135i SBO e30 Dyno Run

[Lmaiuri]

[Zombie1]

Lets see some 1/4mile times ,60-100 pulls things gotta move

[ShocknAwe]

It's amazing what ethanol does for power on this platform with a tune that can adjust for it.

[Lmaiuri]

Originally Posted by ShocknAwe

It's amazing what ethanol does for power on this platform with a tune that can adjust for it.

Almost makes a pro-tune obsolete, as long as my hardware can keep up.

[Elsabor67]

Nice. What other mods have been done to the car?

[Lmaiuri]

Originally Posted by Elsabor67

Nice. What other mods have been done to the car?

jb4, downpipes, and intake.

[Stohlen]

Originally Posted by Lmaiuri

Almost makes a pro-tune obsolete, as long as my hardware can keep up.

I think you should get a protune and see how well it does after that. There is no such thing as an auto-tuning map. A pro-tune will always be significantly better.

[Lmaiuri]

Originally Posted by Stohlen

I think you should get a protune and see how well it does after that. There is no such thing as an auto-tuning map. A pro-tune will always be significantly better.

My car runs exceptionally strong with jb4, I'm not going to fuck with it for 10 more whp and pay around a grand for a pro-tune especially with how finnicky these ECU's are. They do not want to be messed with. Plus this was a dyno dynamics roller, I'd probably be around 425-430 whp on a dynojet. Just not worth it IMO cash wise or reliability wise.

[Stohlen]

Originally Posted by Lmaiuri

My car runs exceptionally strong with jb4, I'm not going to fuck with it for 10 more whp and pay around a grand for a pro-tune especially with how finnicky these ECU's are. They do not want to be messed with. Plus this was a dyno dynamics roller, I'd probably be around 425-430 whp on a dynojet. Just not worth it IMO cash wise or reliability wise.

You do realize that a pro-tune is much more reliable than a generic tune right? A protune is specific to the vehicle and its parts... the JB4 is a piggy back that is just generalized to all vehicles. Its not exactly safe, granted they down-tuned it to be safe, but its still not as reliable as a pro-tune would be.

[RnmEvo9]

Originally Posted by Lmaiuri

Almost makes a pro-tune obsolete, as long as my hardware can keep up.

Funny, take it to the strip and see if you can back those numbers up.

[Lmaiuri]

Your opinions are taken into consideration but to me it isn't worth the 700 for the Cobb and another 1000 for a pro tune. My specific vehicle adapted exceptionally well to the jb4, I don't see the need for a protune in my situation. My specific vehicle <3s jb4 and the auto tune map 5 is brilliant IMO. No timing pulls, no knock correction. I trust this tune on my machine until it shows me otherwise. And even then, I don't really know what "safe" means, all the maps are running high boost across the board and the hardware suffers. High boost alone attributes to hpfp strain and waste gate wear and injector wear and so on and so forth. Safe is relative when you're doubling boost.

[Elsabor67]

Originally Posted by Lmaiuri

jb4, downpipes, and intake.

WOW!!!! Are you on the G4 or G5 board? Right now i'm FBO + Meth and pulled down 416WHP/478WTQ on a Dynojet last September while on the G4 board. Since then, i've switched to the G5 board and done some other tweaking. Goal is 450 WHP.

Great numbers for just those 3 mods.

[Lmaiuri]

g5 board. Are you direct port meth for octane or just cooling? I run e30, too.

[Stan.mac]

Did anyone in here see the e90 post about the guy who blew his motor from running Meth/JB4? Elsa, you might want to do some logging and look at your AFR's when shifting.... JFYSA.

[JZWBMW]

I would have to agree, I tested the piggy back systems and made more power and did it with more safety for sure. Nothing like having all the ecu safety functions working in line with what power and pressures and timing the engine is actually making.

Here is my base test with piggy back vs my true ecu tune. The true ecu had less timing retard, made more power past 5k and ran safer as well.

The blue dyno plot, Run 1 is the true ecu tune.

JZW

[Lmaiuri]

That post is very hard to understand. Could you please iterate which colored lines are jb4, procede, and which versions you ran? You can check your "piggy-back" dyno curves against mine and come to find they are nothing like what you have going on in your readings. My dyno readings are smooth as can be with a nice steady climb to peak levels before drop off. No timing pull. No correction. Don't really know what is going on in your comparison graph. Kinda sketch to be honest, looks like a marketing tool to me on the surface. I'm not arguing that a pro-tune makes a car run like a swiss watch, I'm just stating that for my setup, everything is running pretty damn near perfect.


To be honest, the piggy back tune runs look like clutch slip.

[Stan.mac]

I'm not 100% sure on what's going on in that graph either; it seems kind of ambiguous. My whole post was to warn people of what has recently happened with another N54 driver. My personal experience with piggy-backs (w/ VQ platform) has led to 3 failed motors and 30K in burnt cash... That is THE ONLY reason I did not go with JB... A true reflash and custom tune (or having a standalone system)that utilizes OE engine sensors and capabilities will ALWAYS be better in the long run . All I'm saying is do some logging on the JB system and look at post shift AFR's, post them, then lest me know how safe you think your car is... It's not all about numbers on a dyno... I'm not hating, I'm just saying...

[Lmaiuri]

Originally Posted by 0110001

I'm not 100% sure on what's going on in that graph either; it seems kind of ambiguous. My whole post was to warn people of what has recently happened with another N54 driver. My personal experience with piggy-backs (w/ VQ platform) has led to 3 failed motors and 30K in burnt cash... That is THE ONLY reason I did not go with JB... A true reflash and custom tune (or having a standalone system)that utilizes OE engine sensors and capabilities will ALWAYS be better in the long run . All I'm saying is do some logging on the JB system and look at post shift AFR's, post them, then lest me know how safe you think your car is... It's not all about numbers on a dyno... I'm not hating, I'm just saying...

As in what, a lean spike? I'm probably running super rich to be honest with catless pipes and e30 mixture. I'll run some logs over the weekend, I've got a walnut blasting and plug change happening.

Are you on Bimmer Alliance?

[P7X]

Originally Posted by ShocknAwe

It's amazing what ethanol does for power on this platform with a tune that can adjust for it.

This ^^^

[Stan.mac]

Originally Posted by Lmaiuri

As in what, a lean spike? I'm probably running super rich to be honest with catless pipes and e30 mixture. I'll run some logs over the weekend, I've got a walnut blasting and plug change happening.

Are you on Bimmer Alliance?

I am, I'm Stan McKenzie...

[Stohlen]

Originally Posted by Lmaiuri

As in what, a lean spike? I'm probably running super rich to be honest with catless pipes and e30 mixture. I'll run some logs over the weekend, I've got a walnut blasting and plug change happening.

Are you on Bimmer Alliance?

Realistically you're probably running lean... when people are putting e85 in on a car thats not tuned for e85, they are essentially taking the safety net out of the tune by adding that e85. Your targets are still 12.whatever:1, but once the e85 is thrown in, your targets should really be lower. The stoichiometric fuel ratio of ethanol is 9:1, meaning if you're still shooting for 12.0:1, you're running lean and your car doesn't even know it.

[Lmaiuri]

Originally Posted by 0110001

I am, I'm Stan McKenzie...

hah well then I guess you know who I am judging by my user name and posts on BA.