A/t vs m/t

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Old Jan 29, 2012 | 02:49 PM
  #1  
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A/t vs m/t

Hope I'm in the right place to post this

Recently I have been racing my friends automatic tl
I drive a 2004 tl manual and his is I believe 2007 or 2008 automatic
I have been loosing to him by at least half a car to a car
His mods are
P2r throttle body spacer
Rv6 jpipe
Weapon r short ram intake

My mods are
Custom exhaust
P2r throttle body spacer
Fujita cold air intake

When I take off were usually even because I loose a bit of traction web launching then after about 2nd gear he starts to pull away and by 3rd were even and when we both hit vtec he's a car away. Could it be because I have a full audio system ? Have a 50lb sub an 35 lb amp in trunk .? Could I be my launching I launched once at 3k rpm and once at roughly 3k rpm but he takes me or could it just be because of his jpipe
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Old Jan 29, 2012 | 05:39 PM
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His jpipe and your added weight....

all the base models are at around 268 to the crank and after a 20% drivetrain loss sit right at 210-ish for the AT's

where are the MT have like a 15% loss so they are at 220-ish....

his jpipe adds ~8-10 hp, so he is right where you are....

now your added weight from the sub plus "spinning" ends into loss....

dont get me wrong here but if you learn how to launch, i think you will beat him by 1/2 car to a car length....
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Old Jan 29, 2012 | 08:12 PM
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You just suck at driving OP. Stop racing on the streets, genious.
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Old Jan 29, 2012 | 08:23 PM
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mY sLOW UA6's Avatar
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Originally Posted by swoosh
His jpipe and your added weight....

all the base models are at around 268 to the crank and after a 20% drivetrain loss sit right at 210-ish for the AT's

where are the MT have like a 15% loss so they are at 220-ish....

his jpipe adds ~8-10 hp, so he is right where you are....

now your added weight from the sub plus "spinning" ends into loss....

dont get me wrong here but if you learn how to launch, i think you will beat him by 1/2 car to a car length....
Couldn't have said it better.
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Old Jan 29, 2012 | 08:47 PM
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I raced a 5AT TL with my 6 speed Accord and put some major car lengths on him with only an intake / J-Pipe.

I recommend removing the check valve on the slave cylinder and learning how to drive a bit better, 6MT > AT with similar mods all day.
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Old Jan 30, 2012 | 05:03 AM
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keep in mind that the 07-08 TL has a different transmission gearing for the automatics...so I think the 07-08 TL AT will be faster than the 04-06 TL AT given equal conditions.
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Old Jan 30, 2012 | 09:43 AM
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You should be pulling away from your friend, even if you were stock and him modded. His 3rd gear drops below VTEC while you should be right in it. Are you shifting at redline? I ran my buddy's 5AT Accord (stock) while I had I/Jpipe, a passenger, and 2 full golf bags. I was still at an advantage despite the added weight, but he got a decent jump from an 80 mph roll and I still passed him by 100. So basically the bottom of my 4th gear pulled harder than the top of his 3rd. You should be walking him rather easily (2+ lengths).
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Old Jan 30, 2012 | 05:56 PM
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Practice. That's how you'll win against him.
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Old Feb 2, 2012 | 10:30 AM
  #9  
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You guys made Rooster gone scratching his head. It's drivers race and more importantly. His auto + Jpipe vs your manual + LSD + custom exhaust. You as a manual have more advantage and therefor would have won.

Auto TL 1rst--------2nd------3rd------------4th
Manual TL 1rst------2nd--------3rd---------4th

From that graph, that was your race. It shows that you gained traction on 2nd to keep up to 3rd with him. Once in 3rd, you are losing power and he starts to pull from you. This tells me that you either shifted early or you did something wrong on your drivers part.
Jpipe or no, his auto TL should be on par with your manual TL with LSD.

Race should of been equal all the way.

Auto TL 1rst------2nd--------3rd---------4th
Manual TL 1rst------2nd---------3rd---------4th

The outcome should of been him being side by side or hanging by your drivers door, if not, dead even all the way.

You could have spun most in 1rst.
You could have shifted late.
He could have better tires that your stock all seasons
Too many specualtions here.

But do a highway run on 2nd gear to 4th and not from a dead stop. The outcome here would be different.

3K is what I would do at the drag strip, 2K to 2.5K is where I'd start out on the street.
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Old Feb 2, 2012 | 12:42 PM
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Race should be done stock for stock. But of course the manual transmission is superior.

