Lets talk tuning, piggy back vs ECU flash.

[JP's_Stinger]

Incoming 5 month old tune comment

iIt's 6 months old, now! PLEASE, be precise!

Oh! Also how wrong every single person around here is except him, because...you know, HE SAID SO. He must be angry that Trump stole his favorite comment : "WRONG!". Should've copyrighted it...

 

[brancky3]

They are both heavily moded, Terrys just has mods that most of us arn't running and arn't as obvious in improving the 1/4 mile times such as e30, DRs, wheels and of course methanol. Nothing wrong with this its good to be fast.

There's no way anybody would ever consider Terry's car as 'heavily modded' as he literally still has stock exhaust. Yes, his mods cost money and yes, his mods make his car faster. But chopping exhaust off and removing cats is way more "modding" than wheels, tires, and fuel. Not to mention how disgusting it smells and how obnoxiously loud it must be. Definitely not for someone who daily drives their Stinger.

 

[Tonkabob]

There's no way anybody would ever consider Terry's car as 'heavily modded' as he literally still has stock exhaust. Yes, his mods cost money and yes, his mods make his car faster. But chopping exhaust off and removing cats is way more "modding" than wheels, tires, and fuel. Not to mention how disgusting it smells and how obnoxiously loud it must be. Definitely not for someone who daily drives their Stinger.

They are both heavily moded like i said. There is no way i would buy and handle methanol all the time and strap that little fire ball right against the rear bumper on my daily driver either.
Nor do i want to remove my primary cat.
They are both moded beyond my interests. I'm doing 19 inch wheels cause they look cool primarily and secondarily will knock off .06- .08 or so putting me in the 11.8s before a tune update or secondary dp. 19s not as light as the 18s but look better.
Cat backs are mostly worthless hp wise but dps are big hitters.

 

[KLR STINGER]

Catless isn't as bad as you would think. On a modern turbo car, smell isn't too bad. Now the 2 g's I had to spend doing custom exhaust for it to sound good was a different story, but I think having done the R&D, $500 on a custom mid pipe would solve most of that problem.

In any event, I agree that Terry's car is hardly highly modded. Meth and intakes, along with a DR is quite lightly modded compared to me for example.

 

[Kamauxx]

I'd like to revisit Tork's comment that he knows of turbos being destroyed by JB4s. As a concerned member of the Stinger community, I'm sure you'd like to give us more insight into these issues, right @TorkMe or @Sales@Tork or whichever of you made that claim? Making the claim and then back peddling by saying it isn't your business makes you look like a teenage girl, spreading gossip.

In their current state your posts essentially amount to "psst, hey, I've got a secret to tell you...ahh...never mind." Seriously, shit or get off the pot.

 

[brancky3]

Catless isn't as bad as you would think. On a modern turbo car, smell isn't too bad. Now the 2 g's I had to spend doing custom exhaust for it to sound good was a different story, but I think having done the R&D, $500 on a custom mid pipe would solve most of that problem.

Do you have any videos of your exhaust? I took the cats off the last couple cars I had but kept stock exhaust - wasn't really bad at all that way.
2014 Nissan 370z
2007 VW GTI

The smell was pretty bad on my V6 GTI (aftermarket catback) and on my Audi A4 (basically straight through 3" custom exhaust)

 

[Helo58]

With respect to the wheels on the BMS car, do we know it helps performance or are we guessing? Wheel weight savings only makes a difference if the weight savings is at a maximum distance from the center of the wheel. A perfect example of this is running a lighter tire or a smaller diameter wheel. Lighter wheels help but only in as much as they are additionally lighter at the bead and not the hub. It is not as simple as saying it is 8lbs lighter. It really makes a difference where the 8lb loss comes from. If his wheels shaved 8lbs at the hub and he put on a 4lb heavier tire, the 4lb tire is going to make more of a negative difference than the lighter wheel will make a positive difference.

