My Indecisive 4.0 V8 1UZ-FE Project

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toxo
Posting Freak

4,843

27-06-2020, 12:26 PM

#421

I'm planning on lopping those engine mount bases off and replacing them with some box section. From the outside of 1 'bar' on the subframe to the outside of the other is 110mm, so I think some 100mm wide box with a chunk taken out of each corner should be perfect. I'm not sure whether to use 100x100 box or 100x50 box. 100x50 would be loads easier and fit better around the sump, but I'm concerned about only 50mm of contact between the box and the subframe. If I had to use 100x100 I'd still have to nibble a corner off, and that might weaken it so much that I might as well use 100x50... dunno which to use (or if that even makes sense). TBH it's a very smooth engine and being a V8 doesn't have any balance issues or anything so it's only **** gear changes that are going to stress the engine mounts.

toxo

27-06-2020, 12:26 PM #421

FirebirdPhil
Posting Freak

7,101

27-06-2020, 12:35 PM

#422

100x50 IMHO, if in doubt you could always strengthen the inside with a gusset plate or two. The engine is as smooth as a Jag V8 - that is praise indeed!!

"Life's goal is not to arrive safely at the grave in a well preserved body. But, rather to skid in sideways........
totally worn out and broken, shouting 'Holy ****, WHAT A RIDE!'"

FirebirdPhil

27-06-2020, 12:35 PM #422

100x50 IMHO, if in doubt you could always strengthen the inside with a gusset plate or two. The engine is as smooth as a Jag V8 - that is praise indeed!!

"Life's goal is not to arrive safely at the grave in a well preserved body. But, rather to skid in sideways........
totally worn out and broken, shouting 'Holy ****, WHAT A RIDE!'"

Sparkystav
Administrator

14,683

27-06-2020, 12:37 PM

#423

I think 100x50 with a little extra bracing at the ends should do it mate!

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Sparkystav

27-06-2020, 12:37 PM #423

I think 100x50 with a little extra bracing at the ends should do it mate!

Read my thread here: The Evolution of my Turbo Lexus from NA-Supercharged-Twin Turbo-Massive Single
Please leave your comments.

OutlawJapClub Admin Team

toxo
Posting Freak

4,843

01-07-2020, 01:10 AM

#424

This is my engine mount idea. The tube section in dashed lines is the tech2 subframe, that already exists. I'll put the box on its end and cut some notches out of the bottom so it sits neatly on the tube frame. Then cut another section out of the box and plonk it on top, with those notches to locate it and stop it moving about prior to being welded.

[Image: Engine-Mount-Idea.jpg]

It's probably not that clear but I know what I'm doing in my head!

toxo

01-07-2020, 01:10 AM #424

sprinter2012
Posting Freak

2,484

01-07-2020, 02:44 AM

#425

Good progress! Engine mount looks fine, if you could get the edges of the box profiled to match the tube that would be better though. And if you make the plate slightly narrower than the box to create a fillet weld around the top it will be much stronger too. (probably weld inside and outside to be safe)

EDIT: Also, we use 3mm 100x50 RHS all the time here so could probably make them for you, or at the very least give you some material to get machined yourself.

Edited 12-08-2013, 12:26 PM by sprinter2012.

sprinter2012

01-07-2020, 02:44 AM #425

toxo
Posting Freak

4,843

01-07-2020, 02:54 AM

#426

Got some 5mm 100x50 which should be here today... Will be having a go tonight with the angle grinder! I don't really have that many tools for working with metal so it will be an interesting task

toxo

01-07-2020, 02:54 AM #426

Got some 5mm 100x50 which should be here today... Will be having a go tonight with the angle grinder! I don't really have that many tools for working with metal so it will be an interesting task

sprinter2012
Posting Freak

2,484

01-07-2020, 03:00 AM

#427

Good stuff, if the angle grinder doesn't give a good enough finish I can just stick a chunk on the mill here, would take a couple of minutes to mill across those cutouts.

sprinter2012

01-07-2020, 03:00 AM #427

Good stuff, if the angle grinder doesn't give a good enough finish I can just stick a chunk on the mill here, would take a couple of minutes to mill across those cutouts.

toxo
Posting Freak

4,843

02-07-2020, 05:56 AM

#428

Well I didn't get a chance last night as the box hasn't turned up yet. Did some more fitment tests having ground the JZ mounts off the subframe:

[Image: 1001258_10151817556696224_1956611261_n.jpg]

[Image: 1001258_10151817556696224_1956611261_n.jpg]

With those out of the way I could drop the block into the right place for the first time, to discover that the subframe is slightly too narrow (only a few mm) for the UZ sump pan - I guess the JZ sump pan is not as wide!

We also stuck the heads back on the test block briefly - the passenger side hits the ABS block and a fusebox, which were both going anyway. Driver's side hits the brake booster and clutch master though!! Pedal box time?

toxo

02-07-2020, 05:56 AM #428

Well I didn't get a chance last night as the box hasn't turned up yet. Did some more fitment tests having ground the JZ mounts off the subframe:

[Image: 1001258_10151817556696224_1956611261_n.jpg]

With those out of the way I could drop the block into the right place for the first time, to discover that the subframe is slightly too narrow (only a few mm) for the UZ sump pan - I guess the JZ sump pan is not as wide!

We also stuck the heads back on the test block briefly - the passenger side hits the ABS block and a fusebox, which were both going anyway. Driver's side hits the brake booster and clutch master though!! Pedal box time?

toxo
Posting Freak

4,843

04-07-2020, 12:19 PM

#429

As you can probably see, the belt Thor have supplied is miles too long. It's a 6PK1125 I think. The tensioner in that image is wound up as tight as it will go (it's actually touching the crank pulley) and there's still loads of slack. So I'll be on the phone tomorrow! You can see I've gutted the original tensioner as the belt path goes straight through where it would have been.

I'm 100% happy with the transmission loom now so I wrapped it up in some glass fibre heatproof wrap and drilled a hole in the tunnel. All cars should be made of aluminium! Was so easy to get the hole just right. Stuck a grommet on it and ran the loom through.

[Image: IMG_20130815_203941.jpg]

Gonna do the rest in spiral wrap but the stuff I bought is too thin!

toxo

04-07-2020, 12:19 PM #429

I assembled the aux belt setup today using the thor tensioner which lets you use a shorter belt and bypass the air conditioning compressor. It took a while as they sent me the wrong pitch bolts for attaching it, and then never replied to my requests for the right ones. So I sorted it out myself and put it together:

[Image: IMG_20130815_190538.jpg]

As you can probably see, the belt Thor have supplied is miles too long. It's a 6PK1125 I think. The tensioner in that image is wound up as tight as it will go (it's actually touching the crank pulley) and there's still loads of slack. So I'll be on the phone tomorrow! You can see I've gutted the original tensioner as the belt path goes straight through where it would have been.

I'm 100% happy with the transmission loom now so I wrapped it up in some glass fibre heatproof wrap and drilled a hole in the tunnel. All cars should be made of aluminium! Was so easy to get the hole just right. Stuck a grommet on it and ran the loom through.

[Image: IMG_20130815_203941.jpg]

[Image: IMG_20130815_204017.jpg]

[Image: IMG_20130815_204107.jpg]

Gonna do the rest in spiral wrap but the stuff I bought is too thin!