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Never expected to pick up this much after the 102 fast combo install. Car made 495rwhp 419 rwtq.
Mods:
Ls2 6.0 short block stock
Texas Speed Stage 2.5 5.3's
Texas Speed Tsnaumi Cam
All Texas Speed Valvetrain that came on the Heads from Texas Speed
Peak Speed Shop Ported Fast 102 Intake
Nick Williams 102 Throttle Body
Stock Rockers with Trunion Upgrade
Texas Speed 1 7/8 Long Tubes
Texas Speed Off Road Y pipe
Magnaflow CB
Tnt Fabrication Hybrid 8.8 Rear with 3.73 gear
Hughes 4L80 E
Fti 3800 Converter
FtP Lid
Speed Density Tune
My gain from a 92mm combo to a 102mm combo isn't typical and I feel a lot is because we added the exhaust mods after the car was tuned last year with the 92mm combo. Some time after the car was initially tuned last year we swapped from 1 3/4 pacesetters to the 1 7/8 Texas Speed's, chopped the piece behind the merge off where the y necked down to join the Cb and made this one big joining coupler, and the weather was better from last year to this year. Heres the two graphs together from last year to this year. With the 92 combo the car ran 11.02@122 so we're hoping to see quite a pick up with this new combo showing more power.
Proof the LS2 is still relevant! I am on the fence about a nice C6 that happens to be cheap and my favorite color. One year later and a few thousand more could have an LS3 instead but with numbers like this what's .2 liters?
Ever think about going to true duals? That would probably get you over the 500 mark. As mentioned, a simple underdrive pulley would probably get you there, as well. Or do both, I would do both, both of them together seems like it would make this a solid and strong 500rwhp motor. Do both.
Great new #'s! The old dyno chart it was just making over 150lb ft at 3k, new chart about 350lb ft at 3k. Also how the tq peaked at about 5k & just dropped off. Now the graph looks great, nice flat tq.
Here is the weather difference between the pulls last year and this year.
91.8 degrees 55% humidity 29.38 pressure last year
80.7 degrees 59% humidity 29.28 pressure this year
Average Numbers from before to now
256 rwhp 271 trq
335 rwhp 378 trq
Thanks guys! I honestly never expected this and the only reason the car was on the dyno again was from installing the 102 combo and having different injectors so it needed a touch up on the tune. I'm wanting to see it hit 10's Na more than 500rwhp. I like the way the car sounds and that's why I haven't went to duals. As far as I know this is Sae numbers but if I find out different I'll be sure to post.
It does "feel" faster than before and is fun for sure. I've only driven it twice since getting it back because my rear window seal came loose and I didn't want the rear to get soaked so I left it in the shop all weekend and then Monday it went to the glass shop to get the rear window resealed. Hoping to see some faster times this weekend out of it!!
Sorry for bumping this back up, but that's really impressive numbers for your setup. I remember commenting a while back that our builds were somewhat similar lol. I'll be curious what it runs. Definitely keep us posted
03-22-2016, 01:48 PM
Close to 500rwhp, Na, stock ls2 short block 
