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914World.com _ 914World Garage _ Axle angle

Posted by: partwerks Sep 8 2019, 05:21 PM

From my trans to my wheels, my axles go uphill at a 10 degree slope. Is that too much?

They angle forward a bit also, but it don't appear to be that much.

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Posted by: bdstone914 Sep 9 2019, 05:31 AM

That rear end must be sitting very low. Badly gagged springs?

Posted by: 914Sixer Sep 9 2019, 05:56 AM

Looks like aftermarket springs with spacer blocks.

Posted by: partwerks Sep 9 2019, 06:04 AM

So maybe need new springs?

Posted by: bdstone914 Sep 9 2019, 06:34 AM

QUOTE
@http://www.914world.com/bbs2/index.php?showuser=6787


So maybe need new springs?


Hard to say. How does the car sit ? Cant see that much. What kind of shocks? They might be Bilstein with adjustable perches. If so adjust them upward. I dont see spacer blocks. Can you take a good picture with the flash on to show the spring?

Posted by: wndsrfr Sep 9 2019, 06:35 AM

QUOTE(914Sixer @ Sep 9 2019, 03:56 AM) *

Looks like aftermarket springs with spacer blocks.

Check to see if there's another notch to push the perch up another inch....

Posted by: Andyrew Sep 9 2019, 09:17 AM

Can we see some pics of your trans mount and the spacer block on the trans side?

The v8 conversions move the trans back 1.5" and your forward to back looks good. The angle from the squat could be because the bolts arent tight enough and therefore the transmission is hanging down or the back is simply too low. which judging from the angle of the trailing arm is not the case.


Lets see a profile of the car as it sits.

Posted by: SirAndy Sep 9 2019, 10:16 AM

Actually looks like the transmission is much lower with that conversion.
The problem is that with an angle like that at rest, it's only going to get worse under load.

I'd be worried about the CVs falling apart if you put some serious power through them.
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Posted by: Andyrew Sep 9 2019, 10:19 AM

Ya I think the trans is falling off the hangers. Pretty common on the V8 conversions.

Most conversions put the trans in the stock location just moved back.

Posted by: partwerks Sep 9 2019, 05:23 PM

Maintenace guy at work, and I made a new trans mount on the back to replace the one the mechanic made that was too weak, and one side broke.
I think he reused the old Subie WRX engine bar. The adapter plate I had made at kitcarchassis.com.

Hopefully pictures will help.

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Posted by: SirAndy Sep 9 2019, 05:29 PM

Your transmission should be a good 2" higher in the chassis, there's plenty of room above.
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Posted by: SirAndy Sep 9 2019, 05:32 PM

Also, why are your adjustable shocks all the way up?

How short are those springs? They better be tiny ...
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Posted by: partwerks Sep 9 2019, 05:36 PM

QUOTE(SirAndy @ Sep 9 2019, 03:32 PM) *

Also, why are your adjustable shocks all the way up?

How short are those springs? They better be tiny ...
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Probably cuz when ya pay someone to work on it, I would expect them to know more about it than me, but from lots of things I seen. That wasn't always the case.

Are they suppose to be in a different position.

Posted by: SirAndy Sep 9 2019, 06:21 PM

QUOTE(partwerks @ Sep 9 2019, 04:36 PM) *

QUOTE(SirAndy @ Sep 9 2019, 03:32 PM) *

Also, why are your adjustable shocks all the way up?
How short are those springs? They better be tiny ...
unsure.gif

Probably cuz when ya pay someone to work on it, I would expect them to know more about it than me, but from lots of things I seen. That wasn't always the case.
Are they suppose to be in a different position.

Those springs look waaaay too short, which is why the threaded collar is located on top of the highest groove and then the spring perch is on top of the collar.

I wouldn't be surprised if the part of the collar where the perch sits right now is actually above the shock body and thus has limited support.

Hopefully that's just the angle of the picture though ...
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Posted by: partwerks Sep 9 2019, 07:14 PM

QUOTE(SirAndy @ Sep 9 2019, 04:21 PM) *

QUOTE(partwerks @ Sep 9 2019, 04:36 PM) *

QUOTE(SirAndy @ Sep 9 2019, 03:32 PM) *

Also, why are your adjustable shocks all the way up?
How short are those springs? They better be tiny ...
unsure.gif

Probably cuz when ya pay someone to work on it, I would expect them to know more about it than me, but from lots of things I seen. That wasn't always the case.
Are they suppose to be in a different position.

Those springs look waaaay too short, which is why the threaded collar is located on top of the highest groove and then the spring perch is on top of the collar.

I wouldn't be surprised if the part of the collar where the perch sits right now is actually above the shock body and thus has limited support.

Hopefully that's just the angle of the picture though ...
blink.gif


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Posted by: BIGKAT_83 Sep 9 2019, 07:22 PM

Its going to be real low when those rear mounts pull thru. They need the factory washer on the top side of the bolt.

Posted by: partwerks Sep 9 2019, 07:27 PM

QUOTE(BIGKAT_83 @ Sep 9 2019, 05:22 PM) *

Its going to be real low when those rear mounts pull thru. They need the factory washer on the top side of the bolt.



I just have smaller flat washers on the upper trans mounts, and so are you saying that I need washers with a bigger outside diameter so that it doesn't sag?

Posted by: BIGKAT_83 Sep 9 2019, 08:03 PM

This is what you need on the top of mount.
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This won't do any thing for your "sag" the way it is now if the rubber broke your whole engine and transaxle would fall out.

