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Chat Area => General Car Chat => Topic started by: aaronjb on 24 October 2011, 21:57:24

Title: If anyone has a spare BMW straight-6 lying around...
Post by: aaronjb on 24 October 2011, 21:57:24
Here's an idea:

(http://a4.sphotos.ak.fbcdn.net/hphotos-ak-ash4/299057_296721927023199_143580742337319_1145084_370082135_n.jpg)


I bet that'll be fun.
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: albitz on 24 October 2011, 21:59:31
Or a senator, or an LC. :o
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: aaronjb on 24 October 2011, 22:07:59
Or a senator, or an LC. :o

Well, you could.. only they're building this chassis specifically around a BMW donor ;) (Engine, gearbox, diff, column etc all from the donor)

Still I bet it'll be a riot, although arguably not as nutty as the turbocharged bike engined version..
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: Del Boy on 24 October 2011, 22:10:57
M3 E46 engine by the looks, 343 BHP from a N/A 3.2 straight 6  :-*
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: aaronjb on 24 October 2011, 22:12:52
M3 E46 engine by the looks, 343 BHP from a N/A 3.2 straight 6  :-*

Correct Del (good eye!) :)
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: Del Boy on 24 October 2011, 22:14:28
M3 E46 engine by the looks, 343 BHP from a N/A 3.2 straight 6  :-*

Correct Del (good eye!) :)

 :y :y
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: I_want_an_Omega on 24 October 2011, 22:43:56
why do the exhaust pipes on 5 & 6 cross over?
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: aaronjb on 24 October 2011, 22:45:38
Not a clue :) I'd say they were aiming for equal length primaries and with the chassis in the way at the back had to do that to keep them the same length as 4.. but then 1, 2 & 3 seem considerably shorter at first glance, so.. not a clue  ;D
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: Kevin Wood on 24 October 2011, 23:51:49
Here's an idea:

(http://a4.sphotos.ak.fbcdn.net/hphotos-ak-ash4/299057_296721927023199_143580742337319_1145084_370082135_n.jpg)


I bet that'll be fun.

I reckon it'd be a bit "plough straight aheady" with that great lardy donk up front.

Still, the straight bits would indeed be fun. :y
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: albitz on 24 October 2011, 23:53:33
Yep, permanent terminal understeer and break all traction. ::) would still be a hoot though. :y
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: tunnie on 25 October 2011, 08:56:46
Yup thats going to be quick in a straight line, but a seat in it & away you go!
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: Nick W on 25 October 2011, 12:00:09
M3 E46 engine by the looks, 343 BHP from a N/A 3.2 straight 6  :-*

For as long as the conrods hold up!
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: Marks DTM Calib on 25 October 2011, 12:15:56
I would think a small block all alloy V8 would be lighter and sit a little further back in the engine bay improving balance.

So yeh, not a great choice realy!

At the end of the day, a car like that needs to go round corners as thats where the fun is!
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: albitz on 25 October 2011, 12:18:16
I suppose power induced oversteer to counteract the tendency to understeer would be the way to have fun with it. ;)
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: Marks DTM Calib on 25 October 2011, 13:21:32
I suppose power induced oversteer to counteract the tendency to understeer would be the way to have fun with it. ;)

Not something you want to do on a light car though realy....and certainly not somehting to do on the road  ;D
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: aaronjb on 25 October 2011, 13:25:38
I suppose power induced oversteer to counteract the tendency to understeer would be the way to have fun with it. ;)

Not something you want to do on a light car though realy....and certainly not somehting to do on the road  ;D

I know some people who enjoy driving Caterfields and the like on track purely for their power induced oversteer fun.. surely much better in a light car than a heavy one, anyway?  ???
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: Marks DTM Calib on 25 October 2011, 13:30:11
I suppose power induced oversteer to counteract the tendency to understeer would be the way to have fun with it. ;)

Not something you want to do on a light car though realy....and certainly not somehting to do on the road  ;D

I know some people who enjoy driving Caterfields and the like on track purely for their power induced oversteer fun.. surely much better in a light car than a heavy one, anyway?  ???
Not much finess though is it.

For me its the pleasure and skil of getting it cleanly round a corner whilst balanced on the edge and using tiny blips only when realy needed (e.g. when you screw it up).

The neanderthal approach of taking car which has been made superlight and giving it large round a corner is just so wrong.  ;D :y
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: aaronjb on 25 October 2011, 13:34:03
It's a lot of fun, though ;D especially as you can't time on track days, so it's always hard to know whether you're really making the 'right lines' through the corners..