Plus your driving ability determines the outcome. Manual cars highly rely on drivers input.
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Old Feb 5, 2012 | 12:23 AM
  #11  
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3rd is still in vtec...4th drops off..and idk i think you guys are underestimating the auto...more than you should be at least. Id love to run a 6mt just to see the real difference...i have a gopro and a perfect place to run 0-109(top of my 3rd) because after that we all know what will happen
Originally Posted by Sonnick
You should be pulling away from your friend, even if you were stock and him modded. His 3rd gear drops below VTEC while you should be right in it. Are you shifting at redline? I ran my buddy's 5AT Accord (stock) while I had I/Jpipe, a passenger, and 2 full golf bags. I was still at an advantage despite the added weight, but he got a decent jump from an 80 mph roll and I still passed him by 100. So basically the bottom of my 4th gear pulled harder than the top of his 3rd. You should be walking him rather easily (2+ lengths).
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Old Feb 5, 2012 | 12:29 AM
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^^^ i rather do 50mph pulls....

50mph is the top of 2nd....so you get a jump on the MT's then a quick AT shift to 3rd.....

by the time they recover, race it over
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Old Feb 5, 2012 | 11:48 AM
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Originally Posted by swoosh
^^^ i rather do 50mph pulls....

50mph is the top of 2nd....so you get a jump on the MT's then a quick AT shift to 3rd.....

by the time they recover, race it over
What's there for the 6MT to recover from? The 6MT pulls hard from 50 mph in second. Mod for mod, there's always going to be a 3-4 mph difference, which is a pretty steady walk.
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Old Feb 5, 2012 | 11:53 AM
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Originally Posted by anx1300c
What's there for the 6MT to recover from? The 6MT pulls hard from 50 mph in second. Mod for mod, there's always going to be a 3-4 mph difference, which is a pretty steady walk.
Agreed.

There's always room for driver error driving 6MT, but I can't think of the last time I missed a gear, hit the limiter or short shifted during a race.

Hardest part is going from a dig with VSA off, my 1st gear is almost useless @ WOT.
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Old Feb 5, 2012 | 11:23 PM
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^^^ exactly what i meant....

yeah the 1st gear is useless....keeps spinning and when it latches on the ECU shifts early (~5K rpm) even in the SS mode
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Old Feb 6, 2012 | 09:45 AM
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It would take a fully modded(I/E/Jpipe/PCD's/Lightweight Crank Pulley) TL Auto to even come close to competing with a stock 6Spd TL, given that the driver of the 6spd knows what he is doing. The TL auto, stock is a low 15 second car. The 6spd TL can run low-mid 14's (14.3-14.4). There is a lot of ground to make up here.

Rooster, are you using premium fuel? Next time you drive his and he should drive yours. Your car is the faster ride.
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Old Feb 6, 2012 | 10:51 AM
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^^ Good idea. Switch drivers and see what happens.

ATLM5: From what I've seen, 3rd gear drops below VTEC (around 4500RPM) and takes a full second or so to reach VTEC in 3rd gear. I'm pretty sure even the 1-2 drops below VTEC for a time (albeit very short). I don't have an auto, but I've seen enough videos of them to come to that conclusion. But then again, shift points do matter. I could see the 1-2 shift being in VTEC with a redline shift, but not the 2-3.

50 roll is great for the 6MT as we are right at the top of 2nd as well :p With a quick shift it's much faster than starting in 3rd.

You guys are forgetting that the AT loses more power through the drivetrain as well. There is less power to pull through the longer gears, hence why the 6MT is a good bit faster.
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Old Feb 6, 2012 | 01:05 PM
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^^^ I agree point for point with you Sonnick....Hence I was telling Rooster that he needs to spend some more time with the stick....

The AT does have some lags (drivetrain) but the computer shifts quicker than a human....hence on the 50mph the AT gets a little jump.....the MT recovers quickly as its lighter and less losses....

either way I think it comes down to the driver
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Old Feb 6, 2012 | 01:35 PM
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I think the OP should go around offering handjobs. That may help his...........wait, did I just say that out loud?
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Old Feb 6, 2012 | 01:48 PM
  #20  
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^^^ ahahha you let you secret out LOL....or if i can rephrase it to:

"so the cat is finally out of the bag"
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Old Feb 7, 2012 | 12:26 PM
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all I can say is my at doesnt drop out of vtec until 4th and im fairly sure with my current mods (no catback) that I could take a stock 6mt
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Old Feb 7, 2012 | 01:37 PM
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^^ Maybe I am mistaken, but every video I've seen of the AT it drops out of VTEC in 3rd gear and doesn't reach VTEC again until ~80mph. It's possible though that the vids I've seen didn't use sport shift and therfore didn't take it to redline.

I think if I was driving I'd take ya I think it'd be a very good race regardless of outcome for sure.
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