Building bottom end - tips please - Page 2 - Focus Fanatics
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Focus Fanatics > Ford Focus Tech Discussions > General Forced Induction

General Forced Induction The place to chat about turbochargers, superchargers nitrous systems and custom engine fabrications.

Search This Forum | Image Search | Advanced Search    
Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 06-15-2009, 09:26 AM   #11
sporadic
Focus Addict
 
sporadic's Avatar
 
Join Date: Sep 2004
Fan#: 12724
Location: Fairmont, WV
What I Drive: 06 Sonic Blue ZX5 SES turbo

Posts: 1,259
FF Reputation: 61 sporadic Excellent Standing Member
Buy-Sell-Trade Rating: (12)
I'm still confused as to why I would get it bored if it's not out of round.
__________________
2006 sonic blue zx5 GT2871r turbo.
sporadic is offline  
    Reply With Quote
Sponsored Links
Advertisement
 
Old 06-15-2009, 10:35 AM   #12
sporadic
Focus Addict
 
sporadic's Avatar
 
Join Date: Sep 2004
Fan#: 12724
Location: Fairmont, WV
What I Drive: 06 Sonic Blue ZX5 SES turbo

Posts: 1,259
FF Reputation: 61 sporadic Excellent Standing Member
Buy-Sell-Trade Rating: (12)
Quote:
Originally Posted by 1turbofocus View Post
Forged Pistons / Go over size
Eagle Rods
ARP head and main studs
Stock gasket set / use the felpro seals much better then Fords
Squair the block there off
Stock oil pump

Thats all you should need

There is a lot of talk about bearings and so far its all BS , Just get some regular Clevite/ Mich77 bearings and your fine

Tom
Tom what are your thoughts on the package offered by F2 with the SuperTech pistons and F2 con rods?
I'm having trouble finding Eagle rods for a 2.0.

Can someone help me determine what compression ratio and PSI I should run with 91 octane gas?
The 91 octane is important because that's so common here.
__________________
2006 sonic blue zx5 GT2871r turbo.
sporadic is offline  
    Reply With Quote
Old 06-15-2009, 11:14 AM   #13
DFv2
WWTPD?
 
DFv2's Avatar
 
Join Date: Jan 2007
Fan#: 42684
Location: Upstate NY
What I Drive: 2008 Lightning Red STi

Posts: 1,735
FF Reputation: 31 DFv2 Great Standing Member
Buy-Sell-Trade Rating: (12)
Quote:
Originally Posted by sporadic View Post
I'm still confused as to why I would get it bored if it's not out of round.
To fit the new oversized pistons. Buy the pistons, rods, rings and bearings, oil pump and gasket set. Bring this and the bare shortblock to an engine shop and have them bore it for the pistons, square the deck assemble the shortblock.

Bring it home, pop it in your car and you'll be good to go. 9:1 is an excellent compression ratio for this vehicle. Decent off-boost throttle response, with enough headroom to turn up the boost without getting too finicky. Yes you need a new head gasket. You should be doing new head studs as well.

And you though you could just drop in rings and pistons didn't you!!?
__________________
1287/3985
DFv2 is offline  
    Reply With Quote
Old 06-15-2009, 11:36 AM   #14
BigRed03
( o Y o )
 
BigRed03's Avatar
 
Join Date: Feb 2006
Fan#: 32177
Location: Ft. Laudy, Afghanistan
What I Drive: 2003 CD Silver ZX5 SVT

Posts: 5,549
FF Reputation: 9 BigRed03 Good Standing Member
Buy-Sell-Trade Rating: (4)
9.0 if what you plan on running is 91 octane. If you had access to 93 (like here in Florida, that is premium) I would run 9.2 compression. Now, you would like to run more than 15 psi from time to time, that, to me, says 9.0.

And for the reasons behind boring the block out, the rings may have scored the cylinder walls and to get a good seal, those scorings will have to be removed with a boring and honing. Plus, there is no replacement for displacement!
__________________
BigRed03 is offline  
    Reply With Quote
Old 06-15-2009, 02:09 PM   #15
sporadic
Focus Addict
 
sporadic's Avatar
 
Join Date: Sep 2004
Fan#: 12724
Location: Fairmont, WV
What I Drive: 06 Sonic Blue ZX5 SES turbo

Posts: 1,259
FF Reputation: 61 sporadic Excellent Standing Member
Buy-Sell-Trade Rating: (12)
Thanks for the input everyone.

My plans have changed again.
I swung by my local salvage yard which is typically way expensive, but I thought what the heck.
They had a 2006 D20 with 68 miles on it for $500.
It includes the exhaust manifold, intake manifold, fuel rail, injectors, COPs etc.
It was from a rollover, most likely during a test drive.
So my plan is to throw that in for now (since 10psi was fine for the stock engine, the overboost hurt it) and I'll have still my current engine to take my time with building up.
__________________
2006 sonic blue zx5 GT2871r turbo.
sporadic is offline  
    Reply With Quote
Reply

Bookmarks & Social Networks

Tags
bottom end, forged, internals, turbo

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
You're doing it wrong! AKA Rice Reports(Post autofails here!) mattsstang87 Ford Focus & General Car Chat 12957 Yesterday 09:37 PM
Front end Rattle fixed Ed60 Wheels & Tires - Sponsored By Tire Rack 2 05-01-2007 11:25 PM
Do all Focus's have the split rear BOTTOM cushion? InFocus66 Ford Focus & General Car Chat 8 02-09-2007 07:58 AM
stock end links vs. prothane end links scironzts Wheels & Tires - Sponsored By Tire Rack 4 06-04-2004 11:15 AM


All times are GMT -5. The time now is 08:01 AM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Terms of Use : Privacy Policy : Advertise Information : Site Map

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Acura TLX or Fiesta ST. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area.