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LTs and TDs and care is still slow

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Old Aug 2, 2007 | 11:16 PM
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Default LTs and TDs and car is still slow

I have longtubes and 3 inch true duals and high flow cats, now my car just sounds spectacular, but no faster than with the stock manifolds and magnaflow cat back. 13.17 before and 13.18 after . any tips?

Last edited by BoneStockLs1; Aug 2, 2007 at 11:39 PM.
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Old Aug 2, 2007 | 11:19 PM
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Are you tuned?
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Old Aug 2, 2007 | 11:19 PM
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what are you 60 ft's before and after? Did you pick up any mph on your trap speed?
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Old Aug 2, 2007 | 11:21 PM
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With those mods, you should see an increase in your trap speeds a bit. Not so much on your '60
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Old Aug 2, 2007 | 11:27 PM
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60 fts are about the same, and so is trap speed, no tune though
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Old Aug 2, 2007 | 11:29 PM
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Get a tune!
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Old Aug 2, 2007 | 11:32 PM
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Sounds like tune and tires and driver.
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Old Aug 2, 2007 | 11:33 PM
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Does it feel like something's not right? You could have a problem with a spark plug or O2.
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Old Aug 2, 2007 | 11:34 PM
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dont be silly, its not the driver, all i have to do is point and shoot, its an a4
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Old Aug 2, 2007 | 11:37 PM
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Originally Posted by tylerdj
Does it feel like something's not right? You could have a problem with a spark plug or O2.
it seems like it runs great, just not faster. its not throwing lights or anything.
Would a tune make much difference on my car?
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Old Aug 2, 2007 | 11:38 PM
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1, there is more to driving an A4 than just flooring it....and 2 yes a tune would make a big difference.
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Old Aug 2, 2007 | 11:44 PM
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Originally Posted by blueeyeddevil141
1, there is more to driving an A4 than just flooring it....and 2 yes a tune would make a big difference.
1.) not really, iv had it at the track quite a few times (maybe 20-30 passes) and it is very consistant, no wheelspin from high or low rpm launches.
2.) I'll have to get a tune then, thanks for the replies
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Old Aug 3, 2007 | 12:08 AM
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Originally Posted by blueeyeddevil141
1, there is more to driving an A4 than just flooring it
there really isn't

-Adam
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Old Aug 3, 2007 | 12:09 AM
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Adam, you miss 2nd in your M6, no driving tips from you.
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Old Aug 3, 2007 | 01:38 AM
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weather conditions can effect et and mph drastically..chances are the conditions you raced in after install were much worse than originally. I'm sure you picked up power!
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Old Aug 3, 2007 | 02:29 AM
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you need a tune. with your a4 and headers a tune will make a BIG difference.
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Old Aug 3, 2007 | 04:51 AM
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my tune i didnt pick up much, 6hp and 0tq. I think its more for driveability than for power.
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Old Aug 3, 2007 | 06:56 AM
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Get a higher stall torque converter- best mod for an A4.

Get a tune- some cars run rich after installing LT's, and the LS1 tune from the factory is very conservative- leaving power on the table.

Higher temps and humidity of summer should make your car slower (assuming your baseline times were in cooler conditions)...if you are running the same times as you ran in better air, you have picked up some power.
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Old Aug 3, 2007 | 07:33 AM
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with my cat back set up I went 13.1 at 107.8 then went to my true dual set up and went 12.84 at 111.8 and then tuned it and it went 12.76 at 111.2 I ran 5 psi lower on the the tuned run and didnt air up the front either. thats why the MPH was slightly lower.
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Old Aug 3, 2007 | 10:11 AM
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STALL STALL STALL, get a yank or something similar, speed is up to you and where you will primarily drive the car, do a search on best deals for converters
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