So I decided today would be a good day to run up the canyon and get some breakfast. I Jump in my 06 SS/SC and head up parleys canyon. For those who don't know, Parley's is a canyon here in Utah that is is either "the" or one of the longest steepest climbs in the world. So, naturally I like the drive . So i get up near the summit where it is alot higher above sea level than where you begin the journey. All the sudden my car loses a little power, so, I get off the gas and let it chill for a sec. All sounds well so I get on it again and it sputters.....I pull over turn the car off and check under the hood. All seems well. Pull back on to the road and it seems fine. After we eat and start heading back down i notice I am only boosting 12 and I usually boost 15. I have the intense stage 3. Todd and I determined that my car only boost 15 instead of 17 due to the elevation in salt lake city. Get to the bottom of the canyon and the car gradually works its way back to 15 lbs after a few pulls. Has anyone experienced problems with their cars while driving up any kind of elevation change??

thanks guys


J_Rod

 

Its a rarity. I would assume you answered your own question. I dont know what the difference in the elevation was, but it can definately effect how much air your Supercharger can push into you engine. It would only make sense the higher up you go the less PSI you will boost. I would take that as your answer and leave it at that. If you continue to have problems outside of big elevation changes, then I would take it to get looked at.

 

Did you have 93 octane the whole time during the climb? What was the elevation at the top?

 

You probably experience what i do every day. I have a 2.7" pulley and usually get 12-12.5 PSI here at 7000'. Your car was probably running very rich, i am on stock injectors with the Maf-t at 2% richer and it runs well. That is when a AFR guage would come in handy so you can tune as you go.

 

The highest you can get here is 91 but yes i had the same gas in the whole time

 

elevation probably went from 4200 to 6000 by the time i hit the summit

 

I was thinking you might have had a problem with too high of an octane at high altitude, but those numbers don't sound like that was the problem. I'll have to agree with the too rich theory now.