Another Atacama Yellow E89 Build Thread (UK)

pbondar

Specialist
May 30, 2020
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So I thought I'd start to document my jourmey on taking a bog stock 35is to the next level.

Having done the journey with a AY E89 20i Msport Auto, some parts of this journey will be very similar.

However, as I have been on this journey before, in some cases, for the sake of change and variety I've altered /sourced differnt parts.

So the 2011 35is with 50k miles and 4 previous owners came to me after lurking on various sites watching the inflated sales price come down from £23k to around £19k.

The car had a part BMW , part low grade Indy service history and looked like it had been garaged most of its life and not used hard.

It was fairly 'fully loaded' with most UK options, Idrive, extended USB/Blutooth, electrically heated/adjustable eats, PDC, 14 speaker DSP HiFi etc

First thing was to swap the Zito 935s running GY Asy 5 235/40 18 and 265/35 18 from the 20o to the 35is.

Ride and handling much better..still very disappointed in the adaptive suspension especially 2 up.

Popped in some high intensity LEDS in the DRLs and fitted an offical set of BMW black grills.

Next a walnut blast to take out about 1mm of very hardened carbon on the intake ports, fresh NGK 1 stage colder plugs and fresh air filter.

Then a baseline dyno run (before which number 2 coil went south), then a MHD stage 1+ re-map by myself and a second dyno run..moving from around 345BHP to 390 BHP and torque up from 500 to 550 nm (UK tends to use crank BHP and I've used this dyno a lot)
 

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pbondar

Specialist
May 30, 2020
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So I found a good tech in my local town (he used to twirl the spanners for some of the fastest Isle of Man racers!

I've entrusted him with a lot of the work..

We are now about 75% there.

Work so far has been.

  1. Remove 6 pot BMW Performance Brake kit (Bembo) from my 20i and fit to 35is
  2. Remove the matching drilled n vented 35is rear discs and calipers in Phoenix Gold from 20i to 35is
  3. Fit Ohlins Road and Track to 35is (the fact that the rears are NOT coilovers through us for a while)
  4. Move Wagner Evo FMIC from 20i to 35is
  5. Fit VSRF de-cat down pipes (seems to need a bit of a cut n shut on the exhaust system to take the preload out of the system)
  6. Bought some re-furb BMW 437M alloys to be mated to Michelin Pilot Sport 4S in 235/35 19 and 275/30 19
  7. Fit new Index 12 injectors and new coils at the same time
  8. Fit Quaife LSD
  9. Fit M3 Steering linkages, rear M3 RTABs and H&R ARBs

Seperately I've fitted some Eton mid range speakers to replace the 6 mid range speakers on the 14 speaker DSP option setup

I've done the gloss black version of the LCI side repeaters.

Still to do

Repaint rear MSport valance so rear is yellow, black, yellow rather than yellow, yellow, black.

Fit n paint rear boot C/F spoiler (when it finishes its 9 week so far journey from China)

Paint rear roll over covers gloss black

Fit rest of Audison/ Rockford speakers and install Audiotec Fischer Match 10 DSP and Helix SDM 125 MOST to Audiotec interface unit.
 

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pbondar

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May 30, 2020
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A few pics of the brakes before they got grubby...
 

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fmorelli

Lieutenant General
Staff member
Aug 11, 2017
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Ride
E89 Z4 35i, F10 535d
First thing was to swap the Zito 935s running GY Asy 5 235/40 18 and 265/35 18 from the 20o to the 35is.

Ride and handling much better..still very disappointed in the adaptive suspension especially 2 up.

If you have handling issues (I see you are moving to Öhlins) let me know, and I'll see if I can lend a hand remotely. I'm plugged in with Barry Battle @ 3DM Suspensions that has done a lot of development for products for Öhlins USA. He did all the development and tuning work on my Z4 ... it was a development car for him.
 

pbondar

Specialist
May 30, 2020
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If you have handling issues (I see you are moving to Öhlins) let me know, and I'll see if I can lend a hand remotely. I'm plugged in with Barry Battle @ 3DM Suspensions that has done a lot of development for products for Öhlins USA. He did all the development and tuning work on my Z4 ... it was a development car for him.
Hello Filipo, thanks for your kind offer..I'm waiting for the tech to finish installing all the new 'toys' and we will see how she feels..once I've got an assessment of the before and after and the benchmark that was my well sorted 20i then I'll come back with observations and maybe you can help me then? best Peter
 

pbondar

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May 30, 2020
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So this stage of updates and upgrades nearly completed..FWIW don't buy Hella branded coils..they don't fit..to fat to stay in the spark plug tunnel!

2021-11-25 10.48.53 compressed.jpg



New index 12 injectors in, 6 pot Brembo brakes in , Ohlins R+T in, VSRF catless downpipes in (required a bit of exhaust system trimming to fit), H&R ARBs, M3 RTABs/steering linkages/ Upgraded bushes in top M3 steering arm, Wagner EVO 1 in, just going to fit NGK coils to replace duff Hella ones. MHD stage2+ map applied, xHP stage 2 applied, coded adaptive dampers off, coded performance brake on, fitted 437Ms with 235/35 19 and 275/30 Michelin PS4S..
 

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pbondar

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May 30, 2020
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New carbon fibre rear spoiler arrived today..3 months since it was ordered, exactly..good job it was air freighted, might try sea freight next time..quality looks very good, not tried a fit yet, seems a pity to colour match it..but that's where its going next..
 

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pbondar

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May 30, 2020
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Pondering whether to paint the front lower cross bar of the MSport nose black to change the optical apperance? Thoughts anyone? Here's my friends Valencia Orange before n after..
 

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