A very budget stroker from Russia

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Re: A very budget stroker from Russia

Post by Cheromaniac »

darkcorp wrote:Wow, Dr.Dyno! I know that you speak 7 languages, but I couldn't imagine Russian is one of them.
I can only speak two fluently (English & Greek) and I know only a few words of Russian.
A lot of Russians visit Cyprus so I'll probably learn the language properly in the coming months. :mrgreen:
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darkcorp
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Re: A very budget stroker from Russia

Post by darkcorp »

SkylinesSuck wrote:And I'll just mention that an average bottle of "octane corrector" only bumps it .3 octane points when it says 3 points, so it really doesn't do much.
Thanks a lot. I decided to drop CR to 10:1 by enlarging combustion chamber in head by 5cc - it will be rational and safe.
I know one professional sport's mechanic that will do it for me or I'll buy a dremel toll and do it by myself.
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Re: A very budget stroker from Russia

Post by darkcorp »

Hi, guys!
I broke my mind thinking about CR and DCR.
Could you explain please what is better - CR 10.2 with 0.051" quench and OEM head gasket or CR 10.5 with 0.043" quench and MSL gasket? What will resist detonation better?
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Re: A very budget stroker from Russia

Post by Russ Pottenger »

You'll be better off tightening up the quench .008 so I'd go with the .043 MLS Gasket. If you're able to find somebody in your town that has a radius end mill bit and can trace and deepen your existing dish and surface .005 to .008 off the deck of the block, that would further help you.
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darkcorp
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Re: A very budget stroker from Russia

Post by darkcorp »

Russ Pottenger wrote:and surface .005 to .008 off the deck of the block, that would further help you.
Hi, Russ! Thanks for reply.
Do you mean piston will be .005-.008" out of the block and quench .035 to .038?
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Re: A very budget stroker from Russia

Post by Russ Pottenger »

darkcorp wrote:
Russ Pottenger wrote:and surface .005 to .008 off the deck of the block, that would further help you.
Hi, Russ! Thanks for reply.
Do you mean piston will be .005-.008" out of the block and quench .035 to .038?
That's correct.

I'll always advise my customers to shoot for .008 out of the deck. The reason for that is you have two readily available gasket choices. A .043 MLS Gasket will put you about .035 piston to head. A .051 Fel-Pro composition gasket will put you at .043 piston to head at TDC.
Both gasket combinations will allow you to maintain a good quench and allow for some flexibility with inconsistent measurements or variances.
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darkcorp
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Re: A very budget stroker from Russia

Post by darkcorp »

BTW, what is recommended wall clearance for Sealed Power 677CP (actually I have EngineTech 677AP but guess they are the same). Can't find this info :(
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Re: A very budget stroker from Russia

Post by Russ Pottenger »

darkcorp wrote:BTW, what is recommended wall clearance for Sealed Power 677CP (actually I have EngineTech 677AP but guess they are the same). Can't find this info :(
On a .030 (3.905) bore a Sealed Power 677AP piston skirt should measure 3.90376 plus or minus .00025

So the answer to your proper clearance would be .001 to .0015 is what I'd put it. Usually if the skirt is coded you add .001 to your clearance.

Hope that helps
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Re: A very budget stroker from Russia

Post by darkcorp »

I have 0,20 oversize with no coating.
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darkcorp
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Re: A very budget stroker from Russia

Post by darkcorp »

Sorry, I mean 0.020" oversize with no coating.

Here in Russia we use metric system, so according to information given above it should be 0.03-0.04 mm?
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Re: A very budget stroker from Russia

Post by IH 392 »

.002" = .0508mm, .0015" = .0381mm, so somewhere between .045mm and .05mm should be good.
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darkcorp
I made it to triple digits!
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Posts: 101
Joined: November 14th, 2013, 12:21 am
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Contact:

Re: A very budget stroker from Russia

Post by darkcorp »

Hi guys!
Could you explain me if I mill the deck 0.040" will I need shorter pushroads? If "yes" then what's maximum block shaving option for stock pushroads?
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darkcorp
I made it to triple digits!
I made it to triple digits!
Posts: 101
Joined: November 14th, 2013, 12:21 am
Stroker Displacement: 4.6L
Vehicle Year: 1999
Vehicle Make: JEEP
Vehicle Model: GCh 4.0
Location: Kazan/Russia
Contact:

Re: A very budget stroker from Russia

Post by darkcorp »

Finally I've made it!

First start after fuel rail got pumped:

https://youtu.be/BjwatSw-wxA

Stroker idles soft after lifters got filled by oil:

https://youtu.be/OvTZagfXyaI

Later in this thread I'll post some pics and describe process of my budget 4.6 jeep stroker build.
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Re: A very budget stroker from Russia

Post by Cheromaniac »

Sounds good. Congratulations. :cheers:
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Re: A very budget stroker from Russia

Post by HCE »

Did you end up shortening the rods?
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