BMW V8 M60-M62 Shave a Second from your 0-60MPH times 540i 740i 840ci
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- เผยแพร่เมื่อ 7 ก.ย. 2024
- Gear Ratio Simulator: www.meeknet.co...
Did you know that the BMW 840ci, 540i and 740i have an embarrassing 0-60MPH acceleration of somewhere between 7.1 and 7.4 seconds? It's a bit sad that they accelerate no quicker than a 118i M-Sport with the tiddly 4-pot engine!
My E31 840ci does it in 6 seconds - and this video is all about the things that increase performance, and those that completely messes up engine performance!
This is Part 2 of a four part series - today we look at the differential
Timm's store: www.amazon.co....
![BMW 840CI Sport [E31] | 2 Year Ownership Update](http://i.ytimg.com/vi/l6hzfqBRB64/mqdefault.jpg)
This guy don't beat around the bush.He is onto it,what a champ.Greetings from Australia.🐎
Greeting from the UK!
One of the best mods I’ve done on my e39 540 was installing a wavetrac differential. I stayed with the stock 2.93 ratio but they offer lower gearing as well. Someone I know (wink wink) hit 172mph. The grip and predictably are amazing. Highly recommend
Very glad to have found this channel for my 540i
Glad you have joined!
Bought e38 735i manual last week, so happy I found this channel, great videos and nice cars, thanks :)
Welcome aboard!
"Whizz her right up."You english are open clever etc.You don't beat around the bush Tim.Awesome channel.Love E31s.
It’s really people like this that make TH-cam such a great platform for learning.
Regardless if you have an 840i or not 😅
Thanks Alex - very kind of you!
Clarity again is fantastic! Learning alot.
I suppose a 3.15 and a 6 speed zf would be the ideal swap. the extra gear to bring the cruising rpm back down
420G drops right in there. 3.15 and a 6 spd manual gearbox and it will be a different car.
@@v12stuartstill slow needs boost
I can't wait for part 3.
Yet again, another fantastic video. Now I have the devils job of which I'd rather sacrifice . Although the shame of getting wiped out by a modern hatchback is not somthing to tell the guys down at the pub.
Really impressive stuff Timm, thumbs up :) And kudos for having the km/h scale clearly visible on the gear simulator, so us here on the continent can easily keep up as well.
Hmm my E38 740 diff is leaking oil and needs overhaul, perhaps I should just look for a LSD one too... :P
Glad you enjoyed it!
Masterful video series! Thanks Tim!
Glad you enjoyed it!
Great video with lots of useful information. Got a typ210 3.15 lsd from E32 750 in my E34 540ia, its awesome! Though the 5hp-30 is a bit slow transmission, I find its predictability very nice addition. I know exactly how much throttle to give to downshift one or two gears - some newer cars I´ve driven seem to shift so unlogically. These older BMWs always warm my heart, they are just something else compared to todays cars which are all pretty much same dull boxes of plastic without any feeling to them. Great job!
Couldn't agree more - I've had seven BMW V8's with the same drive train and although the first one took a bit of getting used to they are so predictable!
I have a 1998 540i 250,000 miles on it. No mods. And it easily does 0-60 under 5 seconds. More like 4.5 seconds. It lets you know it too
Interesting Video Timm - I’ve always thought of the 8 as being a cruiser rather than a bruiser though and must admit I always feel relaxed when driving it rather than ‘ready to race’ 😃
Thanks Kev, yes, it can be both - once in 5th gear everything settles down and it really is a cruiser. But, I do like being able to muscle along sometimes!
HEy Timm! g'Day from Australia. Love your channel. I own a 2001 X5 but heaps of stuff is similar......carry on like that.....awesome
Thanks Manfred from the UK - say hello to my family, they live in Bunbury!
really good explanation thank you ! I have an M62TUB44 in my Range Rover Vogue, its diff ratio is 3.73, so I downloaded the Gear Ratio app ( very nice app by the way) and selected Diff Ratio 3.64 ( it was the closest I could find to 3.73 ) and was pretty shocked to see how good the results were
1st 39.5 mph
2nd 62.6 mph
3rd 91 mph
4th 140 mph
5th 177 mph
NB all the above at 5500 rpm
I know its not exact ( the difference between 3.64 and 3.73 is a few % out) , and the kerb weight of the 740i is 1800kg and the RR is 2435kg ( which is 26% more) , but it seems BMW did a god job ( at the time when they owned RR ) on the diff ratio to use on my RR Vogue, not that I get anything like 90mph out of third, but must do some more testing
once again thank you for such clear and informative info on your channel, all the best ( a friend of mine has the 850i V12 and I have pinged him your youtube video about the air flow being so good stock on the V8 and V12 )
Thanks Peter!
Great video as always Tim but just one thing and I don't want to get in between family and all that but your twin brother has stuck his boot model badges the wrong way around. I suppose he has bigger things to worry about now since you ran him off the road at the end there. Haha genuinely laughed at that skit 😂
Thanks! The badges on the LHS say V8 4.4!
