Do these gains seem right?
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Joined: Feb 2013
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Do these gains seem right?
I have a 2005 LS2 with a vararam intake, NW 102mm TB, Fast 102 (nonported), fuel rails, 7/8 kooks headers, a catted x-pipe, and a 3" NPP Z06 exhaust.
After a tune it came out to 388 RWHP...
does this sound a bit low to anyone else? i was hoping for at least 400
After a tune it came out to 388 RWHP...
does this sound a bit low to anyone else? i was hoping for at least 400
Race Director
Joined: Oct 2005
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From: Bay Area Ca.
I think bigger gains would be seen with the LS3 comparatively speaking.
A small cam upgrade would put you over the 400 mark very easily and with no driveability/emission issues. In the 30 rwhp realm.
A small cam upgrade would put you over the 400 mark very easily and with no driveability/emission issues. In the 30 rwhp realm.
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Race Director
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Pro
Joined: Sep 2008
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From: Blowing Rock, NC
That seems like a very nice gain from your original numbers. My C608 A6 LS3 w/ NPP and Callaway CAI after a recent tune went from wrhp 373 to 395. I hope to get 40wrhp more with adding Kooks 1 7/8 Headers, catted x pipe 3" and new tune. 
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From: Missouri City Texas
I wouldn't count on getting 40rwhp from headers. 25rwhp is more likely.
Melting Slicks
Joined: Oct 2000
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From: dfw Texas
if it made 380 before, something isnt right.. if it made 330 before.. sounds about fair. I havent seen people pick up much power realy with a fast and stock cam. IMO not worth the money.
Drifting
Joined: Jan 2012
Posts: 1,548
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From: Paris TN
My mods are similar and I have no clue what it's making. I have a dyno tune session tomorrow in Memphis at Dynospeed, a well know LS engine authority in SW Tennessee. With my mods, I am really hoping for something over 400 to the wheels, but the real gage will come at the drag strip. My previous best without the FAST and tune was a 12.26@115. I am really hoping to dip into the 11s with my current mods.
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From: Missouri City Texas
what did it make before the mods.. the Final number means nothing really with out a before number.
if it made 380 before, something isnt right.. if it made 330 before.. sounds about fair. I havent seen people pick up much power realy with a fast and stock cam. IMO not worth the money.
if it made 380 before, something isnt right.. if it made 330 before.. sounds about fair. I havent seen people pick up much power realy with a fast and stock cam. IMO not worth the money.
My mods are similar and I have no clue what it's making. I have a dyno tune session tomorrow in Memphis at Dynospeed, a well know LS engine authority in SW Tennessee. With my mods, I am really hoping for something over 400 to the wheels, but the real gage will come at the drag strip. My previous best without the FAST and tune was a 12.26@115. I am really hoping to dip into the 11s with my current mods.
Tolero Apto Victum
Joined: Jul 2007
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From: Woodlands TX
OP: Congrats on your new power increase, the FAST is a nice mod for the LS2 - http://forums.corvetteforum.com/c6-t...st-intake.html
Pro
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Drifting
Joined: Jan 2012
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From: Paris TN
I had an email tune on it before this session so the increase isn't as huge as if this were the first tune. I started out with 369.51 HP and 388.52 TQ and ended up with 386.7 Power and 399.7 TQ. So, that's a pretty sizeable increase. If it made 330 bone stock, that's about 56 HP improvement.
The dyno numbers don't say a thing about the seat of the pants feel which is awesome. If you're in the area, you couldn't do better than DynoSpeed in Memphis, TN.
I will post the graph when I get home and scan it in.
Last edited by ParisTNDude; Apr 25, 2013 at 03:54 PM.
Tolero Apto Victum
Joined: Jul 2007
Posts: 9,669
Likes: 37
From: Woodlands TX
You were right, but it's not that far off of 400...lol, (power of positive thinking) Mine matched the OPs exactly.
I had an email tune on it before this session so the increase isn't as huge as if this were the first tune. I started out with 369.51 HP and 388.52 TQ and ended up with 386.7 Power and 399.7 TQ. So, that's a pretty sizeable increase. If it made 330 bone stock, that's about 56 HP improvement.
The dyno numbers don't say a thing about the seat of the pants feel which is awesome. If you're in the area, you couldn't do better than DynoSpeed in Memphis, TN.
I will post the graph when I get home and scan it in.
I had an email tune on it before this session so the increase isn't as huge as if this were the first tune. I started out with 369.51 HP and 388.52 TQ and ended up with 386.7 Power and 399.7 TQ. So, that's a pretty sizeable increase. If it made 330 bone stock, that's about 56 HP improvement.
The dyno numbers don't say a thing about the seat of the pants feel which is awesome. If you're in the area, you couldn't do better than DynoSpeed in Memphis, TN.
I will post the graph when I get home and scan it in.
Drifting
Joined: Apr 2010
Posts: 1,262
Likes: 122
From: Vetteville Tennessee
You were right, but it's not that far off of 400...lol, (power of positive thinking) Mine matched the OPs exactly.
I had an email tune on it before this session so the increase isn't as huge as if this were the first tune. I started out with 369.51 HP and 388.52 TQ and ended up with 386.7 Power and 399.7 TQ. So, that's a pretty sizeable increase. If it made 330 bone stock, that's about 56 HP improvement.
The dyno numbers don't say a thing about the seat of the pants feel which is awesome. If you're in the area, you couldn't do better than DynoSpeed in Memphis, TN.
I will post the graph when I get home and scan it in.
I had an email tune on it before this session so the increase isn't as huge as if this were the first tune. I started out with 369.51 HP and 388.52 TQ and ended up with 386.7 Power and 399.7 TQ. So, that's a pretty sizeable increase. If it made 330 bone stock, that's about 56 HP improvement.
The dyno numbers don't say a thing about the seat of the pants feel which is awesome. If you're in the area, you couldn't do better than DynoSpeed in Memphis, TN.
I will post the graph when I get home and scan it in.
Drifting
Joined: Jan 2012
Posts: 1,548
Likes: 15
From: Paris TN
Edited: added ET slips and dyno graph:
Last edited by ParisTNDude; Apr 26, 2013 at 09:05 PM.