Drag/Acceleration Kia Stinger 1/4 Mile Times

[STINGER]

A member here with the K&N did a temp test and found temperatures at the filter was damn near ambient. Not sure if the K&N heatshield is that much better than the BMS, but you shouldn't be seeing IATs that much higher over the stock box, MAYBE a degree or two when under throttle.

Sorry, I meant at a standstill the IAT buildup is much quicker. When driving it is almost the same, but I tried with the draggy multiple times when the intake temps were the same and the ET and trap didn't improve.

 

[brancky3]

I think the difference is temps while sitting (heat soak) and then draging vs temps under normal driving.

That's probably exactly it. But, heat soak is not exclusive to sitting as you can definitely still be heat soaked in normal driving / racing.

 

[Tonkabob]

JT intakes gave me .2 in 0-60 and blitz got the same with his Agency. Blitz put on intakes tested, took them off and tested again, then put them back on.

 

[STINGER]

JT intakes gave me .2 in 0-60 and blitz got the same with his Agency. Blitz put on intakes tested, took them off and tested again, then put them back on.

Hmm, makes me think I should probably get another intake. Will wait for the Wagner intercooler first before investing in another intake, maybe more information will be available to make a better decision at that time. Will leave the intakes on for the moment then.

 

[Kamauxx]

I think this is a testament to the improvements that can be made from having simple plastic heatshields between the filters and engine. Prior to reading the last few posts I really didn't think they did much to help.

 

[Blitz]

Intakes certainly help based on my testing. Going back to stock was an instant performance drop. It takes quite a few runs to see the full gains of intakes though, and resetting the ECU by pulling the battery or disconnecting the ecu for ~30 minutes quickens that up to just a few runs. All of the intake systems seem about the same once you get going, but heatsoak can be better with more closed systems and especially with VT snorkels. My IATs seem to normalize much faster with the VT. At a track though, I'm not sure they would do much if anything at all, since you're standing still for at least minutes before your run.

FYI I'm right around 12.1 atm with JB4 map2/SSR "downpipe"/AEM intake and 92 octane on a full tank. I think I've hit my ceiling though. Either weight needs to come off or temperature needs to go down to get faster, and on a track I reckon I would be a good bit slower because of heatsoak and the fact that AWD gains almost nothing from the traction.

Also, selling the exact intakes that showed a .2 drop in 0-60 for 300 shipped. The AEM don't seem to have any performance increase at all from the Agency, but I dig the look.

For Sale - Agency Power Intakes - 360 shipped

 

[Tonkabob]

That's probably exactly it. But, heat soak is not exclusive to sitting as you can definitely still be heat soaked in normal driving / racing.

Your intercooler certainly but not your intake. If you are moving at speed your intake temps will be a pretty consistent number above ambient temp.

 

[eflyguy]

I have found very little evidence of the IC suffering from "heat soak" in comparison to the rest of the system, which makes sense given the location. Specifically, just a few seconds of even moderate throttle will drop IAT, but it will bounce back up quickly when throttle is reduced.

The upper intake components seem to be holding heat but I don't think it's affecting IAT once you open the throttle (which is really all we care about?) - like blowing AC across a hot flat surface, there's little opportunity for that heat to transfer.

Conversely, driving sedately or in heavy traffic, IAT stays high, as there is so little airflow, it seems those components are in fact warming the air.

 

[Tonkabob]

I have found very little evidence of the IC suffering from "heat soak" in comparison to the rest of the system, which makes sense given the location. Specifically, just a few seconds of even moderate throttle will drop IAT, but it will bounce back up quickly when throttle is reduced.

The upper intake components seem to be holding heat but I don't think it's affecting IAT once you open the throttle (which is really all we care about?) - like blowing AC across a hot flat surface, there's little opportunity for that heat to transfer.

Conversely, driving sedately or in heavy traffic, IAT stays high, as there is so little airflow, it seems those components are in fact warming the air.

The IC certainly heat soaks but by turbo heat not engine bay heat. Do back to back 1/4 miles and your times will go up.

 

[brancky3]

The IC certainly heat soaks but by turbo heat not engine bay heat. Do back to back 1/4 miles and your times will go up.

I would rather see raw IAT numbers personally, not something that is so subjective like 1/4 mile times. I wonder if it would be beneficial to use an air to water intercooler for track use and fill the reservoir with ice water so that waiting in line really wouldn't impact you negatively

 

[Tonkabob]

I would rather see raw IAT numbers personally, not something that is so subjective like 1/4 mile times. I wonder if it would be beneficial to use an air to water intercooler for track use and fill the reservoir with ice water so that waiting in line really wouldn't impact you negatively

You can see it in a single 1/4 mile run too as the iat drops initially and goes back up towards the end of the run.