@@TimmsBMWRepairsandInformation Ha yeah - I guessed you may say that - the V8 sounds glorious
Timm: Excellent as always but when you refer to the 3.15 diff as "higher ratio" what you mean of course is "lower ratio" !
I'm always confused by the terminology for car gearing - always back to front!
I’ve got 35mph /1st gear & 70mph/2nd gear in a standard 59bhp 1.1L Rover 100 (metro) with 4 lads in the car, catalytic converter was smelling like rotten eggs & popping like popcorn.
That's the way to do it Umar, those Metro's take anything - but yours seems to have the go-slow cats fitted!
How do we get the flames from the thumbnail Timm? 😉 I don't even have an 8 series (although I'd give my left arm for one😂) I just like you and like watching your videos, your 6 Series ones however are useful to me 👍
For the flames you need two sideways bonfires added in editing!
Hi would you also recommend 3.15 for 540 M62 6 speed manual? Looks like the gearings are different... second gear with 3.15 would be around 90kmh so until we get 100 we need to shift to 3rd gear...
No, the manual doesn't need any help there!
Thanks again Tim. Great info and presented so clearly. Any chance you could comment on similar information on the 645/650 series?
Great suggestion!
What a very interesting video, Thankyou very much
Hi Tim - another great vid. and nice little tool there. Wondering did you swap out the torque convertor also when you swapped the diff to 3.15? I can't remember of your e31 has the high stall unit in it already? (I have a 3.15 swap to do on my 97 740i). thanks
Thanks! No, same torque converter, it would have been nice to swap it out, but I didn't have one and they are few and far between!
Could you do a brief video on your exhaust system?....thanks.
Yes, next episode!
THANK YOU TIMM ! This is one of the very obvious videos of course but to mention the rest of your work you are a genius! this is the work of a saint. You already made my bmw great and I didn’t even try yet. Whenever I gotta do TH-cam research on my e38 I tend to add “Timm’s bmw” in the search bar hoping you made a video for it 😅 Also if possible, do you think it’s worth converting an e32 diff for my e38? Or would it be just as easy to look for an e38 diff. Feel like e38 had just as much if not more LSDs but I’m not good with info just like to drive. Thanks
Thanks David, very kind of you! Probably best off with an E38 open 3.15 diff!
@@TimmsBMWRepairsandInformation what if I wish to party ? And plan on a 6 speed swap. But even if it was an automatic and I wanted to party ? Would it be cuz an LSD would be stressed with the load of this chassis?
You're a great man. Allah bless you.
Bless you too!
Timm, In regard to your comments regarding uneed and unwise "Performance Upgrades". I've always said, " 300 german engineers are much smarter than I. " Thus leaving a BMW bone stock is always a word to the wise. Cheers
Thanks Christian!
540 is around 6.4 actually fyi. 👍
Great videos, keep em coming 😊👌
Thanks for the info!
Very well done! What do you think of BMW's M models? Would you own one?
The ultimate driving machine.☑️🐎🐂
Lovely classic design the 840! I am sure a manual 'box and with an LSD would be the ideal?
Impressed by your sim,,, you write software too??
Thanks, yes, that was written in 'G' or Labview - a very strange language
Hi Timm, long story buymy diff on the M60 840ci is now whining and needs replacing. Does this upgrade definitely have to be from the 750 e32? Also Heasman Differentials say they can convert my diff internals to LSD and 3.15. Daily driver and car now off the road so need to get something sorted. Not even found an e32 750 diff yet, not in the UK and from a bona fide looking seller!
It's getting harder, that's for sure. If you can afford it go for that offer. By the way, my 3.15 diff has whined for 8 years so far!
Hi Timm, I’ll be popping in to see Matt Dennis for my 840’s exhaust at some point soon but am having trouble finding anyone who will swap my 2.81 ratio for the 3.15 lsd.
Can you recommend anyone at all?
Thank you for your super channel by the way👌🏼
Lee Shannon at Bentley swapped mine over, give him a call and say hello from Tim!
@@TimmsBMWRepairsandInformation thanks Timm, much appreciated and will do 👍🏼
Sir Timm, I hope you doing well this first week of July, I hope you can help me out with the transmission service for 840ci 1995 m60 , it has to be done??? my car has 81k miles ...if so, can suggest which fluid is good ?? Thank you forever.
Mario. From Raleigh nc..
Hello Mario, here's the procedre and the recommended fluids: www.meeknet.co.uk/Gen_BMW/ZF_5HP30_Gearbox.pdf
Great Job! Thank you
Thank you too Elvis!
hi tim great video , any news on your alloy that halfords screwed up as yet ?
everyone is going to slow today hahaha
Getting even slower here now!
Thank you very much for your time and sharing Timm, very much appreciated. Another fine bottle to be popped to your good health for sure :)
By the way it's Part 2, and not Part 1 as you wrote in the description !
Ooops....
What about an E53 4.4 286hp... mine seems rapid enough.
Pitty my 2002 X5 4.4 has two diifs, not really a viable swap out. Can't even disconnect front drive shaft and run as rear wheel drive only as by design it wont have any drive. Smaller diameter wheels and tyres, no that's not an option either!! Waiting for part 3, maybe an engine/Dme mod for the M62 TUB ??