 

[sting me]

For someone who doesnt want to be involved in Warranty Fraud you sure do mention about taking off mods everytime someone wants to go in quite a bit.

Just a little anecdote...
Having mods that are easy to remove are extremely beneficial when you take your car in for any service. For example, you don't want to have your high boost tune on when the dealer's lube tech wants to take the "fastest Stinger he's ever seen" out to lunch on a "test drive". It definitely doesn't pertain to having warranty repairs done to items prematurely worn or damaged by the modifications.
Just my $0.02!

 

[Terry@BMS]

I posted previously I think the wheels are worth around 1mph of trap speed based on my testing with and without, and less than .1ths of ET as it's traction limited and most of the gain is where the rate of acceleration is the highest at the start of a run, where it's spinning the tires right now. Definitely a mod compared to my factory 19s. Would be less of a mod on vehicle equipped with factory 18s.

 

[Helo58]

I posted previously I think the wheels are worth around 1mph of trap speed based on my testing with and without, and less than .1ths of ET as it's traction limited and most of the gain is where the rate of acceleration is the highest at the start of a run, where it's spinning the tires right now. Definitely a mod compared to my factory 19s. Would be less of a mod on vehicle equipped with factory 18s.

You may want to do more testing (not being as wise guy, really). Just looked up the weights... A Nitto 555 285/40-18 is 29.3lb while the 19" Stock Stinger Michelin is 24lb. Your tire is 5.3lb heavier at the maximum radius making it the highest influence on torque at the hub. If you are good at derivative calculus or have some handy software , you could get a more definitive answer. I have always thought that having a "wheel only" dyno to measure the power to spin various mounted tires/wheels up to 60mph would be a great asset and fairly easy to create. In fact it may already exist. Try a lighter tire AND a lighter wheel. Then people would hate that additional tenth you "found."

Edit: Just found this to illustrate the point. (The objects with all of the mass at the maximum radius are the slowest to accelerate.) File:Rolling Racers - Moment of inertia.gif - Wikimedia Commons

 

[Tonkabob]

With respect to the wheels on the BMS car, do we know it helps performance or are we guessing? Wheel weight savings only makes a difference if the weight savings is at a maximum distance from the center of the wheel. A perfect example of this is running a lighter tire or a smaller diameter wheel. Lighter wheels help but only in as much as they are additionally lighter at the bead and not the hub. It is not as simple as saying it is 8lbs lighter. It really makes a difference where the 8lb loss comes from. If his wheels shaved 8lbs at the hub and he put on a 4lb heavier tire, the 4lb tire is going to make more of a negative difference than the lighter wheel will make a positive difference.

He is saving 60 lbs in just static weight. Rotational weight is 1.6 to 2.0x. So at the lower est. Its like shaving off 100lbs.

There is no hating. Its a good idea. Just should ack the benefits as Terry has.

 

[KLR STINGER]

Do you have any videos of your exhaust? I took the cats off the last couple cars I had but kept stock exhaust - wasn't really bad at all that way.
2014 Nissan 370z
2007 VW GTI

The smell was pretty bad on my V6 GTI (aftermarket catback) and on my Audi A4 (basically straight through 3" custom exhaust)

Hot Rod Scotts Exhaust on Instagram: “#varexexhaust custom #exhaust on this #kiastinger pretty Crazy open the #madness or enter sleeper mode!!! #weapon all carbon’d up with the…”

 

[Helo58]

He is saving 60 lbs in just static weight. Rotational weight is 1.6 to 2.0x. So at the lower est. Its like shaving off 100lbs.

There is no hating. Its a good idea. Just should ack the benefits as Terry has.

My point is that he is not saving 60 lb at the maximum radius. Where the weight is saved makes a difference. Another way of saying it, is where the force is applied makes a difference. This principle is why a "breaker bar" works better than a short socket wrench at powering off difficult nuts. You are applying the same force (your effort) at a greater distance from the nut with a breaker bar than you are a short wrench. I don't have a dog in the fight, so I have no problem saying that Terry (or you) could be wrong on this.

