Sprint Booster for the 2015 Genesis 5.0

[carguy75]

Today, I noticed that the engine/transmission seems to respond better with Sprint Booster set to Race level 1. The Race level 9 setting seems to be too aggressive especially in the Genesis Sport mode which just gives too much throttle with small pedal input, which is difficult to moderate the gas pedal for a good launch. ECO mode is more controllable in Race level 9, but the throttle still opens to full with just a tap of the gas pedal as well. Race level 9 is just too aggressive for proper driving; fun but not very controllable for off-the-line launches or moderating the pedal input around curves.

So far having the Sprint Booster set to Race level 1 still opens the throttle quicker, but in a more 1:1 ratio which the Genesis transmission seems to work better with. The pedal response is great without being too jerky since having full throttle with just tap of the gas pedal is just too much to be honest, which triggers the stability control if you are taking any turns due the system thinking that you are flooring the gas around the curve and cut the power.

The present setting is more like a normal driving sport sedan; not a car that has the throttle setting abnormally sensitive to the point the tires spin with just a tap of the gas pedal or the the stability system keep jumping in.

I will do some testing tonight to see what 0-60 numbers I get with the new setting. So far the car moved fairly quick and effortless, even though I had to press the gas pedal a bit farther to hit full throttle.

 

[MoonDoggy-X]

I actually removed my sprint booster. The car started throwing speed sensor and chassis codes. This disrupted everything from the tire pressure sensors, to the steering wheel, and everything in between. The dash lit up like a christmas tree. Anyone else have that problem?

 

[MG8]

I actually removed my sprint booster. The car started throwing speed sensor and chassis codes. This disrupted everything from the tire pressure sensors, to the steering wheel, and everything in between. The dash lit up like a christmas tree. Anyone else have that problem?

sounds like your issue is deeper than you think.

 

[MoonDoggy-X]

sounds like your issue is deeper than you think.

I didn't initially point the finger at the sprint booster. Almost every light on the dash was on for about a month while i tried to trouble shoot the codes. Finally just decided to take it to the dealer, so i took off the sprint booster, of course. Drove for a lil bit, and the lights cleared up. A few days later, the check engine light was gone. A few lights came back over course of a week, but quickly cleared again. So far, i'm about 3 week code free.

 

[carguy75]

I actually removed my sprint booster. The car started throwing speed sensor and chassis codes. This disrupted everything from the tire pressure sensors, to the steering wheel, and everything in between. The dash lit up like a christmas tree. Anyone else have that problem?

No, and my Sprint Booster has been installed and used daily for over a year. I even swapped to metal 2017+ sport pedals and the system still works as it did with the OEM gas pedal assembly.

 

[carguy75]

Tonight, my best 0-60 time is still 4.8 seconds in ECO mode with the Sprint Booster even set to Race 1 with the traction control off. The rear tires still break loose in Sport mode with the Sprint Booster set to Race level 1 and the traction control turned off, which gave a me a time of 4.9 seconds after wheel spin. Sound good though.

So my guess is that my best 0-60 time for this car will be 4.8 seconds limited by a lack of traction. Still a respectable time for a large sedan with street tires on public roads. I may get a better time on a gripper drag track while torque-braking the engine, but so far only 4.8 seconds from just mashing the gas pedal from a stand still.

However, the temperature was about 63F so the tire performance may improve as it get warmer. I will wait until the weather is about 80F and test again.

 

[MG8]

Tonight, my best 0-60 time is still 4.8 seconds in ECO mode with the Sprint Booster even set to Race 1 with the traction control off. The rear tires still break loose in Sport mode with the Sprint Booster set to Race level 1 and the traction control turned off, which gave a me a time of 4.9 seconds after wheel spin. Sound good though.

So my guess is that my best 0-60 time for this car will be 4.8 seconds limited by a lack of traction. Still a respectable time for a large sedan with street tires on public roads. I may get a better time on a gripper drag track while torque-braking the engine, but so far only 4.8 seconds from just mashing the gas pedal from a stand still.

However, the temperature was about 63F so the tire performance may improve as it get warmer. I will wait until the weather is about 80F and test again.

nice thats def an improvement over stock for the 2nd gen.

 

[carguy75]

nice thats def an improvement over stock for the 2nd gen.

True. The Sprint Booster does unleash the 5.0 true performance potential, however it highlights the 5.0 shortcomings as well. To clarify, the lack of rear traction and its aggressive stability control system.

The rear axle needs a mechanical locking differential to maintain traction on public streets when hard starting from a dead stop with the Sprint Booster or the tires will just spin until it gains traction, which defeats the purpose of installing the Sprint Booster. The stability control engages fairly often with the Sprint Booster if accelerating around a curve due to the Sprint Booster sending 100% throttle commands even with a small amount of pedal travel, so the system freaks out and reduce throttle with a kick to save my butt from an accident.

I will have play with the Sprint Booster settings and maybe even just not use Race setting so that I need to find a perfect setting in the Sport setting that provides better throttle response than stock, but not too aggressive as to give the Genesis worst everyday performance on the road.