Fix this before you drive the car

Posted by: partwerks Sep 9 2019, 08:07 PM

QUOTE(BIGKAT_83 @ Sep 9 2019, 06:03 PM) *

This is what you need on the top of mount.
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Do I need the round one also, or just the rectangular one on top?

Posted by: partwerks Sep 10 2019, 06:06 PM

QUOTE(SirAndy @ Sep 9 2019, 03:29 PM) *

Your transmission should be a good 2" higher in the chassis, there's plenty of room above.
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Would there be some kind of adjustment to allow the trans to be moved up higher, or how does that work with it being attached to the adapter plate. I had it made at kitcarchassis.com

Posted by: Andyrew Sep 10 2019, 07:53 PM

QUOTE(partwerks @ Sep 9 2019, 07:07 PM) *

QUOTE(BIGKAT_83 @ Sep 9 2019, 06:03 PM) *

This is what you need on the top of mount.
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Do I need the round one also, or just the rectangular one on top?

It's one piece.

Posted by: euro911 Sep 10 2019, 08:35 PM

This is what it should look like

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Posted by: partwerks Sep 11 2019, 08:30 PM

QUOTE(SirAndy @ Sep 9 2019, 03:29 PM) *

Your transmission should be a good 2" higher in the chassis, there's plenty of room above.
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Not sure how to do that with it being tied into the adapter plate?

Posted by: euro911 Sep 11 2019, 11:09 PM

I just noticed you're not running a 901 trans ... I see your dilemma now

Posted by: partwerks Sep 12 2019, 06:05 AM

I wonder if the adapter plate could be made with an offset, so it could come up higher?

Posted by: Andyrew Sep 12 2019, 09:02 AM

QUOTE(partwerks @ Sep 12 2019, 05:05 AM) *

I wonder if the adapter plate could be made with an offset, so it could come up higher?

Input shaft on the trans can't move in relation to the position of the engine, so no.

The steel plate mounting the trans to the trans mounts could be bent to raise the back of the trans...

How low is your car? Raising up the rear would be the easiest option.

Posted by: euro911 Sep 12 2019, 01:57 PM

QUOTE(partwerks @ Sep 8 2019, 04:21 PM) *
From my trans to my wheels, my axles go uphill at a 10 degree slope. Is that too much?

They angle forward a bit also, but it don't appear to be that much.

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Something else just came to mind idea.gif ... I'm wondering if you'll need to shorten the axles once you raise the trans upward confused24.gif

What happens when you lift the car? ... is there any binding on the axles when the trailing arms move downward?

popcorn[1].gif

Posted by: partwerks Sep 13 2019, 08:51 AM

QUOTE(euro911 @ Sep 12 2019, 11:57 AM) *

QUOTE(partwerks @ Sep 8 2019, 04:21 PM) *
From my trans to my wheels, my axles go uphill at a 10 degree slope. Is that too much?

They angle forward a bit also, but it don't appear to be that much.

Attached Image

Something else just came to mind idea.gif ... I'm wondering if you'll need to shorten the axles once you raise the trans upward confused24.gif

What happens when you lift the car? ... is there any binding on the axles when the trailing arms move downward?

popcorn[1].gif


I haven't checked, but custom axles were made for it.
I have a Craig Davies remote WP, and wonder if the engine could still be moved ahead a tweek, then maybe could raise it up some? Right now the back is about a thumb's width at the back of the engine bay, towards the top from hitting. I would imagine if I was able to move the trans up, to some degree, I would have to take some off the length of the axles.

Posted by: euro911 Sep 13 2019, 12:40 PM

QUOTE(partwerks @ Sep 12 2019, 05:05 AM) *
I wonder if the adapter plate could be made with an offset, so it could come up higher?
Possibly.

Hard to tell how much 'wiggle room' you've got from the pic angles we're seeing. How much room is there between the sides of the trans in relation to the mounting points?

Also, measure the clearance above the trans to determine how much it can move up.

See if something like this will work for you. Modify the existing bracket to lower the mounting points on each side of the trans while leaving enough clearance that the top of the trans doesn't hit the trunk floor.

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Posted by: partwerks Sep 13 2019, 01:35 PM

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Looks like at the top of that adapter plate, there would be at least 1 1/2"-1 3/4" it could go up yet. Just eyeballing it.

Got my top plates in for the mounts, but no difference than before, other than won't pull through.


Posted by: partwerks Sep 13 2019, 07:34 PM

These shocks and springs are at least 13 years old. I don't know how long before that, the previous owner had them, and so maybe it is time to change them out?

Posted by: Andyrew Sep 13 2019, 07:42 PM

QUOTE(partwerks @ Sep 13 2019, 06:34 PM) *

These shocks and springs are at least 13 years old. I don't know how long before that, the previous owner had them, and so maybe it is time to change them out?

Can we get a pic of the side of the car to see how low you are?

Posted by: partwerks Sep 13 2019, 07:53 PM

QUOTE(Andyrew @ Sep 13 2019, 05:42 PM) *

QUOTE(partwerks @ Sep 13 2019, 06:34 PM) *

These shocks and springs are at least 13 years old. I don't know how long before that, the previous owner had them, and so maybe it is time to change them out?

Can we get a pic of the side of the car to see how low you are?


I will make a note of that for Saturday.

Posted by: partwerks Sep 15 2019, 05:47 PM



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Posted by: Andyrew Sep 15 2019, 08:15 PM

It's low but I've seen lower. I say modify transmission mount.

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