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displaying posts 1 to 25 of 29
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| Author | Subject: 88mm (diesel) crank conversion |
 paul_13
Senior User  Location: Reading Registered: 10 Dec 2008 Posts: 693 Status: Offline |
Post #1
Is the diesel/1.9MI crank conversion possible with the 6 engine?I've only ever heard it done with the S16 engine. What have I got to look out for? Thanks ________________________________________ 205 GTI6- Rebuilt engine, lightened flywheel, lightened pulley, 307 hdi brakes, Koni struts on gravel spec springs, 22mm TB's, 24mm ARB, Roll cage, Citreon ZX rear dampers, SL434's, Xsara box, Quickrack, Pipercross enclosed induction kit. Private work, not a prob |
 Posted 11th Jul 2009 at 06:50
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matty_rallye
Senior User  Location: Devizes Registered: 28 Oct 2005 Posts: 966 Status: Offline |
Post #2
Yes it is ok to fit, im running a 1.9d crank in mine!________________________________________ 2.1 16v 306 Rallye. |
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Posted 11th Jul 2009 at 14:22
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paul_13
Senior User Location: Reading Registered: 10 Dec 2008 Posts: 693 Status: Offline |
Post #3
What bearings and thrust bearings did you use?Did you get a thicker headgasket? ________________________________________ 205 GTI6- Rebuilt engine, lightened flywheel, lightened pulley, 307 hdi brakes, Koni struts on gravel spec springs, 22mm TB's, 24mm ARB, Roll cage, Citreon ZX rear dampers, SL434's, Xsara box, Quickrack, Pipercross enclosed induction kit.Private work, not a prob |
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Posted 11th Jul 2009 at 17:26
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carl.swan
Regular  Location: Rugby Registered: 16 Dec 2003 Posts: 234 Status: Offline |
Post #4
which diesel engine is it then? 306TD?________________________________________ 8th 200814th 2007 29th 2006 (Novice Year) Yokohama Demon Tweeks Stock Hatch Championship swanracing on youtube for video's |
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Posted 12th Jul 2009 at 15:43
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mattb-6
Regular  Location: Chelmsford Registered: 18 Jun 2007 Posts: 324 Status: Offline |
Post #5
You can run standard bearings, or whatever you require for your crank main bearing sizes if its been reground.You will ideally need different pistons which will need to be machined (2mm removed from crown) to sit flush with the block at TDC, this also requires larger valve reliefs (2mm deeper) to be machined. I'm not sure if theres enough material on the standard to pistons to allow these to be machine, but I think that would be a bit risky. By doing all this you keep the head gasket/head all the same. The crank would be from a 1.9td XU engine. ________________________________________ No more Pugs... Team Focus RS now |
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Posted 12th Jul 2009 at 15:55
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paul_13
Senior User Location: Reading Registered: 10 Dec 2008 Posts: 693 Status: Offline |
Post #6
It will be a 1.9TD crank from a 306.Thanks for the advice Mattb-6, I am looking to buy a spare block at some point and build this up gradually, then put the engine in place. When you say valve reliefs, is that the valve seats? Sorry i'm not that clued up on engine terms, I know the basics. Also standard bearings from a gti6 or diesel? ________________________________________ 205 GTI6- Rebuilt engine, lightened flywheel, lightened pulley, 307 hdi brakes, Koni struts on gravel spec springs, 22mm TB's, 24mm ARB, Roll cage, Citreon ZX rear dampers, SL434's, Xsara box, Quickrack, Pipercross enclosed induction kit.Private work, not a prob |
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Posted 12th Jul 2009 at 16:01
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welshpug!
