New JB4 Stinger Dyno Results!

[Metalmania82]

View attachment 27748

Excel junkie.

Is 96 octane the official safe limit?

 

[Pnbnationsbest]

YOU CAN DO IT!

If you hear bang and grinding you're doing it right

 

[Mr. Tech]

I'm curious to know what your JB4 says for 0-60 on your logs? Also, what is your location (I'm more interested in your altitude). I swear my JB4 0-60 reads slow, it should be in the 4's considering my 1/4 mile time. Either that or my 0-60 is legitimately slow and my car hauls ass in second gear or beyond lol. I can't get mine to show better than 5.125s yet.

I pulled a 4.65 0-60 on an on-ramp (down a ~2 degree slope). That was Map 2, Denso plugs at .022, no fuel wires. My best stock time down that ramp was around 4.8-4.9. I was going to do a Map 0 run this morning to get a better comparison for you, but the road was closed so I had to go a different route to work.

On a flat road, I'd get about 5 seconds to 60 when I was stock. Unfortunately, I haven't had the opportunity to test the JB4 on that same road yet, but I'd guess around 4.8. Honestly, I should just invest in a dragy, then I'll know for sure. That said, once I know, I'll probably never use the dragy again lol.

I'm in NH, about 200ft above sea level. So pretty optimum conditions. I think I saw a post a while back where you said you were thousands of feet above sea level. If that's accurate, then the 5.125 seems legitimate if you're just running Map 2 with new plugs and no other mods.

 

[JDM_Man]

I pulled a 4.65 0-60 on an on-ramp (down a ~2 degree slope). That was Map 2, Denso plugs at .022, no fuel wires. My best stock time down that ramp was around 4.8-4.9. I was going to do a Map 0 run this morning to get a better comparison for you, but the road was closed so I had to go a different route to work.

On a flat road, I'd get about 5 seconds to 60 when I was stock. Unfortunately, I haven't had the opportunity to test the JB4 on that same road yet, but I'd guess around 4.8. Honestly, I should just invest in a dragy, then I'll know for sure. That said, once I know, I'll probably never use the dragy again lol.

I'm in NH, about 200ft above sea level. So pretty optimum conditions. I think I saw a post a while back where you said you were thousands of feet above sea level. If that's accurate, then the 5.125 seems legitimate if you're just running Map 2 with new plugs and no other mods.

0-60 4.87 with just intakes and Ark catback with a 300+ pound driver lol.

 

[Shrikecorp]

Is 96 octane the official safe limit?

I'm actually not certain at all. Trying to strike the balance between POWAH! and whups....

 

[Mr. Tech]

0-60 4.87 with just intakes and Ark catback with a 300+ pound driver lol.

Wow, no tune? That's pretty good. I've read about people shaving up to .2 seconds with just intakes. That's next on my list. After that, the fuel wires (once Terry has the plug and play solution). Then I think I'll be done... scratch that... some lightweight, forged wheels would be good too. Then I'll really be done... unless someone can prove to me that a better downpipe can shave another .1 seconds or so haha.

 

[Revvdmedia]

I pulled a 4.65 0-60 on an on-ramp (down a ~2 degree slope). That was Map 2, Denso plugs at .022, no fuel wires. My best stock time down that ramp was around 4.8-4.9. I was going to do a Map 0 run this morning to get a better comparison for you, but the road was closed so I had to go a different route to work.

On a flat road, I'd get about 5 seconds to 60 when I was stock. Unfortunately, I haven't had the opportunity to test the JB4 on that same road yet, but I'd guess around 4.8. Honestly, I should just invest in a dragy, then I'll know for sure. That said, once I know, I'll probably never use the dragy again lol.

I'm in NH, about 200ft above sea level. So pretty optimum conditions. I think I saw a post a while back where you said you were thousands of feet above sea level. If that's accurate, then the 5.125 seems legitimate if you're just running Map 2 with new plugs and no other mods.

