E89 4 pot or 6?

[R60BBA]

N52B30 is one of the best all round performance modern BMW 6 cylinder N/A engines.

It won numerous awards.

As I said, although I now have a much more powerful and capable S54 engine, there are times when I miss the smoothness of that engine.

[Andyturbo2000]

23i six-pot sounds good...way too slow for a ‘sports’ car though

[Mr Tidy]

That's why they made the 30i!

[Jembo]

That's why they made the 30i!

& perfected it with a 3.2

[Mr Tidy]

Mr Tidy wrote: ↑Tue Oct 09, 2018 9:03 pm
That's why they made the 30i!


& perfected it with a 3.2

I'm yet to find out, and hopefully one day I might - but this is an E89 thread.

[Jembo]

Mr Tidy wrote: ↑Tue Oct 09, 2018 9:03 pm
That's why they made the 30i!


& perfected it with a 3.2

I'm yet to find out, and hopefully one day I might - but this is an E89 thread.

Come to a Kent meet next year & I’ll showcase the noise

[Mr Tidy]

Come to a Kent meet next year & I’ll showcase the noise

If you make it to the Black Swan on Sunday you can do it then!

But I have heard an E46 M3 being driven like it was stolen - it's spine-tingling.

[Twin Turbo]

^

Yes I completely agree, anyone that tells you the N20's can keep up with an N54 hasn't tried.
My 35i is stage 2+ with DP, intercooler and charge pipe. It eats E92 M3's for breakfast

This is a fairly heavily tuned Z4 35i beating quite a few cars in the drag strip!

(Rolling start at 50kph)


https://youtu.be/GqB7k5dac-o

Well, I was after a challenge anyone with a 35i/35is stock or modified and take them head to head - but no one fancied to take me on from this forum. However, every Z4 I played with, were unable to keep up. Especially no B roads.

A demonstration of my old 28i taking on M3:



And my fastest time:


However the 28i benefit was launch, big BHP cars struggle to get the power down on the drag strip - however if your reaching 400bhp - you may have got to the finish line before me. As I believe my N20 28i - still holds the fastest 1/4 mile time in the UK?

However where it would be more open, and were the 28i would have the advantage would be on a track, as there is little skill driving fast in an straight line - just look at the number of M4's all power but no control.

[Twin Turbo]

“N52B30 doesn’t need to be tuned“
If you want it to keep up with a mapped n20 it does
Rob

These cars aren’t about straight line speed.

But again, N52B30 supercharged would cruise past N20B20 tuned

NOPE -SORRY SO UNTRUE - obviously you did not experience a 300+BHP N20 Z4

[Twin Turbo]

N52B30 is one of the best all round performance modern BMW 6 cylinder N/A engines.

It won numerous awards.

As I said, although I now have a much more powerful and capable S54 engine, there are times when I miss the smoothness of that engine.

So did the N20, however the N52 is a bullet proof engine with a great sound - N20 is frugal, light and more tunerable

Get a supercharged N52 your looking circa 5K, spend 5K on a N20 - you be north of 300+ BHP, better breaks, suspension, and sill have change for 10 tracks days

[Twin Turbo]

My last zed was the 28i and I was very happy with that. Good performance, good value for money and running cost were also good.

Now I have the 6 cylinder 35is and all the goods turn to greats if you know what I mean.

Drive both and get the best you can afford. To be honest you will be happy with either, just depends on your priorities

agreed -

[R60BBA]

“N52B30 doesn’t need to be tuned“
If you want it to keep up with a mapped n20 it does
Rob

These cars aren’t about straight line speed.

But again, N52B30 supercharged would cruise past N20B20 tuned

NOPE -SORRY SO UNTRUE - obviously you did not experience a 300+BHP N20 Z4

These cars aren’t about straight line speed at all!

I’m happy to put this up in a poll on the forum to prove you otherwise.

Supercharged N52 will make 365BHP and destroy your remapped N20 buddy.

The numbers don’t lie.

[Twin Turbo]

These cars aren’t about straight line speed.

But again, N52B30 supercharged would cruise past N20B20 tuned

NOPE -SORRY SO UNTRUE - obviously you did not experience a 300+BHP N20 Z4

These cars aren’t about straight line speed at all!

I’m happy to put this up in a poll on the forum to prove you otherwise.

Supercharged N52 will make 365BHP and destroy your remapped N20 buddy.

The numbers don’t lie.

All I can quote is real life experience not theory, E86 is a better handling car than E89 from factory no question on that - the E89 from factory is quite sloppy, with poor suspension and RFT.

N52 with 365BHP it would be very close to call, you only have 50 BHP more power - but I made my E89 into an B road warrior and able to pull away from any Z4 I encountered. And I had the car for over 3 years, however.

If an N52 with suppercharger and modified suspension and breaks - then it could be a different story.

Peeps, may have opinions on theory or there personal preference - but I am coming from proven experience.

You say numbers don't lie, show me a Z4 doing a quicker 1/4 mile then - otherwise, keep in your bubble

However after I say all this, I upgraded to an N55 engine lol

[R60BBA]

NOPE -SORRY SO UNTRUE - obviously you did not experience a 300+BHP N20 Z4

These cars aren’t about straight line speed at all!

I’m happy to put this up in a poll on the forum to prove you otherwise.

Supercharged N52 will make 365BHP and destroy your remapped N20 buddy.

The numbers don’t lie.

All I can quote is real life experience not theory, E86 is a better handling car than E89 from factory no question on that - the E89 from factory is quite sloppy, with poor suspension and RFT.

N52 with 365BHP it would be very close to call, you only have 50 BHP more power - but I made my E89 into an B road warrior and able to pull away from any Z4 I encountered. And I had the car for over 3 years, however.

If an N52 with suppercharger and modified suspension and breaks - then it could be a different story.

Peeps, may have opinions on theory or there personal preference - but I am coming from proven experience.

However after I say all this, I upgraded to an N55 engine lol

You got a SIX CYLINDER N55...

End of!

[Nick9one1]

I'm yet to 1/4 mile mine, but a quick search suggests the 35i DCT can do a consistent 12.8 seconds on the strip with a stage 1 remap and FMIC.
Thats quite a bit quicker than the 28i's quickest at 13.57 secs.

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