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40 thou off the head? 

 

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 Post subject: 40 thou off the head?
Posted: Mon Jan 04, 2010 8:22 pm 
Tyre Shredder
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im looking into taking about 40 thou of my head as my enigine is being rebuilt
what problems can be caused by this?
and should my pistons be further fly cut?

 

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 Post subject: Re: 40 thou off the head?
Posted: Mon Jan 04, 2010 8:24 pm 
Tyre Shredder
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Location: Perth
WA, Australia

Why is it warped?
Just use high comp pistons if you are rebuilding it instead of shaving the head to bump up the comp.
If you shave too much it wont run on pump fuel and it will ping its a*** off, from high comp.
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 Post subject: Re: 40 thou off the head?
Posted: Mon Jan 04, 2010 8:26 pm 
Tyre Shredder
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Location: mackay
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nah just another fella on here did it and got a pretty respectable 1/4 mile run
who makes high comp pistons?

 

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xb falcon 500: currently being striped for full respray
ef falcon gli wagooon: currently finishing bodykit and then doors closed respray
the-garage-f53/ef-wagon-kit-pics-up-t77713.html

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 Post subject: Re: 40 thou off the head?
Posted: Mon Jan 04, 2010 8:39 pm 
Tyre Shredder
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Dont always just do what other people do dude, Might find it doesnt work the same on your motor :shock:
Maybe have a talk to your engine builder about it :D he can shed a professionals light on the subject
How spewin would you be if you rebuilt the motor and the comp was too high :( ping city...
Pretty sure acl do a couple of pistons for the 4.0
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 Post subject: Re: 40 thou off the head?
Posted: Mon Jan 04, 2010 8:48 pm 
Stock as a Rock
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it dont matter if you use high compression pistons or shave the head when you raise the compression so you will need a higher octane fuel to stop if from pinning.
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 Post subject: Re: 40 thou off the head?
Posted: Mon Jan 04, 2010 8:51 pm 
Tyre Shredder
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milo yeh i have been talking to them and they all reckon im just pissing into the wind as they have fully bombed one up and got nothing and yeh i had planned on an acl race series rebulid

big dell
yeh im planning to run at least caltex 98 or mayb consider a gas conversion

 

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xb falcon 500: currently being striped for full respray
ef falcon gli wagooon: currently finishing bodykit and then doors closed respray
the-garage-f53/ef-wagon-kit-pics-up-t77713.html

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 Post subject: Re: 40 thou off the head?
Posted: Mon Jan 04, 2010 9:08 pm 
Stock as a Rock
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Ride: 1992 EB hybrid monster

Location: mackay
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Hey Kelv, whats your goals with the motor??? You planning on using some forced induction down the track or you keeping it N/A? Which mechanic are you using in town as well?

 

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 Post subject: Re: 40 thou off the head?
Posted: Mon Jan 04, 2010 9:14 pm 
Tyre Shredder
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kelv_05ef_wagon wrote:
milo yeh i have been talking to them and they all reckon im just pissing into the wind as they have fully bombed one up and got nothing and yeh i had planned on an acl race series rebulid

big dell
yeh im planning to run at least caltex 98 or mayb consider a gas conversion


Warning bells are ringing, sounds to me like they dont know much/dont have experience with the old 4.0.
Id be talking to somewhere who has had a few good 4.0,s built to compare to before i gave them any cash,they sound a bit unsure dude.
You could spend 5 grand on a 4.0 but if its not tuned right it wont go :D
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 Post subject: Re: 40 thou off the head?
Posted: Mon Jan 04, 2010 9:19 pm 
Tyre Shredder
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Location: mackay
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yeh i know what you mean man but no one in mackay seems to have a clue as for tuning id more then likely be getting a pre programed chip from ti pef cause im not sure on hdts skills in mackay

and smithy msp doing it for me fairly cheap as its me uncles shop plans are for strip times as well as a lil drive ablity and nah p plater n/a for me

 

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xb falcon 500: currently being striped for full respray
ef falcon gli wagooon: currently finishing bodykit and then doors closed respray
the-garage-f53/ef-wagon-kit-pics-up-t77713.html

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 Post subject: Re: 40 thou off the head?
Posted: Mon Jan 04, 2010 9:20 pm 
Stock as a Rock
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Location: mudgee
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if you dont raise the comp to much it will be fine. and if you are contemplating boost then leave the comp how it is.
and you dont need forgies if it is going to be NA go with the au motor as they have lighter pistons and a better bottom end.
and how much power are you chasing.
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 Post subject: Re: 40 thou off the head?
Posted: Mon Jan 04, 2010 9:24 pm 
Tyre Shredder
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Location: mackay
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nah no chance on a turbo if that changes new motor time
yeh ive been told but im looking for abit of assurance is all

id like to see about 160rwkw probly dreaming but 400+ nm

 

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xb falcon 500: currently being striped for full respray
ef falcon gli wagooon: currently finishing bodykit and then doors closed respray
the-garage-f53/ef-wagon-kit-pics-up-t77713.html

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 Post subject: Re: 40 thou off the head?
Posted: Mon Jan 04, 2010 9:25 pm 
Getting Side Ways
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Ride: GREEN ED XR6

Power: 249 rwkw

Location: CENTRAL WEST QLD
QLD, Australia

have you tried to see what the performance shop oppersite the shell taxi rank (i think its the end of victoria st anyway its towards the end of that street on your left on the corner from memory) they can help you out i sure they deal with ford stuff or they specialize in ford engines only ?

 

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AU2 engine with Hoppers head/cam performance package & spool rods / CP pistons ,Snort 1200 plenum, T56 Manual & Billet short shifter, Front & Rear Slotted rotors, Pedders lowered suspension, LSD and tuned with EMS stinger 4424 347rwkw THE ED XR6 IS BOOSTED

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 Post subject: Re: 40 thou off the head?
Posted: Mon Jan 04, 2010 9:28 pm 
Tyre Shredder
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Location: mackay
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mky auto tech?

they are an engine rebulider
just general mech

 

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xb falcon 500: currently being striped for full respray
ef falcon gli wagooon: currently finishing bodykit and then doors closed respray
the-garage-f53/ef-wagon-kit-pics-up-t77713.html

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 Post subject: Re: 40 thou off the head?
Posted: Mon Jan 04, 2010 9:31 pm 
Getting Side Ways
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Posts: 627

Joined: 5th Dec 2009

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Ride: GREEN ED XR6

Power: 249 rwkw

Location: CENTRAL WEST QLD
QLD, Australia

yeah i had a mate get a ed xr8 worked on there he got a stroker kit and chipped and tuned there after it was all done it hauled a** and he has still got it to this day problem free made something like 400+hp and was running a low 13 to high 12 sec pass

 

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AU2 engine with Hoppers head/cam performance package & spool rods / CP pistons ,Snort 1200 plenum, T56 Manual & Billet short shifter, Front & Rear Slotted rotors, Pedders lowered suspension, LSD and tuned with EMS stinger 4424 347rwkw THE ED XR6 IS BOOSTED

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 Post subject: Re: 40 thou off the head?
Posted: Mon Jan 04, 2010 9:33 pm 
Tyre Shredder
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Age: 26

Posts: 371

Joined: 6th Jan 2009

Gallery: 21 images

Location: mackay
QLD, Australia

stuart by any chance?
ed xr8 stprint?

 

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xb falcon 500: currently being striped for full respray
ef falcon gli wagooon: currently finishing bodykit and then doors closed respray
the-garage-f53/ef-wagon-kit-pics-up-t77713.html

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