[aaddam2]

I remember when I was looking for Dyno data on JBD the one I received the most hits for was the one provided by JBD and only HP as a function of speed. and I have BOTH power/torque as a function of speed and RPM

I would like to add these for references though I posted on FB page already for other people considering JBD and can do an easy search. I plan on delete & tune soon so this dyno for me was to get a before snap shot.

1st pull was in 3rd gear (super short)
2nd & 3rd pulls were 4th gear

3rd pull: 290whp / 426wtq

I wont post video here because 1 it is too quiet and 2 once you seen one dyno video you seen em all.








PS: this was at an 86 dyno day so all low hp and tq numbers, but at a shop that was filled with 1000+hp AMG's

[GodStang]

So you gained 10rwhp/58rwtq at 90%? My JBD comes today.

[aaddam2]

Originally Posted by GodStang

So you gained 10rwhp/58rwtq at 90%? My JBD comes today.

Stock (from BPC dyno graph) 237hp / 396 ftlb @wheels

(JR's dyno is slightly different stock readings)

So the gain would be: +53whp / +30wtq (compared to BPC baseline stock dyno)

dont think my dyno will show here, but i believe the power/torque comes in with a steeper slope in the low rpm range with JBD vs stock, thats where i think you will really notice some improvement. more area under the curves.

also my car is at 70k miles without CBU cleaning which may be a a factor. but I think JBD is a must have soon after you buy a 335d (a used JBD), but deletes is really where you see the improvements. I think buying a new JBD or Dinan tune isnt worth it assuming you would wanting to delete and tune the car down the line, and you could use the $300 towards a tune.

[GodStang]

Ah ok. Thanks. I just bought a JBD used off of the Facebook page. Came in the mail about 20 mins ago. I plan to run it till I sell out other house then will do the complete delete and sell the JBD to complete the circle of life. Thanks for posting this.

Originally Posted by aaddam2

Stock (from BPC dyno graph) 237hp / 396 ftlb @wheels

(JR's dyno is slightly different stock readings)

So the gain would be: +53whp / +30wtq (compared to BPC baseline stock dyno)

dont think my dyno will show here, but i believe the power/torque comes in with a steeper slope in the low rpm range with JBD vs stock, thats where i think you will really notice some improvement. more area under the curves.

also my car is at 70k miles without CBU cleaning which may be a a factor. but I think JBD is a must have soon after you buy a 335d (a used JBD), but deletes is really where you see the improvements. I think buying a new JBD or Dinan tune isnt worth it assuming you would wanting to delete and tune the car down the line, and you could use the $300 towards a tune.