Jump to content
The mkiv Supra Owners Club

A 4.7L 2UZ NA Engine Swap into a MKIV NA.


Recommended Posts

  • Replies 182
  • Created
  • Last Reply

Top Posters In This Topic

  • 3 weeks later...
Hi guys,

 

Here's a quick update. We made a set of braces for the 2uz motor to keep the main caps tight under high rpm. A little extra insureance can go a long way.

 

image

 

What's the material there? As said it's a Cast Iron block so to stiffen that up the metal must be pretty robust.

 

Does it go under the caps or stop before them on each side? It looks like it stops so I guess the main bracing is longditudinal...

 

I take it longer bolts are in use ;) :p

Link to comment
Share on other sites

Hi Alex,

 

Ed's an NA application so we can use a 1018 steel. There's not a whole lot of stress on the manis normally, but a little insurance under high rpm can't hurt. Fast forward to a TT application, and we have to switch to a much more stiff 17-4 staineless. It has a yield strength of 110,000psi so it's going to resist any sort of flex. The braces simple affix to the top of the mains and longer bolts used. This with our upcoming billet 4 bolt splayed mains will result in a very stable bottom end.

 

Thanks!

 

Eric

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.