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  1. #1
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    5 out of 5 members liked this post. Yes Reputation No

    Ran an 11.579 at 122.24 mph at Byron Saturday 6/8/13

    Running consistent mid 11.7s to low 11.8s I tried one run with launch control and managed an 11.579 at 122.24 mph. I was pleased with this number because the exhaust dumps and velocity stacks weren't on so I was down on power about 30-35 whp compared to my 11.544/118.50 on 4/21/13. The density altitude was pretty high at 1,771 and the car was heavier since I didn't pull the exhaust so I had that working against me.

    When launch control engaged the tach jumped to 5,000 rpms and then ran to redline without any bogging so I got into the power band right away. Traction was good as I pulled an 1.79 60-foot time running 19 psi in the Hoosier 315/18 drag radials.

    However in true BMW ECU/SMG fashion, when I tried LC about 30 minutes after the 11.579 run it refused to work. Some things never change...

    Safe racing,
    KenL
    Attached Images Attached Images  

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    What's your setup?.

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    That's flying!!!

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    Pretty straight forward. A 3.91 ring and pinion, Evolve headers, a FluidMotorUnion tune and Hoosier drag radials provide the power and grip while a RPI GTS exhaust, deleted seats, light weight battery and a Recaro racing seat help on the weight reduction front.

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    Click here to enlarge Originally Posted by MSIZZLE Click here to enlarge
    That's flying!!!
    thanks. It did feel good.

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    Beast! and she got a lot more left in her HP and DA wise! @Sticky
    ///M5 LCI
    "It's like the F10 is the 911 Turbo to the E60's GT3" -Pistonheads (M5 feature)

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    Click here to enlarge Originally Posted by KenL Click here to enlarge
    However in true BMW ECU/SMG fashion, when I tried LC about 30 minutes after the 11.579 run it refused to work. Some things never change...
    The SMG (and DSG in the newer cars) will not allow LC if the gearbox oil is too hot. Try driving the car around in 2nd/3rd at low speeds for a few minutes after running maybe.

    It seems like for me - if I use LC (say, after driving for an hour) - it will not work again until 5-10 minutes of "cruising" around. By cruising, I mean short shifting - and going the speed limit... Click here to enlarge

    On the other hand - as I am sure you know, you can just mash the throttle down and "dump the clutch" anytime you want - just don't think it's the greatest thing for the car though.

    Good times btw - that's a quick car!

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    1 out of 1 members liked this post. Yes Reputation No
    Click here to enlarge Originally Posted by inlineS54B32 Click here to enlarge
    The SMG (and DSG in the newer cars) will not allow LC if the gearbox oil is too hot. Try driving the car around in 2nd/3rd at low speeds for a few minutes after running maybe.

    It seems like for me - if I use LC (say, after driving for an hour) - it will not work again until 5-10 minutes of "cruising" around. By cruising, I mean short shifting - and going the speed limit... Click here to enlarge

    On the other hand - as I am sure you know, you can just mash the throttle down and "dump the clutch" anytime you want - just don't think it's the greatest thing for the car though.

    Good times btw - that's a quick car!
    Thanks. The only option after running the 1/4 at a dragstrip is returning to the pits at 10 mph so I guess I'll have to live with it.

    I didn't think gearbox oil temp was a factor in my car since the engine oil (which I know may not be exactly related to the gearbox oil temp but should similarly rise and fall) hardly ever runs higher than 210 degrees F. I was under the impression that the SMG and/or ECU shuts down LC after it senses overuse of the clutch after using LC. Since I thought LC varies clutch slip to max out traction maybe it's worse than the full clutch dump you get when you mash it?

    Regardless of why it shuts down, my best launch was with LC the one time it worked. I would rather have to deal with a little wheelspin and corrective steering imput with a 4500 or 5000 rpm LC launch than an irritating bogging at lower rpms.

    Safe racing,
    KenL

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    Click here to enlarge Originally Posted by 5soko Click here to enlarge
    Beast! and she got a lot more left in her HP and DA wise! @Sticky
    Thansk. I hope to prove that with faster time slips in the future.

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    @KenL I really want to post this on the front page but the slip is too damn small...

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    @KenL I really want to post this on the front page but the slip is too damn small...
    I messaged him after your reply on m5board but he said when he gets back in town.. This would have been nice to show what a modded S85 can do.
    ///M5 LCI
    "It's like the F10 is the 911 Turbo to the E60's GT3" -Pistonheads (M5 feature)

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    Click here to enlarge Originally Posted by 5soko Click here to enlarge
    I messaged him after your reply on m5board but he said when he gets back in town.. This would have been nice to show what a modded S85 can do.
    Agreed. Thanks.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
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    1 out of 1 members liked this post. Yes Reputation No
    Sharing a bigger timeslip that was posted on M5board.
    Can only imagine what this car would do in negative DA instead of the 1700+ on this run!

