Ford V8 Discussion Discussion relating to getting the most out of your Ford-based V8 Miata's engine

Steering rack bump doesn't clear Oil Pan

Old 03-01-2019, 08:23 AM
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Default Steering rack bump doesn't clear Oil Pan

Hi Everyone,

Long time no post - This year, I decided to do the top end on my engine and get a bit more power. Trickflow Heads, Trickflow Intake. It's a 5.0, Martin's v8miata kit (Martin's modified oil pan, Martin modified k member, motor mounts). Much to my expectation, the after market intake is ridiculously large and high, and I'm trying to refit my engine, get it as low as possible to minimize the hood bump I will need. I am suspecting that I am the only one with this issue because my engine always seemed so much higher than what other people get away with.

Here's what i'm talking about. The bump on my steering rack right before the clamp that holds it down to the K-Member ends up under the oil pan... If I could move the rack over by 3/4 inch I could lower the engine by almost a 1/2 an inch, which is HUGE.... My question is how does yours end up? and what did I do wrong? It's been like this for years since i finished by build, I had to cut down the thermostat housing so that the coolant cap didn't hit the hood... something i noticed other people never seem to have to do






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Old 03-01-2019, 09:21 AM
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Can you move the motor toward the passenger side? Even 1/2 inch might allow you to drop it down. The motor mount plates are easy, the trans mount not so much, but its probably worth it
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Old 03-01-2019, 10:06 AM
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I tried pretty hard to do that back when I installed the motor, it would cause all kinds of other issues and look awkward, and even then i couldn't' get quite enough clearance... I'm still wondering if this is how it was meant to be? or do most people have enough clearance... was yours like this? maybe my rack is weird? I have the same Martin kit that built 100s of ford miatas
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Old 03-01-2019, 11:11 AM
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Grind the bump? Lightly bash the pan? (not my 1st choice). It's probably not unusual to find some discrepancies between builds. Although mine is not a Martin build. My first choice would be to move the motor over. How does it look awkward? I have 2 that are offset as much as possible, and it looks good to me
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Old 03-01-2019, 01:17 PM
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Well - I think it might have looked awkward because I didn't move the trans mount.. It will only go so far though, if you look this picture, you can see where the pan comes down into the K member, the areas indicated there's probably less than 1/8 of an each of clearance.. not much room to go side to side.. so that may not be possible. I may have to follow your other recommendations..

I am still curious to find out if anyone using Martin's kit has found this problem though - I'm starting to think it's just bad luck.. and i'll just have to deal with it! but that's ok!

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Old 03-01-2019, 02:45 PM
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I ground the bump on mine. Tight clearance, but didn't rub.
TM
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Old 03-01-2019, 03:07 PM
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Originally Posted by topdownfun View Post
I ground the bump on mine. Tight clearance, but didn't rub.
TM
I think that's what I will do - I was scared to trash the rack if i did that.. no problems to report?
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Old 03-01-2019, 04:03 PM
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No problems in 9 years and 24k miles. In a couple of weeks I can probably take a photo if you need it. The car was parted out after the accident and it's one of the few pieces left, but it's in a place where I can't get to it right now.
Regards,
TM
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Old 03-02-2019, 05:53 AM
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Yeah, I ground my rack as well for clearance.
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Old 03-02-2019, 10:06 PM
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I also ground mine down, and it’s a manual rack which is apparently smaller than the powered rack.
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Old 03-03-2019, 07:00 AM
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I ground mine down too. I also trimmed the spot weld flange on the k-member where the arrows are in your last pic.
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Old 03-06-2019, 12:08 PM
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Everyone - Thank you so much for the feedback - I'll be grinding mine as well - I'll report back and post pictures when done.
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Old 03-06-2019, 01:40 PM
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I ground my rack, too. I also ground down the upper flange on the retaining strap.

FYI get rid of the Fram filter and use a Motorcraft FL-1A. Over the years I have resolved hundreds of customers low oil pressure issues by doing so.
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Old 03-10-2019, 11:57 AM
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I had to grind mine also.
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