Learning about the E89 engines

[Skella]

Is there a thread or easily readable list of the E89 engines and their stats?

I've attached a list of what I think could be all the engines.

Any advice on the engines would be great before I buy. I'm probably not going to go for a anything over 300hp and unsure if 154 bhp would be enough for me. But then again, I don't know the performance stats.

Where can I get the performance stats for each engine?

Is the sDrive 28i got a turbo on it as it has 245hp and is a 2-litre. How does this compare to the 233 and 258 SDrive 30i 3.0 litres as they are similar in terms of bhp.

Thanks

 

[Jollyjoiner]

You can take a look on most Autotrader ads, they will show the the performance figures, or look on Parkers guide, they also show figures

 

[Skella]

You can take a look on most Autotrader ads,

Cheers. Can these be trusted as do the traders enter the figures in or is it auto populated by the website when you pick the model of your car?

 

[enuff_zed]

You can take a look on most Autotrader ads,

Cheers. Can these be trusted as do the traders enter the figures in or is it auto populated by the website when you pick the model of your car?

I just googled e89 performance figures and the Parkers Guide came up.
Gives everything you could possibly want. It is a guide for buyers, not a sellers site, so the figures should be correct.

 

[Skella]

[/quote]
I just googled e89 performance figures and the Parkers Guide came up.


I just googled e89 performance figures and the Parkers Guide came up.
Gives everything you could possibly want. It is a guide for buyers, not a sellers site, so the figures should be correct.
[/quote]

Cheers. I'll get onto it now.

 

[scootr]

I used wikipedia when researching the Z car.
https://en.wikipedia.org/wiki/BMW_Z4_(E89)
They give all the development history and horsepower/torque figures with 0-100km/h times as well

 

[Broads]

What the parkers / auto trader wont necessarily tell you, is the re-map values.. For instance the 18 and 20 can all be mapped up higher. Up to and exceeding the 28 figures as they all share the same engine / components.

I've heard from a reliable source, 18i and 20i can be mapped to 280bhp and 290 lb/ft of torq.

https://www.celtictuning.co.uk/services/performance-stats/bmw/z4-e89-2009-2016/petrol/20i-181-bhp-2011-ECU-remap-chiptuning/stage-3#t3-content

 

[Lazza]

18i, 20i & 28i all basically the same 4 cyl 2.0L twin-scroll single turbo engine and can be mapped to the same levels.
23i & 30i both 6 cyl non-turbo engines (2.5L & 3.0L).
35i & 35is both 3.0L 6 cyl twin turbo engines.

 

[Anonymous]

One way of distilling it down, which will result in many complaints is as follows:

There are two lots of six cylinder engines, the 25 and 30 which are reliable, make a great noise and cheap to maintain but not the quickest. Sensible men like these.

There are two more six cylinder engines the 35i 35is which are the same size as the 30 but are much more of a beast,heavier, less reliable and much more expensive to fix, real men prefer these. They are faster to 60 but likely to slow down more at the next corner.

There are three four cylinder engines that replaced the 25 and 30..these are almost identical and can be easily programmed to all reach around 280 bhp, more than the 25 30 and taking weight into account not much of the 35i. They are cheap to run and handle very well, and, so far, have not had a history of big bills. Real men who have now forgotten what it was to be a real man like these.

Compounding the choice of engines there is the vexed question of auto / manual

The 6 speed auto in the 25 30 was good in its day but a bit slow and married to not as much go a bit depressing, but some sensible men see the sense.

The 7 speed auto box in the 35i 35is is a double clutch device suited to being a beast..the 35is I think only came with that option, real men should pooh pooh but because its a double clutch design its OK becauase it is expensive, tricky in traffic and really do you want to change gear?

The 8 speed box in the 18 20 28 is the same as is 99.9% of all parts in these 3. Bit of a schitso..in very sensible mode very smooth, can go as fast (almost) as the 7 speed and if you remap these to 285bhp will allow you to hang on to the steering as they run through the box very quickly indeed.

6 speed manual boxes were available with a pretty vicious clutch for those who were poverty stricken, never drove a modern auto box or were real men.

OEM goodies like sat nav/ better hi fi /other goodies have a big impact on second hand values unlike other makes / help them to sell quicker.

Heated seats are a must for UK open top cruising, otherwise real men mutate into former real men.

That's one way of looking at it!

 

[Smartbear]

Very witty, are you sure you didn’t have a hand wording the brochures for bmw?
Rob

 

[scootr]

I like it
My 3.0 manual transmission still falls into the almost a real man category.
Not bad results for a fufu car.

 

[Anonymous]

Very witty, are you sure you didn’t have a hand wording the brochures for bmw?
Rob

40+ years in marketing leaves scars..

 

[Skella]

One way of distilling it down, which will result in many complaints is as follows:

There are two lots of six cylinder engines, the 25 and 30 which are reliable, make a great noise and cheap to maintain but not the quickest. Sensible men like these.

