59 AM
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I gained 10 HP but lost 7 TQ when I switched to my FAST 78 with the mods in my sig.
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Old Feb 4, 2008 | 11:03 AM
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Originally Posted by radkon
I gained 10 HP but lost 7 TQ when I switched to my FAST 78 with the mods in my sig.
was it ported and what t/b are you using?
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Old Feb 4, 2008 | 01:53 PM
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Originally Posted by JPH
was it ported and what t/b are you using?
It was not ported at the time and I was using the stock TB on an 04 GTO that was ported. I also suspect my tune was a bit off. I have since ported the FAST and worked on the tune but haven't had it on the dyno.
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Old Feb 5, 2008 | 06:42 PM
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Originally Posted by radkon
It was not ported at the time and I was using the stock TB on an 04 GTO that was ported. I also suspect my tune was a bit off. I have since ported the FAST and worked on the tune but haven't had it on the dyno.
man, if you could borrow a Wilson or Fast 78mm t/b, you WILL see a difference. I worked on a 346 n/a car for along time with a ported 78mm Fast on it and a stock ported t/b trying to find just a little more power in it, and 1 day I ordered in a Wilson 78mm t/b just to try or see if it made a difference, and WOW, it made such a huge difference, the car had to be retuned. My tuner to this day, can't believe it made that big of difference. This is what I have found, and I thought I might share it with you. Good Luck radkon.

Joe
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Old Feb 6, 2008 | 02:20 PM
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Originally Posted by JPH
man, if you could borrow a Wilson or Fast 78mm t/b, you WILL see a difference. I worked on a 346 n/a car for along time with a ported 78mm Fast on it and a stock ported t/b trying to find just a little more power in it, and 1 day I ordered in a Wilson 78mm t/b just to try or see if it made a difference, and WOW, it made such a huge difference, the car had to be retuned. My tuner to this day, can't believe it made that big of difference. This is what I have found, and I thought I might share it with you. Good Luck radkon.

Joe
What kind of numbers did you see?
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Old Feb 6, 2008 | 03:08 PM
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Old Feb 9, 2008 | 02:49 PM
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Originally Posted by radkon
What kind of numbers did you see?
sotp was huge, and almost 1mph according to owner of car.
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