ZHP Steering Rack Mod

Anyone know if E9x steering racks would fit? Found out the E92 M3 has a 12.5:1 rack... which would be sweet. I don't see any on ebay, but I'm sure they're out there. Unfortunately the 335 has a 16:1 steering ratio, so that'd actually be a downgrade (I swear the steering felt pretty good when I drove one though)

Looks to be the same general design

Originally Posted by TerraPhantm

Anyone know if E9x steering racks would fit? Found out the E92 M3 has a 12.5:1 rack... which would be sweet. I don't see any on ebay, but I'm sure they're out there. Unfortunately the 335 has a 16:1 steering ratio, so that'd actually be a downgrade (I swear the steering felt pretty good when I drove one though)

just go wih the (Z4MC) Z4-M Coupe's rack, it's basically a direct swap and 12.8 ratio

i know Kevin (aka Kaiv) on the forum did it on his E46 M3 long ago

Originally Posted by Alex323Ci

just go wih the (Z4MC) Z4-M Coupe's rack, it's basically a direct swap and 12.8 ratio

i know Kevin (aka Kaiv) on the forum did it on his E46 M3 long ago

I can't find either on the market right now. But there were a lot more M3s made than Z4MCs so I think there's a much better chance of me finding an E9x M rack. If I could find a Z4MC rack (for a reasonable price of course) I'd buy it immediately.

32136757651 - I wanted to double check this was the correct part number to order. Also this will work on a E46 M3 correct? I assume so as it is a e46 but we all know what assume means.

You need to swap the tierods, but otherwise it's a direct fit. I will work on installing mine sometime this week.

Originally Posted by Alex323Ci

this is absolutely FALSE

it has long been proven and accepted (even among the zhp forums) the racks are the same in the post '01 330s.

you can wish all you want, but the fact about the rack is it's the same. please don't contribute to mis-information. there were many things posted about the 330 performance package in it's release that were for all those current 330s. this is where the mistake was made and myth created.

this however has nothing to do with the Original Posters rack, which was a pre-Sept 2001 build. therefore his rack swap is the later 330 rack and is infact different from the earliest 330s. so yes he would feel a difference upgrading to the changeover 330 rack & pinion

+1

This reminds me of when SeanC was claiming that ZHP control arms had special geometry. We argued back and forth for pages on another thread and he sweared he'd prove himself to be correct. He never did. And he's been active as of two days ago.

Wild wild claims from ZHP dreamland.

Originally Posted by TerraPhantm

You need to swap the tierods, but otherwise it's a direct fit. I will work on installing mine sometime this week.

By chance do you have the tie rod part numbers? Also why do you need to change tie rods? Isn't that a universal part?

In for M3 ZCP Rack

So what's the best rack to put on the e46?
I have a 2000 328i. Do I have the slow rack?

I am almost thinking it would be easier to get a little quicker steering with the Comp/CSL M3 steering. Price is the same figuring adding in new tie rods.

Originally Posted by m3dragon

By chance do you have the tie rod part numbers? Also why do you need to change tie rods? Isn't that a universal part?

I don't off hand - check realOEM. It's not a universal part; M3 has M3-specific tie rods.

What I'm not sure about is if the inner half of the tierods are the same or not. The outer half w/ the ball joint definitely isn't. Unfortunately, while BMW sells the outer half separate, the inner half is only sold in combination - so it's impossible to know if the inner half is the same for M3s and non-Ms

I will just grab the complete tie rod assemblies from my existing rack.

Originally Posted by TerraPhantm

I don't off hand - check realOEM. It's not a universal part; M3 has M3-specific tie rods.

What I'm not sure about is if the inner half of the tierods are the same or not. The outer half w/ the ball joint definitely isn't. Unfortunately, while BMW sells the outer half separate, the inner half is only sold in combination - so it's impossible to know if the inner half is the same for M3s and non-Ms

I will just grab the complete tie rod assemblies from my existing rack.

Here are the other parts. Based on price it is actually more than a Comp/CSL rack cause the other parts needed.

http://www.realoem.com/bmw/showparts...40&hg=32&fg=25

This is starting to sound more cumbersome for a little more of a gain. I will just stick with ordering a commotion package steering rack. I saw you posting on the M3forums as well. I don't need the rack to be super twitchy just a little more than it is now. If I want twichy steering I will drive my 1M. You sneeze and you are driving out your side window HAHA.

Originally Posted by m3dragon

Here are the other parts. Based on price it is actually more than a Comp/CSL rack cause the other parts needed.

http://www.realoem.com/bmw/showparts...40&hg=32&fg=25

This is starting to sound more cumbersome for a little more of a gain. I will just stick with ordering a commotion package steering rack. I saw you posting on the M3forums as well. I don't need the rack to be super twitchy just a little more than it is now. If I want twichy steering I will drive my 1M. You sneeze and you are driving out your side window HAHA.

Pics of CSL

Originally Posted by sweetness

pics of csl

huh?

Originally Posted by m3dragon

Here are the other parts. Based on price it is actually more than a Comp/CSL rack cause the other parts needed.

http://www.realoem.com/bmw/showparts...40&hg=32&fg=25

This is starting to sound more cumbersome for a little more of a gain. I will just stick with ordering a commotion package steering rack. I saw you posting on the M3forums as well. I don't need the rack to be super twitchy just a little more than it is now. If I want twichy steering I will drive my 1M. You sneeze and you are driving out your side window HAHA.

I don't see where you're getting such a high price. I'm going to reuse my existing tie rods (realistically, I'd rather use the ones from my car which I know are still good than an unknown pair from a junkyard car). I might need a new boot if I can't get the original off in one piece.

