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Go Back   E46Fanatics > E46 BMW > E46 Xi Forum

E46 Xi Forum
The E46 XI was produced from 01-05 in sedan and touring body styles. Powered by either a 2.5L inline 6 in the 325xi or a 3.0L inline 6 330xi. Discuss all thing about BMW AWD E46 'Xi' here.

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Old 10-07-2016, 01:13 PM   #41
apseagle
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My Ride: 02 325xi 5 speed
Quote:
Originally Posted by Simmsled View Post
So is there a parts list for this suspension upgrade?
It would be very helpful.

Loving this!
Read the first post in this thread:
http://forum.e46fanatics.com/showthread.php?t=1088219
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Old 10-07-2016, 01:21 PM   #42
apseagle
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After about 600 miles of daily driving on this suspension I think I will offer my final review. I love it. This would not be the package for a track junkie or parking lot racer, but for the performance minded daily driver, it is awesome. It does not lower the car much at all other than correcting the nose high situation on the Xi's. The shocks are stiffer than OEM, even in their softest settings, but not overly so. The car will still soak up rough roads very well and not jar your teeth out. Yet, even with that, throw in an emergency maneuver to avoid that texting teen and the car remains flat and composed.

While I never got to drive a factory fresh E46, this suspension upgrade makes the car feel like a new car. Suspension is tight and firm as well as quiet and compliant for daily driving. Suspension components are an improvement over the OEM Sachs units.

If you have an Xi that is a daily driver, road trip, and occasional canyon blaster..... basically a "one car has to do it all" rig, this suspension is top of the heap without completely destroying your wallet. If you want to lower it more than what I have in the photos, then this is not the right kit.
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Old 10-07-2016, 01:54 PM   #43
Rob43
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Quote:
Originally Posted by apseagle View Post
After about 600 miles of daily driving on this suspension I think I will offer my final review. I love it. This would not be the package for a track junkie or parking lot racer, but for the performance minded daily driver, it is awesome. It does not lower the car much at all other than correcting the nose high situation on the Xi's. The shocks are stiffer than OEM, even in their softest settings, but not overly so. The car will still soak up rough roads very well and not jar your teeth out. Yet, even with that, throw in an emergency maneuver to avoid that texting teen and the car remains flat and composed.

While I never got to drive a factory fresh E46, this suspension upgrade makes the car feel like a new car. Suspension is tight and firm as well as quiet and compliant for daily driving. Suspension components are an improvement over the OEM Sachs units.

If you have an Xi that is a daily driver, road trip, and occasional canyon blaster..... basically a "one car has to do it all" rig, this suspension is top of the heap without completely destroying your wallet. If you want to lower it more than what I have in the photos, then this is not the right kit.

Great review !

To everyone that reads this, keep in mind that "apseagle's" choice in overall spring drop was based on several factors including snow usage. His particular build used a spring package that lets his Xi Bimmer sit higher than other spring packages, so at the end of the day you can get almost any drop you like depending on options & budget.

Here's a picture* of a Xi Touring that's running my Rob43 suspension package on a different front & rear spring setup, as you can see it sits much lower. In this case the owner wanted it lower & wasn't as concerned with snow usage. In the end, virtually Any drop can be achieved....


Rob43


* As you can see the camera lens is about 3 feet off the ground to show as much wheel gap as
possible. If this picture was taken at roughly 6 feet high, it would appear to have almost no wheel gap.
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Rob #43 ITS/ITR/STU, BMW 325I, STU LAP RECORD
SUMMIT POINT WV 1:24:229 SCCA
(DynoDynamics https:vimeo.com/8486878 Dyno Video)
"Chance Favors The Prepared Mind"

I BUILD SUSPENSIONS (Consult) FROM MILD TO WILD FOR RWD & Xi E46's
Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I Know How To Fix The Rear "Bouncing" Problem On Your Cheap Coilovers Like: Jom RL FK SE & RK.

Last edited by Rob43; 10-07-2016 at 04:49 PM.
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Old 10-14-2016, 07:52 PM   #44
mr_y82
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Great thread! Nice detailed review; thanks apseagle (and of course Rob!!!)!!! Here's what mine xi looks like... It's on the stiff side, but not to the point that traction is compromised, even on rough local roads...



Also, apseagle, your reasoning for buying that specific car sounds a lot like my own story... This car was not even on my radar, but I stumbled into it when looking for something AWD and the previous owner is a really good guy and took great care of the car. Cheers!
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Last edited by mr_y82; 10-14-2016 at 07:57 PM.
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Old 10-19-2016, 01:16 PM   #45
apseagle
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One more post.....

