Is Ls6 possibly better than Fast 90/90
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From: Michigan (Macomb or Lansing)
Is Ls6 possibly better than Fast 90/90 Ive heard from more than one person people seeing losses in power with the fast setups over ls6 intakes. I was wondering if this is possibly true?
I will admit though, most of the very high cam only numbers have the fast 90/90.
I will admit though, most of the very high cam only numbers have the fast 90/90.
Screw it. Run the stocker. It is all hype really. 
I will also have to agree with Ryan. I got my FAST after Heads and Cam and it made a world of difference. I was probably standing to gain quite a bit with the LS6 anyway though, but with my cam choices I figured that I will need to take it up a notch.
I will also have to agree with Ryan. I got my FAST after Heads and Cam and it made a world of difference. I was probably standing to gain quite a bit with the LS6 anyway though, but with my cam choices I figured that I will need to take it up a notch.
While I believe a FAST 90-90 would add some power to my set up, I feel, for now, money is better spent on parts that will help put the power to the road: clutch, 12 bolt, tires, etc. YMMV
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Joined: Sep 2006
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From: Huntsville, AL
I have an 02 Z06 with ms3 cam , kooks longtubes and it made 435rwhp 395 rwtq.
With a vengenace ported fast 90mm and ls2 tb I pick up 33 rwhp and 21 rwtq for a total of 465 rwhp and 416 rwtq on STOCK heads still.
With a vengenace ported fast 90mm and ls2 tb I pick up 33 rwhp and 21 rwtq for a total of 465 rwhp and 416 rwtq on STOCK heads still.
Originally Posted by RrCoX22
simple as this....
ls6 - for only bolt ons
90/90 - for h/c
ls6 - for only bolt ons
90/90 - for h/c
Not to mention that there are H/C cars with ported 90/90's that have gained 25+ rwhp.
Originally Posted by Louie83
Then tell me how the fastest bolt-on LS1 on the country gained 2 mph after switching to a non-ported 90/90 from a LS6 and ported TB.
Not to mention that there are H/C cars with ported 90/90's that have gained 25+ rwhp.
Not to mention that there are H/C cars with ported 90/90's that have gained 25+ rwhp.
but for a non h/c application the LS6 obviously is the smarter choice as a 90/90 may be "over doing it" (not saying you won't pick up any numbers)
the h/c application can utilize the 90/90 combo more effeciently as a LS6 would be considered a slight restriction... the ported 90/90 will net even more gains
Originally Posted by Louie83
Then tell me how the fastest bolt-on LS1 on the country gained 2 mph after switching to a non-ported 90/90 from a LS6 and ported TB.
Not to mention that there are H/C cars with ported 90/90's that have gained 25+ rwhp.
Not to mention that there are H/C cars with ported 90/90's that have gained 25+ rwhp.
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Joined: Jun 2005
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From: England
Originally Posted by RrCoX22
if you believe that approximently $1000 is worth 2mph in the 1/4 that's fine...
but for a non h/c application the LS6 obviously is the smarter choice as a 90/90 may be "over doing it" (not saying you won't pick up any numbers)
but for a non h/c application the LS6 obviously is the smarter choice as a 90/90 may be "over doing it" (not saying you won't pick up any numbers)
Nobody with an IQ above 20.
If you/anyone plans on a cam, just skip over getting the LS6 or FAST 78 and go straight for the 90. It won't cost any HP over a LS6 on a stock intenral LS1 but will be ready to make a serious gain after a cam.
Originally Posted by 300bhp/ton
But who buys the FAST 90/90 and intends to stick with the stock cam??
Nobody with an IQ above 20.
If you/anyone plans on a cam, just skip over getting the LS6 or FAST 78 and go straight for the 90. It won't cost any HP over a LS6 on a stock intenral LS1 but will be ready to make a serious gain after a cam.
Nobody with an IQ above 20.
If you/anyone plans on a cam, just skip over getting the LS6 or FAST 78 and go straight for the 90. It won't cost any HP over a LS6 on a stock intenral LS1 but will be ready to make a serious gain after a cam.
Originally Posted by RrCoX22
simple as this....
ls6 - for only bolt ons
90/90 - for h/c
ls6 - for only bolt ons
90/90 - for h/c
.... as i'm saying the exact same thing you are
Originally Posted by RrCoX22
if you believe that approximently $1000 is worth 2mph in the 1/4 that's fine...
but for a non h/c application the LS6 obviously is the smarter choice as a 90/90 may be "over doing it" (not saying you won't pick up any numbers)
the h/c application can utilize the 90/90 combo more effeciently as a LS6 would be considered a slight restriction... the ported 90/90 will net even more gains
but for a non h/c application the LS6 obviously is the smarter choice as a 90/90 may be "over doing it" (not saying you won't pick up any numbers)
the h/c application can utilize the 90/90 combo more effeciently as a LS6 would be considered a slight restriction... the ported 90/90 will net even more gains
i too have seen several people who are less than satisfied and are going back to LS6 intakes. IMO, LS6 is fine... untill you need a single plane carbed intake or a sheet metal. go big or go home