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Should front subframe be centered?

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Old Oct 7, 2021 | 08:49 PM
  #16  
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From: Houston
check with the guys here
https://www.evolutionm.net/forums/ma...&type%5B0%5D=3
if you use ebay or amazon, even some salvage yards, you can return it if you dont like it.
goodluck
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Old Oct 7, 2021 | 08:55 PM
  #17  
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From: Portland, Or
Originally Posted by EJEvo
Just to follow up on this thread, the guy who is working on my Evo found that the steering rack allows more turns in one direction than the other, contributing to the issue. It seems that the steering rack has some issues, and needs to be replaced. The BIG problem with that is that Mitsubishi no longer offers the steering rack for the car (MIT-MR594661), and we can't find one from a reputable source. I have this sinking feeling it may be time to move on from this long-loved vehicle and find something newer for the track.
The rack is highly unlikely to be bad. They dont just skip teeth internally. If your wheel turns further one way than the other then its more likely your steering column is attached some amount of splines off. SO your steering wheel will then move further one direction than the other. And conversely you will end up tightening one steering link (tie rod) and extending the other so the wheels are straight when the steering wheel is centered.
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Old Oct 7, 2021 | 09:01 PM
  #18  
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From: Houston
This one looks like it has no front damage
https://imageappky.car-part.com/imag...%23%20201007#1
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Old Oct 12, 2021 | 09:10 PM
  #19  
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Can I ask one of the Evo owners in here a favor? I'm looking for precisely how many turns lock to lock for the Evo 8. I've found some posts on here that claim 2 turns lock to lock, but want to verify this. Also want to know how many turns just to one side before you hit lock. If my issue was just the steering is connected off center, then it should just be the total number of turns lock to lock are the same, but they are unevenly distributed between left and right.
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Old Oct 15, 2021 | 02:15 PM
  #20  
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I want to help but my subframe is not bolted up. TC is atleast 2 weeks away
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Old Oct 15, 2021 | 02:40 PM
  #21  
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From: Portland, Or
Originally Posted by EJEvo
Can I ask one of the Evo owners in here a favor? I'm looking for precisely how many turns lock to lock for the Evo 8. I've found some posts on here that claim 2 turns lock to lock, but want to verify this. Also want to know how many turns just to one side before you hit lock. If my issue was just the steering is connected off center, then it should just be the total number of turns lock to lock are the same, but they are unevenly distributed between left and right.
As I said before, this is almost certainly the case. Total turns is in the 2.25 range. The steering column can be put on off any number of teeth, mine in fact is off by 1 and I can turn right about 15deg further than left.
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Old Oct 15, 2021 | 06:48 PM
  #22  
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From: Albany NY
Originally Posted by ViciousLSD
I want to help but my subframe is not bolted up. TC is atleast 2 weeks away
Thanks - I appreciate the thought.
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Old Oct 15, 2021 | 06:50 PM
  #23  
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Originally Posted by Dallas J
As I said before, this is almost certainly the case. Total turns is in the 2.25 range. The steering column can be put on off any number of teeth, mine in fact is off by 1 and I can turn right about 15deg further than left.
Thanks - I appreciate the info! I'll pass this along to my mechanic.
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Old Oct 15, 2021 | 07:16 PM
  #24  
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From: Albany NY
Originally Posted by Dallas J
As I said before, this is almost certainly the case. Total turns is in the 2.25 range. The steering column can be put on off any number of teeth, mine in fact is off by 1 and I can turn right about 15deg further than left.
So, in a text exchange just now with the shop who is tackling this for me, he says that's what they did - disconnected and recentered the steering, but it still does what it did prior to recentering, so it sounds like a stop is gone or something.
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Old Oct 15, 2021 | 07:32 PM
  #25  
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Ok, so heres what happens.

Did they just point the wheels straight and reconnect the steering column? Cause that would just put it in the same position it started. Typically you'll see from the alignment, and its super easy to check, that one side is threaded in further than the other. If you were aligned and the car drove straight with the wheel not offset, you will see a difference in exposed threads at the tie rod.

I just checked my car and the difference left to right is ~5.5mm (left having more threads). This is because my column is off by 1 tooth but I just don't bother to fix it cause it doesn't matter that much and its a pain to get perfect. But if it was off 2 teeth, I would definitely be adjusting to get +/- 1 tooth from center.
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Old Oct 15, 2021 | 08:58 PM
  #26  
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From: Albany NY
Dallas J: When they initially put it on the lift, there was a large disparity in exposed threads between the sides - 6 vs 14 (don't recall which side was which). This was noticed while the front subframe shift to the passenger side was noted. So after attempting to recenter the subframe, the other part of the plan was to even out the tie rod adjustments and then recenter the steering. The tie rod adjustments were done but the situation with the steering turning noticeably more in one direction than the other, resulting in contact of the tire with the frame rail, remains.

PS - really appreciate your time and thoughts you're sharing here.
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Old Oct 15, 2021 | 10:07 PM
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From: Houston
did you remove and re-center the steering wheel after centering the subframe?
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Old Oct 15, 2021 | 10:13 PM
  #28  
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From: Albany NY
I didn't - that's beyond my abilities - but I believe the shop that is working on this did the subframe first, and then did the steering re-centering.
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Old Oct 15, 2021 | 10:29 PM
  #29  
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From: Houston
Originally Posted by EJEvo
sounds like a stop is gone or something.
Just curious, does it 'thud'/sound/feel the same when you hit max lock? if not then nothing is missing no?
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Old Oct 15, 2021 | 10:45 PM
  #30  
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From: Albany NY
Originally Posted by ViciousLSD
Just curious, does it 'thud'/sound/feel the same when you hit max lock? if not then nothing is missing no?
No - feels normal. I drove it to a 2nd place podium in Unlimited 2 at the SCCA Time Trial National Tour event @ Palmer Motorsports Park over the July 4th weekend.

It's just since August 2020, after that 180 spin I had at an autocross that destroyed a new A7, my oversized autox wheel & tire combo rub fiercely. Track wheel & tire combo seem to be fine, but I ran 15mm H&R hub centric spacers on the fronts as a safety blanket until I could get the situation identified.
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