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FLtrackdays

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Thank you for posting up your numbers. I had my JB4 for months but never installed it. I might get a custom tune soon for my 23.
@Jesse DaBears is great! I use mine in town and she feels like a total different car ? ? . He even asked me to do some more pulls for heat issues on track but it’s my off season. The guy understands and patient as hell. Bottom line, it’s worth it and easy with Jesse’s help.
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_Sp1ral0ut

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@Jesse DaBears is great! The guy understands and patient as hell. Bottom line, it’s worth it and easy with Jesse’s help.
This all day!

He didn't even roast me for sending him the same log after he asked for another one. (I didn't save it and thought I sent him a new one.)
 

D K

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It seems like breaking through 500whp is challenging with JB4 based on all the posts in this thread.

What is the bottleneck? DI fuel delivery? Turbo size?
 

Awales74

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It seems like breaking through 500whp is challenging with JB4 based on all the posts in this thread.

What is the bottleneck? DI fuel delivery? Turbo size?
The general theme in all of these types of threads is that the car is fuel limited after you eliminate or reduce the cat. The modest approaches use either E blends or Meth. The aggressive guys with eyes north of 700hp will go with more fuel. Without one of these solutions your car will be considered a "low horsepower" car (sub 500) :(
 

EddieNel

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Sorry if this question had already been answered. So ho much power can the stock turbo make if you add a down pipe and port injection? Everyone is saying the biggest limiting factor in power is fueling. So what I’m seeing is add all the necessary components port injection and fuel pump then grow from there.
 

bushido

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Sorry if this question had already been answered. So ho much power can the stock turbo make if you add a down pipe and port injection? Everyone is saying the biggest limiting factor in power is fueling. So what I’m seeing is add all the necessary components port injection and fuel pump then grow from there.
stock turbo max power with DP & PI 550-560whp

biggest limiting factor is stock transmission, at 600-650wtq. with said mods, you will be in this range

PI and LPFP to run full E

this is a JB4 thread, though.. these circumstances occur in BM3 and ECUTEK platforms

did i answer your q's?
 

EddieNel

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stock turbo max power with DP & PI 550-560whp

biggest limiting factor is stock transmission, at 600-650wtq. with said mods, you will be in this range

PI and LPFP to run full E

this is a JB4 thread, though.. these circumstances occur in BM3 and ECUTEK platforms

did i answer your q's?
You nailed it! Thank you so much. Sorry for the hijack.
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