davewhodavedunn

I just bought a ATLP j pipe. Now I am ready if I run it on just the oem system I will loose torque and experience bottle-necking. First off why would this be? what is bottle-necking?

I am getting a cat back system in a month but will put the j pipe on first.

I am also wondering what this ECU reset is all about, do I just do the ECU rest be doing the gas pedal 20 second rule, or is there more to it?

ugh let me know guys im stressing

justnspace

iTrader: (1)

Do you not do your research before you buy?
And as much as you've been on here, I'd expect you'd learn now.
btw, this is the 4th gen section.
please go to dictionary.com and type in bottle-necking in the search field.
I'm not sure of the ALTP J-pipe, but the RV6 V3 j-pipe has better low end gains. you should have bought that one.
you don't have to reset the ECU. the ECU will learn this mod.

Please do not stress, you'll cause an aneurysm.
kthxbye.

davewhodavedunn

hahahahaha....I heard the gains are the same for the ATLP and RV6 pipe...anyways I did a TON of research trust me. I heard of this only after I made my purchase.

Anyways I got smoked by an 06 g35 coupe tonight and Im pissed so I gotta make this car faster!

justnspace

iTrader: (1)

if you've done your research like you said you did, you wouldnt have these questions.

Italiano

your not going to beat a g35 bottle necking would happen with any pipe 2.5 going into a smaller diameter pipe. Atlp is an excellent pipe. You made a good decision. you can put it on now it wont hurt it. it. you will feel a smoother flow right away. but if you try to hit the gas hard you will feel the bottle necking until you complete your exhaust. Dont stress

Italiano

by the way you are in the right secton. 3g performance and modification

justnspace

iTrader: (1)

it was moved. earlier this morning it was posted in the 4th gen.

davewhodavedunn

Thanks Italiano. It's good to hear from someone who doesnt just talk shit on this site. I have contacted many companies for parts etc and mentioned I am from this site. They told me they can not beleive how many negative people are on here, as well as "shit talkers" I told them I know, but there are some good ones.


I still don't know why a TL can not beat a G35 2005, similar hp/tq and weight....

Italiano

No problem the G35 coupes are just quicker. i believe they are mostly
manuals as well. It is what it is

davewhodavedunn

it is embarasing that what it is!

Souljah

To be honest... our cars have no torque off the line.
That is what gets us.
As for j-pipe. Excellent choice. I have the same one. Think of our exhaust system as a four part unit.

Primary cats - J-Pipe - Third Cat - Catback Exhaust

Insert your J-Pipe into the mix and take a look. You are widening only that area of the unit. Really only adding a little more free flowing at that part then it smacks back into the third cat with smaller diameter. So It will give mediocre gains at best. Hope this helps!



P.S. Send that G35 my way.
-

AtlM5

With a few mods you should have that G35 in your rearview...at least from a roll.

davewhodavedunn

that is why I am adding a few more mods. I have a K&N CAI. J Pipe is on it's way, same with the cat back.

Bayam0n

Lol, kinda harsh on Justnspace aren't we

not everyone on Azine talks shyt, we just dont like to sugar code things.

But I understand you, no matter how much research you do, you can always miss something. Our Honda's... I mean Acura's are not as fast as the look may suggest. We just have to face it, the G35, as ugly as it may appear (inside and out) it will take us stock vs stock.

justnspace

iTrader: (1)

It's just frustrating, Dave.
you've been here longer than I have.
Everything that you ask has been asked before.
I want to see you succeed. All the information is at your fingertips.
All I'm trying to say is utilize the information you have at hand. Be confident in your purchases. Be confident in the mods that you do. Everything has been documented and laid out on the acurazine table for you and I. Sorry for giving you shit all the time.

btw, the RV6 V3 takes out two of the four parts of the exhaust. Better free flowing J-pipe with longer primaries to get rid of the 3rd cat. Producing better low end gains.

ggesq

iTrader: (1)

RWD > FWD- less power lost to the wheels, Depends on the driver and launch. Oh yeah, lose your big wheels if you want to notice acceleration gains.

Regarding your other observation, ever wonder why a large majority of the knowledgeable OG's don't respond to your threads? Maybe it's because every single time you start a thread you become combative (like this thread) and do what you want to do anyway without listening to cogent sound advice?

Bayam0n

lol j/k

AtlM5

Actually there is more power lost to the wheels i.e. more drivetrain loss in RWD vs FWD...correcting a mega mod FTW On highway rolls FWD is technically better than RWD with all else being equal. But I guess you were trying to say off the line you can put more power down without spin.

Sonnick

Dave: When you ask a question that's been starved, whipped, beaten, and creamated, you can't expect to get smiling faces and open hearts. You said you did a TON of research, well clearly not enough because this is one of the simplest questions out there.

There are dynos with just the stock exhaust and the added Jpipe. Did you see loss of torque? I sure didn't. Will you be bottlenecking your exhaust? Sure. You are sticking a larger pipe in the middle of 2 smaller pipes. In order to experience the full gains of the Jpipe, you need to buy an exhaust. You can look at it as "I got good gains now, but with an exhaust they will be even better." A little plan for the future. Then, if you get the PCDs you will really feel the car open up. You should then find yourself neck and neck if not pulling on G35s (stock) in auto form.

