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Back to the Dyno baseline & new fast time


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My Monday dyno has been pulled up to Saturday, so I ran out to set a new baseline today.

New low time today — a 4.55 sec 0-60 mph with rollout, or 4.94 sec w/o rollout. This was my goal for the V — to get to a solid <5 sec without rollout. Car had 3/4 tank of fuel and the run not heat soaked. The STS-V has the Spectre cold air intake and a Corsa axle-back exhaust system. I weigh 35 lbs more than the standard 160 lbs for the buff magazine journalists who get the great times for car mag tests. Local fuel is 93 octane E10. The backup 0-60 run was 4.74/5.13 sec.

The 60′ time was 2.2 sec, which is an improvement from my usual 2.4 sec. PkAccelG was 0.77G. The 1-2 shift was recorded at 0.4 seconds.

scanner2012-04-06b1.png

Read More: http://caddyinfo.com/wordpress/?p=12193

Bruce

2023 Cadillac CT4-V Blackwing

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Good times...

Glad to hear it...

I can't make it to the dyno on Sat... I had been planning on coming out Monday to watch...

Maybe I can meet you next time...

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Nice improvement Bruce

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Had fun having lunch with my Motorama friends at Uncle Julio's to celebrate Donna McClellan of the Arlington plant's birthday, then headed up to True Street Motorsports. Good info on the dyno, and putting down a solid 394 whp, or 493-505 crank hp (20-22% trans losses for 6L80 transmission. Article on the way.

Bruce

2023 Cadillac CT4-V Blackwing

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Here is the dyno graph:

stsv_today_withdetail.png

Adding the Corsa exhaust to the Spectre CAI freed up another 19 whp and 21 lb ft of torque.

I wish there was a way to stabilize the intercooler heat load on the dyno.

So close to 400 whp but needs another adder.

Full article: http://caddyinfo.com/wordpress/?p=12241

Bruce

2023 Cadillac CT4-V Blackwing

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Nice work Bruce

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Jim I think you'll approve of the changes. It moves pretty well now.

Now if I can find an intercooler cooling solution that works well for this application.

Bruce

2023 Cadillac CT4-V Blackwing

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Nice work Bruce

This was the result I was hoping but it was good to document how these parts work together. Conventional wisdom among STS-V owners online is that the Corsa's don't add much, but clearly they do quite well along with the CAI.

Bruce

2023 Cadillac CT4-V Blackwing

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