So far the best straight line performance seems to be in ECO mode with the Sprint Booster set to Race level 9 due to less torque to the wheels for better traction, however the best overall performance at speed and around curves is with Sport mode with the Sprint Booster set to Race 1 since the 5.0 just accelerates like rocket to 100mph+ and the stability control does not kick in as much as with Race 9 due to a less aggressive pedal. However, it may be best to just reduce the Sprint Booster setting to Sport for open road driving for better pedal moderation. Race mode will be good at a drag track for pure straight line acceleration if proper traction is available. Usually drag strip tracks are prepared to be cleaner and grippier than the public streets which are full of loose rocks and gravel so less wheel spin.

 

[MoonDoggy-X]

Funny thing is, the car is actually faster in the streets than the strip. The ability for the wheels to slip a little allow the car to get pushed close to the torque limit without it killing power. The sticky track surface doesnt allow the wheels to spin. When too much power is applied, the car completely kills the power. Feel like the car stalls, really embarrassingly. So, youi REALLY have to be careful not to give the car roo much power when launching on prepped surfaces like that. Really effects you E.T.s...

 

[carguy75]

Funny thing is, the car is actually faster in the streets than the strip. The ability for the wheels to slip a little allow the car to get pushed close to the torque limit without it killing power. The sticky track surface doesnt allow the wheels to spin. When too much power is applied, the car completely kills the power. Feel like the car stalls, really embarrassingly. So, youi REALLY have to be careful not to give the car roo much power when launching on prepped surfaces like that. Really effects you E.T.s...

Depends on the car I guess. Some cars with a lot of torque seem to post better times at the track than on the street if launched properly due to hooking up at the start. It is all about traction, and I bet the Genesis will do better on a prepped track as opposed to spinning it tires on a public street. However, if someone could get a good launch on the street than you may be right due to having less tire resistance for the complete run.

So far I have not found a perfect launching technique on the street with the Sprint Booster that do not spin the tires before moving. If I keep the traction control turned on it kills the power at launch, and if I turn the traction control off the wheels spin. Having too much wheel slippage is not good for a good 0-60 time as well as having too much traction like you mention.

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[MoonDoggy-X]

Depends on the car I guess. Some cars with a lot of torque seem to post better times at the track than on the street if launched properly due to hooking up at the start. It is all about traction, and I bet the Genesis will do better on a prepped track as opposed to spinning it tires on a public street. However, if someone could get a good launch on the street than you may be right due to having less tire resistance for the complete run.

So far I have not found a perfect launching technique on the street with the Sprint Booster that do not spin the tires before moving. If I keep the traction control turned on it kills the power at launch, and if I turn the traction control off the wheels spin. Having too much wheel slippage is not good for a good 0-60 time as well as having too much traction like you mention.

My post is from personal experience. I took my 2015 Genesis 5.0 Ultimate to the track last year. I'm far from a noob when it comes to launching at the track with 200+ passes in my previous car.

Here's my experience at the track im my 2015 5.0 Ultimate. I took it easy at first to learn the car. After a few passes, i felt comfortable enough to really go for a good time. I had what for a split second from like the perfect launch. I gave it partial throttle, to make sure the tires gripped, which they did. Once i realized i had traction, i smoothly but quickly pressed the pedal to the floor. I can't emphasize enough how fast the car felt in that moment. Then, all if a sudden, the car cut all power. I thought maybe i broke a powertrain component from launching too hard, but when i hit the gas, nothing happened at all. After a second or two, the car came back to life on its own. I hit that wall one more time so just stopped launching so hard.

In the street, if you launch too hard the wheels slip. At the track, with the wheels unable slip to release the pressure, it builds up in the power train. I'm guessing that the car cuts power as s built-in safety measures to prevent damage to the powertrain. Without this torque limit at launch, these would easily be high 12 second cars.

 

[carguy75]

My post is from personal experience. I took my 2015 Genesis 5.0 Ultimate to the track last year. I'm far from a noob when it comes to launching at the track with 200+ passes in my previous car.

Here's my experience at the track im my 2015 5.0 Ultimate. I took it easy at first to learn the car. After a few passes, i felt comfortable enough to really go for a good time. I had what for a split second from like the perfect launch. I gave it partial throttle, to make sure the tires gripped, which they did. Once i realized i had traction, i smoothly but quickly pressed the pedal to the floor. I can't emphasize enough how fast the car felt in that moment. Then, all if a sudden, the car cut all power. I thought maybe i broke a powertrain component from launching too hard, but when i hit the gas, nothing happened at all. After a second or two, the car came back to life on its own. I hit that wall one more time so just stopped launching so hard.

In the street, if you launch too hard the wheels slip. At the track, with the wheels unable slip to release the pressure, it builds up in the power train. I'm guessing that the car cuts power as s built-in safety measures to prevent damage to the powertrain. Without this torque limit at launch, these would easily be high 12 second cars.