Not that I ever got the MR2 that sideways - with the engine at the back and a short wheelbase it's a touch snappy for that. Plus it's mine, therefore costly to repair.. The BAT Caterhams, on the other hand.. ;D
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: tunnie on 25 October 2011, 13:47:53
don't really know the story behind it, someone could have bought a written off M3 dead cheap and decided to pop it in
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: aaronjb on 25 October 2011, 13:50:41
It's Dax's new demonstrator - actually still in development. Previously the Rush used (IIRC) Jag donor parts (e.g. the rear diff).. they're getting harder to get hold of and the Jag diff weighs about as much as a small family hatchback..

So they decided to move to BMW donor parts as they're more readily available and of a much more modern design - I imagine the diff weighs about 1/4 of the Jag part (seriously, I've picked up gearboxes that are lighter than an XJ40 diff!).

I would think that ultimately it'll accept all the same engines as the current Rush, though - they're just putting this in to show that you could "if you wanted" use 'all' the parts from one donor (cheapest way to build is to buy a crashed donor, etc) rather than sourcing an expensive bike engine or alternative..

As I say, their bike based Rush is quite, quite nutty. It's also as fast around the TG track as the Koeniggseggeggegg: http://www.youtube.com/watch?v=RBVY-MFgWZo
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: aaronjb on 25 October 2011, 13:51:19
Er, that all sounds like a massive plug for Dax.. it's not really ;D though that may well be where the chassis for my next project comes from (hence I found out about the new BMW Rush when I was there last :))
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: Marks DTM Calib on 25 October 2011, 13:53:10
I ahve to say that the Dax chassis is very nice, way ahead of the Westfield and the Caterham ones which dont appear to have been developed a great deal
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: aaronjb on 25 October 2011, 13:55:15
I ahve to say that the Dax chassis is very nice, way ahead of the Westfield and the Caterham ones which dont appear to have been developed a great deal

It's a lot nicer than their 427 chassis (the one I'm looking at) ;D - there is a chassis out there I'd much prefer.. but the rest of the car doesn't fit my aims, not to mention a 18 month lead time is a bit hard to swallow :)

I wouldn't say no to a go in a Rush, though.. I might even fit in one (unlike a Caterfield, which I don't!  :-[ )
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: albitz on 25 October 2011, 14:27:55
I suppose power induced oversteer to counteract the tendency to understeer would be the way to have fun with it. ;)

Not something you want to do on a light car though realy....and certainly not somehting to do on the road  ;D

I used to drive my HS in such a fashion as a matter of course.I was very young and stupid though.It got to the point where the local parish council held an extraordinary meeting with the local police to see if they could have me banned from driving within the confines of the village I lived in. :-[ ::)
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: aaronjb on 25 October 2011, 14:29:16
I used to drive my HS in such a fashion as a matter of course.I was very young and stupid though.It got to the point where the local parish council held an extraordinary meeting with the local police to see if they could have me banned from driving within the confines of the village I lived in. :-[ ::)

I'd say that's an achievement to be proud of, Albs! ;D
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: albitz on 25 October 2011, 14:32:51
I suppose power induced oversteer to counteract the tendency to understeer would be the way to have fun with it. ;)

Not something you want to do on a light car though realy....and certainly not somehting to do on the road  ;D

I know some people who enjoy driving Caterfields and the like on track purely for their power induced oversteer fun.. surely much better in a light car than a heavy one, anyway?  ???
Not much finess though is it.

For me its the pleasure and skil of getting it cleanly round a corner whilst balanced on the edge and using tiny blips only when realy needed (e.g. when you screw it up).

The neanderthal approach of taking car which has been made superlight and giving it large round a corner is just so wrong.  ;D :y
I agree up to a point.To do it Clarkson fashion is hamfisted childishness,but get it to that point where you are steering on the throttle and  applying just the right amount of opposite lock to unwind the lock and give it full bore at the exit point is poetry in motion. :)
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: albitz on 25 October 2011, 14:36:18
I used to drive my HS in such a fashion as a matter of course.I was very young and stupid though.It got to the point where the local parish council held an extraordinary meeting with the local police to see if they could have me banned from driving within the confines of the village I lived in. :-[ ::)

