MexicanBatman G666E Turbo!!! Member 1,008 Member For: 15y 6m 4d Gender: Male Posted 19/09/11 07:57 AM Share Posted 19/09/11 07:57 AM So does anyone know what the actual differences are between FG XR FG F6 and BFII engines? Other than the obvious and compression ratio differences do the FG XR's run weaker rods/pistons etc... Than the others, I've googled and have gotten different answers, I just want to know how far the factory FG XR can be pushed before it's broken as an averageThanks Link to comment https://www.fordxr6turbo.com/forum/topic/76983-actual-engine-differences/ Share on other sites More sharing options...
bluprinturbo Donating Members 605 Member For: 17y 2m 9d Gender: Male Location: brisbane Posted 21/09/11 03:33 AM Share Posted 21/09/11 03:33 AM rods are the same in all.forged pistons in f6. better head in fg xr/f6. compression ratio 8.8:1. 350rwkws would be a sensible power level. Link to comment https://www.fordxr6turbo.com/forum/topic/76983-actual-engine-differences/#findComment-1142880 Share on other sites More sharing options...
Dillz Three pedals are better then two.. Donating Members 15,637 Member For: 18y 1m 24d Gender: Male Location: Melbourne Posted 21/09/11 04:20 AM Share Posted 21/09/11 04:20 AM Bam! Case closed. Link to comment https://www.fordxr6turbo.com/forum/topic/76983-actual-engine-differences/#findComment-1142893 Share on other sites More sharing options...
MexicanBatman G666E Turbo!!! Member 1,008 Member For: 15y 6m 4d Gender: Male Posted 21/09/11 05:59 AM Author Share Posted 21/09/11 05:59 AM Thanks! Link to comment https://www.fordxr6turbo.com/forum/topic/76983-actual-engine-differences/#findComment-1142913 Share on other sites More sharing options...
Snapper Bronze Donating Members 320 Member For: 14y 3m 1d Gender: Male Posted 02/10/11 09:59 AM Share Posted 02/10/11 09:59 AM What about a fg f6 limits Link to comment https://www.fordxr6turbo.com/forum/topic/76983-actual-engine-differences/#findComment-1145764 Share on other sites More sharing options...
bluprinturbo Donating Members 605 Member For: 17y 2m 9d Gender: Male Location: brisbane Posted 02/10/11 01:25 PM Share Posted 02/10/11 01:25 PM even though they have a better piston, it still comes down to the rods. 350rwkws is as high as I would go. the rest of the driveline will cope with that aswell, depending on what you do with your car. guys are getting longevity with 400+ but its still risky. Link to comment https://www.fordxr6turbo.com/forum/topic/76983-actual-engine-differences/#findComment-1145798 Share on other sites More sharing options...
SuckSqueezeBangBlow ʎǝʞuoɯ ɹoıuǝs Donating Members 1,808 Member For: 16y 7m 4d Gender: Male Posted 02/10/11 09:48 PM Share Posted 02/10/11 09:48 PM is it just the FG F6 which has the forged pistons? Link to comment https://www.fordxr6turbo.com/forum/topic/76983-actual-engine-differences/#findComment-1145818 Share on other sites More sharing options...
bluprinturbo Donating Members 605 Member For: 17y 2m 9d Gender: Male Location: brisbane Posted 03/10/11 02:44 AM Share Posted 03/10/11 02:44 AM that's right mate. they have a mahle forged piston. Link to comment https://www.fordxr6turbo.com/forum/topic/76983-actual-engine-differences/#findComment-1145889 Share on other sites More sharing options...
Dillz Three pedals are better then two.. Donating Members 15,637 Member For: 18y 1m 24d Gender: Male Location: Melbourne Posted 03/10/11 02:55 AM Share Posted 03/10/11 02:55 AM Is this 100% confirmed? Why would they go to all the effort when they can just throw a blue rocker cover on? Link to comment https://www.fordxr6turbo.com/forum/topic/76983-actual-engine-differences/#findComment-1145890 Share on other sites More sharing options...
g6t Silver Donating Members 328 Member For: 15y 3m 4d Gender: Male Location: sunshine state Posted 03/10/11 04:29 AM Share Posted 03/10/11 04:29 AM (edited) I have read elsewhere fg xr fg f6 pistons have same part number, I have not confirmed this, rdp fg xr6t got 643.5 rwhp with head studs, valve springs, billit oil pump gears, stock other wise. Edited 03/10/11 04:29 AM by g6t Link to comment https://www.fordxr6turbo.com/forum/topic/76983-actual-engine-differences/#findComment-1145900 Share on other sites More sharing options...
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