New VCM and solo axle back/ tune tomorrow

[StormSG553]

I got my VCM and solo axle back on!

I am having it locally tuned tomorrow

I will post results though I wish I had gotten a base before I installed the VCM and axle back

I was going to get headers but wasnt able to before my appt tomorrow but the guy tuning it said it would

Be An extra bill to have it tuned after the headers and X pipe are installed.

I am at 4300 ft so it will be interesting to see what the car is actually putting down and what it will after the

tune.

any guess as to what it might make?

[TooManyHobbies]

310 rwhp due to your altitude

[StormSG553]

310 rwhp due to your altitude

Yeah I'm not expecting much but figure until my headers do show I might get a little out of the intake and axle backs
Mostly wanted to see what some of you thought about the change in altitude vs sea level.

So if I do get 310 whp what would the difference be in elevation?
Sorry I don't know anything about how much HP is lost at altitude

I can't tell if the car had a canned tune in it when I bought it,
Will the shop I'm taking to be able to tell for sure?

[BuildItYourSelf]

Your HP loss is relative to air pressure. So basically your da.
Here is a formula for the average n/a engine -/+. The g8 will be less then what you calculate because it's less effective then most engines.
HP Loss = (elevation x 0.03 x horsepower @ sea level)/1000

[StormSG553]

Your HP loss is relative to air pressure. So basically your da.
Here is a formula for the average n/a engine -/+. The g8 will be less then what you calculate because it's less effective then most engines.
HP Loss = (elevation x 0.03 x horsepower @ sea level)/1000

If I did it right, and please excuse my math! I got a 43 HP loss for 4300 ft
I figured my car was making about 260 to the tires.

Thanks, assuming I did it right?...

[BuildItYourSelf]

Your making more then 260whp corrected stock.
But that's about right. It's just a estimation tho. Obviously your da will effect that as well. It's not uncommon for the da to change 5000ft during the day. So on say a 400hp car that's a 55hp loss or gain.
Some people say 10 hp/1000ft and there is alot of ways to guess but it's all relative to the da on a n/a engine.
I wouldn't worry to much about it.

[StormSG553]

I got 333 whp! Maybe the VCM really works?...
Either way it drives completely different in a good way!