Tuned Performance

[Longboarder]

Looking at a 2018 X5M as I need something bigger. I'd prob tune it with Racechips or something simple like that.

Anyone have stage 1 tuned acceleration results? Looking through the dragy FB leaderboard results for BMW there are a couple F15X5/6M there with good results but have no ideas on the mods.

Cheers.

[Klienfeld303]

Originally Posted by Longboarder

Looking at a 2018 X5M as I need something bigger. I'd prob tune it with Racechips or something simple like that.

Anyone have stage 1 tuned acceleration results? Looking through the dragy FB leaderboard results for BMW there are a couple F15X5/6M there with good results but have no ideas on the mods.

Cheers.

I don't have results but seat of the pants performance data is pretty significant for BM3 upgrades. My car completely changed on stage one. So much so that I don't think I even need stage two. (Daily driver in NYC).

[Longboarder]

Originally Posted by Klienfeld303

I don't have results but seat of the pants performance data is pretty significant for BM3 upgrades. My car completely changed on stage one. So much so that I don't think I even need stage two. (Daily driver in NYC).

Ok thx. This is the same engine in the M5 and M8 right? I have a 2020 M8 and it responds nicely to a tune.

[Klienfeld303]

Originally Posted by Longboarder

Ok thx. This is the same engine in the M5 and M8 right? I have a 2020 M8 and it responds nicely to a tune.

Yes sir I believe so.

[J0hnnyB0yx5m]

Originally Posted by Klienfeld303

Yes sir I believe so.

Go stage 2 lol you don't know what your missing lmfao

[Longboarder]

Had this for a couple days now - not a ton of seat time yet but it's slower than what I imagined. And it seems to have a lot of turbo lag especially off the line trying to brake boost until hitting 2,500rpm. I didnt expect that as the newer v8TT (had the M8) has no lag whatsoever even off idle.

Perhaps a tune will make it a bit more lively so I'll be doing some research. I love flash tunes but might try a racechips gts black for ease of use. Also for the turbo lag, I presume the stock downpipes are the issue?

[pachieh]

I am on BM3 Stage 1 after having a Racechip GTS Black with stock DPs. BM3 is MUCH smoother in power delivery and drive ability plus it pulls harder. My main issue with Racechip is that I called it a one hit wonder for WOT pulls. It couldn't do multiple ones back to back without pulling power away. BM3 is consistent all the time plus you get burble off you want that.


Racechip was an annoying physical install, BM3 is dead simple and you can do a lot more on the BM3 platform for data logging, code clearing, etc.

[KLR X5M]

Stage 2 ots here with dp and afe intake. 0-60 times with dragy have been in the 3.8 range without trying to launch too hard and 1/8 mile in the mid 7s and high 90s trap. Haven't stretched it out to a full 1/4 yet. Plenty good enough for my dad mobile.

[Blue By You]

Originally Posted by KLR X5M

Stage 2 ots here with dp and afe intake. 0-60 times with dragy have been in the 3.8 range without trying to launch too hard and 1/8 mile in the mid 7s and high 90s trap. Haven't stretched it out to a full 1/4 yet. Plenty good enough for my dad mobile.

Car and Driver tested the '17 F85 at 3.8s 0-60. (And a .98 skidpad which is pretty insane for a 5,300lb SUV) https://www.caranddriver.com/reviews...d-test-review/

So I wonder if you're actually hitting a lower 0-60 time?

[Longboarder]

Originally Posted by Blue By You

Car and Driver tested the '17 F85 at 3.8s 0-60. (And a .98 skidpad which is pretty insane for a 5,300lb SUV) https://www.caranddriver.com/reviews...d-test-review/

So I wonder if you're actually hitting a lower 0-60 time?

Car & Driver is too optimistic on many cars and I'm afraid on this car too. They also use the 1-foot rollout so actual 0-60 is 2-3 tenths slower. They also use a density altitude adjustment so they could adjust another 1-2 tenths.

Just checked out YouTube there's an enthusiast who ran his F85 M stock and also with the bootmod tune. Stock it did 4.38 seconds with no rollout and 4.00 seconds tune with no rollout both using launch control with the Dragy gps app so I would believe this random guy on YouTube way before C&D.

[Blue By You]

Originally Posted by Longboarder

Car & Driver is too optimistic on many cars and I'm afraid on this car too. They also use the 1-foot rollout so actual 0-60 is 2-3 tenths slower. They also use a density altitude adjustment so they could adjust another 1-2 tenths.

Just checked out YouTube there's an enthusiast who ran his F85 M stock and also with the bootmod tune. Stock it did 4.38 seconds with no rollout and 4.00 seconds tune with no rollout both using launch control with the Dragy gps app so I would believe this random guy on YouTube way before C&D.