There are two more six cylinder engines the 35i 35is which are the same size as the 30 but are much more of a beast,heavier, less reliable and much more expensive to fix, real men prefer these. They are faster to 60 but likely to slow down more at the next corner.

There are three four cylinder engines that replaced the 25 and 30..these are almost identical and can be easily programmed to all reach around 280 bhp, more than the 25 30 and taking weight into account not much of the 35i. They are cheap to run and handle very well, and, so far, have not had a history of big bills. Real men who have now forgotten what it was to be a real man like these.

Compounding the choice of engines there is the vexed question of auto / manual

The 6 speed auto in the 25 30 was good in its day but a bit slow and married to not as much go a bit depressing, but some sensible men see the sense.

The 7 speed auto box in the 35i 35is is a double clutch device suited to being a beast..the 35is I think only came with that option, real men should pooh pooh but because its a double clutch design its OK becauase it is expensive, tricky in traffic and really do you want to change gear?

The 8 speed box in the 18 20 28 is the same as is 99.9% of all parts in these 3. Bit of a schitso..in very sensible mode very smooth, can go as fast (almost) as the 7 speed and if you remap these to 285bhp will allow you to hang on to the steering as they run through the box very quickly indeed.

6 speed manual boxes were available with a pretty vicious clutch for those who were poverty stricken, never drove a modern auto box or were real men.

OEM goodies like sat nav/ better hi fi /other goodies have a big impact on second hand values unlike other makes / help them to sell quicker.

Heated seats are a must for UK open top cruising, otherwise real men mutate into former real men.

That's one way of looking at it!

Thanks. Very helpful way of looking at it.

I seem to be a sensible/forgetful man looking at the 2.5 but the four cylinders sound good with a remap too.

I'm intrigued by automatics now as never considered them until reading this.

I'm test driving this one tomorrow.

https://www.ebay.co.uk/itm/2011-61-BMW-Z4-2-5-Z4-SDRIVE23I-HIGHLINE-EDITION-2D-201-BHP/312882184563?hash=item48d93b4173:g:AVQAAOSwMNJd8Yjc

and this one on Saturday.

https://www.ebay.co.uk/itm/BMW-Z4-2-0-18i-sDrive-s-s-2dr-/202839972837?ul_noapp=true&nma=true&si=bAUe5KXXIZ26SNIQPr8Ng0zoPZs%253D&orig_cvip=true&nordt=true&rt=nc&_trksid=p2047675.l2557

Also getting to see them in the flesh as I can't decide if I prefer white or silver as I never see this car on the road.

 

[Smartbear]

What’s drawing you to the 23i out of interest? (Not that there’s anything wrong with them) :?
Rob

 

[maxman]

Now is a good time to buy an e89 as prices are falling.Look to knock at least £1500 off those prices.

 

[Skella]

What’s drawing you to the 23i out of interest? (Not that there’s anything wrong with them) :?
Rob

Just wanted to have a go as not driven a Z since I had the E85 version. Plus, I'm torn between silver or white so wanted to see what they look like in the flesh.

I really after a 28i or getting a 18i or 20i and remapping the ECU. Just been for a quote from my local performance garage and they quoted me £350 and said I can get 265hp and 420 nm using them (with the 18/20i models).

I did like the drive today. Having a comfort and sport option is great. The six cylinder sounded decent when driving about.
It felt great being back in a Z. Didn't take the plunge but was very close to impulse buying it after a drive haha.

Now is a good time to buy an e89 as prices are falling.Look to knock at least £1500 off those prices.

That much? I tried today but could barely get a few hundred off and I was there for a while

 

[maxman]

Last summer I bought a e89 23i fior £6800 which had a roof with an intermittent fault.The fault cost £325 to have it fixed.The car had 55k on the clock and fsh.The cars are out there just be patient.

 

[Skella]

What’s drawing you to the 23i out of interest? (Not that there’s anything wrong with them) :?
Rob

Just wanted to test drive any Z to make sure I still want one. I got in and loved every second of it .
The engine sounded great and I nearly bought it but I knew I was being silly. Felt great to be back into a Z again and I'm excited to drive another.
I'll be test driving the 2 litre ones when they come up (seeing one today). I read about remapping them on here so I went to my local performance garage and they've quoted me £350 and can get 265hp with 420nm. I think this is the way to go.

Now is a good time to buy an e89 as prices are falling.Look to knock at least £1500 off those prices.

Thanks. Really that much?

 

[maxman]

The 2.5 engine in the 23i is a sweet unit which revs eagerly.I know they only just develop just over 200 bhp ,driving the z4 you can make the most of it.

 

[Skella]

What’s drawing you to the 23i out of interest? (Not that there’s anything wrong with them) :?
Rob

Just wanted to test drive one. Loved it but I'm liking the idea of a 2L engine and remapping it.

Now is a good time to buy an e89 as prices are falling.Look to knock at least £1500 off those prices.

I tried with the first one but they wouldn't budge much. I may need some better negotiation skills.

Fourth time I've tried to reply to this thread but it keeps disappearing.