st170 rs focus transplant
20-06-2010, 01:41 PM
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st170 rs focus transplant
hi folks new to this forum and need some help......got a 53 plate st 170 and chance to get rs drivetrain what bits do i need to transplant and are there any comminality between the st and rs? many thanks guys..
20-06-2010, 06:15 PM
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yerr ive bought the front end bulkhead forward just waiting to get em side by side need. ecu rear suspension interior arches just wondering wether the looms match up...and anything thats on the st thats on an rs...
Last edited by ste 170; 20-06-2010 at 06:19 PM.
20-06-2010, 07:17 PM
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not being funny mate i woudl read up on it before you do anything because it sounds like your not 100% on what your doing not having a dig at all.
but pumaspeed has been around for ages that is the only reason i say that hah
but pumaspeed has been around for ages that is the only reason i say that hah
20-06-2010, 07:26 PM
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nope havent the foggiest.. last car i did was an mi16 205 pushin out 260 at wheels but vast cos experience and a good spannerman so im not daunted....lol the car ive bought is a cat d excellently repaired full ford service history at a very naughty steal of a price. i can aquire a legal FRS bulkhead forward for £1500.im asking the questions that i can probably solve myself when i crack on with it.id really like to just pay someone who knows what there doing with them ie puma speed.conor mate no offense taken lol but if i knew all the answers i wouldnt be askin hence postin on a forum
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20-06-2010, 07:32 PM
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hah good godo mate dident want to offened 
but yeah very true what forums are here for i suspose..
someone like pumaspeed im not 100% but i dont think they will touch the sorta work you want doing. i might be wrong.
but what ever you do sounds like a great plan
but yeah very true what forums are here for i suspose..someone like pumaspeed im not 100% but i dont think they will touch the sorta work you want doing. i might be wrong.
but what ever you do sounds like a great plan
20-06-2010, 08:00 PM
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cheers connor i hear they have a name for puttin racin puma engines in all sorts and seem to know there stuff frs wise on the site.ive sent an email to them detailing ideas and budget which to be honest i could buy a lower priced rs but where i live ive already had my front door off for keys. i was hoping it was all bolt up plug and go its the looms i want info on most.my friend reckons the st and rs arnt a million miles apart underneath.....but who listens to friends advice lol surely someones done it before.....
20-06-2010, 09:53 PM
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I think his name is Alex the Kid? well anyway a guy did it to a focus but wanted to keep the other comforts the RS lacked, anyway IIRC he just got a whole doner rs to switch bits, be interested in seeing it as its what i have thought about if the engine ever gives up on mine
20-06-2010, 10:38 PM
#11
there the same underneith! the rs engine is just a 2l zetec lump so it will drop in the focus no trouble at all! all the mounts are availible! you will want the engine and interior loom and dials key ect that relates to the rs engine! all the sub frames and stuff you can keep as they will work fine! the rs has a wider track but you wont need that on the st170. the rs also uses the same driveshafts as the st170 so they wont be a problem! only other thing is the chargecooler setup and the fuel pump! pretty easy conversion if you know what your doing! personaly i wouldnt touch pumaspeed or pumabuild with a barge pole! only out there for your money! there are few companys i would trust in this day in age with having your car word of warning!
do it yourself it will be nicer knowing you have done it in the end
word of warning!do it yourself it will be nicer knowing you have done it in the end
20-06-2010, 10:56 PM
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yes young ben exactly the info i needed to know plz tell me more lol ive had a feelin bout driveshafts hubs and stuff cus of the offset on the rs wheels made me suspicous.you said i need the interior loom is that as well as rs engine loom? do they just plug in?what do i do about the charge cooler ? i take it i need to use rs fuel pump? please ben absolutley any info is much appreciated..thanks mate
21-06-2010, 12:16 AM
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why dont u keep the 6 speed gear box and get a new flywheel and clutch to get rid of the dmf that way you can keep all ur st drive shafts and hubs. drop in the rs engine the mount should fit sort the loom swap over the brakes
21-06-2010, 06:29 AM
#15
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hi mate i was doing an rs into st conversion before i was offered the rs shell so i looked into a few things.
as previously said the rs track is wider, and unless your fitting the rs arches front and rear your going to have to stick to the st170 subframes and hubs all round, but the engine and box will slot straight in yes.
you do need the rs loom from the bulkhead forwards (3 parts) you also need the rs fuel pump and clocks, and all the obvious stuff like the rs radiators e.t.c
but the rs and st shafts are NOT the same (sorry ben) the spline sizes are different on the st and will not fit with the rs box (st shafts ok if you keep the st box though) and the rs shafts are longer, so therefore neither will work with this conversion.
you need the tdci diesel shafts, i believe the 2.0 petrol shafts also fit fine but cant handle as much torque as the diesel shafts so for reliability your best off with the diesel shafts
you will also need to use the driveshaft bracket from which ever driveshafts you decide on, and you will have to modify this so it will bolt up to the rs engine where the original shaft bracket used to bolt up, as the rs shaft bracket will not fit the other driveshafts
all dead easy and straight forward to do too if you handy with spanners.
good luck
as previously said the rs track is wider, and unless your fitting the rs arches front and rear your going to have to stick to the st170 subframes and hubs all round, but the engine and box will slot straight in yes.
you do need the rs loom from the bulkhead forwards (3 parts) you also need the rs fuel pump and clocks, and all the obvious stuff like the rs radiators e.t.c
but the rs and st shafts are NOT the same (sorry ben) the spline sizes are different on the st and will not fit with the rs box (st shafts ok if you keep the st box though) and the rs shafts are longer, so therefore neither will work with this conversion.
you need the tdci diesel shafts, i believe the 2.0 petrol shafts also fit fine but cant handle as much torque as the diesel shafts so for reliability your best off with the diesel shafts
you will also need to use the driveshaft bracket from which ever driveshafts you decide on, and you will have to modify this so it will bolt up to the rs engine where the original shaft bracket used to bolt up, as the rs shaft bracket will not fit the other driveshafts
all dead easy and straight forward to do too if you handy with spanners.
good luck
Last edited by atm; 21-06-2010 at 06:32 AM.
21-06-2010, 04:48 PM
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some people say the st gearbox isnt matched to the rs engine power band and peak torque rpm e.t.c. but i havnt driven an rs with an st box so i couldnt say, but focustardpie has already just anwered this for you above
21-06-2010, 06:13 PM
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the only down side i can see is that you lose the quaife atb diff.. which in my opinion is a big loss!
some people say the st gearbox isnt matched to the rs engine power band and peak torque rpm e.t.c. but i havnt driven an rs with an st box so i couldnt say, but focustardpie has already just anwered this for you above
some people say the st gearbox isnt matched to the rs engine power band and peak torque rpm e.t.c. but i havnt driven an rs with an st box so i couldnt say, but focustardpie has already just anwered this for you above
They bang on the same? as in bolts match?
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