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The LS2 runs strong

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Old May 9, 2012 | 11:05 AM
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Default The LS2 runs strong

Last December I sold my 2010 LS3 SS due to breaking a lot of drive train parts with just bolt-on power. The SS at the time had impressed me with what I was able to run but I wanted more and didn't want to fight the up hill battle against weight. I wanted a C6 and loved the LS3 but I couldn't find one in my price range since I wanted to drop my car payment. I bought my 2007 base C6 A6 from the original owner (my sister) with only 7K miles. I knew the history of the car, hell I even drove it home from the dealer so it was a no brainer. I had some bad preconceived notions about the LS2 and heard mostly bad things till I got on Corvette forum and even there it was a mixed bag.

Well to make a long story short the car came with a Corsa sport exhaust. I then got a basic Speed Inc. tune since I couldn't stand the way the auto shifted. I could make a separate thread on how happy I am with the tune. I then bought 17" wheels with 275/40/12 MT ET street radials and headed to the track.

First time out was opening weekend. Weather and track conditions were pretty bad but I was able to run a 12.7 @ 111 which is right where I figured the car would run. A couple weeks later I was dragged to a 5th gen track day and I'm glad I went. To my surprise the car ran a best of 12.48 @ 113.5 with a 1.89 60'. It was consistently in the 12.5's all day. There were no changes made to the car at all. I was curious at this point to see how much HP the car put down so it went on Speed Inc.'s dyno yesterday and made 352 rwhp. Needless to say I am extremely happy and impressed with what the little LS2 is doing. Can't wait to start getting into some real mods. Paying $150/ month less doesn't hurt either.



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Old May 9, 2012 | 11:26 AM
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Nice!
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Old May 9, 2012 | 11:34 AM
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the LS2 a6 is a beast with the right mods look at LS1LT1 times in the fast list
Showroom Stock LS2 (2005 -2007)
12.215 @ 115.45 - LS1LT1 - 06 A6 - (1278)


External Engine Modifications LS2 (Bolt-Ons)
10.788 @ 127.29 - LS1LT1 - 06 A6 - CAI, conv, fast, hdr, ptb, skinnies, tune, & more, DR - (5611)
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Old May 9, 2012 | 11:56 AM
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Originally Posted by EVL JAKE
I then bought 17" wheels with 275/40/12 MT ET street radials
You should really try the 17s instead, most of us find that those 12" diameter drag radials just don't hook as well.
Just kiddin' around with ya of course.


But yes, the LS2 is still a GREAT engine and makes for a solid platform with which to modify even further if one needs/wants to. As Dennis mentions above, some of us have gone very quick/fast with them.
Your car looks good too, enjoy the new ride.
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Old May 10, 2012 | 08:53 AM
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Thanks guys. So I have a question and I think you guys are the ones to ask. I originally ordered a Yank S/S 3200 stall and when it got to the shop it was actually an S/S 3600. Thoughts? How will it do on the street with a drag radial?

Last edited by EVL JAKE; May 10, 2012 at 09:18 AM.
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Old May 10, 2012 | 09:09 AM
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Thank your lucky stars that it was a 3600.

The 3200 was the biggest mistake I ever made on the car. The 3600 will hit MUCH harder and be worth .3 quicker in the 1/4 mile.

If I had stayed N/A I was going to pull the 3200 out to swap it to the 3600. The 3200 is simply too tight for any type of N/A racing. It's a great 100% street converter though. The 3600 will be a much better dual-purpose street/strip converter. It'll definitely need a cooler though, where the 3200 did not require an external cooler.
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Old May 10, 2012 | 09:27 AM
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364 vs 376 isnt a whole lot of difference..LOL
Both are fine engines, glad your happy with your results. Strong running car!
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Old May 10, 2012 | 11:16 AM
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Originally Posted by 99blancoss
364 vs 376 isnt a whole lot of difference..LOL
Both are fine engines, glad your happy with your results. Strong running car!

true....biggest difference is in the heads and intake
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Old May 10, 2012 | 01:58 PM
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Originally Posted by Devilish34
true....biggest difference is in the heads and intake
There is a plan in the works to swap those soon......

Originally Posted by FloydSummerOf68
Thank your lucky stars that it was a 3600.

The 3200 was the biggest mistake I ever made on the car. The 3600 will hit MUCH harder and be worth .3 quicker in the 1/4 mile.

If I had stayed N/A I was going to pull the 3200 out to swap it to the 3600. The 3200 is simply too tight for any type of N/A racing. It's a great 100% street converter though. The 3600 will be a much better dual-purpose street/strip converter. It'll definitely need a cooler though, where the 3200 did not require an external cooler.
I have read you post that more than a few times. I guess my biggest hang up is driveablity because it is currently my only car for a 60 miles daily commute. I'm sure I will love it at the track. I'm going to monitor the trans temp and add a cooler if needed.
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Old May 11, 2012 | 11:05 AM
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So I just got the car back and it runs strong. The 3600 stall is definitely noticeable. I will wait to see what the track results are before I decide to keep it or not.

I was a little disappointed by the dyno numbers. With a halltech CAI, LPE GT-11 cam, TSP headers and catless X-pipe and an SLP U/D pulley it put down 393 RWHP on a dyno jet. Does that seem a bit low? I know the stock intake is holding me back. How much would I pick up with an LS3 top end?

Last edited by EVL JAKE; May 11, 2012 at 12:29 PM.
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Old May 11, 2012 | 12:15 PM
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Stock intake is killing some power for sure, but big stalls and autos eat horsepower en masse. Take it to the track and quantify the true gains there.

Dynos are for WOT tuning and A/F ratios.
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Old May 11, 2012 | 12:17 PM
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Originally Posted by EVL JAKE
I was a little disappointed by the dyno numbers. With a halltech CAI, LPE GT-11 cam, TSP headers and catless X-pipe and an SLP U/D pulley it put down 393 RWHP on a dyno jet. Does that seem a bit low? I know the stock intake is holding my back. How much would I pick up with an LS3 top end?
Yes that does seem a little bit low (I made that exact same number in my LS2 automatic with a stock cam (bolt ons only)) and yes your stock LS2 intake manifold is DEFINITELY holding you back.
It is still enough for 10s though in the right conditions.
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