Amazing you paid testing made more power. You left it a lot of information regarding this test. Seems more like a ad for the intake. We did the same test on what you said you would like to do. We tested a 416 LS3 with tfs 255 heads and a comp cam 239/252 .624” lift. While it made about 3 hp more, it lost upwards of 17hp from 3000-5000 rpm compared to the stock intake. Also the stock intake used a 95mm throttle body, the XS intake used a 103 mm. We also tested the XS with 92 and 102 throttle bodies with no significant change at all. Larger throttle bodies did hurt throttle response on the street. Here is a link to one of the two videos we made. Seems more hype. Does look cooler than the stock LS3 intake it was compared to. Build quality is nice as well. Performance just wasn’t there. ua-cam.com/video/V_KyJ8FDUsY/v-deo.htmlsi=E1oXxuXJFKEdDuze
I am doing a Ls3/6L90E swap in a 03'Crown Vic Police Interceptor. A project with my grandkids and my wife and myself. I was looking at 1 of these, but for a .20 over Ls3 N/A with just a BTR Stage 2 V2 6.17/.619 113 Lsa cam. I'm not sure if it would help much. I am not doing a max effort build. Great info, thanx guys!!!
Interested to see the in car results with a more aggressive tune! I currently have the GPI rod mod intake on my H/C/I LS3 and wouldn’t mind getting another 30+ to the wheels just off an intake!
Amazing you paid testing made more power. You left it a lot of information regarding this test. Seems more like a ad for the intake. We did the same test on what you said you would like to do. We tested a 416 LS3 with tfs 255 heads and a comp cam 239/252 .624” lift. While it made about 3 hp more, it lost upwards of 17hp from 3000-5000 rpm compared to the stock intake. Also the stock intake used a 95mm throttle body, the XS intake used a 103 mm. We also tested the XS with 92 and 102 throttle bodies with no significant change at all. Larger throttle bodies did hurt throttle response on the street. Here is a link to one of the two videos we made. Seems more hype. Does look cooler than the stock LS3 intake it was compared to. Build quality is nice as well. Performance just wasn’t there. ua-cam.com/video/V_KyJ8FDUsY/v-deo.htmlsi=E1oXxuXJFKEdDuze
I am doing a Ls3/6L90E swap in a 03'Crown Vic Police Interceptor. A project with my grandkids and my wife and myself. I was looking at 1 of these, but for a .20 over Ls3 N/A with just a BTR Stage 2 V2 6.17/.619 113 Lsa cam. I'm not sure if it would help much. I am not doing a max effort build. Great info, thanx guys!!!
What size throttle body did you use?
Interested to see the in car results with a more aggressive tune! I currently have the GPI rod mod intake on my H/C/I LS3 and wouldn’t mind getting another 30+ to the wheels just off an intake!
I love the look of this manifold