Rebuilding and Modifying a $4000 BMW E46 M3 - Part 5

We install a drift hand brake extension that fits over a stock parking brake handle on a BMW E46 M3.
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[@weedconnoiseur]

The ASM is to prevent you from doing a submarine type move. If you don't rotate in an accident with a 4 point your only direction to go is down. Since your hips and back are supporting you up those will be what takes the impact potentially breaking your back. Since 5 and 6 points don't allow that downward movement they dont require asm technology.

[@DarkMat90]

Yeah, and it's not a requirement for strange rules, rather because submarining kills you. In fact racing harnesses are moving to 5 and 6 point even in lower categories now.

[@gordowg1wg145]

Not so much protecting the back*, but, as you two pointed out, physically slidine under the lap belt - this can also happen with lap/shoulder belts when incorrectly fitted or worn. NOTE, for overweight people who have it on their belly, you are making this even worse. The lap belt should be across the hips and correctly fitted this is usually easy to do with a 3/ point with shoulder harness BUT I have seen many, many videos where pweople who have no idea how to wear a harness will keep tightening the shoulder harness and as a result pulling the lap belt further and further up the torso, away from the strong hips and across the soft belly area - both increasing the chance of slipping under the belt and internal injuries. The further the seat is relined the more likely the driver (and co-driver) are to 'submarine' and be injured. Correctly fitted, the groin strap(s) will hold the lap belt DOWN, across the hips, and also add some restraint against the body. I've never used a single strap, don't like the thought of a single strap crushing my dangly bits, and two straps can be relatively comfortable. Furthermore, submarining can significantly reduce the effectiveness of HANS type devices, which many Motorsport bodies now require, as they work with the upper belts. *back injuries have been uinder investigation for some years, with significant improvements made, in F1, WEC and other sports where the drivers have been more inclined as the seat shape, curved lower back and the more 'vertical' loading on the lower spine has been causing spinal fractures - some of you may like to check up on that.

[@ilyafr86]

the breakaway removes the need for a hans with a 4-6pt harness. without the breakaway you either submarine as said above or your head goes straight forward and breaks your neck. most crashes above 40mph iirc involving harnesses without a hans/breakaway/asm are fatal because of this!

[@gordowg1wg145]

@@ilyafr86 You mean a basal (AKA basilar, IIRC) skull fracture* - the force on the head physically breaks the base of the skull as it bpulls on the top of the spinal column - sometimes it is called an internal de-capitation. People have survived some very high speed crashes without it, but why take chances - however, it is rather impractical for road use, so the ASM option is a good compromise. From what I understand, the principle behind ASM is that by allowing more movement of the upper torso the body is kept more vertical and so less likely to slide under the lap belt. Some guff here - www.schrothracing.com/products/rallye-belts and here kzbin.info/www/bejne/bp_WmJKwmpJ2fZo *Perhaps one of the most notorious fatal crashes was that of Dale Earnhardt - he was VERY vocal against the introduction of HANS in NASCAR and refused to use one, yet was killed by the very type of injury the HANS was being introduced to prevent (or at least minimise)!

[@mrclown7469]

10:47 The E36 uses a newer design window switch to the E30. It's actually a common mod for E30 guys to install E36 switches. Fun fact: The McLaren F1 uses E36 power window switches.

[@Ejiokpa16]

I kinda like the rollbar with the full interior. Kinda has that actual daily track car look. Can’t wait for the driving videos

[@streetboyschematics]

Looks great with the interior back in

[@HoonGarage]

I absolutely love this series!

[@josuede]

You should check out Chelsea Denofa's channel, he goes over setting up the E46 ebrake and steering for drifting.

[@straightsixracing]

josuede in what videos?

[@nathanielbarbeau4821]

Those E30 switches are extremely satisfying to push.

[@stylerunner2959]

Love the E46 content! I already done it myself but love seeing what your doing

[@kurzjames]

Thank you so much for making me aware of that handle! I’ve been using a piece of bent electrical pipe on my E46 handbrake and it has worked fine, but I can’t pass inspection without that locking handbrake button, so this product is a win for me

[@colinwatt00]

Love that electric seat install. VERY clean.

