Ok guys,I figured I would start a new thread with the dyno results going from the factory truck intake manifold to the Fast LSXRT 102mm manifold.
An LS3/LS7 90mm throttle body was used along with the X link.It works very well,no problems
The only changes were the manifold and throttle body
All pulls were done in 3rd gear TCC locked
If you wonder about the hp falling off at 6600RPM about 15hp,we ran into 2 degrees of KR and that was the result.LOL I will be back in a few weeks with more results.
The heads are still the factory 243's milled .035,ports are untouched.
Hopefully this will help some of those wondering

Here are the mods
6.0 LQ4
Kooks longtube headers
Heads mentioned above
Comp 228 232
Fast Lsxrt 102 LS3 90mm TB
Performabuilt Level 2,PI 36-3800 triple disk and 4.10's


Factory truck manifold
SAE
392.77 Rwhp
391.61 Rwtq

STD
402hp
401tq


Fast LSXRT 102mm
SAE
423.03 Rwhp
410.01 Rwtq

STD
435.86 hp
422.44 tq

I really wish this graph was not missing a big Chunk
Here are the graphs before and after
New dyno graph will up shortly.

 

nice numbers charlie, not gonna lie im kinda Jealous now lol when are u gonna do pulls with with some go go Juice?

 

Sweet. It looks like it really shines above 4500. Next time on the dyno better have a nitrous pull

 

what cubic inch motor is this on?

 

Damn nice numbers man, Congrats.

 

Sorry LQ4 6.0,edited adding engine modifications
Thanks guys

 

Wow, I didn't think it'd add that much power. Impressive to me.

 

I was happy with the results as well

 

Nice numbers man!!!!!!!!!!!!!!!!!!!1

 

Nice numbers! Wish I had a 6.0! I love these intakes! I got alot out of my 5.3