XR2i to turbo, is it really that easy ?

CVH and Zetec tuning, suspension and braking mods.

Postby Panther on Fri Aug 03, 2001 7:16 am

To convert 1.6 CVH 2i to FRST, is it just a case of swapping the head/cam, slapping on a turbo, changing the ECU and that's it, or is it alot more complex than this ?

I know FRST uses a slightly different (stronger) crank, but what else ?
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Postby mmogenius on Fri Aug 03, 2001 7:28 am

erm different pistons i think aswell mate

but i dont know about that one :sad:
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Postby JJ on Fri Aug 03, 2001 8:05 am

Been there, done it, got the T-shirt. My turbo used to be a G-reg XR2i!!
See my site gallery for pics old and new! http://www.fiestas.mcmail.com/

Anyway, to do the conversion, you'll need:-
* New crank (FRST is fillet rolled for strength)
* New pistons (flat, not dished/crowned)
* New cam (no need to change head, though the XR2i/FRST are different)
* ECU - OFAB or OFAC
* MAP sensor (to match ECU)
* New FRST charge air temp. sensor (took me ages to find that one!)
* AMAL valve
* Turbo
* Exhaust manifold, system
* Engine loom (although only 1 wire is different, so you can just add it, as I have done)
* Oil cooler
* All turbo oil feed/return pipes
* Crossover pipe
* Rad/fan
* Intercooler
* Coolant pipework
* Air pipework

...and that's _all_ :grin:
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Postby Panther on Tue Aug 07, 2001 7:34 am

Are the flat top pistons required just to correct the Compression ratio ?
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Postby JJ on Tue Aug 07, 2001 7:39 am

No idea, sorry!
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Postby Excursion on Tue Aug 07, 2001 4:49 pm

The combustion chamber must be in the head on frsts, so the pistons area must or you will end up with a much lower c/r tahn required!

Well in this case surely the ford xr2i pistons area cheap way to lower the c/r in a fiesta turbo? I guess the turbo pistons have a larger dome and corner radii but its gotta be worth a shot :smile:
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Postby Excursion on Tue Aug 07, 2001 4:49 pm

The combustion chamber must be in the head on frsts, so the pistons area must or you will end up with a much lower c/r tahn required!

Well in this case surely the ford xr2i pistons area cheap way to lower the c/r in a fiesta turbo? I guess the turbo pistons have a larger dome and corner radii but its gotta be worth a shot :smile:
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Postby Excursion on Tue Aug 07, 2001 4:50 pm

*so the turbo pistons must be used or you will end up with a much lower c/r than required!
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Postby bumpy on Tue Sep 04, 2001 4:49 am

Word of warning stu, get the exhaust business right. Mine since the T3 went in still clanks as we welded it further up and it clanks a little against the bracket on acceleration, so although shes running sweet the clanking drives me mad. We've tried grinding it a bit and tis fine for a bit then comes back - hoping that tightening up the engine mounts to pull it all up will do the trick.

Make sure you've got plenty of time to do it properley and arent rushed, we were welding at midnight trying to get her ready for the Gaydon show. Bad move

Also make sure you've got plenty of clearance between the turbo and the radiator, mines definately running a lot hotter since the conversion - looking at getting a chargecooler now.

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Postby Tai-lee on Mon Sep 10, 2001 4:59 am

Hey, I drive an XR2i and would like it to be converted to a Turbo, I've read the messages previous but wondered if I was to get this done via a garage, what would be a reasonable price? :Q
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Postby JJ on Tue Sep 11, 2001 7:25 am

The simple answer is to get yourself a turbo engine and transplant it. By the time you've bought all new parts to convert your XR2i, then paid the labour, you could have had a 2.0 16V or Ze-VH, etc. :eek:
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