Fordmods Logo

decking the engine block 

 

Page 1 of 2 [ 21 posts ] Go to page 1, 2  Next

 
 Post subject: decking the engine block
Posted: Thu Feb 25, 2010 1:37 pm 
Tyre Shredder
Offline

Age: 25

Posts: 359

Joined: 22nd Dec 2009

Gallery: 10 images

Ride: el xr6, r33 series 2 skyline

Power: 149 rwkw

Location: adelaide
SA, Australia

does it increase the compression as much as shaving the head?

already got the head shaved 40thou want to get some more compression

is it even worth it?

so far im at 154rwkw im not to fussed on the rwkw figure more so need some feelable power

 

_________________

God made s**t, Holden put wheels on it

skyline daily
ford building

Top
 Profile  
 
 
 Post subject: Re: decking the engine block
Posted: Thu Feb 25, 2010 1:46 pm 
Fordmods Junkie
Offline
User avatar

Age: 35

Posts: 3045

Joined: 26th Nov 2008

Ride: 1975 XB Falcon 500

Location: In the drivers seat
SA, Australia

Im not familiar with that term? Im assuming that you mean shaving the block to get more compression.

Im pretty sure that you might be going too far if you have already shaved 1mm off the head. You can use a AU head gasket to give you a little more.

 

_________________

Image
http://www.facebook.com/Ford1975

Top
 Profile  
 
 
 Post subject: Re: decking the engine block
Posted: Thu Feb 25, 2010 1:50 pm 
Tyre Shredder
Offline

Age: 25

Posts: 359

Joined: 22nd Dec 2009

Gallery: 10 images

Ride: el xr6, r33 series 2 skyline

Power: 149 rwkw

Location: adelaide
SA, Australia

yer i ment shaving the engine block ( other people on here called it decking the head)

iv already got the au gasket

the head work only helped with the 60km and upwards power

is there a stroker kit for the 4l?

other than that iv done everything there is to make it powerful

 

_________________

God made s**t, Holden put wheels on it

skyline daily
ford building

Top
 Profile  
 
 
 Post subject: Re: decking the engine block
Posted: Thu Feb 25, 2010 2:21 pm 
Getting Side Ways
Offline
User avatar

Age: 45

Posts: 1953

Joined: 1st Feb 2006

Gallery: 25 images

Ride: BA on gas. EL on gas. XF on gas.

Location: Greenacres/Adelaide
SA, Australia

Over bore cylinder and race pistons.....

 

_________________

Member Number 8804
Image

Top
 Profile  
 
 
 Post subject: Re: decking the engine block
Posted: Thu Feb 25, 2010 2:40 pm 
Getting Side Ways
Offline

Posts: 2410

Joined: 4th Sep 2006

Location: Sydney
NSW, Australia

Mate ur already taken a fair bit and if u take more u will end up with timing chain problems and what not.

40thou is 1mm so u better be checking how much timing chain as u dont want that 2 be slack and id personally only go 20thou off the head and 20thou off the block so i wont run into any drama's.

 

_________________

Wanted Either Capri/Cortina/XY/XW/XR/XT with tough V8 stroker engine, auto, 9inch, upgraded brakes etc[/SIZE][/size][/color]

Top
 Profile  
 
 
 Post subject: Re: decking the engine block
Posted: Thu Feb 25, 2010 2:41 pm 
Getting Side Ways
Offline
User avatar

Age: 49

Posts: 6467

Joined: 18th Dec 2006

Ride: 93 ED sedan

Power: 161 rwkw

Location: Rockhampton
QLD, Australia

What else have you done, besides the head shaving and AU gasket????

 

_________________

http://youtu.be/jJTh9F3Vgg0

Top
 Profile  
 
 
 Post subject: Re: decking the engine block
Posted: Thu Feb 25, 2010 3:10 pm 
Getting Side Ways
Offline
User avatar

Posts: 807

Joined: 28th Oct 2008

Location: melburn
VIC, Australia

lol here we go again.

paulo, in your thread about raising compression people have answered all these questions.

decking the block and shaving the head aren't the best ways of gaining compression.
you need to pull the engine apart to deck the block, so you may as well install high comp pistons.
decking the block is more to get the face of the block flat again or change the quench characteristics when fitting pistons/rods/crank of a different height or stroke.

 

_________________

XG Panelvan
mild engine, EL ECU & J3, HI6 & MSD coil

in the shed - .595" lift cam, GT4202, forged AU engine, ems 4424 ecu, glide & 5500 stall - next-bellhousing

XH ute daily - DOHC BA XR6 engine, T5, AU3 ECU, J3 chip, wideband & logger, ported BBM, 3" intake

Top
 Profile  
 
 
 Post subject: Re: decking the engine block
Posted: Thu Feb 25, 2010 4:12 pm 
Tyre Shredder
Offline

Age: 25

Posts: 359

Joined: 22nd Dec 2009

Gallery: 10 images

Ride: el xr6, r33 series 2 skyline

Power: 149 rwkw

Location: adelaide
SA, Australia

well cheers anyway

atleast now i know decking the head is mainly to get it flat again

is raising the compression the only thing i can do from here to get more power or hav i missed something?

cjh- extractors,cat,catback exhuast,cam and chip

misk_one- yer your right i went through some of my old posts and u and few other ppl already answered it i just forgot.

any brands of racing pistons i should look at getting?