I'm learning some new things!

Supposedly the C8 Corvette only gains 1 tenth from the 1-foot rollout. Maybe wishful thinking, but if that's true then maybe the F85 is closer to 3.9-4.0?

Either way, even 4.38 is insane for such a heavy SUV.

[Blue By You]

Originally Posted by Blue By You

I'm learning some new things!

Supposedly the C8 Corvette only gains 1 tenth from the 1-foot rollout. Maybe wishful thinking, but if that's true then maybe the F85 is closer to 3.9-4.0?

Either way, even 4.38 is insane for such a heavy SUV.

Check out the end of this video where he hits a 3.87s 0-60 run with Dragy.

[Longboarder]

Originally Posted by Blue By You

Check out the end of this video where he hits a 3.87s 0-60 run with Dragy.

Thanks for sharing. Ok so I believe the 4.35 was stock and the 3.87 was with the bootmod tune. Correct me if I'm wrong.

That's a nice gain! Although at 45F DA was a lot better so that might have helped a little on the 3.87 blast. Either way the tune makes a massive difference!

[KLR X5M]

My test runs in the 3.8 range have been summer runs with DA of 2000ft. With 1 foot roll out its 3.6x. Better DA (ie negative in the winter) would easily yield a 3.5 or better 0-60 without roll out

[Longboarder]

Originally Posted by KLR X5M

My test runs in the 3.8 range have been summer runs with DA of 2000ft. With 1 foot roll out its 3.6x. Better DA (ie negative in the winter) would easily yield a 3.5 or better 0-60 without roll out

Thx. Are you stock or tuned?

I guess I need to dust off my dragy and give it a try.

[KLR X5M]

Originally Posted by Longboarder

Thx. Are you stock or tuned?

I guess I need to dust off my dragy and give it a try.

AFE intake, vrsf dp, dinan exhaust and bm3 stage 2 ots

[Blue By You]

Originally Posted by Longboarder

Thanks for sharing. Ok so I believe the 4.35 was stock and the 3.87 was with the bootmod tune. Correct me if I'm wrong.

That's a nice gain! Although at 45F DA was a lot better so that might have helped a little on the 3.87 blast. Either way the tune makes a massive difference!

I missed it at first, but I read down in the comments after you asked. You're right, he mentions "BM3 at 91 stage 1."

[Longboarder]

Update: so my buddy has had great long term success with the RaceChip on his M5...he's done airstrip events and a bunch of miles with no issues. So based on that alone I just order the GTS Black with App control. Seems simple, effective and user friendly for usd $699. I'm usually not a fan of piggy tunes but I'm not racing this thing just like to play around sometimes when there is no traffic.

[KLR X5M]

Originally Posted by Longboarder

Update: so my buddy has had great long term success with the RaceChip on his M5...he's done airstrip events and a bunch of miles with no issues. So based on that alone I just order the GTS Black with App control. Seems simple, effective and user friendly for usd $699. I'm usually not a fan of piggy tunes but I'm not racing this thing just like to play around sometimes when there is no traffic.

Race chip is garbage. If you are going to do piggy back, jb4 is the only way to go. Full can bus integration, safety controls, complete dual pid boost control of the boost solenoids.

[Longboarder]

Originally Posted by KLR X5M

Race chip is garbage. If you are going to do piggy back, jb4 is the only way to go. Full can bus integration, safety controls, complete dual pid boost control of the boost solenoids.

You might be right and I may end up with a JB4. Terry and his two managers Jason and Payam are buddies of mine I see them at race events all the time and I could drive up to Terry's house and he would prob give me a JB4 for free and install it too. Certainly the most trusted and best unit on the market. But I like to try out other stuff too so giving RaceChips a shot. If I don't like it, no harm it's inexpensive and I can resell it.

[Klienfeld303]

Originally Posted by Longboarder

You might be right and I may end up with a JB4. Terry and his two managers Jason and Payam are buddies of mine I see them at race events all the time and I could drive up to Terry's house and he would prob give me a JB4 for free and install it too. Certainly the most trusted and best unit on the market. But I like to try out other stuff too so giving RaceChips a shot. If I don't like it, no harm it's inexpensive and I can resell it.

I had to flash my baby back to stock today as she is going to the dealer for repairs and bot oh boy the difference is night and day man. Feels like a turtle now. Bleh.

[Longboarder]

Originally Posted by Klienfeld303

I had to flash my baby back to stock today as she is going to the dealer for repairs and bot oh boy the difference is night and day man. Feels like a turtle now. Bleh.

Which tune?