Anyone every go up against a cobalt SS?
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cycosarge
New Member
Well guys, i just got back to the house from the track and i smoked him! It was amazing i had him off the line by a long shot 1st and second i was still accelerating better than him but when 3rd gear kick in he finnaly started to catch up. I ran a 1.98 60 ft and a 13.41 quarter mile, my adrenaline was pumping so hard it was crazy i love it!
Congratulations. Those looks like decent times for your first time to the track. A lot of people have trouble getting a 60ft below 2.0 on street tires, especially with 4.10s. Good job.
Five Oh Brian
Member
See, we had faith in you all along! 13.41 and a sub 2.0 60' is very good. What was your trap speed? About 103 mph? What did the Cobalt end up running?
Simple....
1st & 2nd gear = V8 Torque vs. I4 Turbo Lag
3rd = Long predictable V8 N/A power curve vs. Peaky turbo power curve.
Turbo's work best when there's a lot exhaust pressure and load on the engine to spool up the turbo. This is why his car pulled hard up top, but sucked down low.
Contrary to what many turbo guys will attempt to convince you of....even modern turbo systems suffer from boost lag in the lower RPM and load levels. It's just a drawback of the power adder many have to learn to deal with.
GOLDENPONY
Founding Member
Five Oh Brian
Member
+1. And may I add that I have a centrifugal blower which makes power much like a turbo. Since my 07 GThas little bottom end torque (like your friend's Cobalt SS), I bolstered that with 4.10 gears and a 4,800 rpm stall converter to launch the car hard right into the sweet spot of the blower's power curve. Once my car is moving, though, it's really moving. For example, from 0-60 mph I can beat a stock GT automatic by 1.4 seconds (3.7 vs 5.1), but from 0-100 mph my lead really widens by 3.8 seconds (9.9 vs 13.7) as the centrifugal (like a turbo) really comes on strong.
cycosarge
New Member
Awesome run for your 1st time at the track! And your 60' time is even more amazing when considering you ran with 4.10's on stock tires!
Just wondering, what was the weather like, and was the track well prepped?
You know what they say about opinions. I'll believe your claim when you post a few dyno graphs that show stock turbo Cobalt SS's producing 260 fwhp.
Well im not experienced enough of a track guy to know what a well prepped track means but the weather was pretty cool probably in the low 60's high 50's and it was pretty dry, elevation at 3900ft. But i had a little bit of tire spin but i lowered my pressure in my tires to 20 psi and it really helps out
