F80 Paul Johnson 93oct Stock Tune

[irunalot]

Originally Posted by Tecnniqe

What rims and dimensions for the 4s’ are you using and does it allows you to pull on the street with this tune?

I tried Cup2 on a stage 2 and that was glued to the road in optimal conditions but even then you had to be careful on exit.

I'm on 20" BBS Fi-Rs so I'm a bit limited on rubber. The Cup2s are probably the direction I will go, if I get more serious I'll go to 19's for the track and see if I have some better options with sticker tires.

[calubi]

Originally Posted by SYT_Shadow

The CS and GTS were limited to 443ftlb. All the delta in power between those two comes after 5k rpm.

The 'torque limited tune' was keeping it just around 550wtq, we tried to drop it to ~510wtq. Basically 'forcing' less torque and allowing as much top end as the engine would allow.

Something that seems super, super interesting with Paul is the possibility of using torqbyte and a water/meth system like aquamist to literally build yourself a GTS+ clone, complete with safeguards and only running water to lower the thermal load on the engine.
I would like to do that, plus a torque limited tune. The light blue line in this graph. Note the 3-4k rpm torque is much closer to stock and then your topend really takes off.
With water injection, the torqbyte controller and a tune from Paul keeping torque around 510wtq you would have something pretty awesome. A GTS+.

Is this using the torque limit by gear setting in BM3, or something directly in the tune?

[SYT_Shadow]

Originally Posted by calubi

Is this using the torque limit by gear setting in BM3, or something directly in the tune?

That's a boost limit by gear, but i'm sure Paul could make a dedicated tune that directly is like this

[horsepower_and_hounds]

Originally Posted by Rjpacman

Interesting how stage 2 basically makes same power as stage 1

If you have ever read the estimated BM3 power values they claim a 2%hp & 3%TQ going from stg1 to stg2 and the required mods. The tunes are very close. They have squeezed so much out of the initial tune than going from there to stg2 or E30 is quite small and require bolt ons. They are very close due to the OP having none. That is why you should always follow the rule that sometimes if you don't have the right parts or conditions then your ahead to tune down for consistency. I learned that with my M2
irunalot:
Thanks for all the feedback and graphs...... yes John is the man and a hidden gem

[FrankMstein]

Originally Posted by irunalot

I finally decided to move to a custom tune after running the BM3 CS/GTS/Stage1/Stage 2 tunes. All the OTS tunes were great but for me personally lacked some refinement. With my previous car a F-Type SVR I went through a few tunes, and the final custom “track” tune made a huge difference. Having that as previous experience I decided on a custom tune for the F80. After some research on tuners, I decided to go with Paul Johnson (no disrespect to any other tuner that was my personal choice). I asked for a strong tune but something I could track with and drive 7/10ths. or 8/10ths and be safe, lap after lap. I did not want a peaky tune that would drop off after IATs start to rise. Power delivery was also important as the OTS tunes great for power but the delivery at lower RPMs left something to be desired IMHO.

Since I’ve been focused on suspension mods and will continue to do so, I only have drop in BMC filters and no other mods. I’m also running 93 octane Shell or Exxon fuel. I was thinking about catted down pipes but after seeing these numbers and driving the car home, I’m not seeing the need to. Drivability is vastly improved throughout the rev range.

The dyno results posted are stock vs the final F80 tune as well as stock/stage1/stage2/F80 Paul tune. The numbers speak for themselves; I was not expecting these numbers form a stock car, especially the torque figures. One thing to note is the final number is after 7 pulls, so its not a cold.

I can’t say enough about F80 Paul’s attention to detail, we did pull after pull for him to make minor adjustments and I will more than likely pull some data from a track day to further refine the tune. John as CES Motorsports here in the Charlotte area was a pleasure to work with. Very knowledgeable on the BMW platform and making HP. I cannot recommend him enough! Thank you horsepower_and_hounds for the reference!

Any reason why you went with CES and not EuroMpire? CES is more HMD and pre F8x.

[irunalot]

Originally Posted by FrankMstein

Any reason why you went with CES and not EuroMpire? CES is more HMD and pre F8x.

I went with CES as I got a really good reference from a knowledgable forum member and also had a good conversation with the owner. He really does understand how to make power considering he builds some pretty nice high HP engines.

I'm sure Euroempire is a good shop, I just felt comfortable with CES.

[FrankMstein]

Originally Posted by irunalot

I went with CES as I got a really good reference from a knowledgable forum member and also had a good conversation with the owner. He really does understand how to make power considering he builds some pretty nice high HP engines.

I'm sure Euroempire is a good shop, I just felt comfortable with CES.

I have considered them as well but if f80paul just reads your pulls from the street then who needs a dyno?

[irunalot]

Originally Posted by FrankMstein

I have considered them as well but if f80paul just reads your pulls from the street then who needs a dyno?

I agree but for me personally I rather not do 100+ MPH pulls on the street. On the dyno we were up to 140MPH to get a good reading. I've lost my license in NC before for doing dumb shit and thought a dyno was a more "responsible"way of getting a custom tune completed.

To those that wonder why I am getting a tune if I don't "speed", a tuned car feels better throughout the power band not just at WOT. The extra power is also nice to have on the highway and track days as well.

[FrankMstein]

Agreed. I've been lucky.

[domacuratl]

Very impressive dyno numbers for a custom tune on 93 octane over OTS tune. How is the car behaving, does it still drive well and did you have any issues since getting the custom tune? After analyzing this dyno graph, it really makes me consider getting a custom tune for myself.

[irunalot]

I sold the car a year ago and it had zero issues. The new owner drove it for about 9 months with no issues then installed a single turbo and got a new tune. I think he went to Paul Johnson as well but I'll text him and see how that is going.

[domacuratl]

Originally Posted by irunalot

I sold the car a year ago and it had zero issues. The new owner drove it for about 9 months with no issues then installed a single turbo and got a new tune. I think he went to Paul Johnson as well but I'll text him and see how that is going.

What did you replace the car with if you don't mind me asking?

[irunalot]

A 991.2 Carrera S manual with all the options I wanted popped up and I couldn’t pass it up.

[domacuratl]

Originally Posted by irunalot

A 991.2 Carrera S manual with all the options I wanted popped up and I couldn’t pass it up.

Beautiful car man! Any regrets or was it a great decision and if so what makes it so?

[irunalot]

Originally Posted by domacuratl

Beautiful car man! Any regrets or was it a great decision and if so what makes it so?

No regrets at all I’ve always wanted a 911 but as we all know prices were ludicrous for a long time. So when a manual high option car with not sunroof came along I was interested and I got what I wanted for my M3.

As far as differences it’s just the overall driving experience. You sitting much lower and you feel like it’s a sports car. Just like the M3 the mods are endless. My entire suspension is E-Motion engineering with Tractive coil overs. I’m about to add Tail turbos, intercoolers, headers etc. of Porsche tax is real and mods cost more.

I will never say it’s better just different than an F80. I just wanted something smaller and lighter and this car scales in 500lbs lighter than my M3. With me in the car it’s at 3400 lbs with half a tank of fuel. The F80 was 3900ish