Yonkers914

iTrader: (1)

PLus ++1

TylerT

iTrader: (1)

You won't lose power adding a J-pipe .. that's just silly.

I added a J-pipe to my completely stock exhaust (minus the 3rd cat delete) and I felt a great gain in the midrange ..

davewhodavedunn

whats a PCD?

Dino81

you are joking....ARENT you? I hope its just that canadian sense of humor...

Italiano

Primary cat deletes

davewhodavedunn

Sorry I didn't know the fucking lingo...Canadian humour? really? don't start a Canada VS Usa fight lol

AckTL05

iTrader: (18)

Just because your on azine doesn't mean everyone else knows what it means. I guarantee 90% of the outside world that doesn't know about azine will not know about PCD, since this is the only site that really advertises for them and such. Don't be ignorant.

Also. Buy the SUPERCHARGER that is for sale from a cool kid named ACKTL05 in the black market.

I hate cars

Exhaust restriction is the sum of all restrictions, not the largest restriction. If bottlenecking were so bad, turbo cars would not make any power or going by that logic we could run a 1.5" downpipe and cat back since that's about what the turbo necks down to.

Keep in mind the exhaust needs to be larger the closer to the engine it gets. As it cools toward the middle and end of the car, the size requirements go down.

It's not bottle necking in itself that's bad, it's the transition from one size pipe to the other that's a little more critical. You don't want to have a 2.5" J-pipe hitting the flange of a 2" pipe in the next joint.

However, you won't lose power and you won't lose torque with the j-pipe. You should gain power from just above idle to redline. You won't realize the full gains without the other components but you will still gain power.

AtlM5

+1 You wount loose power...bottle necking isn't that bad. And you don't just get power from the larger piping of the jpipe, the design of my ATLP has a much better flow than stock.

Inaccurate

Precat Deletes (click here)
E-106: Official Pre Cat Delete HOW TO DIY (click here)
Precat Deletes + Upgraded Jpipe + No 3rd Cat + Stock Exhaust = very sexy exhaust note (click here)
RV6 V2 Precat Delete (click here)
Precat-deletes V2 install (click here)
RV6 (Richie) PreCats **Groupbuy** (click here)
Pre-cats and low end torque (click here)
RV6 V2 Precat Delete Interest (click here)

powerflow

The TL is not a fast car, there will always be a faster car on the road. The 3G needs forced induction or serious weight loss/bolt-ons to be taken seriously.

Looks like you have larger sized wheels in your pic, that's not going to help either.

Dino81

I'm not the one being "ignorant" I.e. "unaware or uninformed". I use the search to my full advantage.

From post #3..."I. Did a TON of research" obviously not. If your researching jpipes and catbacks, one wojuld think there would be a mention of pcds SOMEWHERE. If not, when u type "PCDs" into the search, one of the first posts that pop up is "what are pcds?" Dave has 700+ posts..u mean to tell me he has never ran across pcds? Even if he hasn't, he could search and instantly get an answer, instead of posting, waiting for an answer to be spoonfed to him.

Look I'm not trying to be a dick, but dave has a ton of posts that have a similar theme of not searching. Imo, If u want help, u have to HELP YOURSELF too.

I haven't been here long..and I lurked a lot before I posted...researching and learning. So I didn't waste ppls time asking questions that have been asked and answered several times over.

And I was kidding about the canada dig...but from my experience, canadians can tend to have a lil different, drier sense of humor, I thought and hoped he was joking...my mistake.


Btw ack, what's a supercharger?

Dino81

With that being said, back on the topic

Dave, you'll be fine. Don't stress over bottlenecking. You will show gains..happy modding!

T Ho

I run the ATLP J-pipe with an otherwise stock exhaust- I definitely picked up all around, but the midrange gains especially are HUGE.

Do not sweat it.

OH_1fstgsr

Are you in a TL or TL Type-S?

Timb227

iTrader: (3)

Under his avatar pic it says 2006 TL, so he has a Tl, not Type-S.

OH_1fstgsr

Thanks, didn't see that. Still learning the nuances of this site.

Stock TL's are about 200-210whp.
350z/G35's are about 220whp.
FWD vs RWD
Weight transfer, tires (all season or summer), rim size and weight, DRIVER ability.
You have a few disadvantages against G35.

One option could be a lighter car, about 2700lbs, 190-200whp, and Azenis tires. My GSR has had some run ins’ before and track races.
One loss so far, and that was a boosted 350z.

MurkyRiversTL

Whats a TL and what type is "type-S" I cant find it in my font package.

integra92red

iTrader: (2)

Yep and absolutely.

Search. Simple.

Why is singling out and "beating" a G35 such a concern? Just curious.

BostonSilverTypeS

G35 hmmm, I have had no problem with them!! stock to minor mods that is!!! Slap that J-pipe and call it a day, you won't regret it

Souljah

Winnah! You crack me up. LMAO
Honestly tho, buy it from him. Reputable vendor on here and you won't regret the blower.

As always... Inaccurate puts my "helpful" posts to shame. Good stuff sir.