So total cost to me should be about $250. Sure I'll need to replace the tie rods eventually, but that would have been the case had I not decided to upgrade the rack either.

Originally Posted by m3dragon

huh?

Your ride says CSL M3. Pics or didn't happen! You know this by now!

sorry price is the same as a Comp/CSL steering rack. Did not check what the discounted pricing was.
Price for the ZHP 330i steering rack is $1027. 2 sets of tie rods are $109 each.Total is $1245 to get all 3 parts need. Unless there is a part I missed?

Originally Posted by m3dragon

sorry price is the same as a Comp/CSL steering rack. Did not check what the discounted pricing was.
Price for the ZHP 330i steering rack is $1027. 2 sets of tie rods are $109 each.Total is $1245 to get all 3 parts need. Unless there is a part I missed?

Oh you're buying brand new? Then you might as well go with a Z4M Coupe rack... No way in hell I'd spend more than $500 on a steering rack swap

Originally Posted by Sweetness

Your ride says CSL M3. Pics or didn't happen! You know this by now!

Oh HAHA. Working on the build thread. Last few bits showing up in a week. Took me 10 years to figure out what I wanted to do to the car. Sucks cause it cost more now UG.

Originally Posted by m3dragon

Oh HAHA. Working on the build thread. Last few bits showing up in a week. Took me 10 years to figure out what I wanted to do to the car. Sucks cause it cost more now UG.

Good Luck!


List of differences between the M3 E46 and the M3 CSL E46
Compiled by NZ_N3 with help from cslregister

Confirmed differences :
- Engine block (supposedly picked from the least flawed cast) – The blocks have the same part numbers as M3, Z4, but the full short block is a different part number 11007833675
- Engine head (exhaust valve and intake/exhaust cams - longer duration, same lift) – intake cam shaft 11317835041 exhaust cam shaft 11317835043 Exhaust Valve 11347833676 (30,5/5,95mm) – the valve springs are exactly the same
- Intake plenum (carbon airbox as we like to call it) Air Collector 11617833496 filter 13727838625 The other half of the carbon box: 11617833497 and control unit 11617833498 all the other ducting 11617833646; 11617833645; 11617833648; 13717896774 intake grill 51117895883
- Extractors/Headers (same as post 2005 M3s and Z4) 11627833500; 11627833643
- Cat converter (200 cell) 18307833673
- X pipe, resonators (thinner material - slightly lighter) 18107833503
- Rear muffler - slightly lighter 18107833504
- Different ECU - 25% more capacity 12147837328; 12147834982
- Different SMG control unit program 23607837731
- Pseudo Alpha N engine management (delete of MAF, but still runs a MAP sensor, and air temp sensor 13621739510- debate as to whether this is just for idle control however) MAP sensor part number 13627833561
- Different traction control system with M track mode on steering wheel (much like the DCT mode in new E9X series)
-Different ABS control program
- Shorter steering ratio 14.5:1 (compared with 15.4:1 on M3) 32132282647 (same steering rack as the M3 CS)
- Front bumper (carbon fiber with incorporate bumper support) silver grey 51117896820 Sapphire Black 51117895950
- Roof (carbon fiber) 41007895382;
- Rear diffuser (carbon fiber) - the bumper is the same as M3 so is the carrier – silver grey 51127896832 Sapphire Black 51127895985
- Boot lid (Moulded sheet plastic - it's not fiberglass people, it's much harder and more rigid) 41007895884
- Rolled rear fenders to accommodate wider rear rims. Bare Full Body Skeleton for CSL 41007895934 (part numbers for the rear fenders are the same as M3, but the CSL comes from the factory with ROLLED rear fenders)
- Different wheels (NOT magnesium, cast aluminium) made by BBS 36112282650; 36112282999
- Suspension and spring (sachs, shorter spring and different damper and rebound rates) fronts 31312282505; 31312282506 front bump stop 31332282508 rear 33522282507, rear mount disc (CSL specific) 33532282503; bumper stop 33532282509
- different rear lower arm - aluminium with spherical joint 33322283074
- different front king pin (hub) for wider front track 31212282855; 31212282856
- larger front sway bar (hollow) 30.8mm 31352282655
- larger rear sway bar 22.5mm 33552282681
- larger front brakes (345mm) 34112282445; 34112282446 brake carrier 34112282619
- larger rear brake caliper piston 34212282857; 34212282858 (same as M3 CS)
- Pilot sport Cup Tyres 85452536738; 85452536740
- Lighter rear glass 51317895441
- Recaro SPG Type front seats 52100031830; 52100031831; rails 52107895957; 52107895958
- Lighter rear seats (4 seater rather than 5) 52207896809; 52207896800 rear console 52207896297
- Lightweight through load facility 52207896929; 52207896930; 52207896807; 52207896808
- Paper/Honey combe boot floor COVER (yes the infamous cardboard floor) 51477895990
- Carbon door cards and rear panel 51417895581; 51417895582; 51437895579; 51437895580 Door handles 51417896919; 51417896920
- Carbon centre console 51167896359
- Alcantara steering wheel 32342282502
- Alcantara hand brake lever 34412282662
- 4 rather than 6(or 8 if equiped) airbags
- NO INTERIOR SOUND DEADENING
- No bonnet heat shield (same aluminium bonnet as M3)
- Optional Radio and aircon
- Lighter battery (same as the Mini Cooper S battery) 61218377139
- Lighter microfilter housing (bottom part 64 31 7 895 937 1.050 kg, housing 64 31 7 895 939 1.630 kg)

Unconfirmed differences:
- less under carriage undercoating
- extra welding points to chassis