 

[eflyguy]

The IC certainly heat soaks but by turbo heat not engine bay heat. Do back to back 1/4 miles and your times will go up.

I will try that. I have a lot of "data" but it's not cut and dry, easy to graph. I just drove while monitoring IAT for many hours in many conditions. and "got a feel" for what's going on. I know that's not empirical, but back-to-back pulls are, and it will be very helpful to see what my planned change will do to improve that situation.

 

[Get Stung]

The IC certainly heat soaks but by turbo heat not engine bay heat. Do back to back 1/4 miles and your times will go up.

I've noticed that my first run is always my best. If I dont get it in the first I should just pack it up.
Because they do generally go up from there. I have a cool down loop at about 20mph but times generally go up a couple hundredths and they are always back to back runs.

 

[terrelltechsup]

For the peeps with heatsoak between runs. I use these: AirMover

 

[Terry@BMS]

BMS intake added 15-20whp and 2+mph in our testing.

 

[P4RTYH4RTY]

BMS intake added 15-20whp and 2+mph in our testing.

Do you recommend unplugging the battery or ecu to speed up the learning process after install?

 

[Terry@BMS]

Do you recommend unplugging the battery or ecu to speed up the learning process after install?

No there isn't much learning involved really and unplugging the battery does not reset the learned adaptions. With the intake installed required WGDC becomes less and the ECU learns that over the course of a couple of full throttle runs.

 

[P4RTYH4RTY]

No there isn't much learning involved really and unplugging the battery does not reset the learned adaptions. With the intake installed required WGDC becomes less and the ECU learns that over the course of a couple of full throttle runs.

Awesome, thank you.

It will be delivered tomorrow; can't wait!

Hows that BMS Intercooler coming along?!

 

[Tonkabob]

@robz32 here are the 1/4 mile times for the week. Only change is #2 11.9 to 11.87

Here are the top times as of February 22th, 2019.
1/4 mile time, speed, 1/8 mile time, speed, 60 foot time

Brancky3 full list of ¼ mile times
Kia Stinger 1/4 Mile Times

1. 11.78* @118.58, @Tonkabob, 7.63 @94.20, 1.85
GT2 AWD, Tork ECU tune, Ark catback, JT intake, Ultimate FMIC. 92 octane + lucas

2. 11.87* @ 118.29, @ScottyCole, 7.71 @93.25, 1.88
AWD, Lap3 Pro, K&N Intakes, UP HFC down/mid, Borla Catback, 93 octane + E85

3. 11.90* @118.20, @Get Stung, 7.72 @92.38, 1.85
AWD, JB4 Map5, Secondary CAT bypass, Borla catback, Injen intake 93 octane

4. 11.91* @120.73, @Terry@BMS, 7.82 @94.96, 2.03
GT RWD, JB4, BMS intake, Water/Methanol injection 50/50, Drag radials, wheels. 30% E85

5. 11.94 @ 118.11, @STINGER, 7.77 @ 92.99, 1.89
RWD, JB4 map 3, WMI, VT Snorkel, K&N Drop ins, High flow CAT, JunBL mid EVC cat back

6. 11.98 @118.96, @TorkMe, 7.84 @94.03, 1.95
GT RWD, Tork ECU tune, Tork intake, muffler delete, no cats, fmic. 92 Octane

7. 12.07 @ 116.73, @Crewdawg130, 7.85 @92.65, 1.90
GT2 RWD, JB4 map3, intake, Ultimate HFC primary and secondary, FMIC, Drag radials. 93 octane

8. 12.07* @ 113.98, Michael L., 7.89 @92.70, 1.95 (12.17 @ 116 slip)
AWD, Lap3 pro Map2, Injen Intake, no cats. 91 + E30

9. 12.13 @116.78, Jesse P / turbokits.com, 7.89@ 91.51, 1.87
AWD, Lap3 pro Map 3, Intake, FMIC, no cats, 93 octane.

10. 12.13* @116.6, @KLR STINGER
AWD, JB4 map2, Intakes, Velossa snorkels, Magnaflow Catback, JT FMIC, Lap3 primary dp, JunBl Mid (no cats), Magnaflow Catback, 94 octane e20


* dragy times, reality may vary.

 

[Terry@BMS]

Awesome, thank you.

It will be delivered tomorrow; can't wait!

Hows that BMS Intercooler coming along?!

No ETA but it's in production.