[@nuisance_carl]

When I had my e brake extension in my E46, it was very inconsistent and actually required a lot of force to lock up the rear. Hopefully it works out better for you guys 👍

[@ianizzy-e4679]

Maybe you could’ve done a rebuild of the parking break in the rear that’s what I’m considering doing

[@nuisance_carl]

@@ianizzy-e4679 I did rebuild the parking brake. Very little difference.

[@TheInfectedWreck]

Thanks for the tip about the seat belt ASM/DOT compliancy, will keep that in mind.

[@MrBaconstrips13]

Woo! Was lookin for something to watch this morning!

[@tobycosford1]

I can't wait to see that thing rippin next summer at TMSP

[@pFbSpecV]

You guys make such awesome videos! Keep up the work! Cant wait for the drift cars on the track!

[@mas921]

I used to remove the rear seats, and strip the trunk when I went drifting for weight reduction, but it actually felt worse with less weight in the rear! Although I imply you guys did it for aesthetics; but until you corner weigh without the seats, I highly recommend keeping them there. a full tank also helps ^_^.

[@The_True_]

Mornin fellas! Hey, I needed a brake anyway, so thanks guys! ✌😎

[@jonnymoberg]

When you build some angle you can call it a driftcar. But I love your videos! Good work guys 😊

[@pazi88]

That handbrake will not work very well for drifting. The stock drum brake style handbrake isn't powerful enough to lock rear tires on asphalt at higher speeds. Even after correct adjustment.

[@SKOMPAS]

Depends on what sort of tyres they are going to run, if they run budget tyres they won't have a problem

[@reidfenwick]

No it can, check out Chelsea Denofa’s drift school videos, he is using the same system on a basically stock e46 sedan.

[@_coffeeandcigars]

Pazi is right! ...hydro is the way to g :). Also check Pazis video on his winterbeater to see how to correctly adjust the handbrake (at the wheel first)

[@pazi88]

@@reidfenwick Yes you can drift easily even without handbrake at all. But for high speed entries where handbrake is really beneficial the stock one isn't very suitable.

[@pazi88]

@@_coffeeandcigars Yeah and the hydro installed to stock rear line(s) is easy and cheap to do and works like a charm. Secondary calibers with hydro are not mandatory to have.

[@TheJayhawk4]

PT, don’t worry about the rear seat. It looks great! Definitely better than having bare metal

[@diaz.rodolfo]

that sliding seat

[@leeroy60]

None of the e46's have threaded handbrake buttons. I believe I left a comment on one of your previous videos stating this and lots of other info. But that only helps if you read them.

[@earnestbunbury2103]

Ain't no one got time for that!

[@Phrew]

The ASM thing is so that you don't slip down and out of your seat in a frontal collision. Otherwise you'll end up crumpling your legs real bad. As you said, due to the breakaway being only on one side, it will behave like a three point belt in regular road legal cars. It lets your upper body go a bit forward and basically "wraps" you around the lower part of the belt. If it wouldn't, your butt would be sliding forward.

[@vaioskaliakoudas6388]

I believe that "ASM" in a tag on the Takata harnesses stances for something "Accident Split Module or Mechanism"

[@GoldenSim27]

that extension is pretty sweet , kinda want one on mine too now , especially that locking botton ,its anoying when trying to have fun sometimes it dosent release

[@abrambam3331]

Hell yea im loving this content!

[@maxzimmermann6605]

Can't stop laughing at that ebrake adjustment, that's not how you are supposed to do it :D

[@wobblysauce]

+

[@d3vil209]

Yeah there’s an adjustment behind the wheels

[@ShopEightyFive]

I'm no bimmer expert but if the parking brake cable is like most other vehicles, each side has it's own adjustment, hence the two adjustment points.

