[Supras] torque plate for boring/honing 7M?

[Brandon]

First you won't find many people w/ one,  the shop that did my last 7M was 
Benson's in Santa Ana Ca at the time, now in idaho somewhere.   I shipped my 
stuff out there from NE, so location is no excuse! lol.

If you are set on your machine shop have him measure the distortion.  Jut 
put your ARP studs in the block throw a used gasket in and torque down the 
head, measure the bore w/ and w/ out the head torqued down, that will tell 
you exactly what to expect.

In regards to the Honda blocks.... well the Honda engine isn't the same as a 
7M.  Most honda engines are aluminum open deck design. 
http://www.transonicracinginnovations.com/gallery/album15/b165
that shows the deck of a b16 block, you can see that the stud placement 
won't have as much distortion effect on the cylinder because of the open 
deck as a cast iron block like the 7m would have. 
http://www.transonicracinginnovations.com/gallery/album28/17_G L<-- 7m if 
you don't have a pic handy.

Oh and one other option is that i have heard you can make a torque plate 
from old cylinder heads, i'm not sure how much work this is etc, but if you 
need a head, i'm sure i've got a junk one that could be yours for cost of 
shipping.

Brandon


----- Original Message ----- 
From: "Jordan Weaver" <jordanweaver at gmail.com>
To: <Supras at supras.com>
Sent: Thursday, January 18, 2007 10:50 AM
Subject: [Supras] torque plate for boring/honing 7M?


> Who has a torque plate for the 7M or has had their block bored / honed 
> with
> a torque plate? How much of a difference does it make? Where could I get
> one? I just read an SAE paper that stated benefits of reduced oil
> consumption, emmissions, and general engine wear - however it wasn't as
> detailed as I would have liked.
>
> I'm getting my block bored .020 over for wiseco forged pistons, but I wish
> my machine shop had a torque plate. I trust the guy's work, but I wish I
> could do it the best way and not just settle for normal. My machinist
> doubted anyone in the area (Waldorf, MD - south of D.C.) had one. He
> encouraged me to call around though to see if any other shop had one or
> could let me borrow it. He said they also do a lot of Hondas without a
> torque plates without any problems.
>
> This is my second rebuild. My first suffered from excessive blowby. My 
> ring
> gaps were large without trimming (.022"), but I'm wondering if that was 
> the
> cause or just the result of something else wrong. Perhaps my standard 
> piston
> bore had been honed one too many times - or perhaps too much cylinder
> distortion?
>
> thanks
> Jordan
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