Redyno after installing FAST 90/90 over ls6.
Thread Starter
11 Second Club
Joined: Feb 2002
Posts: 955
Likes: 4
From: Silver Spring, Md.
Redyno after installing FAST 90/90 over ls6. I'm not able to post a dyno sheet but I can tell you I was a little dissappointed at first when I saw a total gain of only 11 rwhp over my ls6. This is after all tuning was done. But...when I thought about it, the 415 rwhp was made with 3.42s. The 426 rwhp was made with 4.10s. It's been dyno verified on a few occasions that 4.10s normally show a difference of 10 rw less than 3.42s. Assuming this to be the case, the FAST has given me roughly 20 more rwhp over the ls6 intake.
I know it's not a total apples to apples comparison but I hope it's close enough.
I know it's not a total apples to apples comparison but I hope it's close enough.
Thread Starter
11 Second Club
Joined: Feb 2002
Posts: 955
Likes: 4
From: Silver Spring, Md.
Though I've been to the track with the new intake, I don't have a full pass under my belt yet. I've been having tranny issues that has been keeping me from getting it into 4th when racing.
The car is definitely making more power, judging from the fact that it no longer hooks going into 2nd gear. On most of my passes before the intake, it would bark 2nd gear. Now, it spins for several feet before it hooks up. It definitely feels more violent going through the gears but I won't have any proof without a complete pass. My 11.82 @ 121.8 pass was with the ls6 intake in the summer. I'm hoping to run 123 mph at full weight on street tires with the FAST.
It did pick up power under the curve with the FAST. I've heard folks say that the intake loses torque but mine increased. It could be due to the increase in gear though.
The car was tuned by F-body central.
The car is definitely making more power, judging from the fact that it no longer hooks going into 2nd gear. On most of my passes before the intake, it would bark 2nd gear. Now, it spins for several feet before it hooks up. It definitely feels more violent going through the gears but I won't have any proof without a complete pass. My 11.82 @ 121.8 pass was with the ls6 intake in the summer. I'm hoping to run 123 mph at full weight on street tires with the FAST.
It did pick up power under the curve with the FAST. I've heard folks say that the intake loses torque but mine increased. It could be due to the increase in gear though.
The car was tuned by F-body central.
Last edited by big dave; Sep 12, 2010 at 12:38 PM.
great info man.. im in the same boat as you. Im wondering if its really worth swapping out my LS6 intake for a fast intake?
But since im going for all the hp, i know ill be buying one..
But since im going for all the hp, i know ill be buying one..