Last Saturday afternoon I finally got a chance to take her for a longer drive, about 250 miles of twisty mountain roads from Boise to McCall, Idaho with some side diversions. Weather was in the high 40's and raining the entire time. Virtually no traffic on the road (a rare occasion for ID 55).

Being some of the first major rains we have had since, well, since May, the rain made the roads slick as they were washing off 5 months of road grime. Not snow and ice slick, but a bit skiddish when pushing the car a bit briskly. I played with the suspension adjustments and the front came back to rest on 1/2 turn in from full soft in the front, and #2 on the rear. Firm enough to communicate perfectly to me what the road was doing but not so stiff to be the least bit annoying.

The Xi was a pure joy. Got to feel how the X system worked and I am pleasantly impressed. This is my first all wheel drive performance car. My SUV's and trucks can not be compared. The system just worked without telling me it was there. That I liked. Going in a bit hard to a corner and intentionally messing up the balance of the car resulted in the system kicking in and pulling me through the corner. But other than that time, the car simply drove.

No squeaks, clunks, vibrations, noise or shudders could be sensed anywhere in the chassis. I also have to give my nod to the Conti Extreme Contact DWS06 tires. Yes, I know a set of Michelin SS or other higher performance tires would be much better in the dry, but I wanted one set of tires and wheels and I wanted them to last a fair mileage. They performed flawlessly. Quiet and smooth with more grip than I thought they would have. Will have to wait a bit longer to see how snow traction is.
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Old 10-22-2016, 10:32 AM   #46
mr_y82
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Sounds great! Having that 61% bias to the rear certainly makes these a lot more fun than "FWD based" AWD systems... Enjoy!
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H&R Sport Springs on Bilstein Struts; Valeo SMF, non-SA Clutch, CDV delete, and E60 Shifter w/ ZHP knob; Beisan System VANOS Seals...
Mtech-II Front Bumper (PO got bumped in parking lot!); Eagle Eye LED Tail Lights... Lots of PM!!!
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Old 10-22-2016, 11:21 AM   #47
xi46
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"Have your cake" suspension review

Quote:
Originally Posted by mr_y82 View Post
Sounds great! Having that 61% bias to the rear certainly makes these a lot more fun than "FWD based" AWD systems... Enjoy!

I know this is pedantic, but it's a 38/62 split front/rear. Definitely one of my favorite things about the xi compared to other AWD cars, especially in empty snow covered parking lots! Now I'm getting off topic, just excited for winter.

Edit: mixed up my numbers too

Last edited by xi46; 10-22-2016 at 11:21 AM.
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Old 10-22-2016, 04:05 PM   #48
Swiff
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BMW + other German AWD system is set up more like a truck 4x4 system giving more power ratio to the rear wheels (@ 40/60 split. )
ie. Motor ---> Transmission ---> Transfercase ---> Driveshafts split to front and rear differential ---> Axle



My MS Paint just for fun.



Other AWD vehicles are set up giving more of a power ratio to the front wheels (@60/40 split) Vehicles with viscous coupling (@50/50 split)
Transverse motor ---> Transmission ---> Main drive to Front axles. Tiny Diff like transfer case to rear driveshaft. ---> Rear differential ---> Rear axles



Subaru AWD system is unique also ... Its transfercase and front differential is built into the transmission making the system more symetrical. ( @50/50 split. )
Motor ---> *Front differential in transmission bell housing for front axle ---> Transmission ---> *Driveshaft to rear differential ---> rear axles

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Last edited by Swiff; 10-23-2016 at 01:28 AM.
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Old 10-25-2016, 04:27 PM   #49
mr_y82
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^cool

Quote:
Originally Posted by xi46 View Post
I know this is pedantic, but it's a 38/62 split front/rear. Definitely one of my favorite things about the xi compared to other AWD cars, especially in empty snow covered parking lots! Now I'm getting off topic, just excited for winter.

Edit: mixed up my numbers too
Ohh, weird... not sure where I read, or why I remembered it the other way... no worries, thanks for the clarification.
__________________
H&R Sport Springs on Bilstein Struts; Valeo SMF, non-SA Clutch, CDV delete, and E60 Shifter w/ ZHP knob; Beisan System VANOS Seals...
Mtech-II Front Bumper (PO got bumped in parking lot!); Eagle Eye LED Tail Lights... Lots of PM!!!
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