World's first FT86 Anti-Reversion,(A/R) Header

[industrial]

Originally Posted by zooki

"You don't understand, bro, my TC light comes on....it comes on....in a corner.....on, bro, on."
(:

With snow tires on. When it's cold!!! Proof!

[FirestormFRS]

I'm waiting for one the pro tuners or shops to weigh in. They seem to be either unaware or don't want to hurt this dudes feelings.

[Qadthane]

Originally Posted by Hyper4mance2k

No engine in the history of 4 stroke internal combustion needs backpressure. The exhaust needs velocity to scavenge all the spent energy from the combustion chamber. There are may ways to do this, but back pressure is not one of them. You are parroting misinformation and a lack of understanding of fluid dynamics.
For an engine to make peak torque at any RPM it must expell as much exhaust as it can at any given RPM. The key to doing this is exhaust gas velocity, not back pressure. Correct diameter pipes that maintain exhaust gas velocity, at the desired RPM and throttle position, are the key to making power.
The reason the back pressure myth continues is bacuse of people putting on too large of an exhaust system which is only effective at a small and high RPM range. At other RPMs and throttle positions too large of an exhaust pipe will cause the exhaust gas to have little to no gas velocity, and can add turbulant exhaust flow which will ultimately cause low RPM drivability issues; it's the reduction in velocity and flow rates that casue problems, not the reduction in back pressure.

Amen

[Poodles]

OP doesn't know how a torque converter works...

[phobos512]

Originally Posted by Poodles

OP doesn't know how a torque converter works...

I'll take Stall Torque Ratio for $1000, Alex. Oh, and your mother's a whore!

[OmarGC]

Originally Posted by KoolBRZ

Why not have both, a super exhaust, and a super charger.

I installed a super exhaust... Worked so well the dyno couldn't even read it. But all my bitches say dey feel it in dat ass doe.

[Turdinator]

Originally Posted by KoolBRZ

The ratio is the amount of leverage the engine has over the wheels. A stock manual has more wheel horsepower then an automatic because it has more leverage. Dyno tests have proven this over and over. You're telling me to get MY facts straight?

I appreciate you trying something different and am glad you like the results. You lost me with the above statement tho. A gear ratio is a gear ratio regardless of auto, manual or any other style of gearbox. In our case when the auto engages the lockup torque converter for a given ratio torque to the wheels should be pretty similar.

[KoolBRZ]

This is all beside the point. According to the Harley dyno pulls, the inserts should have given me less torque and less horsepower. I just pulled a trailer piled 6 ft high with branches from a wind-blown tree I'm cleaning up, to the recyclers. I suppose I fantasized towing my trailer as well, since my car couldn't have enough torque to pull a trailer with these Harley (scam) inserts installed. So I'll just go on my merry way, blind in my belief of extra torque. Like the emperors new clothes I suppose. What do I need to do to prove it, do a tractor pull? Because dynos are only good for full throttle testing, not low RPM partial throttle testing.

[sw20kosh]

not sure if serious? you are comparing something that has been proven to decrease performance to bolting a turbo/supercharger on to the motor which has been proven to increase performance by huge margins...

[cdrazic93]

For anything but WOT testing you need more than what any garage hobbyist has for equipment.

The (stock or aftermarket) manifold was designed (by ENIGNEERS) in a way to scavenge all the torque it could over the largest rpm band without losing top end power. This gives a set limit to the diameter of the piping used at the beginning of the runners, too small and top end is compromised, too large and there isn't enough exhaust velocity to keep the gasses moving at the proper rate (sweet spot).

This will cause the reverse of what you want to happen, exhaust gasses going backwards causing turbulence. Arbitrarily modifying the runners at the exhaust ports isn't going to change much in the way of seeing it on a dyno. Thus making a runner mod like this isnt going to yield anything but perceived notions of positively gained torque.

[OkieSnuffBox]

Originally Posted by KoolBRZ

This is all beside the point. According to the Harley dyno pulls, the inserts should have given me less torque and less horsepower. I just pulled a trailer piled 6 ft high with branches from a wind-blown tree I'm cleaning up, to the recyclers. I suppose I fantasized towing my trailer as well, since my car couldn't have enough torque to pull a trailer with these Harley (scam) inserts installed. So I'll just go on my merry way, blind in my belief of extra torque. Like the emperors new clothes I suppose. What do I need to do to prove it, do a tractor pull? Because dynos are only good for full throttle testing, not low RPM partial throttle testing.

Weight and aero drag of the trailer? Guess you've never heard of a steady state dyno?




Seriously, you're not helping your cause with your blatant lack of information and understanding. Give up the shovel and don't dig the hole any deeper.

[Shady195]

I dont need to be a tuner or competent in the understanding of fluid dynamics to know that this sounds ridiculous.

When one does something and wants to believe more than anything that it works. Well the mind can play funny tricks on you.

You cant expect anyone to take the word of your butt dyno, or the feeling of pulling a trailer as fact. Whos to say there wasnt less weight on a trailer than if you ever tried before etc etc..

Unless there is before and after dynos with multiple pulls on each end. Can't expect anyone to take this seriously.

Controlled testing with repeatable results is the only way to prove anything.

[Thorpedo]

Originally Posted by KoolBRZ

People who drive the car the way it's supposed to be live on a flat earth and drive a completely stock sports car holding up traffic granny shifting to get better mileage. I've learned to question authority, always, and this car isn't built right. The seats are too hard, the bolsters too tight, sway bars too thick, suspension compression damping too high, wheels too large and heavy, tires too narrow, stereo missing rear midrange/woofers, intake too restrictive, exhaust too restrictive, and I could go on. I love the car, and so I fix what i can, new suspension, new intake, and new exhaust have done wonders. I've got so much more torque now that I can't even touch the throttle in a corner without lighting up the "nanny" dashboard lights, cutting the throttle and buzzing the brakes. How hard do you have to push it before the "nannys" light up?

Dear God man... Where to start?

Suberman...? Is that you?

You seem to think that "the seats are too hard" is just a given. That noone would dare disagree as what you said is some sort of absolute. Are you 16 years old?

Everyone who is reading your words is shaking their head and questioning your butt dyno.

"I can't even touch the throttle in a corner without the lighting up the "nanny" dashboard lights" - Errrr... If there is a way to drive wrong, you are doing it.

I am really shocked that you think your butt dyno is so accurate that you actually got the ........... wait nevermind. I just realized I could go on pointing out your closed minded idiocy forever and you wouldn't even get it.

You know what? You're right. The car isn't built "right". Please sell it and get off the board.

[phrosty]

Can't help feeling there would be some form of torque-optimized header out by now if this actually did anything, but I look forward to seeing your before/after dynos.