Capt Pedantic  Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,838 Status: Offline |
Post #7
S16 rods + pistons, no machining  ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 12th Jul 2009 at 16:03
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paul_13
Senior User Location: Reading Registered: 10 Dec 2008 Posts: 693 Status: Offline |
Post #8
Bugger! Just sent some out to portugal to a forum member ________________________________________ 205 GTI6- Rebuilt engine, lightened flywheel, lightened pulley, 307 hdi brakes, Koni struts on gravel spec springs, 22mm TB's, 24mm ARB, Roll cage, Citreon ZX rear dampers, SL434's, Xsara box, Quickrack, Pipercross enclosed induction kit.Private work, not a prob |
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Posted 12th Jul 2009 at 16:19
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mattb-6
Regular Location: Chelmsford Registered: 18 Jun 2007 Posts: 324 Status: Offline |
Post #9
By valve releifs I mean the machining in the top of the pistons to cater for the valves.Even with S16 internals I think you will need to do some machining. The S16 is designed for an 86mm stroke and so with 88mm stroke at TDC the piston crown will be sitting 1mm above the block deck which basically is not good. I would suggest you would want to take 1mm of the top of the pistons so that it sits flush and keeps your squish volume correct. As for bearings, you can in theory run either diesel or gti6. I would personally stick with the gti6 bearings (or uprated versions of them). ________________________________________ No more Pugs... Team Focus RS now |
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Posted 12th Jul 2009 at 22:42
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carl.swan
Regular Location: Rugby Registered: 16 Dec 2003 Posts: 234 Status: Offline |
Post #10
1.9 8v xu no good? I have a 205 1.9 engine that i could strip down________________________________________ 8th 200814th 2007 29th 2006 (Novice Year) Yokohama Demon Tweeks Stock Hatch Championship swanracing on youtube for video's |
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Posted 12th Jul 2009 at 23:32
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paul_13
Senior User Location: Reading Registered: 10 Dec 2008 Posts: 693 Status: Offline |
Post #11
I have a set of 1.9 8v pistons but i've a feeling they're no good. Oh well will have to get some forged jobbies Is this conversion a no go with cams aswell? ________________________________________ 205 GTI6- Rebuilt engine, lightened flywheel, lightened pulley, 307 hdi brakes, Koni struts on gravel spec springs, 22mm TB's, 24mm ARB, Roll cage, Citreon ZX rear dampers, SL434's, Xsara box, Quickrack, Pipercross enclosed induction kit.Private work, not a prob |
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Posted 13th Jul 2009 at 04:02
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mattb-6
Regular Location: Chelmsford Registered: 18 Jun 2007 Posts: 324 Status: Offline |
Post #12
It will be no problem using uprated cams, but you will need to increase the valve relief depth further to give clearance for any higher lift/longer duration cams. ________________________________________ No more Pugs... Team Focus RS now |
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Posted 13th Jul 2009 at 13:28
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,838 Status: Offline |
Post #13
S16 pistons are flat top and sit 1mm below deck on an 86mm crank,  ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 13th Jul 2009 at 17:16
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mattb-6
Regular Location: Chelmsford Registered: 18 Jun 2007 Posts: 324 Status: Offline |
Post #14
Really, interesting to know.From memory, the valve reliefs on the S16 pistons is very small - I would imagine these would need increasing at least... ________________________________________ No more Pugs... Team Focus RS now |
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Posted 13th Jul 2009 at 18:16
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,838 Status: Offline |
Post #15
no, the S16 ones are huge compared to the gti6.________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 13th Jul 2009 at 18:38
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paul_13
Senior User Location: Reading Registered: 10 Dec 2008 Posts: 693 Status: Offline |
Post #16
What kind of BHP/torque figures have people gained from this conversion compared to the standard crank?________________________________________ 205 GTI6- Rebuilt engine, lightened flywheel, lightened pulley, 307 hdi brakes, Koni struts on gravel spec springs, 22mm TB's, 24mm ARB, Roll cage, Citreon ZX rear dampers, SL434's, Xsara box, Quickrack, Pipercross enclosed induction kit.Private work, not a prob |
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Posted 13th Jul 2009 at 22:13
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16v205