Yes I'm at about 2200ft. I'm mainly just looking for certain numbers just for my own mental health, not for any legitimate reason, the car isn't slow by any stretch. I just thought a 0-60 in the 5's should not pull a 13.19 in the 1/4, it should be slower than that. Basically all factors considered and looking at the times of others, my 0-60 should be somewhere in the 4's considering the 1/4 mile time and how these cars get moving. It's possibly my car doesn't launch quite as hard as others but still pulls hard once moving.

I'll have sub 5 0-60 once I plug in the fuel wires and especially if I add the cutouts (basically muffler delete), I'm sure.

 

[Mr. Tech]

Yes I'm at about 2200ft. I'm mainly just looking for certain numbers just for my own mental health, not for any legitimate reason, the car isn't slow by any stretch. I just thought a 0-60 in the 5's should not pull a 13.19 in the 1/4, it should be slower than that. Basically all factors considered and looking at the times of others, my 0-60 should be somewhere in the 4's considering the 1/4 mile time and how these cars get moving. It's possibly my car doesn't launch quite as hard as others but still pulls hard once moving.

I'll have sub 5 0-60 once I plug in the fuel wires and especially if I add the cutouts (basically muffler delete), I'm sure.

Yeah, I've noticed that mine doesn't pull hard on a launch either. I'll enable launch control, hold the gas till it hits just over 2k RPM, then dump the brake and it slowly rolls along for about a second until the turbos spool up and it takes off. Occasionally I get a good launch, but most of the time it's a nice slow roll at the start. You should see if there's a way to measure your 10-60 times. It's probably 3.5 seconds while your 0-10 is 1.5 haha.

 

[Revvdmedia]

Yeah, I've noticed that mine doesn't pull hard on a launch either. I'll enable launch control, hold the gas till it hits just over 2k RPM, then dump the brake and it slowly rolls along for about a second until the turbos spool up and it takes off. Occasionally I get a good launch, but most of the time it's a nice slow roll at the start. You should see if there's a way to measure your 10-60 times. It's probably 3.5 seconds while your 0-10 is 1.5 haha.

This is true. You can even see it in the logs, the ECU is holding back throttle until about 4200 rpm in first gear on mine, it's a slow ramp up. I also swear I feel like it is pulling throttle between gears but the logs don't show it. I see boost taper down which is normal and ign1 go down to 0 between gears which also looks to be normal, but I definitely feel hesitation between gears. Not sure if gear changes are holding me back a little.

 

[Mr. Tech]

This is true. You can even see it in the logs, the ECU is holding back throttle until about 4200 rpm in first gear on mine, it's a slow ramp up. I also swear I feel like it is pulling throttle between gears but the logs don't show it. I see boost taper down which is normal and ign1 go down to 0 between gears which also looks to be normal, but I definitely feel hesitation between gears. Not sure if gear changes are holding me back a little.

Interesting. I don't notice hesitation between gears, but I do see the ign1 drop to 0 between gears (normal), the boost taper (also normal based on how Map 1 and Map 2 work), and the slow ramp up on throttle (around 4200 RPM as well). I didn't actually notice that until you pointed it out though.

I do see throttle being pulled between 1st and 2nd on Map 2 almost every time though. Have you seen that in your logs?

 

[Terry@BMS]

Yeah, I've noticed that mine doesn't pull hard on a launch either. I'll enable launch control, hold the gas till it hits just over 2k RPM, then dump the brake and it slowly rolls along for about a second until the turbos spool up and it takes off. Occasionally I get a good launch, but most of the time it's a nice slow roll at the start. You should see if there's a way to measure your 10-60 times. It's probably 3.5 seconds while your 0-10 is 1.5 haha.

Launch mode sucks... Brake boosting with the Burger switch is MUCH better although it does require cutting a wire.

