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| rannaman |
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hey guys my old boy has just decided he wants to build a 4 ltr stroker in the old xr6 wagon. i am a newbie to this site so sorry if this has been a very repeticious question but any info on cost and what is involved would be appreciated.
cheers guys ben |
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| stockstandard |
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rannaman wrote: hey guys my old boy has just decided he wants to build a 4 ltr stroker in the old xr6 wagon. i am a newbie to this site so sorry if this has been a very repeticious question but any info on cost and what is involved would be appreciated.
cheers guys ben Why you would want to stroke a 4l is beyond me. The stroke is already ridiculously long.
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| mrnasty |
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long story short, i dont think you can stroke a 4L.
_________________ Cougar Zero makes my pants fit nice. |
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| Soulfire |
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you can stroke it but there'll be no advantage to it.
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| rannaman |
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ok guys thanx for that. like i sed im a newbie to the ford stuff im more interested in my toranas so i no zipo about the ford gear.
what would you guys recomend that i do with the wagon then? big injectors cam and a chip... what sort of power can the stock head flow? |
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| stockstandard |
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head is good for 150rwkw 'ish. Same with the stock injectors
maybe start here - http://www.fordmods.com/forums/viewtopic.php?t=66
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| tickford_6 |
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Posts: 6449 Joined: 11th Nov 2004 |
you'd get more benifit from DE-stroking it back to 3.8 using a 40thou bore.
at least then you could rev the thing |
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| rannaman |
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thankx guys for the info most helpfull. might go for a small super charger instead of stroking idea!
just out of curiousity what is the bore and stroke of the old 4 ltr?? |
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| rannaman |
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how would oversizing the bore 40" decrease cacpacity? unless your talking about bore to stroke ratio or something??
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| stockstandard |
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rannaman wrote: thankx guys for the info most helpfull. might go for a small super charger instead of stroking idea!
just out of curiousity what is the bore and stroke of the old 4 ltr?? be careful with that idea - a small supercharger will choke a 4.0 so make sure its big enough. Dont go any smaller than a m90 or powerdyne or you wont be happy with the outcome btw - bore is ~92mm, stroke is ~99mm
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| rannaman |
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ok then cheers for that mate ill look into the blower side of it some more i think.
ben |
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| downingj |
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Surely there would be a gain by stroking it out to 4.2 -4.3 litres? I know the stroke is long, but it's not like the 4.0 litre is a revvy unit to begin with?
It would be an interesting excersize  Maybe if I win tatts one day, I'll do it for s**t and giggles.
But yeah, when modding the Falcon 6, speak to as MANY people as you can. |
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| stockstandard |
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downingj wrote: Surely there would be a gain by stroking it out to 4.2 -4.3 litres? I know the stroke is long, but it's not like the 4.0 litre is a revvy unit to begin with?
It would be an interesting excersize Maybe if I win tatts one day, I'll do it for s**t and giggles.But yeah, when modding the Falcon 6, speak to as MANY people as you can. The 4.0 doesnt rev because its already a stroker. The geometry is really poor in the bottom end. Long strokes are good for tractors or passenger cars but not good for performance.
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| tickford_6 |
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Posts: 6449 Joined: 11th Nov 2004 |
rannaman wrote: how would oversizing the bore 40" decrease cacpacity? unless your talking about bore to stroke ratio or something??
it wouldn't. what i was saying is decrease the stroke to to the piont at which you get 3.8L when using a 40thou over bore. you would end up with a square engine at about 93.3mm stroke and bore with a piston speeds of 4285 at 7000rpm as aposed to 4561 for the stock stroke. you'd also get a 6mm longer rod which will help alot witht he poor stroke rod ratio the engine has |
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| rannaman |
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ok then fellas so i gota try and square the old girl up as its got a huge stroke already i get yas cheers for the input much appreciated!
ben |
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