I'd say that's an achievement to be proud of, Albs! ;D

Local copper was a cool dude.He came and had a chat, words to the effect "I couldnt give a toss if you want to kill yourself,but do it out on the little country lanes in the wee small hours where you wont kill someone else as well. Please do it outside of my patch as I get pissed off if I get called out of bed in the middle of the night to clear up the aftermath".
Fair enough, I thought. :y ;D
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: aaronjb on 25 October 2011, 14:40:25
Local copper was a cool dude.He came and had a chat, words to the effect "I couldnt give a toss if you want to kill yourself,but do it out on the little country lanes in the wee small hours where you wont kill someone else as well. Please do it outside of my patch as I get pissed off if I get called out of bed in the middle of the night to clear up the aftermath".
Fair enough, I thought. :y ;D

;D Fair enough, indeed! I'm guessing this was 'a few years ago' when that sort of thing was 'allowable', rather than today, where you would be considered more dangerous than a pedophile ;)


Oh and I agree with you on the art of drifting a car out of a corner.. much maligned though it may be, I quite enjoy watching drifting. People say it takes no skill, yet I know I couldn't do it if you paid me (not without significant amounts of practice and someone else paying to repeatedly panel beat the car back into shape, anyway!)
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: albitz on 25 October 2011, 16:10:37
Twas in the early 80,s Aaron.Learned by watching many masters of rallying at work in Ireland in the late 70,s and then practising in old Avengers and the like around Irish country roads. Didnt appreciate the fact that it was much more frowned on in rural England when I first came off the boat. ::) ;D
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: albitz on 25 October 2011, 16:19:16
Can well remember watching Russell Brookes,Tony Pond, and most of the big foreign names on the circuit of Ireland. Mostly in Escorts,Chevettes etc. although also saw the works Stratos,TR7V8,Fiat 131 etc.
They would approach a tightish bend on a narrow road at say 75mph,give it lots of left/right on the steering wheel (scandinavian flick) to unsettle the suspension/tyres, so it was going very sideways into the bend,keep the right foot buried and then unwind the lock at the apex, so the tyres would find grip again,and the car would torpedo off onto the straight like a rat with a rocket up its arse.
Not quite the same these days imo.Faster yes,but that combination of RWD and enough horses to overpower the tyres required a driving style which needed a combination of large gonads and a fair degree of finesse at the same time,and it was very exciting for spectators to watch close up.
Tony Pond was a very special talent indeed imo. ;)
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: aaronjb on 25 October 2011, 18:28:00
Ah the early 80s.....



I was just a baby.

;) ;D  :-X
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: Kevin Wood on 25 October 2011, 22:38:49
It's Dax's new demonstrator - actually still in development. Previously the Rush used (IIRC) Jag donor parts (e.g. the rear diff).. they're getting harder to get hold of and the Jag diff weighs about as much as a small family hatchback..


The Rush has always used Sierra running gear, AFAIK. Certainly the one I helped build did. The jag stuff is indeed too heavy for a seven by a long way.

I never liked the way they used the full track of the Sierra suspension at the rear. All too easy to forget the car's so wide at the back when it's so narrow at the front. ::)

That does look like a retrograde step. Plenty of very light engines around these days will give as much power as a seven style car can put down (and you can't begin to put anything like the output of an M3 down). Then again, DAX demonstrators never have been remotely sensible. ;)

Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: 2woody on 26 October 2011, 09:15:06
I've got a spare BMW straight six engine lying around if anyone fancies a play....
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: aaronjb on 26 October 2011, 09:36:56
I've got a spare BMW straight six engine lying around if anyone fancies a play....

I'm starting to think you've got one of just about everything lying around up there :)
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: Kevin Wood on 26 October 2011, 09:39:07
I've got a spare BMW straight six engine lying around if anyone fancies a play....

Putting it on the bathroom scales might be a good first step. :y
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: tmx on 27 October 2011, 16:51:40
Yes E46 M3 engine an S54B32 to be precise Bi Vanos equipped as well so 333bhp


it would be running on standalone management?? which means vanos is disabled! if it is then its considerably down on power! i know mega squirt can run vanos it has to be disabled
Title: Re: If anyone has a spare BMW straight-6 lying around...
Post by: 2woody on 31 October 2011, 10:59:52
I've got a spare BMW straight six engine lying around if anyone fancies a play....

I'm starting to think you've got one of just about everything lying around up there :)

try me......!

recently scrapped an E36325 - kept the engine for something I've got in mind. It's quite light - certainly lighter than an Omega V6