Fordmods Logo

comparing au standard and xr6 motor 

 

Page 1 of 1 [ 8 posts ] 

 
 Post subject: comparing au standard and xr6 motor
Posted: Sat Jul 21, 2007 8:31 pm 
Getting Side Ways
Offline

Posts: 491

Joined: 19th May 2007

Ride: fairmont ED

Location: sydney
NSW, Australia

According to redbook, standard one has 157kw and the xr6 has 172..

now im seriously considering doing a project converting a ef/el with a au motor..

being a project i would rather buy a standard motor and do head mods myself then buying a xr6 one for more $$

my question is, what has the xr6 got that makes more power?

thanks
Top
 Profile  
 
 
Posted: Sat Jul 21, 2007 8:34 pm 
Getting Side Ways
Offline

Age: 28

Posts: 554

Joined: 24th Mar 2007

Gallery: 2 images

Ride: ef 5 speed

Location: melbourne
VIC, Australia

cam and exaush valves i am pretty sure

 

_________________

i am in need of a new front bar or good condation secondhand for a 95 ef futra,
lsd for a for ef ,modifed au sump to go in and ef , working air con compressor

Top
 Profile  
 
 
Posted: Sat Jul 21, 2007 8:39 pm 
Getting Side Ways
Offline

Age: 29

Posts: 2563

Joined: 19th Feb 2007

Gallery: 21 images

Ride: 98 EL Futura

Power: 199 rwkw

Location: Lilydale
VIC, Australia

The XR6 is 164kw and the VCT XR6 is 172kw

 

_________________

EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come

Top
 Profile  
 
 
Posted: Sat Jul 21, 2007 8:44 pm 
Getting Side Ways
Offline

Posts: 491

Joined: 19th May 2007

Ride: fairmont ED

Location: sydney
NSW, Australia

oh ok, should be simple enough to add those + more

whats a vct xr?
Top
 Profile  
 
 
Posted: Sat Jul 21, 2007 8:49 pm 
Getting Side Ways
Offline

Age: 29

Posts: 2563

Joined: 19th Feb 2007

Gallery: 21 images

Ride: 98 EL Futura

Power: 199 rwkw

Location: Lilydale
VIC, Australia

The VCT XR6 has variable cam timing, http://en.wikipedia.org/wiki/Variable_Cam_Timing, its surpose to have a better torque curve aswell. The VCT XR6 wasn't as quick as the normal 164kw XR6, because the VCT XR6 had IRS and had bit more weight.

 

_________________

EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come

Top
 Profile  
 
 
Posted: Sat Jul 21, 2007 8:51 pm 
Moderator
Offline

Posts: 14513

Joined: 7th Nov 2004

Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
NSW, Australia

jjohnno wrote:
oh ok, should be simple enough to add those + more

whats a vct xr?


vct = variable cam timing..

afaik the vct engine is in series 2 au xr6 and fairmont ghia..
and series 1 is pretty much the same as std au but has the tickford head and cam...
like the other xr's.
Top
 Profile  
 
 
Posted: Sun Jul 22, 2007 1:02 am 
Getting Side Ways
Offline
User avatar

Posts: 3363

Joined: 27th Dec 2004

Gallery: 4 images

Ride: MCMXCV Falcon

Location: G town
VIC, Australia

does anyone have or seen torque curve graphs of the vct and hp and std i6 motors.....be interesting to see the actual difference

 

_________________

Image

Top
 Profile  
 
 
Posted: Sun Jul 22, 2007 11:11 am 
Smokin em up
Offline
User avatar

Age: 46

Posts: 256

Joined: 13th Nov 2004

Ride: AU1 XR6 VCT

Location: Melbourne
VIC, Australia

TROYMAN wrote:
jjohnno wrote:
oh ok, should be simple enough to add those + more

whats a vct xr?


vct = variable cam timing..

afaik the vct engine is in series 2 au xr6 and fairmont ghia..
and series 1 is pretty much the same as std au but has the tickford head and cam...
like the other xr's.

VCT was avaliable in all the AU's from Series 1 to Series 3. I have one of the first AU XR6 VCT's, 1998 November build Series 1.

VCT had a different head, different cam and the VCT mechanism (build into the head). It also had factory fitted vernier gear (part of the mechanism) and a totally different ECU program. IRS was standard as was all power windows, power ariel and CD player. Exhaust from the cat back was a factory fitted 2" twin system (which was basically crap). Exhaust manifold to the cat was the same as HP XR6 (which was the same as the Forte).

As for the engine, it makes about the same power as the XR6HP when modded but is more fussy about exhaust and intake mods. Torque is generally a little better overall however not enough to counter the weight of the IRS and extra goodies.

Thats about all the obvious differences.

 

_________________

Image
AU XR6 VCT 14.57 @ 92.92mph.
Auto - NA - Unopened
Proudly tuned and prepared by G&D Performance Tuning - Get the Edge!

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 8 posts ] 

Who is online

Users browsing this forum: Google Adsense [Bot] and 24 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 Fri Dec 15, 2017 7:56 pm All times are UTC + 11 hours

 

 

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