Junior User  Location: Redditch Registered: 30 May 2005 Posts: 71 Status: Offline |
Post #17
HiAre you on drivers at all? I built a 2140cc engine with a few extra bits. Clicky Rich ________________________________________ 205 Gti-6 223bhp & 190lb/ft, still running in |
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Posted 15th Jul 2009 at 19:51
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paul_13
Senior User Location: Reading Registered: 10 Dec 2008 Posts: 693 Status: Offline |
Post #18
I am indeed mate, just had a glance.Very interesting read, basically a step by step guide ________________________________________ 205 GTI6- Rebuilt engine, lightened flywheel, lightened pulley, 307 hdi brakes, Koni struts on gravel spec springs, 22mm TB's, 24mm ARB, Roll cage, Citreon ZX rear dampers, SL434's, Xsara box, Quickrack, Pipercross enclosed induction kit.Private work, not a prob |
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Posted 15th Jul 2009 at 23:05
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mattb-6
Regular Location: Chelmsford Registered: 18 Jun 2007 Posts: 324 Status: Offline |
Post #19
A few months back I read on 205drivers about a guy who ran one of the 2.1td cranks in an S16 block.I happen to have one of these cranks sitting in my garage however the big ends measure 2mm wider than the standard XU10J4RS engine. Anyone know how the guy got around this, I'm pretty sure he was running S16 rods... This Thread! ________________________________________ No more Pugs... Team Focus RS now |
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Posted 16th Jul 2009 at 20:27
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paul_13
Senior User Location: Reading Registered: 10 Dec 2008 Posts: 693 Status: Offline |
Post #20
Ah Sarty's build, i'll have a gander over it and come up with an answer.Another bloke on 205 drivers used the diesel thrust bearing and put a few tacks on with the welder then ground them off to size to make up the tolerance issues. ________________________________________ 205 GTI6- Rebuilt engine, lightened flywheel, lightened pulley, 307 hdi brakes, Koni struts on gravel spec springs, 22mm TB's, 24mm ARB, Roll cage, Citreon ZX rear dampers, SL434's, Xsara box, Quickrack, Pipercross enclosed induction kit.Private work, not a prob |
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Posted 16th Jul 2009 at 21:53
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mattb-6
Regular Location: Chelmsford Registered: 18 Jun 2007 Posts: 324 Status: Offline |
Post #21
paul_xiii wrote: Ah Sarty's build, i'll have a gander over it and come up with an answer. Another bloke on 205 drivers used the diesel thrust bearing and put a few tacks on with the welder then ground them off to size to make up the tolerance issues. Cheers - I tried to register to ask the question, but it said the board is no longer accepting new registrations...  ________________________________________ No more Pugs... Team Focus RS now |
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Posted 16th Jul 2009 at 23:50
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,838 Status: Offline |
Post #22
send one of the admin an email, they're doing it manually at the moment I believe________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 17th Jul 2009 at 03:58
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ryangti6
Seasoned Pro  Location: Pontypool Registered: 01 Sep 2006 Posts: 1,839 Status: Offline |
Post #23
Ive been looking into doing this too the 1800 bottom end.Does anyone know whats needed to do this? Sorry for the ot Paul. ________________________________________ Ryan |
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Posted 17th Jul 2009 at 20:32
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snooks
Junior User Location: Bergen Registered: 09 Jan 2009 Posts: 80 Status: Offline |
Post #24
ryangti6 wrote: Ive been looking into doing this too the 1800 bottom end. Does anyone know whats needed to do this? Sorry for the ot Paul. There are some good threads on 205drivers regarding this engine also. Best conversion using the XU7 engine is Mi interals with a XU10J4RS head. |
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Posted 17th Jul 2009 at 20:43
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paul_13
Senior User Location: Reading Registered: 10 Dec 2008 Posts: 693 Status: Offline |
Post #25
What crank is better to use the 1.9 16v MI crank or the 306 diesel?I think one is fully counterweighted other isn't, also what about bearing width on both? ________________________________________ 205 GTI6- Rebuilt engine, lightened flywheel, lightened pulley, 307 hdi brakes, Koni struts on gravel spec springs, 22mm TB's, 24mm ARB, Roll cage, Citreon ZX rear dampers, SL434's, Xsara box, Quickrack, Pipercross enclosed induction kit.Private work, not a prob |
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Posted 17th Jul 2009 at 21:44
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