[Z06] TPIS 90mm LS6 intake manifold
08-28-2007, 11:10 PM
#1
Melting Slicks
Thread Starter
TPIS 90mm LS6 intake manifold
I thought this was cool.
You can send your LS6 intake manifold to TPIS and have it modified to accept a 90mm throttle body for $350 or to LPE for $369 . This was tested against a ported LS2 manifold and a FAST 90 at LPE and was only down 4hp from the FAST 90 on a 575 horse motor.
Here's a link to LPE's website with the dyno comparisons
http://www.lingenfelter.com/90mmintaketests.htm
This is a bargain. Anyone out there running one of these, what do you think?
You can send your LS6 intake manifold to TPIS and have it modified to accept a 90mm throttle body for $350 or to LPE for $369 . This was tested against a ported LS2 manifold and a FAST 90 at LPE and was only down 4hp from the FAST 90 on a 575 horse motor.
Here's a link to LPE's website with the dyno comparisons
http://www.lingenfelter.com/90mmintaketests.htm
This is a bargain. Anyone out there running one of these, what do you think?
08-29-2007, 02:23 PM
#3
Melting Slicks
Thread Starter
09-01-2007, 10:03 PM
#5
Le Mans Master
How about a ported FAST? You can get another 8-15 rwhp from a port on a FAST over the stock FAST (gains depend on set-up and the actual port). This sounds like a good option thogh for someone that does not want to invest the money in the FAST intake.
09-02-2007, 12:37 AM
#6
Melting Slicks
Thread Starter
There is a little to be gained from porting the LS6 manifold too, but ultimately the FAST will produce slightly higher numbers. But to get close for $350 on something I already have seemed attractive, especially since I've already paid to have mine ported and matched to my heads.
09-02-2007, 04:54 PM
#7
Safety Car
09-02-2007, 05:01 PM
#8
Melting Slicks
Thread Starter
Edit: Here is a link to LPE website with the TPIS intake product description. On the page you will notice a Link to "Intake Manifold Dyno Test Results" which will direct you to the dyno comparison I gave in the first posting of this thread.
http://www.lingenfelter.com/Merchant...Category_Code=
Last edited by ctusser; 09-02-2007 at 05:12 PM. Reason: add a link to product description
09-15-2007, 11:38 PM
#9
I had the setup on my 388 all bore motor and now have it on my 454 LSX, we'll see how it goes. On the 388 with an MTI Z1 cam (mild) and good 317 heads it did 473rwhp through a nine inch on a mustang dyno. So I don't think it was hurting that is for sure. Its a nice peice and TPIS is top notch!
09-17-2007, 06:40 PM
#10
Le Mans Master
Member Since: Feb 1999
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There is a little to be gained from porting the LS6 manifold too, but ultimately the FAST will produce slightly higher numbers. But to get close for $350 on something I already have seemed attractive, especially since I've already paid to have mine ported and matched to my heads.
Plus you don't have a modified part which might be harder to sell than either a stock LS6 or a stock LSX! Heck, you could even sell your FRC's since they won't fit
(though they can be modded pretty easily).
09-17-2007, 08:22 PM
#11
Melting Slicks
Thread Starter
Keep in mind though that the LS6 you have, has a street value of $300-325. So if you add the modification cost the value of reselling your OEM part, you're at ~$650-700. If you keep your eye out, you can usually score a used, clean LSX for <=$750.
Plus you don't have a modified part which might be harder to sell than either a stock LS6 or a stock LSX! Heck, you could even sell your FRC's since they won't fit (though they can be modded pretty easily).
Plus you don't have a modified part which might be harder to sell than either a stock LS6 or a stock LSX! Heck, you could even sell your FRC's since they won't fit
(though they can be modded pretty easily).Well, my LS6 manifold was already professionally ported and matched specifically to my aftermarket heads, so that may hurt resaleability (is that a word?) Plus a top tuner (to remain unamed) is having problems with the FAST manifolds leaking and causing fuel trim issues. So that tuner is using the modified 90mm LS6 where they used to use the FAST. The leaking issue is exacerbated with boosted applications. Since I've put the money into porting my LS6 and may consider F/I in the future it might be prudent for me to do the 90mm upgrade on mine since the difference in hp is minimal and it will prevent leaking.
09-18-2007, 11:39 PM
#12
Le Mans Master
Member Since: Feb 1999
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Well, my LS6 manifold was already professionally ported and matched specifically to my aftermarket heads, so that may hurt resaleability (is that a word?) Plus a top tuner (to remain unamed) is having problems with the FAST manifolds leaking and causing fuel trim issues. So that tuner is using the modified 90mm LS6 where they used to use the FAST. The leaking issue is exacerbated with boosted applications. Since I've put the money into porting my LS6 and may consider F/I in the future it might be prudent for me to do the 90mm upgrade on mine since the difference in hp is minimal and it will prevent leaking.
Well cool, definitely post up pics, numbers, etc., if you go this route!
~DT
03-07-2008, 05:45 PM
#13
Drifting
What throttle body is needed for these TPIS intakes, LS2? And if so is that a direct bolt-on throttle body for our cars or does it need modifications or harness or what?
03-07-2008, 08:02 PM
#15
Melting Slicks
Thread Starter
The FAST made a difference, below is a link to my post about that.
http://forums.corvetteforum.com/show....php?t=1956038
