Advice on Machine Work For Fully Built Motor??

BoostedFloto

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Aug 16, 2005
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Tampa, FL
Ok, well I'm starting to plan my re-build and would like some advice on machine work I should/need to get. As many of you know I've had a lot of issues in the past with different problems that I don't want to get into. I'm not sparing any cost on this and will just save up longer in order to get everything done! So that being said my power goals are for HIGH HP.

The Bottom end will include:
Crower Rods
Titan Billet Main Caps
I have 40over Wiseco's that have under 100miles on them, they were in a Severe Piston slap block. First Question should I replace them with 20over XXXX's ?

This is what I have for the block so far. Looking for suggestions on what I should set clearances/ring gaps to. Also add anything I missed !!
Machine Work for Block:

1. Magna Flux
2. Hot Tank
3. Deck W/ Timing cover in place
4. Bore W/ Torque Plate, Tensioner Bolt at 36ft/lb and piston to bore clearance of - .0035
5. Gap Rings To -
6. Align Bore Billet Mains
7. Cut Crank 10/10
8. Clearance set to Mains- Rods-
9. New Freeze Plugs
10. New Aux Bearings
11. Full Bearing Set Clevite or other ???
12. Cut Crank pulley bolt for ATI

The head I'm going to fully Build w/Ferrea everything and would like suggestions on which cams to go with. This is where I need most help I've never had a head built before and don't know any specifics I need to tell the machine shop.

Machine Work For Built Head:
1. Pressure Test
2. Resurface to lowest RA possible
3. Hot tank/Sonic Clean
4. PnP any instructions here ???
5. Align hone cam journals
6. Install Ferrea Componts what instructions do I need to tell them any specifics??
7. Shimless buckets a good idea ? If so, again any instructions I need to tell them? Where to get them ?

Any and All help suggestions is Greatly Appreciated !!

PS Does anybody have a torque plate I can "rent" when needed ??
 
Last edited:

Rennat

5psi...? haha
Dec 6, 2005
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contact "nosman4" for a torque plate... or i can give you his profile so you can PM him. Hes a very nice guy and let me borrow his for like $15 or $20...

sounds like you got everything sorted out.
and if you can get a 90+ 7m block wit the extra ribbing and bracing then just rebore it for a tighter piston to wall clearance for the pistons, as long as there ok.
 

BoostedFloto

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Aug 16, 2005
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Tampa, FL
Rennat;1007456 said:
contact "nosman4" for a torque plate... or i can give you his profile so you can PM him. Hes a very nice guy and let me borrow his for like $15 or $20...

sounds like you got everything sorted out.
and if you can get a 90+ 7m block wit the extra ribbing and bracing then just rebore it for a tighter piston to wall clearance for the pistons, as long as there ok.


Is that his name on here ? I have the 90+ thicker block ready to go...just wanting to verify machine work stuff so I can take it all in there with a big list and say this is what I want
 

BoostedFloto

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Aug 16, 2005
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IJ.;1007530 said:
Ahhhh sorry I fail at reading this morning <hanging head in shame> :nono:
<ninja edit> but then again YOU didn't mention Billet Caps:icon_razz

hehe thats ok. I edited the original post to make it clearer.
 

Doward

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Jan 11, 2006
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Don't cut the crank. Micropolish it and have all the rods resized to proper clearances, instead.

Once that is complete, do a full zero balance on the rotating assembly (didn't see that mentioned)
 

BoostedFloto

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Aug 16, 2005
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Tampa, FL
Doward;1007564 said:
Don't cut the crank. Micropolish it and have all the rods resized to proper clearances, instead.

Once that is complete, do a full zero balance on the rotating assembly (didn't see that mentioned)


Hmmm good idea.......as far as proper clearances what should I tell the machine shop.

TSRM says:
Rods are to be between: .021 - .053mm (.0008-.0028") max of .07mm(.0028")
Mains are to be .030 - .048mm (.0012-.0019") max of .07mm(.0028")

I'd like to give the machine shop a set Clearance I want.

Yes a balance will be done
 

Idealsupra

Supramania Contributor
Mar 31, 2005
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IJ.;1007629 said:
Personally I wouldn't run a high Hp 7M tight ever again.

I was seeing LOTS of bearing deformation/wiping the surfaces at the low end of the Toyota specs.


Well yes. My "tight" is taken pretty much dyslexic lol. As you can see from the specs I posted I guess that would be considered "loose". I am just dyslexic when it comes to "tight" or "loose" terminology sometimes. ;)

Must be my old age! :sarcasm:
 

Doward

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Jan 11, 2006
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Proper bearing clearances depend on your HP goals.

I'm running .0025" on the mains, .002" on the rods. I consider my motor 'tight' for 550-650rwhp, on a 30wt oil.
 

Idealsupra

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Mar 31, 2005
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Doward;1007680 said:
Proper bearing clearances depend on your HP goals.

I'm running .0025" on the mains, .002" on the rods. I consider my motor 'tight' for 550-650rwhp, on a 30wt oil.

Wouldnt the mains be out of spec at that? Granted the mains are still .0003 before max out of spec but its out of the spec range.

BoostedFloto;1007581 said:
TSRM says:
Rods are to be between: .021 - .053mm (.0008-.0028") max of .07mm(.0028")
Mains are to be .030 - .048mm (.0012-.0019") max of .07mm(.0028")

Also Id say its safe to say this engine will be looking at 800+ HP.
 

Doward

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Jan 11, 2006
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.0028" is Toyota's factory maximum, assuming 10w30 oil from 1986, and 232hp.

When going for triple the stock output, I wouldn't recommend .0015" mains ;)
 

BoostedFloto

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Aug 16, 2005
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Tampa, FL
Doward;1007729 said:
.0028" is Toyota's factory maximum, assuming 10w30 oil from 1986, and 232hp.

When going for triple the stock output, I wouldn't recommend .0015" mains ;)

What would you recommend ??

From what I've seen there is no Golden rule for this power set your clearances to X. So I'm just trying to gather a lot of experiences from people and make my decision based on that.

Also anybody have any specifics I need to tell a machine when building a head ?
 

Doward

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Jan 11, 2006
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It depends on how you are going to drive your car. With a turbocharged engine, your engine sees maximum internal force only when you go WOT @ maximum pressure.

If you are going to spend most of your day driving like grandma, go .0015" or so, imho.

If you are going to spend a lot of time on the strip, go a little looser.
 

BoostedFloto

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Aug 16, 2005
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Tampa, FL
Doward;1008651 said:
It depends on how you are going to drive your car. With a turbocharged engine, your engine sees maximum internal force only when you go WOT @ maximum pressure.

If you are going to spend most of your day driving like grandma, go .0015" or so, imho.

If you are going to spend a lot of time on the strip, go a little looser.



The car wont be a daily driver by any means and it will definitly see track time.

How much looser you thinking ?