[@ariceff1419]

Even a factory seatbelt has some give to it in an accident. The mounting points metal actually bends a bit

[@alfredolozano695]

That fully function seat.....man im super jelly

[@rhdalllday]

Chelsea de nofa uses stock drum e brake on his daily drifter with an extended handle just like that

[@RobertKohut]

Nice!! Great Job!!

[@gordowg1wg145]

That is a lot of messing around - should just have had someone hold the release button in while you drilled it for an "R" type clip - stick it in when competing and take it out for normal use. A bit more complicated is modifying the pawl arrangement to a fly-off button - with this, the button is pushed in to lock and is normally 'free' in that the ratched/pawl doesn't engage.

[@rich1953]

Does the Takata seat harness work better than their airbags.

[@mapwheel00]

Getting that hand brake apart.... now you know how the wives feel, gentlemen.

[@BenFreedmanRacing]

That was a good one

[@ariceff1419]

Check out B is for build, he explains harnesses and submarining.

[@Orney]

Should have put in a hydro ebrake where you can get a long handle and maybe some dual piston calipers which can really help you modulate the car better than stock.

[@bcab7955]

I made the assumption that a hydro was the only correct way to do it. I'm interested to seeing how this will preform upon testing.

[@jimmehvideos]

Please do some skids asap!

[@alpineskiman]

Make sure you take the bulb out of the e30 window switch if they are lit switches. Ask me how I know...

[@billyz97]

my ebrake on my 99 e46 sedan the leather and hadle are attached and remove pretty easy, pretty certain mine is not threaded either for the button probably a facelift update thing like how they upgraded the door handle design and my door handles are terribly designed and snap right offif the seal is frozen shut

[@h3at32]

are you getting a chassis mount shifter?

[@Itr-tv7kt]

i thought if you use e brakes alot .. it would stretch out the cables

[@MarioFunk]

Guys... What are you doing cutting holes in the back seat?! Why not just use sheet metal painted black, or carpeted plywood??

[@codyheizler7294]

You didn’t know? BMW used the rear leather seats as an internal rear brace. That damn German engineering lol

[@mas921]

The stiffness is a byproduct of having non-foldable seats, not directly rendered by them. There is sheet of metal behind the non-foldable seats (since there is no need for trunk passage in that case), and THAT part is what adds rigidity, not the cushions.

[@2burning2turning]

A cable handbrake used for drifting isn't going to work. All you'll do is stretch the cable. Spent the extra and get a hydraulic setup.

[@Punzer666]

why are you installing rear seats anyway? no-one can sit there anyway

[@MrBaconstrips13]

For the aesthetic. Looks much better that way.

[@alexgorgonio2904]

What’s the name of the roll bar

[@rigobertooliveros9467]

Can this fit on a 350z???

[@TVMikes]

4:26 that’s what she said

[@OverdriveMediaNZ]

You are going to want to remove the centre console arm rest, looks like it is just going to get in the way for using the handbrake

[@jackhartley8996]

rip ebrake cable

[@McrollaMedola]

It’s gotta be at least another 6 inches long to be drift spec

[@willrogers5713]

please swap the passenger seat to match. I can't get past the asymmetry hahaha

[@Niko-xt5bs]

52$... made one from a scrap pipe, some duct tape can hold the buttom pressed ;)

[@Scott-ho1sm]

A lot of back and forth motion to get it off...

[@Jeffball610]

Now to wait 3 months until you can actually use the car ;-p

[@scrotube]

He said e28! MORE e28!!!!

[@VEDEMRACING99]

Insert meme....

[@captainobvious9188]

Please fix the bunching leather of those rear seat backs!

[@scoobygms210]

ASM harness are the number one reason for aftermarket part injuries ! Never ever USE ONE NEVER !

[@billyquist9237]

Can we get a poll for the music choices??? I vote no this music

[@Eqwatherto]

Brother, adjust the rear drums before adjusting anything in the car……………….

[@connellrowe6125]

first comment

[@kiiiisu]

u guys have no idea what submarine means, both shoulder belts give loose so u dont go forward under that lower belt on highspeed accident sry my bad english