BMW M4 BM3 Bootmod3 Stage 2 - 550HP @ WG Motorworks

BMW M4 we have had in for downpipe installation and Remap.
Bootmod3 (BM3) ECU software installed, along with GTS Gearbox Flash, running consistent 540-550HP with same torque numbers (LBFT)
Rolling Road / Dyno - Dyno Dynamics, Dyno Tech
Location - South East, Kent, near Sittingbourne
Check out our online HP Calculator to see what we can offer for your car @ wgmotorworks.co.uk
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[@Cirinoes]

hello there, what you have only down pipes and the stage 2 bm3?

[@WGMotorworksYouTube]

Yes thats correct

[@franklinwatson7767]

Is that to the crank? I'm assuming Fly next to the 553.4 on the graph means horsepower to the flywheel.

[@gmcc7]

You cannot measure flywheel how on a rolling dyno

[@franklinwatson7767]

@@gmcc7 yes you can

[@gmcc7]

@@franklinwatson7767 no you cant

[@sufficetosay]

The dyno is measuring the power and torque at the wheels.

[@sufficetosay]

You would have to have the motor directly bolted to a dyno without the drivetrain to get flywheel power.

[@hugoenriquez9318]

Stage 2 pump gas or Stage 2 E30?

[@WGMotorworksYouTube]

Fuel fuel only, we do not have Enthonal at pumps in the UK

[@jkpisces]

did you do anything to reinforce the hub?

[@BosaFTW]

Stage 2 93 octane?

[@WGMotorworksYouTube]

Yes thats correct

[@franklinwatson7767]

Disregard my last post, I see flywheel on the graph. Now with a 15% drivetrain loss, that is about 470 wheel horsepower, that is not much for BM3 stage 2. What type of fuel was used. BM3 Stage 2 on 93 octane usually gets about 500 wheel HP and stage 1 averages around 480ish wheel HP.

[@WGMotorworksYouTube]

Unfortunately, there are a lot of overinflated figures going around - this is actually a very good result
If you take in WHP then you are either from America / have a Dynojet Dyno, which massively over read

[@franklinwatson7767]

@@WGMotorworksTH-cam Yes you are correct in both instances. Yes, a Dynojet may be less conservative with their numbers, but I own a 570 WHP M4 (Downpipes, JB4 with BM3 Stage 2 BEF and I'm gapping ZL1 Camaro's (650HP to the crank/flywheel) and staying/at times beating Hellcats(700+HP crank/flywheel) so to the wheels HP can't be that far overflated if I'm competing with motors with 100 more HP than my M4.

[@xP3doB3ar]

@@franklinwatson7767 is the jb4 worth it or bootmod can get the power out ?

[@franklinwatson7767]

@@xP3doB3ar BM3 is a flash tune, so it's better than the JB4 as a flash tune actually reprograms the ECU for more power, the JB4 on the other hand just tricks the ECU. To answer your question, yes, I think the JB4 is worth it as it has other uses outside of making more power, I.e meth, boost by gear, lighting etc but a custom BM3 tune can get you and or exceed the power of a JB4 alone. I got OTS BM3 stage 2 93 oct tune stacked with JB4 and it pulls.

[@Chris-qc9dj]

I’ve got 525/560 stage 2 custom bm3 93 oct