Emira JB4 Tuning Now Available for I4 & V6 Cars!
- Thread starter GRP
- Start date
Common paint stripper you can find at hardware stores. Couldn't speak to its quality for such purposes though >_>
NorCalEmira
Emira Fan
Nice gains! I also live in the Bay Area and would like to schedule a dyno session now that I have installed the JB4. Could you share where you had this done?
+57whp in map 1
It's interesting that your charts are almost the opposite of mine. All the gains on mine tend to be below 4k rpm, while all yours really start to show above 4k. Do you have the 3rd cat delete?
Am I reading this correctly that you picked up less than 20ftlbs peak tq?
Brokenblinker
Well-known member
We don't really know for sure because the dynos are taken on different days months apart with different ambient conditions. This is not meant to be a knock, I'm very thankful that he went ahead and got dynos. I'm just saying you can't compare them to each other
Didn’t he record before and after plots? Or were they on different days?
Brokenblinker
Well-known member
His before and after are from different days with different conditions
Got it. Thanks.
luciddaydream
Emira Fanatic
Does anybody know if there are any more ways to get some extra juice out of the car? Will the JB4 continue to improve? Will they make updates on it ? Thanks
Headers, supercharger pulley, 3.7 L sleeves and pistons, and or more RPMs.
Also, someone called jokerz apparently does porting for the supercharger.
Last but not least the GT4 car uses this engine with a bigger supercharger from Harrop the tvs 1900.
People smarter than me on here might be able to comment on using E 85.
I know for twin turbo 911’s its epic
@VF Tuner is working on a few things that many of us have high hopes for.
JB4 will only make small changes to the car on the maps provided.
Granted, if you found a way to do "more" JB4 will continue adding more power potentially, but at some point you may hit limits of what is either possible or safe on a stock ECU+piggy back.
You can keep playing with the fuel types or methanol injection with JB4 and make more power, but at some point you'll hit another bottleneck even with better fuel.
Ultimately a smaller supercharger pulley is probably the next easiest thing to reach for more power. As long as the injectors don't run out of fuel you can relatively keep adding more psi with smaller pulleys. As NJ is inducting you'll eventually hit a point where you are outside the super chargers efficiency and stepping to a larger displacement supercharger might be best.
By this point you are thousands of dollars in and just waiting to find the next "weak point". Which, by most accounts won't be the Toyota motor for a while.
Granted, if you found a way to do "more" JB4 will continue adding more power potentially, but at some point you may hit limits of what is either possible or safe on a stock ECU+piggy back.
You can keep playing with the fuel types or methanol injection with JB4 and make more power, but at some point you'll hit another bottleneck even with better fuel.
Ultimately a smaller supercharger pulley is probably the next easiest thing to reach for more power. As long as the injectors don't run out of fuel you can relatively keep adding more psi with smaller pulleys. As NJ is inducting you'll eventually hit a point where you are outside the super chargers efficiency and stepping to a larger displacement supercharger might be best.
By this point you are thousands of dollars in and just waiting to find the next "weak point". Which, by most accounts won't be the Toyota motor for a while.
luciddaydream
Emira Fanatic
Ok thanks. Do you know of any pullys I could pick up? Are there any on the market?
Folks, this thread is about the JB4 from Burger Tuning. If we can keep the topic focused that would be a great help to those who are trying to follow this particular product in detail. I'm also to blame! But let's all pivot if we can.
Feel free to make additional threads at will to discuss the big picture of tuning, engine build options, and other details! It's a great discussion and we should continue it as much in the open as possible.
Feel free to make additional threads at will to discuss the big picture of tuning, engine build options, and other details! It's a great discussion and we should continue it as much in the open as possible.
I moved a bunch of posts to a new thread here: https://www.emiraforum.com/threads/jubu-and-other-topics-a-combo-thread.6800/
I will continue to move JUBU and other related (but off-topic here) content into that thread as it arises. Great to have the discussion! Just want to keep the topics organized.
Thanks all!
I will continue to move JUBU and other related (but off-topic here) content into that thread as it arises. Great to have the discussion! Just want to keep the topics organized.
Thanks all!
A good point, and appreciate the humility too.
Yes. This was with Map 1 and actual 91 octane gas. It looks like some or most of the people posting dynos of Map 1 still have 93 in the tank, which would allow Map 1 to operate right to its limit due to the extra headroom against knocking the 93 would have. I don't have 93 available so I can't do a Map 1 - Map 2 comparison.
My goal for dynos is to see what a new change has made compared to the last change, which could be months ago. I'm looking for a trend and what type of change a new mod is making, if any. I'm not so much concerned about the numbers for any particular day, as much as seeing what's happening through the rpm range. Where is it making a difference, and how consistent is it in other words.
The JB4 dyno I got showed what I felt when switching to Map 1; a definite increase in torque at the lower rpms. What it also shows, is that through multiple dyno pulls spread out over a year with several different mods, once the rpms get close to 5k all the lines pretty much join together. That tells me the exhaust is the bottleneck. I believe all the people showing bigger gains have deleted their 3rd cat which would reduce back pressure and allow for more performance. Most people also seem to be using Dynojets while I'm on a hub dyno which are known to be more conservative.
The delete pipe I ordered from Aerie is scheduled to be delivered day after tomorrow, so hopefully by next week I'll have it installed, along with the CCB brakes and sound dampening on the wheel well liners. Right now we've got a 100+ heat spell going on so my time in the garage is going to be limited to a few very early morning hours before it heats up. If the liners don't give me any trouble, I'm hoping to get one wheel/brake/wheel well done a day.
Oh, that’s only map1. Got it. I was confused.
Thank you for clarifying.
It’s crazy they don’t sell 93 octane everywhere. Here in NJ we’re swimming in it
Yeah I live in a bizarre state that has 92 as the premium option. Not California 91, and not the 93 most the rest of the country gets. Very confusing as to the choices being made there.
Octane booster to get me to 93 is pretty simple though. I actually was looking at 55 gallon drum barrels (out of curiosity). You can get stuff like unleaded high-octane, or I found a E98 Ethanol (nearly pure ethanol) which conservatively has 107 Octane rating, i'd only need like 1 gallon for every full tank to get 93+ octane. at that rate a 55 Gallon barrel would last quite a while. (and I'd still be well within a conservative < 20% ethanol blend)
Octane booster to get me to 93 is pretty simple though. I actually was looking at 55 gallon drum barrels (out of curiosity). You can get stuff like unleaded high-octane, or I found a E98 Ethanol (nearly pure ethanol) which conservatively has 107 Octane rating, i'd only need like 1 gallon for every full tank to get 93+ octane. at that rate a 55 Gallon barrel would last quite a while. (and I'd still be well within a conservative < 20% ethanol blend)
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