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Want recomendations of pistons for a 4.0lt with turbo 

 

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 Post subject: Want recomendations of pistons for a 4.0lt with turbo
Posted: Fri Mar 12, 2010 4:12 am 
Parts Gopher
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Hey all
if Anyone can help me I'd like that. Now I'm looking for good pistons to lower the compression in my falcon. Eb 4.0lt with turbo.... Only running 3 psi but really wanna pump more power out. So please feel free to give me some recomendations!
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 Post subject: Re: Want recomendations of pistons for a 4.0lt with turbo
Posted: Fri Mar 12, 2010 4:28 am 
Getting Side Ways
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Stock internals are good for around 300rwkw and 13psi fairly safe in an EB-D 4L

 

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 Post subject: Re: Want recomendations of pistons for a 4.0lt with turbo
Posted: Fri Mar 12, 2010 11:28 am 
Getting Side Ways
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Power: 482 rwkw

Location: Penrith
NSW, Australia

Seeing as you asked...
We use C.P http://www.cppistons.com/
The AU agents are http://www.qri.biz/
Or if your after rods and pistons ??
We have used Spool B.A rods & C.P pistons
to fit into E series motors..
http://www.spoolimports.com/content/SPO ... ONRODS.asp
They fly cut for the 2 valve head and size piston for correct gudgeon pin
clearance. Being full floating, they are a smaller size...
This also fits A.U engines where the rod length is the same..
An oversize E.A piston on a latter E series 4.0 [ bigger bore std] works also as the dish is deeper dropping compression..
Depending on your power goals?? 9.2 comp is ok with a street car with good tune..
Will have very throttle response and little better off / on boost torque at low rpm..
Lower comp does give wider envelope / margin to tune tho...
Forged assembly is way stronger.. But bad tune WILL kill any engine...
Spool rods..
Image
Spool rods & std rods, pistons.
Image
Assembled..
Image
We used ARP BA mains studs as well in AU engine.. The stud under oil pump req 10mm shortening to clear oil pump...
Image

 

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 Post subject: Re: Want recomendations of pistons for a 4.0lt with turbo
Posted: Fri Mar 12, 2010 5:46 pm 
Getting Side Ways
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+1 for Spool's and CP's.........

How many times has this been covered i wonder... :? ??????

 

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 Post subject: Re: Want recomendations of pistons for a 4.0lt with turbo
Posted: Sat Mar 13, 2010 2:27 pm 
Getting Side Ways
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Ride: Fordrunner 5.0 Turbo

Location: Wollongong
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In the pics above am I correct in guessing they are two different rods?

Top pic is I beam rods and middle pic shows H beam rods?

Generally which would be the stronger rod?
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 Post subject: Re: Want recomendations of pistons for a 4.0lt with turbo
Posted: Sat Mar 13, 2010 5:20 pm 
Parts Gopher
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Ride: ea fairmont ghia

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Ey thanks everyone :)
well I just wanna be able to run at least 10 psi as a minimum. That's just for everyday street use too... But I don't want the motor to blow up in like 6 months..
I do know the standard motor can handle a fair wack of boost but as I just said I don't wanna be rebuilding the engine in 6 months time. So I'm looming for pistons to lower my compression. Not going with a decompression plate.. But I just don't know what sorta pistons to use.
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 Post subject: Re: Want recomendations of pistons for a 4.0lt with turbo
Posted: Sun Mar 14, 2010 10:52 pm 
Getting Side Ways
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Power: 482 rwkw

Location: Penrith
NSW, Australia

xcabbi wrote:
In the pics above am I correct in guessing they are two different rods?

Top pic is I beam rods and middle pic shows H beam rods?

Generally which would be the stronger rod?

Aha yea those I beams are Argo rods for my 1UZ Celica..
http://www.argorace.com.au/index.cfm?menukey=12
They are rated at 200 h.p per rod..
They are about twice the price of Spool rods for 8 of them..

 

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As in ZOOM 126 edition
331 Dart block,3.25/ 4340 steel crank, Oliver rods,TFS ported track heat heads, TFS track heat inlet Twin SC61 turbo's
Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

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