Got my C6 retuned at C&S Motorsports...big improvement
#1
Got my C6 retuned at C&S Motorsports...big improvement
C&S Motorsports is based in Omaha, NE. First off, Tom Van Vugt is the main tech there and he is a class act who definitely knows his stuff. Did the work at the right speed, didn't charge me for time he wasn't working on the car and did a fantastic job. Had the tranny and rear-end fluids replaced w/ Royal Purple, car shifts alot better and the common Corvette "rear-end rattle" is gone.
Dropped the car all the way on the stock bolts in the front and all the way in the back plus remove a section of the rear bushing. Looks great, probably dropped an inch all around.
Now the good stuff. Main reason for taking it there was to have the car re-tuned. I had the mod work done and the car tuned when it only had 290 miles on it and it has 17K now so it was time since the engine was broken in.
Here are the results:
Base pull - 341.5 RWHP @ 6000 / 332.1 RWTQ @ 4900
Final pull after the re-tune: 381.2 RWHP @ 6100 / 353.3 RWTQ @ 4800
Difference: + 39.7 RWHP / + 21.2 RWTQ
As the engine broke in, it was taking in more air and running lean and he was seeing alot of knock retard which was killing power. He made some nice adjustments to the timing and I can feel a difference in every gear including 6th.
Big difference in peak power, from 2900-5000, there is only about a 15-20HP difference, before and after. The best difference is in the "meaty" part of the HP curve where you want to see it. Before from 5000-6150, HP would jump from 316-340 (24HP). Now from 5000-6150, it jumps from 333-381 (48HP) and you can feel the difference.
Big difference in the torque band too. Even though the max tq. only increased by 21, I'm seeing a 32 RWTQ increase at 2900 and a 37 RWTQ increase at 6150. Basically, the torque curve is stronger, a little flatter and pulling harder and for a longer period then before. Before from 5000-6150, TQ would drop about 40 lbs., now it only drops about 20 lbs.
Figuring in the loss on the dyno, the motor is putting out 477HP and 442TQ at the flywheel. That's a 77HP and 42TQ increase from stock with nothing but headers, x-pipe, CAI, ported TB and intake and a tune. Pure bolt-ons mods.
Bottom line, I spent about 6 hours there yesterday and couldn't be happier with the results. If you need work done on your cars and you're in the Iowa/Nebraska area you should definitely talk to Tom @ C&S.
Dropped the car all the way on the stock bolts in the front and all the way in the back plus remove a section of the rear bushing. Looks great, probably dropped an inch all around.
Now the good stuff. Main reason for taking it there was to have the car re-tuned. I had the mod work done and the car tuned when it only had 290 miles on it and it has 17K now so it was time since the engine was broken in.
Here are the results:
Base pull - 341.5 RWHP @ 6000 / 332.1 RWTQ @ 4900
Final pull after the re-tune: 381.2 RWHP @ 6100 / 353.3 RWTQ @ 4800
Difference: + 39.7 RWHP / + 21.2 RWTQ
As the engine broke in, it was taking in more air and running lean and he was seeing alot of knock retard which was killing power. He made some nice adjustments to the timing and I can feel a difference in every gear including 6th.
Big difference in peak power, from 2900-5000, there is only about a 15-20HP difference, before and after. The best difference is in the "meaty" part of the HP curve where you want to see it. Before from 5000-6150, HP would jump from 316-340 (24HP). Now from 5000-6150, it jumps from 333-381 (48HP) and you can feel the difference.
Big difference in the torque band too. Even though the max tq. only increased by 21, I'm seeing a 32 RWTQ increase at 2900 and a 37 RWTQ increase at 6150. Basically, the torque curve is stronger, a little flatter and pulling harder and for a longer period then before. Before from 5000-6150, TQ would drop about 40 lbs., now it only drops about 20 lbs.
Figuring in the loss on the dyno, the motor is putting out 477HP and 442TQ at the flywheel. That's a 77HP and 42TQ increase from stock with nothing but headers, x-pipe, CAI, ported TB and intake and a tune. Pure bolt-ons mods.
Bottom line, I spent about 6 hours there yesterday and couldn't be happier with the results. If you need work done on your cars and you're in the Iowa/Nebraska area you should definitely talk to Tom @ C&S.
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#5
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Sounds like you got pretty good results. Any chance of seeing an overlayed graph with baseline and final pull ?? Its awesome to pick up big chunks of power under the curve. Who's at at peak rpms anyways for more then a a few seconds. Most driving is in the 2500-4500 range anyway. Glad to hear you picked up so much usable power in that area, and as you said everywhere else too. Now post the graph. Congrats bro.
#6
Sounds like you got pretty good results. Any chance of seeing an overlayed graph with baseline and final pull ?? Its awesome to pick up big chunks of power under the curve. Who's at at peak rpms anyways for more then a a few seconds. Most driving is in the 2500-4500 range anyway. Glad to hear you picked up so much usable power in that area, and as you said everywhere else too. Now post the graph. Congrats bro.
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#10
Thanks, I'm very happy with the numbers but I'm even happier with the way the car runs. Tom was telling me that his dyno is very tough and he's had a number of people upset because they dyno'ed at one place then they come to him and his was lower then what they saw before. At the end of the day the dyno is just a good way to see the results of work. Numbers at the track are what really matter.
#12
Thanks! Yep, I only replaced headers and x-pipe, left everything else stock. That way you can't tell if I'm stock or not until it's too late.
#13
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Wow that thing looks sick after the drop and polished wheels. I was looking for a place to get a tune after i get some work done (headers and the usual), and i think i might be going down there now.
#15
give him a call, he's a great guy to deal with. It's worth the drive.