Fordmods Logo

what does shaving the heads do? 

 

Page 1 of 1 [ 12 posts ] 

 
 Post subject: what does shaving the heads do?
Posted: Thu Feb 23, 2006 1:52 pm 
Stock as a Rock
Offline

Age: 31

Posts: 127

Joined: 1st Feb 2006

Ride: ef falcon

Location: melb
VIC, Australia

what does shaving the heads do? and is there any performance gains in it?
Top
 Profile  
 
 
Posted: Thu Feb 23, 2006 1:59 pm 
Getting Side Ways
Offline
User avatar

Age: 39

Posts: 1434

Joined: 5th Nov 2004

Gallery: 15 images

Ride: ALTED XR6 - ALTED EA - EF TAXI

Location: Sunshine Coast QLD
QLD, Australia

head shaving bumps up the compresson of the motor. just be careful not to go overboard with it!
Top
 Profile  
 
 
Posted: Thu Feb 23, 2006 2:01 pm 
Stock as a Rock
Offline

Age: 31

Posts: 127

Joined: 1st Feb 2006

Ride: ef falcon

Location: melb
VIC, Australia

so does that mean more power?
Top
 Profile  
 
 
Posted: Thu Feb 23, 2006 2:26 pm 
Smokin em up
Offline

Age: 30

Posts: 235

Joined: 10th Nov 2005

Ride: S2 TI R31

Location: Melbourne
VIC, Australia

In a short answer... "Yes".

- mike
Top
 Profile  
 
 
Posted: Thu Feb 23, 2006 2:45 pm 
Tyre Shredder
Offline

Age: 30

Posts: 376

Joined: 9th Feb 2006

Location: melbourne
VIC, Australia

compression is the best way to make horses and torque....but if you start going ballistic, you would need to blueprint the heads, install strengthend pistons (forged/alloy) and offcourse water injection ALL to avoid pre-ignition/detonation.

 

_________________

Image

Top
 Profile  
 
 
Posted: Fri Feb 24, 2006 6:47 am 
Getting Side Ways
Offline

Posts: 1656

Joined: 22nd Jun 2005

Location: Melbourne
VIC, Australia

more squeeze more power ( greater cylinder pressures ) but very little if its just a minor material remove for straightening purposes
i
e head bent replacing head gasket

yes a good way of increasing power output , source a cylinder head that will fit on ur car with a smaller combustion chamber in the head will also bump up the compression ratio and again more power

also remember higher comp means u have to run better quality fuel

cheers

 

_________________

FS [VIC]: WorkShop CleanOut - Assorted Parts Some New & Chassis Dyno http://www.fordmods.com/ford-parts-for-sale-f17/fs-workshop-cleanout-assorted-parts-some-new-chassis-dyno-t123623.html

Top
 Profile  
 
 
Posted: Fri Feb 24, 2006 9:28 am 
Smokin em up
Offline
User avatar

Age: 31

Posts: 247

Joined: 24th Nov 2005

Location: Brissy
QLD, Australia

FPV_GTp wrote:
more squeeze more power ( greater cylinder pressures ) but very little if its just a minor material remove for straightening purposes
i
e head bent replacing head gasket

yes a good way of increasing power output , source a cylinder head that will fit on ur car with a smaller combustion chamber in the head will also bump up the compression ratio and again more power

also remember higher comp means u have to run better quality fuel

cheers


Like in the 80's when every holden bloke was putting 179,186 heads onto there 202 motors.
Top
 Profile  
 
 
Posted: Fri Feb 24, 2006 9:58 am 
Parts Gopher
Offline

Age: 51

Posts: 94

Joined: 9th Jan 2006

Location: Sydney
NSW, Australia

The REAL hot tip was the 149HC head...
And a Bert Jones 40/80.
Triples
Impala shifter on a crash box

See, us old f@rt can speak in strange slang!
Top
 Profile  
 
 
Posted: Fri Feb 24, 2006 10:07 am 
Getting Side Ways
Offline
User avatar

Age: 79

Posts: 1233

Joined: 7th Apr 2005

Gallery: 7 images

Ride: GTHO PH 1 EF ex chaser

Location: Willow vale, GOLD COAST
QLD, Australia

playswithnitro wrote:
The REAL hot tip was the 149HC head...
And a Bert Jones 40/80.
Triples
Impala shifter on a crash box

See, us old f@rt can speak in strange slang!

WOW another old f@rt on fordmods, I also speak old horsepower :P :P

 

_________________

Rotten Old Revhead!!! XW GTHO + EF ex cop car (exractors 2.5 cat back zorst !6" Simmons K&N +airbox mods Lowered with Bilstein shocks+Whiteline Bars NEXT THING Swap HO for GTP or Ferrari!

Top
 Profile  
 
 
Posted: Fri Feb 24, 2006 6:10 pm 
Technical Contributor
Offline
User avatar

Age: 53

Posts: 5589

Joined: 14th Jan 2005

Gallery: 10 images

Ride: 96 XH/97 EL

Location: South Coast
NSW, Australia

falcon4litreOHC wrote:
Like in the 80's when every holden bloke was putting 179,186 heads onto there 202 motors.
Sorry to pick s**t, but it has to be the smaller capacity red motor heads, with the smaller kidney shaped cc chambers, to boost compression, like the 149 as mentioned, the 179 and 186 had same capacity cc chambers as the 202.

 

_________________

96 XH Longreach 'S': LPG, Alarm, 3.23:1 LSD, Cruise, Trip Comp, ABS, Power Windows, Mid Series Dome Lt, Climate Ctrl
97 EL Futura S/W: LPG, Alarm, LED int Lts, Trip Comp, F/Lane Dome Lt, Climate Ctrl, T5 Conversion

Top
 Profile  
 
 
Posted: Fri Feb 24, 2006 10:55 pm 
Stock as a Rock
Offline

Posts: 121

Joined: 8th Oct 2005

Location: Perth
WA, Australia

186 had same c/chamber as 202 but with studs for rockers instead of bolts, 179 had smaller chamber, same deal on the blue motors, 2.8 had smaller c/chamber than 3.3.
Top
 Profile  
 
 
Posted: Sat Feb 25, 2006 9:38 am 
Getting Side Ways
Offline
User avatar

Age: 48

Posts: 7029

Joined: 18th Apr 2005

Location: Hobart
TAS, Australia

welcome to the forum old f@rt!! join the group. I too speak hp, lb/ft, lb/in torque. I'm learning the new lingo as I'm reading some of the post here. :lol:

 

_________________

Mind f**k!!! it works on feeble minded ignorant sheeples... there's plenty of em on this site... some are very intelligent but by god they are so thick!!!

Pakrat wrote:
You can buy them seppertly

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 12 posts ] 

Who is online

Users browsing this forum: No registered users and 33 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 8:47 pm All times are UTC + 11 hours

 

 

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