 

_________________

God made s**t, Holden put wheels on it

skyline daily
ford building

Top
 Profile  
 
 
 Post subject: Re: decking the engine block
Posted: Thu Feb 25, 2010 4:28 pm 
NSW Cruise Moderator
Offline
User avatar

Age: 39

Posts: 7331

Joined: 5th Nov 2004

Gallery: 12 images

Ride: TE50

Location: ɹǝpun uʍop
NSW, Australia

get some flat tops or lumpy top pistons, and butterfly cut them, O-Ring your head, and do away with the gaskets,

ACL suppliers may have a few flat tops left, but no longer in production.

There is more you can do yet, you have hardly scratched the surface on things to do. the stuff you listed are the CHEAPER mods.

 

_________________

Image

I have a car.

Top
 Profile  
 
 
 Post subject: Re: decking the engine block
Posted: Thu Feb 25, 2010 4:39 pm 
Tyre Shredder
Offline

Age: 25

Posts: 359

Joined: 22nd Dec 2009

Gallery: 10 images

Ride: el xr6, r33 series 2 skyline

Power: 149 rwkw

Location: adelaide
SA, Australia

wonna explain these mods u are talking about?

so far i havent red anything more happning to these engines apart from turbo or s/c

 

_________________

God made s**t, Holden put wheels on it

skyline daily
ford building

Top
 Profile  
 
 
 Post subject: Re: decking the engine block
Posted: Thu Feb 25, 2010 4:57 pm 
Getting Side Ways
Offline
User avatar

Posts: 807

Joined: 28th Oct 2008

Location: melburn
VIC, Australia

the thing is the further you want to go in terms of power the less street friendly it will become.
it seems 160-170rwkw is the most you can get without going full solid cam, methanol style s**t.

and to get to that power level its all in the tune and the cam.
the bottom end can be rebuilt to ensure you have a good seal with new rings and good high comp pistsons, but its not really going to make more power after a rebuild unless your current bottom end is f**k.

 

_________________

XG Panelvan
mild engine, EL ECU & J3, HI6 & MSD coil

in the shed - .595" lift cam, GT4202, forged AU engine, ems 4424 ecu, glide & 5500 stall - next-bellhousing

XH ute daily - DOHC BA XR6 engine, T5, AU3 ECU, J3 chip, wideband & logger, ported BBM, 3" intake

Top
 Profile  
 
 
 Post subject: Re: decking the engine block
Posted: Thu Feb 25, 2010 5:03 pm 
Tyre Shredder
Offline

Age: 25

Posts: 359

Joined: 22nd Dec 2009

Gallery: 10 images

Ride: el xr6, r33 series 2 skyline

Power: 149 rwkw

Location: adelaide
SA, Australia

when u mean street friendly u mean petrol consumption and stuff?

so pretty theres nothin i can do further but continue to tune it?

what could dc_todd possibly be talking about then if i havent even scrachted the surface ( or mabye its just his opinion)

 

_________________

God made s**t, Holden put wheels on it

skyline daily
ford building

Top
 Profile  
 
 
 Post subject: Re: decking the engine block
Posted: Thu Feb 25, 2010 5:18 pm 
Getting Side Ways
Offline

Posts: 2410

Joined: 4th Sep 2006

Location: Sydney
NSW, Australia

I believe hypatec are the only mob around providing off the shelf highest comp piston unless u get it custom made or find something that will fit the rod.

 

_________________

Wanted Either Capri/Cortina/XY/XW/XR/XT with tough V8 stroker engine, auto, 9inch, upgraded brakes etc[/SIZE][/size][/color]

Top
 Profile  
 
 
 Post subject: Re: decking the engine block
Posted: Thu Feb 25, 2010 5:54 pm 
Getting Side Ways
Offline

Age: 66

Posts: 2548

Joined: 18th Mar 2006

Ride: EF-XR8chaser

Location: wollongong
NSW, Australia

port the head,bigger valves,the right pistons,rings,rods,crank and cam,balanced,oil pump and better timing gears,chain tensioners,headers and a new ecu to run it.have you worked out the compression ratio you want,will the drive train take it AND WILL IT STOP?we are talking straight driving,will it corner well or be a see saw in corners.

 

_________________

R.I.P HANS HARTMAN

Top
 Profile  
 
 
 Post subject: Re: decking the engine block
Posted: Thu Feb 25, 2010 7:21 pm 
NSW Cruise Moderator
Offline
User avatar

Age: 39

Posts: 7331

Joined: 5th Nov 2004

Gallery: 12 images

Ride: TE50

Location: ɹǝpun uʍop
NSW, Australia

hans hartman wrote:
port the head,bigger valves,the right pistons,rings,rods,crank and cam,balanced,oil pump and better timing gears,chain tensioners,headers and a new ecu to run it.have you worked out the compression ratio you want,will the drive train take it AND WILL IT STOP?we are talking straight driving,will it corner well or be a see saw in corners.


Thats what I am talking about..

 

_________________

Image

I have a car.

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 2  [ 21 posts ]  Go to page 1, 2  Next

Who is online

Users browsing this forum: No registered users and 28 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Mon Dec 18, 2017 1:30 am All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names