Installed headers car just dont feel the same
Thread Starter
Teching In
Joined: Oct 2007
Posts: 14
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From: Dover, PA
Installed headers car just dont feel the same Hey just wounding if anyone knows why im not getting at much power as i was the car just doesn't feel as fast as it did before i but the headers and TD's on there are no leaks. just wounding should i have it tuned would that make a difference. or something like if someone could help me out please 
i had the exact same problem but it is said you will loose just a tad bit of power on the bottom end. But i have had mind for a few months now. And im not sure if i am just getting use to it or if the power is back. Bc it feels normal now. Then again my y pipe was hitting and my knock sensor was being set off and retarding the timing a bit.
Thread Starter
Teching In
Joined: Oct 2007
Posts: 14
Likes: 0
From: Dover, PA
Good God the grammar, punctuation, and spelling on this thread hurts!!
Anyway, I want to help:
1. What exhaust set up did you have before?
2. What do you have now, specifically?
3. Double check plug wires and all your sensors, might be simple
4. You need a TUNE, need to know 1 and 2 to tell you how bad you need it.
5. Check maintenance items - specifically air filter, fuel filter, dirty injectors
Anyway, I want to help:
1. What exhaust set up did you have before?
2. What do you have now, specifically?
3. Double check plug wires and all your sensors, might be simple
4. You need a TUNE, need to know 1 and 2 to tell you how bad you need it.
5. Check maintenance items - specifically air filter, fuel filter, dirty injectors
Trending Topics
my car felt slower, but in reality picked up ~8 mph at the track with just the addition of headers and true duals, no tune yet. ultimately the car picked up ~10 mph when all was said and done + the addition of an udp.
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Thread Starter
Teching In
Joined: Oct 2007
Posts: 14
Likes: 0
From: Dover, PA
Ok well I have pacesetter headers and ture duels, not sure of the name on the mufflers bought them off my buddy.
I had everything stock back to the muffler wich was a flowmaster, but everything esle was stock
I have checked all the sparkplugs and plug wires. I need to check the o2 senors maybe they are what is wronge.
I had everything stock back to the muffler wich was a flowmaster, but everything esle was stock
I have checked all the sparkplugs and plug wires. I need to check the o2 senors maybe they are what is wronge.
I was just about to mention that. I would check all the simple stuff first like jmilz28 said. On the tune part, other than having the AIR, EGR, and rear 02's deleted, a tune isn't necessary. Since you are however gonna have someone in there doing that I would get them to do a tune. Now, I personally have seen DYNO TUNES with just simple mods like yours actually turn out some nice #'s. I would go for the dyno tune and have them delete all that other stuff while they're in there. You'll feel a difference then.
Launching!
Joined: Feb 2008
Posts: 232
Likes: 0
From: fenton, MO
i would prolly say that the tune will make the diff, cause if your throwing SES codes the car will bounce from lean to rich and it will cause that running out longer in each gear and make the car run like crap.
TECH Addict
Joined: Nov 2005
Posts: 2,379
Likes: 2
I gained across the whole torque and power band when I just did headers and true duals.
It's in your head (as long as it's not tossing a code).
The reason I figure it feels slow is because the biggest gain is in the upper rpm. This makes the smaller gain in the lower rpm feel like a loss. I found the car easier to launch off idle and took even lower of an rpm to spin the tires even though down low I thought I lost power. My trap speeds were 98-100mph on normal days, 102mph on cooler days, after that I trapped as high as 107 mph on a scorching 90 degree days.
It's in your head (as long as it's not tossing a code).
The reason I figure it feels slow is because the biggest gain is in the upper rpm. This makes the smaller gain in the lower rpm feel like a loss. I found the car easier to launch off idle and took even lower of an rpm to spin the tires even though down low I thought I lost power. My trap speeds were 98-100mph on normal days, 102mph on cooler days, after that I trapped as high as 107 mph on a scorching 90 degree days.
I was wondering if I should bring that up, but thanks for doing so yourself.
I know that you can "feel" the difference when you install something new on your car but how can you know for sure if you dont have a before and after dyno numbers?
Banned
Joined: Apr 2006
Posts: 1,875
Likes: 1
From: Naperville, IL
lol what did your car trap before the headers and tune? 98-99mph?