I did have what you said happen to me on the street with the traction control and the stability control turned off(hold the traction control button for several seconds). I had the car in sport mode and the Sprint Booster set the highest Race level 9 setting. I gave it gas very hard from a stand still and then the tires broke loose and then the car just cut power completely for a second. After that the stability control system restarted on its own, but traction control remained off. The Genesis ECU does have some fail-safes built in for certain against dangerous joy riding.

I am assuming that the best time possible for my slightly modded 5.0 will be a realistic 4.6-4.8 second 0-60 time, even at the track or street with a great launch and the Sprint Booster throttle lag reduction assistance; which is still great for the large Genesis. Damn good car for the money.

 

[MoonDoggy-X]

After more research, my car may have some kind of underlying CAN bus communication issue. Still, i cant ignore the fact that the issues went away when i uninstalled the Sprint Booster, so i wont be reinstalling it.

In my experience and limited testing, the Sprint Booster does not add power or even improve times. However, i cant stress enough how much it improved the day to day driving experience(set to Sport 9) when i was stock. That alone, to me, was worth the price of admission.

Since installing the sprint booster i replaced the intake tubing, installed k&n filters, and replaced the entire exhaust after the primary cats. Now that i've removed the SB, the car is still no slouch, even in Eco mode. Obviously, it take a little more pedaling, but now that i can hear the exhaust its easier to gauge what the engine is doing in real time. Driveability has improved, and when i really get on it, she sings and moves like no other. These are truly GREAT cars.

If someone with a more stock-ish vehicle would be willing to really test the validity of the Sprint Booster and post the results on here, you can have mine for free. Shamefully, There's not a lot of aftermarket support for these cars, so if i can help further the cause, i'm more than happy to do so.

0-60 tests are nice, but like Carguy75 said, due to multiple factors, the car's max 0-60 time is limited. So maybe someone can time their 40-80mph or 60-100mph, see if the passing speeds have improved at all. Just food for thought.

 

[MG8]

yes, lets not be misinformed and get the wrong idea ,the sb does NOT increase HP but with that said it does what it says with improved acceleration. ive heard of guys shaving off ass much as .3 secs at track and some evo guys ive heard it help shave some time off at the auto x track.

 

[dareckibmw]

If someone with a more stock-ish vehicle would be willing to really test the validity of the Sprint Booster and post the results on here, you can have mine for free. Shamefully, There's not a lot of aftermarket support for these cars, so if i can help further the cause, i'm more than happy to do so.
0-60 tests are nice, but like Carguy75 said, due to multiple factors, the car's max 0-60 time is limited. So maybe someone can time their 40-80mph or 60-100mph, see if the passing speeds have improved at all. Just food for thought.

Alright......I'll pull the trigger and can test it on my g80 sport, we already know, that my best time is 4.42sec. I really wonder if sprint booster would let me launch faster w/o that stupid lag,

 

[Cali Gen]

Alright......I'll pull the trigger and can test it on my g80 sport, we already know, that my best time is 4.42sec. I really wonder if sprint booster would let me launch faster w/o that stupid lag,

Tits

 

[carguy75]

Alright......I'll pull the trigger and can test it on my g80 sport, we already know, that my best time is 4.42sec. I really wonder if sprint booster would let me launch faster w/o that stupid lag,

Man; with your HP/torque numbers your car should be an easy high 3 second car with a good launch. Plus, you have AWD which will aid in traction with a hard launch. The Sprint Booster should be the right mod you need to quickly build boost off the line and break the 4 second barrier or damn close.

 

[carguy75]

yes, lets not be misinformed and get the wrong idea ,the sb does NOT increase HP but with that said it does what it says with improved acceleration. ive heard of guys shaving off ass much as .3 secs at track and some evo guys ive heard it help shave some time off at the auto x track.

Correct. The Sprint Booster does not add power to the engine; it just reduces the stock drive-by wire throttle lag by letting the throttle fully open with just a tap of the gas pedal. However, it can also slow down your times if tires the cannot put the extra throttle output to the ground.

To clarify; the stock throttle setting is more of a gradual increase in output which is more controllable and does not propel the car abruptly even when the gas pedal floored. This feels like lag from a stand still until the car is at speed. The Sprint Booster sends a signal that opens the throttle much sooner than the stock system so the throttle is more responsive or even touchy. This means less time for the engine to reach full throttle from a standstill and better 0-60 times if the tires maintain traction, or slower times if the throttle is too much for the tires to handle and slip.

 

[MoonDoggy-X]

The sprint booster such cranked up(Race 9) provides so much immediate acceleration from a stop, it makes the car feel like the front wheels might come off the ground. Butt dyno approved

What i'm curious to know if it really does something we can't do with a heavy enough foot, and does that feeling of "immediate" acceleration really translate to "faster" acceleration.

 

[dareckibmw]

Yes, I'm AWD, I never spin, not to mention my Michelin SP4s grips like crazy and the pavement where I do my pulls, it's kind of harsh, no way I can lose traction on it, even when it's wet.