LS3 -PD XS Intake **New**
Thread Starter
Teching In
Joined: Jul 2018
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Richard Holder tested all there versions on a BTR engine dyno with a 427 with Ls3 heads, however no video showing a 6.2L comparison. Big money for me with a crappy canadian dollar to buy something that might only gain 8hp. We need see an engine dyno and direct comparison. There sold out right now so hopefully will see dyno pulls on YouTube soon.
TECH Fanatic
Joined: Jul 2007
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From: Wilmington, De
From the few results I have found, it looks like the viable gains require cubic inches and a 103mm - 112mm throttle body.
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TECH Enthusiast
Joined: Feb 2018
Posts: 642
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From: Michigan
I saw on Facebook somewhere someone made around 520 whp with this intake and ported LS3 heads on an SBE LS3. Wish I could find it for ya, but finding anything on that god forsaken platform is impossible.
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The FAST LS3 setup doesn't really gain much vs the stock LS3 intake, but there are big gains going from a stock LS3 intake to this.
https://fb.watch/o4QTIF8f0p/
https://fb.watch/o4QTIF8f0p/
Thread Starter
Teching In
Joined: Jul 2018
Posts: 44
Likes: 13
The FAST LS3 setup doesn't really gain much vs the stock LS3 intake, but there are big gains going from a stock LS3 intake to this.
https://fb.watch/o4QTIF8f0p/
https://fb.watch/o4QTIF8f0p/
TECH Enthusiast
Joined: Feb 2018
Posts: 642
Likes: 300
From: Michigan
I did the FAST 102 with a 102 TB and it followed the stock LS3 intake dyno line. I also smoothed the bell mouth on the runners and as well as port matched it to my PRC heads. No extra power. I did paint it so it looks sick! There is guy silver surfer on YouTube who just got his PD103, so I want him to do a back to back run with PD intake and his stock LS3 intake. To see a real comparison.
Details of the build are in the link.
Yup, the best part is the powerband didn't suffer anywhere compared to the stock LS3 intake and it started making gains above 4000 rpms and easily pulled all the way to 7000 rpms. Transient fueling was a little wonky at first, presumably because of the large gain in interior volume but it was easily worked around. Only downside to this intake is it's not as easy to deal with installing it and certain cars are harder to deal with obviously.
Thread Starter
Teching In
Joined: Jul 2018
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Likes: 13
Those are great gains! I'm selling my fast 102 now and will buy this. The top end is so much better than any other intake out there!
TECH Fanatic
Joined: Jul 2007
Posts: 1,802
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From: Wilmington, De
Thread Starter
Teching In
Joined: Jul 2018
Posts: 44
Likes: 13
I just purchased a 103, I will do some soomthing of the bell mouth only and smooth some of other spots for a better transition but I'm looking forward to some great gains. I have a 235 cam, TSP heads and the bells and whistles, hoping for some nice gains!!!!
Last edited by 1786 Vlogs SS; Dec 9, 2023 at 09:20 PM.