We love the foreign comedy here in the states
Oy, I'm not foreign!
@@TimmsBMWRepairsandInformation rough, lol, maybe good comedy is foreign ?
As well as pristine e31s with white interior
Yo bro how will a 3.64 ratio in a e38 v8 do ,tryin to get to highway cruising speed?
And what’s the topspeed
Top speed 145MPH at 5500RPM - for more info download the calculator: www.meeknet.co.uk/E31/Timms_Gear_Calculator.htm
Will it accelerate faster then 3.15
I don’t have pc to download the file my bad bro
250 GBP for e32 3.15 LSD? 😂 give me back those prices. Just got same diff for 1100 eur.
Blimey, that's a bit strong!
Hi Timm,I like the performance you are getting with what you have done.
I have a low miles 44k 98 740il would the same mods work on my car thanks.
Yes, absolutely, BMW fitted a 3.15:1 in the 740i Sport for this reason!
Timm, in normal use does the steptronic change up a gear at the same engine speed, or at the same road speed?
Seriously thinking of changing the diff in my 540iT, as the gearing is far too high. 2,000 rpm @ 70mph is ridiculous, and I doubt the fuel consumption is much different in relaxed real world driving.
Thanks Martin - the gear changes are made depending on engine torque - the more torque the later the gear change!
Thank you very much for your informative and technical explanations. It really makes an impact when making a decision. I do have a question: I have 2001 740i M sport with the original M62TUB44 engine. I might need a new engine and thought why not swap with the 4.6 V8 (the M62B46), I know its the same engine block so it would very much bolt right in, I know it uses the same DME (Me 7.2) and I need to flash it with the 4.6 program this way it can still communicate with EWS, I know i need to change the oil pan. My questions are: sis this swap doable? If yes, do I need to change the transmission/swap the torque converter, or my transmission will work well? Are there anything else I need to worry about it/change in the swap?
Thanks Annas, that sort of question would be perfect for Bimmerforums.com on the 7-Series pages - I have never done the swap but I do remember someone else doing it on the forum
I went 50 or 60 in 1st on accident I was mid redline
great info, so would an open diff from a e38 735 at 3.15, go into the E31 840ci? thanks.
No, they are quite different!
Very interesting video. Honda VTECH owners need a Honda version of this program so they can learn how to drive their cars.
I so want those Rondell wheels on my E38, so hard to find :(
I bought them new right as they disappeared off the face of the earth!
@@TimmsBMWRepairsandInformation I can't believe Rondell won't take the opportunity to put them back in production or that none of the aftermarket wheel makers makes a copy option.
can you show us how to flush the tranmission with torque converter? or you have any thoughts of flushing the trans automatic
No need to flush - just drain, replace filter and refill- there is a lot left in the torque converter but changing the fluid always does the trick.
Exactly.
I disagree with the m60 manifold claim you made as I have done it before also m60b35 has the same size intake runners as m62 but m60 also has the velocity trumpets which brings better air flow increases the torque and power and the other m60 manifold as same as the m40 intake manifold that was fitted x5 and range rover with 4.4 and 4.6 both vanos engines m62tub44 m62tub46 please correct me if I m wrong as I drove the car with both intake yes car will lose the low end torque but the peak torque and the power much more with m60 manifold thanks
Dyno graph comparisons 👍
Sorry I was comparing m60 manifold or b40 manifold to m62tub44 as yours already got the same big intake only differences is the inlet runners
The diff whit lsd from e32 is suits to e39 540?
No, different case
What do you recommend on a 2003 530i steptronic
The E39's are great cars, just like an E38 but smaller! If you are willing to do work on the car then go for it - but, if you want a garage to do all the work I'd give it a miss!
@@TimmsBMWRepairsandInformation well said
This is partly why 0-60 times are poor on some BMWs. My E30 318iS has a 4.10:1 diff which is ideal (seems a big number because 4th is 1:1, 5th overdrive 0.81:1 on most older BMWs). But it means I have to change into 3rd before I run out of revs at 55mph. It's also why my Z4 2.5 isn't much slower than a 3.0 in the real world.
E39 sport has 3.15 open
Cat delete?
No - but close!
you programme?
I do - but not cars!
Hi Timm, Again thanks for the great content!
For those stuck with the 4HP24 on the M70. Do you think a 8HP70 is feasible? We are a few people contemplating this idea: www.bimmerforums.com/forum/showthread.php?2392456-8hp70-mated-with-a-m70
I have an E32 750il and an E39 535i.I am going to mix it up somehow.We are loving your stuff Tim.All the best.
is it workin with 735 i v8 ? 235/245 ps m62 engine ?
Use Realism.com to find which ratio you already have - I'm guessing 3.15!
Where about are you based if not secret?
You'll have to work that out yourself - there's lots of clues in the video's!
@@TimmsBMWRepairsandInformation I worked that out a few months, but I won't tell :-) If you're ever touring the Highlands in your E31 PM me.