Char's E92 Build thread

[Secret Chimp]

There's no such thing as a "worst part" on any modern exhaust system.

Those cats hanging off the log manifolds are probably some of the worst parts.

[AutobahnSHO]

There's no such thing as a "worst part" on any modern exhaust system.

That's retarded. Take a perfectly "tuned" exhaust and add a bad bend and you just messed it all up. That bad bend would be "the worst part", and fixing it has potential for better performance from the engine.

In the same thought, sure the OEMs build the best exhaust they can- FOR A PRICE, there is always room to improve it, and just like with a computer, you look at the "bottleneck" and upgrade that part first.

[12,000 RPM]

Generally no. Plus, by definition only "improving" one section is not tuning.

Who's definition is that?

[Soup DeVille]

There's no such thing as a "worst part" on any modern exhaust system.

LOL

Your belief in he infallibility of automakers at times borders on the comical.

[GoCougs]

Those cats hanging off the log manifolds are probably some of the worst parts.

Circa 1975 sure; automakers had to smog up motors but in modern times there's simply too much $$$ spent on powertrain development to botch exhaust (or intake or air filter or w/e ricer add-on du jour).

[GoCougs]

That's retarded. Take a perfectly "tuned" exhaust and add a bad bend and you just messed it all up. That bad bend would be "the worst part", and fixing it has potential for better performance from the engine.

In the same thought, sure the OEMs build the best exhaust they can- FOR A PRICE, there is always room to improve it, and just like with a computer, you look at the "bottleneck" and upgrade that part first.

Why would an automaker spend millions on a powertain only to "add a bad bend" to the exhaust system?

[GoCougs]

LOL

Your belief in he infallibility of automakers at times borders on the comical.

What would push it over the border?

[AutobahnSHO]

Why would an automaker spend millions on a powertain only to "add a bad bend" to the exhaust system?

They wouldn't. But let's say they didn't spend the time/cash to thoroughly examine all the variants, it's totally possible a better bend could be found.

Why on earth do you think HP and mileage go up every decade???  It's not because the cars made 20yrs ago were perfectly efficient... There's also a reason aftermarket parts are bought and used.

[FlatBlackCaddy]

 

[AutobahnSHO]

why doesn't he keep the flies of the poor animal's face, too?

[Char]

 

I don't know what the arguement is - you can make 5+whp (sometimes even more than 10whp) depending on the car. Look at the 7th Generation Accord V6. A full bolt on 370Z, including intake, header and or testpipe/high flow catalyst/exhaust and a tune can make upwards of 40-50whp

I'd be happy to post the dynos.

[68_427]

me too

[Soup DeVille]

ROFL

[AutobahnSHO]

[280Z Turbo]

LOL

Your belief in he infallibility of automakers at times borders on the comical.

It all fits into the larger narrative of Smart Guys^TM, the superiority of big business over small business and capitalism solving all problems in the world.

[Char]

me too

Never been a fan, and I hated Jurassic Park.

[Soup DeVille]

It all fits into the larger narrative of Smart Guys^TM, the superiority of big business over small business and capitalism solving all problems in the world.

Or, if you live in a world where everything is a clean sheet design without time or budget constraints, where last minute bean counter changes never happen, or where off the shelf designs are never shoehorned into applications where they just kinda fit.

[Eye of the Tiger]

Strangely familiar argument.

[12,000 RPM]

Why would an automaker spend millions on a powertain only to "add a bad bend" to the exhaust system?

You can't be this stupid....

[hotrodalex]

Look at the 7th Generation Accord V6. A full bolt on 370Z, including intake, header and or testpipe/high flow catalyst/exhaust and a tune can make upwards of 40-50whp

Wait you can bolt a 370Z onto an Accord? Whoa

[Char]

Wait you can bolt a 370Z onto an Accord? Whoa

In Sporty's case - you put a Accord in a 350Z.

[2o6]

Strangely familiar argument.

Can you skip ahead to the point where we give a fuck?

[Eye of the Tiger]

Can you skip ahead to the point where we give a fuck?

Whatever is in your ass... it can be removed.

[GoCougs]

They wouldn't. But let's say they didn't spend the time/cash to thoroughly examine all the variants, it's totally possible a better bend could be found.

Why on earth do you think HP and mileage go up every decade???  It's not because the cars made 20yrs ago were perfectly efficient... There's also a reason aftermarket parts are bought and used.

HP and mileage don't go up every decade because of a lack of bends.

Aftermarket parts like KASSY and CAIs and grounding kits are bought and used by people like Char (i.e., 'nuff said).

[GoCougs]

I don't know what the arguement is - you can make 5+whp (sometimes even more than 10whp) depending on the car. Look at the 7th Generation Accord V6. A full bolt on 370Z, including intake, header and or testpipe/high flow catalyst/exhaust and a tune can make upwards of 40-50whp

I'd be happy to post the dynos.

The "argument" is you do not know what you are talking about. KASSY is rice, lol at detecting 5whp on a chassis dyno, and there's a very good reason why a tune will void a power train warranty (i.e., also bad premise).

[Rupert]

I don't trust dynos unless there is a pretty serious effort at a scientific approach.

[Soup DeVille]

I don't trust dynos unless there is a pretty serious effort at a scientific approach.

All i know is that there's a serious difference between the dynos installed at the manufacturers and the dinky 24 inch roller Mustang dynos used by most tuning shops.

One if the calibration dynos at ford in Allen Park actually sits inside a hyperbaric chamber 

[Char]

All i know is that there's a serious difference between the dynos installed at the manufacturers and the dinky 24 inch roller Mustang dynos used by most tuning shops.

One if the calibration dynos at ford in Allen Park actually sits inside a hyperbaric chamber

Or you can use a dynojet that's actually calibrated by dynojet - and reads the same as another one across town.
I'm amused at people who criticize chassis dynos and have never used one themselves.

[Soup DeVille]

I've watched the exact same car make two runs within an hour of one another and get results that were 7-8 HP different.

They're good tools, but they shouldn't be worshipped as the supreme and flawless references that some internet bench racers treat them.

[Rupert]

All i know is that there's a serious difference between the dynos installed at the manufacturers and the dinky 24 inch roller Mustang dynos used by most tuning shops.

One if the calibration dynos at ford in Allen Park actually sits inside a hyperbaric chamber 

Well, all you should need to show a power change is same atmospheric conditions before and after changes, same other-conditions for the car (same plugs unless you're testing plugs, for example), same dyno-conditions, and a bunch of dyno runs for each before and after (statistically valid sample, seems like n=5 to 10 would be enough).

And I would never trust any dyno outside of the OEM (pretty much) to actually give the real number.