So I was at a local car show today and there was a portable dynojet set up doing pulls for $40 a pull. How could I pass that up! I'm just bolt ons and canned tune. did two pulls with best of 382 rwhp and 394 rwt. Very pleased and sounds in line with others with similar mods. Keeps the fire burning for next mods.

 

Nice!

 

Better than my 06 with full boltons ported fast and local Dyno tune! Hard to pass up a low cost Dyno pull offer.

 

So post the graphs and results !!

 

graphs look crazy but they said the numbers were good. They said they were getting interference.

 

I put down almost the exact same numbers when I had my baseline done before the s/c. LS2, CAI, Headers/exhaust and canned tune, so it seems fairly accurate

 

It can get addicting! I dyno'd all my mods after I did them and after I finished I overlaid them on one graph to see what each change made on its own.

Here is my thread if you're interested.

https://www.corvetteforum.com/forums...ast-heads.html

Those numbers are a little suspect I hate to tell you, not just the huge drop which I can't explain, but that 109 degree temperature they were reading makes the dyno correction, at 1.07, really high. I think I see an Iowa plate, so I can't imagine it was really 109 degrees. That's a great way for dyno operators to show people higher numbers, just put the temp sensor under the dyno or somewhere where it's really hot which drives up the correction factor and causes the dyno numbers to be falsely high (but people happy). Best place would be in front of the grille of the car where the car is drawing air. The way it works is, the temp and baro sensors use ambient temp at the time of the dyno to come up with a correction factor as if the dyno was at sea level and I think 68 degrees. If you make the dyno think it's a lot hotter than it is, the correction factor applied to the actual numbers is a lot higher and thus, the dyno results appear higher than they should. Divide your numbers by the correction factor to see what it actually did on that run.

Regardless, if you start to do more mods, find a shop with a dyno and get before and after shots, then you'll see what your mods are doing (and you can often find places to do retunes for free or much less than the first tune).

 

Truck and dyno were from Tennessee but were set up in Ky. Temps were mid 90's and high humidity.