JB4 + BEF (dyno results)

absaifan

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Hey guys, just got the car off the dyno, I'm honestly impressed more and more with the JB4 capability and ease of use.

Tuned the JB4 with a BEF (thanks to Terry @ Burger Motorsports) for his non stop support and guidance.

Car is stock except a Titan Motorsports downpipe and HKS filter element running 93 Octane pump gas.

Peak power @ 453 WHP and 522 WTQ on a dyno jet, running 21PSI.
Intake Temps are soaring at 127 - 140 Fahrenheit (hello summer).

The other two runs are made on map 4 (18psi) and then map 0 (16 psi) respectively, I see more power under the curve with lower boost, suggesting the stock turbo efficiency drops around 20psi.

Plans for the next dyno run will be after the install of Pure800 and WMI and Exhaust.

IMG_20200622_225133.jpg


IMG_20200622_204435.jpg
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65sohc

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I've asked this in a couple other threads and never got a response. Where are you measuring boost, before the intercooler or after? My MHD datalogging function records a reading for both and post intercooler is always 4-5 psi lower than pre.
 
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absaifan

absaifan

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I've asked this in a couple other threads and never got a response. Where are you measuring boost, before the intercooler or after? My MHD datalogging function records a reading for both and post intercooler is always 4-5 psi lower than pre.
Not sure where the JB4 pulls the boost value but I'm almost certain it's befor ethe intercooler I.e. Before the throttle body.
 

Gearbangin

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Tuned the JB4 with a BEF
Whats the "BEF"

Awesome I have the JB4 also running MAP3 currently. I have the EWG connector and Fuel It sensor waiting to go on.
 

kona61

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Whats the "BEF"

Awesome I have the JB4 also running MAP3 currently. I have the EWG connector and Fuel It sensor waiting to go on.
Back end flash. It's a tune MHD does in conjunction with Burger. It allows the JB4 more direct control without needing to circumvent stock ECU limits and whatnot.
 

dethred

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Sorry for the thread resurrection, but doesn't map 0 mean no tune? How did you get 422whp with no additional boost? Or did the BEF get you there and the JB4 Map-4 got you up to 450?
 

Sigg

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Very interesting you can certainly see the limitations of the stock twin-scroll at the end of the rpm range.
Regardless, very very impressive numbers.
 

superd6199

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Hey guys, just got the car off the dyno, I'm honestly impressed more and more with the JB4 capability and ease of use.

Tuned the JB4 with a BEF (thanks to Terry @ Burger Motorsports) for his non stop support and guidance.

Car is stock except a Titan Motorsports downpipe and HKS filter element running 93 Octane pump gas.

Peak power @ 453 WHP and 522 WTQ on a dyno jet, running 21PSI.
Intake Temps are soaring at 127 - 140 Fahrenheit (hello summer).

The other two runs are made on map 4 (18psi) and then map 0 (16 psi) respectively, I see more power under the curve with lower boost, suggesting the stock turbo efficiency drops around 20psi.

Plans for the next dyno run will be after the install of Pure800 and WMI and Exhaust.

IMG_20200622_225133.jpg


IMG_20200622_204435.jpg
Did you have to buy the MHD Super License in order to do the BEF?
 

whozaka

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New numbers on the Pure800 Turbo and JB4.
631whp / 769Tq

Very impressive numbers. Do we know the limits on our Piston heads and rods along with the limits of our trans?

I used to have a Scatpack charger making 900 wheel and my 8HP Trans which is the same we use, gave out on me.
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