Lost Or No Power Gain After FAST LSXRT And NW 102TB! (Pics And Vids Inside!)
#1
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Lost Or No Power Gain After FAST LSXRT And NW 102TB! (Pics And Vids Inside!)
Hey guys,
So I finally got the FAST LSXRT and NW 102 TB and a completely new tune working without any problems whatsoever. However, I feel like I didn't gain any power, if not lost some. The car used to pull really really strong before this, sometimes even so strong the trans used to slip. But now, it just feels heavy like something is holding it. I can't wrap my head around this. I have a feeling its all in the tune. I even told my new tuner the older tune I had from somewhere else felt stronger and more responsive even before these mods. He gave me an appointment for a retune in 3 days time. I think he said something about setting the air/fuel ratio at around 12.8 (Not sure). Honestly I don't know if it's a timing issue, and hope there is someone here who can shed some light on this subject. Last but not least, I'm sure the weather also plays a big part in performance, as the last time I did a test run with the 'strong pulls' was in winter after my cam install and tune and now I installed the FAST LSXRT and 102 TB and tune around 2 weeks ago in the summer. You will see in the first video that it's 23 degrees celsius during the day where as the other videos it was around 37 - 38 degrees celsius at NIGHT! Gets up to 47 - 48 sometimes higher in the daytime. Anyways sorry for the long read and looking forward to hearing your replies.
Comp Cam Specs (Thoughts?) -
http://imgur.com/5vTAk42
http://imgur.com/KVtD06N,ETLfZoy
http://imgur.com/KVtD06N,ETLfZoy#1
Winter (Day) -
Fast, Free Video Hosting & Video Sharing - VideoBam
Summer (Night) - Dont know why it converted it sideways but wtv -
Fast, Free Video Hosting & Video Sharing - VideoBam
From a Roll -
Fast, Free Video Hosting & Video Sharing - VideoBam
Cheers!
So I finally got the FAST LSXRT and NW 102 TB and a completely new tune working without any problems whatsoever. However, I feel like I didn't gain any power, if not lost some. The car used to pull really really strong before this, sometimes even so strong the trans used to slip. But now, it just feels heavy like something is holding it. I can't wrap my head around this. I have a feeling its all in the tune. I even told my new tuner the older tune I had from somewhere else felt stronger and more responsive even before these mods. He gave me an appointment for a retune in 3 days time. I think he said something about setting the air/fuel ratio at around 12.8 (Not sure). Honestly I don't know if it's a timing issue, and hope there is someone here who can shed some light on this subject. Last but not least, I'm sure the weather also plays a big part in performance, as the last time I did a test run with the 'strong pulls' was in winter after my cam install and tune and now I installed the FAST LSXRT and 102 TB and tune around 2 weeks ago in the summer. You will see in the first video that it's 23 degrees celsius during the day where as the other videos it was around 37 - 38 degrees celsius at NIGHT! Gets up to 47 - 48 sometimes higher in the daytime. Anyways sorry for the long read and looking forward to hearing your replies.
Comp Cam Specs (Thoughts?) -
http://imgur.com/5vTAk42
http://imgur.com/KVtD06N,ETLfZoy
http://imgur.com/KVtD06N,ETLfZoy#1
Winter (Day) -
Fast, Free Video Hosting & Video Sharing - VideoBam
Summer (Night) - Dont know why it converted it sideways but wtv -
Fast, Free Video Hosting & Video Sharing - VideoBam
From a Roll -
Fast, Free Video Hosting & Video Sharing - VideoBam
Cheers!
Last edited by 20SS06; 08-29-2013 at 06:08 AM.
#2
Well seeing that you only have a 5.3 it will likely lose low-mid rpm range power and torque due to the drop in intake velocity. The 102 intake and tb are more suited for bigger cubic inch engines or forced induction engines.
#5
Lol. Change tuners or go back to original tuner. Timeing and afr with power enrichment.
If all is equally all top should be huge difference. Either that or trucks in limp mode
Did not look at videos yet
If all is equally all top should be huge difference. Either that or trucks in limp mode
Did not look at videos yet
#7
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Thanks a lot for your input fellaz! I do feel like I lost some torque on the low end, but did seem to gain on the higher end. Also, I'm thinking of changing the cam to a more aggressive one with a dod delete kit.
What do you guys think of this? Texas Speed 228R 228/228 .588/.588 Camshaft
Here's a video of it performing on a 2011 Silverado. WARNING: Video is tooooo good.
Cammed 2011 Silverado 10-120MPH - YouTube
Please let me know and thanks.
What do you guys think of this? Texas Speed 228R 228/228 .588/.588 Camshaft
Here's a video of it performing on a 2011 Silverado. WARNING: Video is tooooo good.
Cammed 2011 Silverado 10-120MPH - YouTube
Please let me know and thanks.