Car doesnt seem Faster with New Longtubes
05-01-2009, 08:52 AM
#1
Car doesnt seem Faster with New Longtubes i just installed Pacesetter LT's and O/r Y deleted the EGR and also installed the Eibach Prokit and the car doesnt seem like its running like it used to and just doesnt seem like it has any more power... could this be due to the fact that i Deleted the Egr and have not got a Tune yet ?
05-01-2009, 09:04 AM
#2
When I first got my LT's installed, I noticed it pulled alot harder on the expressway when I'd run it in 4th.
Also, since this was before the tune, I found that the car pulled harder at 90% throttle or so, than it did at full throttle. I would guess that this was because it was still in closed loop so the computer was at least attempting to make some adjustments for the longtubes.
Also, since this was before the tune, I found that the car pulled harder at 90% throttle or so, than it did at full throttle. I would guess that this was because it was still in closed loop so the computer was at least attempting to make some adjustments for the longtubes.
05-01-2009, 09:11 AM
#3
When I first got my LT's installed, I noticed it pulled alot harder on the expressway when I'd run it in 4th.
Also, since this was before the tune, I found that the car pulled harder at 90% throttle or so, than it did at full throttle. I would guess that this was because it was still in closed loop so the computer was at least attempting to make some adjustments for the longtubes.
Also, since this was before the tune, I found that the car pulled harder at 90% throttle or so, than it did at full throttle. I would guess that this was because it was still in closed loop so the computer was at least attempting to make some adjustments for the longtubes.
05-01-2009, 09:17 AM
#4
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Ya, I just installed my headers and ory. I got race headers so I deleted my A.I.R. After I installed them I did notice that it felt a little doggy, but like previously stated when I got on the highway 3rd and 4th pulled alot harder than before. I just sent my PCM over to Steve @ tunedbyfrost.com. I heard they do really good mail order tuning. So when I get that back I'll see the difference.
05-01-2009, 09:42 AM
#6
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sometimes the LTs will change the power curve a little bit.
making it feel like you didn't gain, or sometimes lost power in lower rpms.
the EGR will have no affect on the running condition of the engine. the SES it trips is strictly a dummy light.
its POSSIBLE you have a leak someplace and its affecting your a/f, causing less than anticipated gains.
making it feel like you didn't gain, or sometimes lost power in lower rpms.
the EGR will have no affect on the running condition of the engine. the SES it trips is strictly a dummy light.
its POSSIBLE you have a leak someplace and its affecting your a/f, causing less than anticipated gains.
05-01-2009, 09:47 AM
#7
You computer needs time to learn of the new flow, its going to take a while... you dont really need a tune, the car will be faster even without one (not to say it wouldn't benefit from a tune). Also most of the power difference is up top... try a few highway pulls... it should feel good.
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05-01-2009, 10:45 AM
#10
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I had the same thing happen on my 97. It took the computer about 5 or 6 good drives before I noticed it was starting to "learn" the new hardware. Any difference in idle speed? Mine was over 1k for those 5 or 6 drive cycles then it returned to normal. +1 on give it time to learn.
05-01-2009, 11:35 AM
#11
I had the same thing happen on my 97. It took the computer about 5 or 6 good drives before I noticed it was starting to "learn" the new hardware. Any difference in idle speed? Mine was over 1k for those 5 or 6 drive cycles then it returned to normal. +1 on give it time to learn.
05-01-2009, 03:00 PM
#14
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You need a tune to get maximum power out of the longtubes, but you should really feel quite a difference even without a tune. So do what the other guy's suggested. I know when i installed mine, i felt it right off the start but then again. I really didnt take it out for a spirited ride for a week. So maybe throughout the week, the car got used to it but im without a tune at the moment and i really feel the power throughout all ranges. 40's very weak for A4 car's, now it pulls just a bit better which is noticeable but still sucks. From a 30 roll, it sits my *** in the seat alot more lol 65 roll, you feel it pull hard. It really kicks in....
You will run a lil rich without the tune. Just check everything out, maybe you gotta leak or something causing the car to run bad or just needs the time for the ECM to figure things out.
You will run a lil rich without the tune. Just check everything out, maybe you gotta leak or something causing the car to run bad or just needs the time for the ECM to figure things out.
05-01-2009, 03:16 PM
#15
IDK, I pulled my AIR Pump and EGR and now my cruise doesn't work. Been without it for a couple months now.
So it makes me wonder if the EGR is tied into other systems on the car or not??
So it makes me wonder if the EGR is tied into other systems on the car or not??
05-01-2009, 03:37 PM
#18
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I really noticed little difference when i installed my headers (1-7/8 ARH race headers with cats on a stock 346). Almost felt a little sluggish (may have just been because it was louder, but didn't seem faster) felt a little stronger up top, but nothing down low. I didn't wait for the computer to relearn and got a tune the next week.
Never had it dynoed before so I don't know the overall gains of pre-header vs header. But just the tune did alot after the header install.
The tune brought the peak up 35rwhp and 30rwtq.
At 2500 rpm everything shifted up, my rwhp was up 35 and rwtq was up 55.
The tune really woke things up....day and night difference.
Never had it dynoed before so I don't know the overall gains of pre-header vs header. But just the tune did alot after the header install.
The tune brought the peak up 35rwhp and 30rwtq.
At 2500 rpm everything shifted up, my rwhp was up 35 and rwtq was up 55.
The tune really woke things up....day and night difference.
05-01-2009, 03:38 PM
#19
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Does the new stuff bang against the car? If it does it will pull timing. LT do not give great gains till u add a cam. Do you have a lid? They all add together. It does not take long at all to learn new mods by the way. Make sure you do not have a leak.