 

[Shrikecorp]

Launch mode sucks... Brake boosting with the Burger switch is MUCH better although it does require cutting a wire.

We need a wizard to come along and make it work without that physical cut. Just sayin'

 

[YOWStinger]

Ahem @Terry@BMS, I'm pretty sure that since there's already a wire down there for ODBII connector, you could just throw a bipolar transistor onto that brake line, and enable/disable depending on map or setting. Map 0 or 4, brake line enabled, all others disabled? Positive voltage it's disabled so that if it's disconnected the brake line maintains it's connection.

https://www.electronics-tutorials.ws/transistor/tran_1.html
What’s the Difference between PNP and NPN?

I dunno, throwing crap out there, but seems like it's doable.

 

[JDM_Man]

Yes I'm at about 2200ft. I'm mainly just looking for certain numbers just for my own mental health, not for any legitimate reason, the car isn't slow by any stretch. I just thought a 0-60 in the 5's should not pull a 13.19 in the 1/4, it should be slower than that. Basically all factors considered and looking at the times of others, my 0-60 should be somewhere in the 4's considering the 1/4 mile time and how these cars get moving. It's possibly my car doesn't launch quite as hard as others but still pulls hard once moving.

I'll have sub 5 0-60 once I plug in the fuel wires and especially if I add the cutouts (basically muffler delete), I'm sure.

Well I am running 13.27 with a 4.87 0-60 @330ft, defiantly seems like your 0-60 should be faster, your 1/4 mile makes sense with JB4 at your sea level.

 

[JDM_Man]

Launch mode sucks... Brake boosting with the Burger switch is MUCH better although it does require cutting a wire.

Didn't someone already break their transmission doing this lol....

 

[Revvdmedia]

Interesting. I don't notice hesitation between gears, but I do see the ign1 drop to 0 between gears (normal), the boost taper (also normal based on how Map 1 and Map 2 work), and the slow ramp up on throttle (around 4200 RPM as well). I didn't actually notice that until you pointed it out though.

I do see throttle being pulled between 1st and 2nd on Map 2 almost every time though. Have you seen that in your logs?

My throttle always stays flat between gears, I've never seen it dip like others have. It could be the low resolution of the logs that don't show it though.

 

[Mr. Tech]

Launch mode sucks... Brake boosting with the Burger switch is MUCH better although it does require cutting a wire.

Are you talking about the pedal tuner or something else? Then again, I've heard some horror stories of people breaking their flywheel, clutch, etc. while brake boosting on other vehicles. If this was a track car, I'd definitely look into it, but as a daily driver, I'll stick with my JB4 tune. It's amazing the difference with just Map 1 and no fuel wires or intake.

Also, I posted a couple questions to you on another thread. Not sure if you've seen it yet. Basically just questions about Boost vs Boost 2 and a question about what you meant by "adaption". Here's a quick link to the post.

 

[Mr. Tech]

My throttle always stays flat between gears, I've never seen it dip like others have. It could be the low resolution of the logs that don't show it though.

Interesting. How much boost are you typically pushing on Map 2? On a good pull, I'll get a pretty steady 16-17psi. Of course it dips toward redline before recovering after the shift, but that's programmed into the Map.

I'm also wondering if your elevation has anything to do with it.

 

[Revvdmedia]

My Map 2 would peak at 16, typically holds close to 15. ECU is commanding about 10 and JB4 is commanding the extra 5 to 4 (downward taper towards redline).

 

[Mr. Tech]

Huh, looks like I may be getting a bit more stock boost than you for some reason. During most pulls, I'm getting 11-12 psi commanded with an occasional spike to 12.9. I have no idea how the ECU determines how much boost to command, but I'm wondering if that has anything to do with your 0-60 times.

Maybe it's the elevation? Since you're considerably higher up, the turbos will need to work harder to give you 10 pounds of boost relative to sea level (at least I'm assuming they will). This is all just a complete guess, obviously haha.