PICS LSXr with NW 102 TB on a LS6
10-06-2010, 07:40 PM
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PICS LSXr with NW 102 TB on a LS6 So for the guys that have been following my plight, my Katech build was almost impossible to tune for driveability. Turns out that the 90mm "takeoff" TB we used might have been the culprit ( something mechanical). So the debate raged on about whether there was a benefit to using a 102 on a stock cube bolt on mod LS6 or pick up another 90mm.. It was even suggested you could lose low end torque with the big blade 102. So I was faced with buying a new TB. I went with the Nick Williams 102. I was concerned that it would have poor low speed manners but I knew that it wouldn't be to big. Justin Meyers from Modern Muscle in Oswego Il. talked me into it so off we went. I did fuel rails and injectors (I was at 106% duty cycle). The bottom line is this. If you are going to upgrade to a bigger intake the FAST 102LSXr with the 102 TB performs slightly better than the 90mm set up with an LSXr. So if you need to buy a TB anyway don't be afraid that the 102 is to big on a stock cube motor. Driveability is great. I actually gained slightly across the entire RPM range even picking up about 6 more ft/lbs of torque at around 3800rpm. Now if you already have a 90mm to put on an LSXr then you would have think about whether the gains from a 102 are worth it. I'll scan my dyno sheet at work tommorrow and show the difference between a LSXr with 90mm vs 102mm on a full bolt on motor with a very mild cam.
Check out these pics. The NW is a real nice piece.
http://s879.photobucket.com/albums/a...illiams%20102/
Check out these pics. The NW is a real nice piece.
http://s879.photobucket.com/albums/a...illiams%20102/
Last edited by Big Bu Bu; 10-06-2010 at 07:56 PM.
10-06-2010, 07:52 PM
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Try this. Scroll down the page when you get there.
http://s879.photobucket.com/albums/a...illiams%20102/
http://s879.photobucket.com/albums/a...illiams%20102/
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10-07-2010, 09:35 PM
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Hers is the FAST LSXr intake on a stock cube motor LS6. Nicks 102 vs GM LS2 90.
A little gain all the way across. If you need to buy a TB for your new FAST LSXr then no problem with the 102. If you already have a 90, you may want to use it. Most guys with a LS1 / LS6 need to buy a new TB anyway going to FAST.
A little gain all the way across. If you need to buy a TB for your new FAST LSXr then no problem with the 102. If you already have a 90, you may want to use it. Most guys with a LS1 / LS6 need to buy a new TB anyway going to FAST.