    Click here to enlarge
    ///M5 LCI
    "It's like the F10 is the 911 Turbo to the E60's GT3" -Pistonheads (M5 feature)

  14. #14
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    The E60 M5 shows it is capable of serious all motor naturally aspirated performance, bolt on M5 goes 11.5@122 in the 1/4 mile

    Yes, this is BimmerBoost.com and we have all become a bit obsessed with forced induction and big power numbers. Sometimes we forget just how quick the naturally aspirated high revving M cars were. Here is a great example of all motor capability with an owner taking his bolt on E60 M5 to the drag strip and managing a very impressive 11.579@122.24 1/4 mile run. That is with a 1.790 60 foot on the notoriously difficult to launch SMG III transmission (ESS SMG software helps) not a new fancy dual clutch. Oh, and also with 1700+ density altitude so it is not the weather skewing the result here.

    This is a 5.0 liter V10 with natural aspiration. No turbos, no boost, in a not exactly lightweight luxury sedan. The S85 is capable of going door to door and even edging out the new F10 M5. The advantage for the new M5 being that adding power is as simple as getting a tune and raising boost thanks for the turbos.

    Whatever side you stand on regarding the naturally aspirated versus turbocharged M motor debate there is no denying BMW built some incredibly impressive past M motors. A 5.0 liter V10 revving over 8000 rpm in a four door sedan? The only other place to get a comparable motor would be from Lamborghini and fitting four of your friends in to go for a ride in a Gallardo does not exactly sound comfortable.

    Nice results by BimmerBoost member @KenL, slip below.

    Click here to enlarge

    Specs:

    Evolve Tubular Headers w/SwainTech ceramic coating
    FluidMotorUnion Custom Tune
    FluidMotorUnion Custom Exhaust Dumps
    FluidMotorUnion Custom Velocity Stacks
    RPI GTS Exhaust Sections 1,2 and 3
    RPI Pulley
    RPI Scoops
    BMC Filters
    RPI Oil Cooler
    3.91 Ring and Pinion
    Sprint Booster
    ESS SMG Upgrade
    Eibach Springs
    Voltphreaks VPH900 Battery
    Hoosier 315/30-18 Drag Radials, Hoosier 245/45-18 A6
    Apex Arc-8 18x11, 18x9.5

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

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    Wow! Would love to see a vide of this run

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    Video*

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    Crazy. Great numbers. Although seemingly lots of work needed to get there. Either way...the S85 will always to me be one of the greatest engines ever made, rod bearings and all.

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    Click here to enlarge Originally Posted by G0TB00ST? Click here to enlarge
    Wow! Would love to see a vide of this run
    Agreed. Any way we could get footage of your next runs at the track?

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    1 out of 1 members liked this post. Yes Reputation No
    If you Google FluidMotorUnion Youtube you'll see the in-car video I took for a previous run which actually was 11.544 at 118.50. That run was in April when it was much cooler and the stacks and dumps were installed. If you notice in my burn-out that the car was bogging badly and even did so on the green light. I didn't use launch control and we think the stacks may have been the issue-maybe giving up some torque at lower rpms so using LC would have helped. Also, we think the trap speed of 118.50 was low and looking at the video it seems I may have shut down a bit early.

    On the 11.579 run in June I did use LC (worth maybe 0.20 to 0.25 sec since my other runs that day were 11.78 to 11.82 without LC) but the stacks and the dumps were not installed, just the stock air boxes. Using LC the car launched hard with the tach jumping to almost 5,000 rpms without any bogging and continued to the 8500 rev limit very quickly in first gear. Bottom line, I think on a cool day using LC the car can post an 11.30 or better. Same cool day situation with the stacks and the dumps avoiding the bogging by using LC and launching above the rpms where the car bogs with the stacks, maybe even a very low 11 is possible. I know for sure next month when I try it again.

    In reality compared to stock at about a 12.95 ET, the bulk of the ET gains came from the headers, the tune, the 3.91 gear and the drag radials-probably 1.10 seconds of the total improvement of 1.41 seconds with the rest from weight reduction, the dumps/stacks, pulley, LC, etc. The point being if you do the first four mods you're in the elevens.

    I am trying to post the in-car video when I ran in the 1/2 mile WannaGoFast Chicago Shoot-out in June where I posted 150.6 mph for the 1/2 mile without the dumps and stacks.

    Safe racing,
    KenL

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    For an 11.3 you would need a 1.6 60 foot and that is going to be pretty tricky. You'd probably need bias-ply tires to do it.

    I think the gears are helping your 60 foot but hurting your trap IMO.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

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    Eeeking out more horsepower at this point is going to be tough. You could always bore the throttle bodies or look into the Schrick cams + extending the redline.

    My advice would be to boost it and show some real power.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Eeeking out more horsepower at this point is going to be tough. You could always bore the throttle bodies or look into the Schrick cams + extending the redline.

    My advice would be to boost it and show some real power.

    Anyone adding a turbo to the S85 ? That would be sick great (once you redesign the whole front of the M5)
    2005 Porsche 996 TTS RWD - Eurodyne 60-130 in 6.50s
    2015 Audi A3 2.0 TFSI - Eurodyne 0 - 100 in 10.67s
    2015 McLaren 650S (RHD) - UK - 1/3rd owner yet to drive


    Click here to enlarge



  23. #23
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    Click here to enlarge Originally Posted by Group.america Click here to enlarge
    Anyone adding a turbo to the S85 ? That would be sick great (once you redesign the whole front of the M5)
    It's been done outside the E60 or E63 body. Power potential would be similar to a Gallardo.

    Doing it in that engine bay is going to be tough and I don't know anybody working on it.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
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