If the location of mass in items with the same total mass and diameter doesn't make a difference, then it really makes the laws of physics worthless doesn't it? This animation should shed some light on it. I posted it above but it was an edit and may have been passed over. Sorry in advance for the duplication. File:Rolling Racers - Moment of inertia.gif - Wikimedia Commons

 

[brancky3]

Hot Rod Scotts Exhaust on Instagram: “#varexexhaust custom #exhaust on this #kiastinger pretty Crazy open the #madness or enter sleeper mode!!! #weapon all carbon’d up with the…”

That video is hilarious! But the car actually does sound really good. I'm impressed

 

[Helo58]

Also, I understand that his "new" wheel are lighter by 60lbs, but his new tires are heavier by 21+ lbs at the maximum radius. This is a net weight savings of 40 lb, (6 gallons of gas). There is no 1.6x to 2.0x benefit in his case because his tires got HEAVIER not lighter. With heavier tires he has the possibility of negating any weight savings in the wheel because of the location of the rotating mass of the tires. At best, it is a wash. At worst he hurt performance.

Of course this doesn't take into consideration any tractional benefit of the tires, but that is also balanced out by increased rolling resistance through the quarter mile. Again, not a lot of juice for the squeeze...

 

[KLR STINGER]

That video is hilarious! But the car actually does sound really good. I'm impressed

My exhaust guys ig is hilarious. You should follow. He's quite a character. But the work and attention to detail is top notch. With the center muffler breaking in now, even valves closed has a great sound, but not much louder than stock. Valves open sounds like an Alfa or maser v6

 

[Tonkabob]

Also, I understand that his "new" wheel are lighter by 60lbs, but his new tires are heavier by 21+ lbs at the maximum radius. This is a net weight savings of 40 lb, (6 gallons of gas). There is no 1.6x to 2.0x benefit in his case because his tires got HEAVIER not lighter. With heavier tires he has the possibility of negating any weight savings in the wheel because of the location of the rotating mass of the tires. At best, it is a wash. At worst he hurt performance.

Of course this doesn't take into consideration any tractional benefit of the tires, but that is also balanced out by increased rolling resistance through the quarter mile. Again, not a lot of juice for the squeeze...

Wheels 16x1.6= 25.6 per wheel savings x4 = 102.6 lb savings
Rear Drs 4 x 2= 8 times 2 DRs = 16 lbs added.
He still lost 87 lbs assuming the front tires are the same weight probaably lighter
Rule of thumb is 1.6x for the wheel and 2x for the tire.

 

[Blitz]

Hot Rod Scotts Exhaust on Instagram: “#varexexhaust custom #exhaust on this #kiastinger pretty Crazy open the #madness or enter sleeper mode!!! #weapon all carbon’d up with the…”

This guy is f*cking awesome. How are the performance gains on them? That video is worth the money alone.

 

[Helo58]

Wheels 16x1.6= 25.6 per wheel savings x4 = 102.6 lb savings
Rear Drs 4 x 2= 8 times 2 DRs = 16 lbs added.
He still lost 87 lbs assuming the front tires are the same weight probaably lighter
Rule of thumb is 1.6x for the wheel and 2x for the tire.

Just to be clear, did he change all 4 wheel and tires, 2 wheels and tires, or some combination in between? I was under the impression it was new wheels and tires all around.

 

[brancky3]

Just to be clear, did he change all 4 wheel and tires, 2 wheels and tires, or some combination in between? I was under the impression it was new wheels and tires all around.

New wheels and tires all around. Fronts aren't driven by the transmission so there is no calculations for rotational mass when speaking of acceleration (cornering should be improved theoretically). So 4 lbs gained on rear tires but 16 lbs or so lost in the wheel.... I understand what you're saying about where the weight is I just don't know how that translates to his performance in these runs. I really can't imagine it's much.