Severe power loss during summer with Vortech
05-05-2008, 12:12 PM
#1
2nd Gear Member
Thread Starter
Join Date: Nov 2006
Location: NC
Posts: 184
Severe power loss during summer with Vortech
Does anybody running a Vortech have a complete loss of power from like 2k-4k during the summer months? I had a Vortech installed and tuned in December. The car runs like a champ and the tires break loose through 3rd....until it gets hot outside. Then the car is slower than stock in the 2k-4k range...no exaggeration whatsoever. Is this in the tune or what. I'm only pushing 6-7lbs on the boost gauge so I'm assuming the air isn't TOO hot going into the engine. Coolant temps are normal. The car just runs like a beast when the engine is cool, but once it warms up during the summer it's slower than stock until 5k or so.
05-05-2008, 12:20 PM
#3
3rd Gear Member
Join Date: Mar 2007
Location: Where gunshots are more common than birds chirping
Posts: 504
RE: Severe power loss during summer with Vortech
Just wait until it gets humid. That will kill it more than any IAT. All the water displacing the oxygen in the air is going to KILL your car.
High IAT's can be cured with methanol, aftercooler, air to air intercooler, or any number of cooling methods, but there's no way around humid air really.
High IAT's can be cured with methanol, aftercooler, air to air intercooler, or any number of cooling methods, but there's no way around humid air really.
05-05-2008, 03:45 PM
#4
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
RE: Severe power loss during summer with Vortech
At 7psi with 100°F intake air the output from the Vortech will be up around 180°. At 50° going in it would only be 112° or so... [/align][/align]Like 35thAnni said--methanol spray, or some sort of intercooler are the options.[/align][/align][/align][/align]
05-05-2008, 03:51 PM
#5
5th Gear Member
Join Date: Sep 2006
Location: CA
Posts: 4,039
RE: Severe power loss during summer with Vortech
The lack of intercooler/aftercooler or methanol injection is whats killing you. When the IAT rises, your PCM is forced to pull timing out to prevent detonation. Less timing usually results in less power. If you had some sort of intercooler, your IATs would be lower and more consistent allowing for more timing and thus more power.
05-05-2008, 04:25 PM
#6
Join Date: Apr 2008
Location:
Posts: 14
RE: Severe power loss during summer with Vortech
I would expect this when it's 98 degrees out with a lot of humidity. Doesn't seem like it should be that severe in early Spring. I had a non-intercooled set up for about a year, could feel a power loss when it's hot, but nothing major, and that's on a twin screw that makes more heat. I'd check your tune, doesn't sound right to me.
05-06-2008, 05:06 AM
#8
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
RE: Severe power loss during summer with Vortech
ORIGINAL: FDNYBullitt
You can install a timing adjusterand kick it up forthe summer months AND add a Snow alky kit. You'll be pleasantly suprised at the difference.
You can install a timing adjusterand kick it up forthe summer months AND add a Snow alky kit. You'll be pleasantly suprised at the difference.
05-06-2008, 05:16 AM
#9
6th Gear Member
Join Date: May 2006
Location: Ohio
Posts: 6,448
RE: Severe power loss during summer with Vortech
+1. The air is much hotter in the summer and you better be careful. You could detonate depending on the tune that is in it now. You should never, never, never, never get your car tuned in winter weather. Wait for a 70* day and tune it.
05-07-2008, 08:27 AM
#10
5th Gear Member
Join Date: Dec 2004
Location: In between Your Mom's Titties, skeet skeet..
Posts: 2,045
RE: Severe power loss during summer with Vortech
I vote for I/Cer since it's almost a necessity if you live in a hotter climate.. methanol is great, but can be costly, depending on how much you use.. I/C is a bolt-on, permanent way to get those IATs down.. Bar and plate is the best style, since there is much less of loss over the I/C, vs. tube/fin...
JT
JT