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displaying posts 1 to 16 of 16
| Author | Subject: 2.1 Crank |
 kezman7
Senior User  Location: Castleford Registered: 20 Feb 2009 Posts: 762 Status: Offline |
Post #1
Reading about the Diesel crank and that would need custom pistons 1mm shorter to accomedate the longer travel.Possibly the most stupid question ever but would it not be possible to use a thicker head-gasket to give just the right amount needed? |
 Posted 11th Mar 2010 at 05:50
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welshpug!
Capt Pedantic  Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,839 Status: Offline |
Post #2
you'd need 4mm for a 2.1 crank.so no a thicker gasket wont help. ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 11th Mar 2010 at 16:27
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bobdylan_55
Seasoned Pro  Location: derby Registered: 28 Mar 2009 Posts: 1,466 Status: Offline |
Post #3
gti6 stroke is 86mm, 2.1 is 92mm, so 6mm total, 3mm either way, so you would need to find 3mm not 1. if you used it on a 1.9 block though with 83mm pistons which run 88mm stroke, then its 4mm difference in total, or 2mm either side. 2mm could be acheived by having a small amount of material removed from the top of piston and a small head skim, and a repair gasket. but then its 83x92 which is only going to give 1991cc, so you would get more out of a standard 2.0 (1998cc) ________________________________________ 309 GTi6-T |
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Posted 11th Mar 2010 at 17:01
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ryangti6
Seasoned Pro  Location: Pontypool Registered: 01 Sep 2006 Posts: 1,839 Status: Offline |
Post #4
I would assume reading the original post he meant an 88mm stroke diesel crank in place of the 86mm to send him up towards a 2.1 bottom end. It would make sense then anyway.Kezman, have a look on 205drivers, there are a good couple of threads detailing swapping cranks etc and what can be swapped with what. Depending on what crank you do mean then I think you could possibly use s16 rods as they are ~5mm shorter than the gti6 ones iirc ________________________________________ Ryan |
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Posted 11th Mar 2010 at 17:12
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,839 Status: Offline |
Post #5
arrr maths fail in my post  I see what you mean Ryan, you can do this to an Mi/S16 iron block bottom end as the pistons are flat topped and sit 0.7mm under deck level. you also have quite a lot more space in an RFY engine as the chamber in th ehad is a tad bigger and they have pretty hefty valve cutours compared with the RFS S16 rods are 152mm, gti6 are 158mm, bit too much difference there  ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 11th Mar 2010 at 17:21
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bobdylan_55
Seasoned Pro Location: derby Registered: 28 Mar 2009 Posts: 1,466 Status: Offline |
Post #6
the rod length wont matter because the pistons are different hieghts, works out that the s16 pistons and rods are 1mm shorter in total. as for the 88mm crank, didnt think of that lol 86x88 = 2045cc ________________________________________ 309 GTi6-T |
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Posted 12th Mar 2010 at 03:36
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kezman7
Senior User Location: Castleford Registered: 20 Feb 2009 Posts: 762 Status: Offline |
Post #7
Hmm so its not as straight forward as i was thinking/hoping. Might get in touch with carl or rich see what they think/can do. Is it really a worthwhile mod? |
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Posted 17th Mar 2010 at 04:21
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roland rat
Yeeeah Rat fans!  Location: Swansea Registered: 29 Nov 2006 Posts: 22,284 Status: Offline |
Post #8
kezman7 wrote: Hmm so its not as straight forward as i was thinking/hoping. Might get in touch with carl or rich see what they think/can do. Is it really a worthwhile mod? What are your plans? |
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Posted 17th Mar 2010 at 04:22
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,839 Status: Offline |
Post #9
depends if you're going n/a or supercharged, no point really if you're going S/C.________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 17th Mar 2010 at 04:44
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kezman7
Senior User Location: Castleford Registered: 20 Feb 2009 Posts: 762 Status: Offline |
Post #10
I was wanting abit more power but to keep the engine N/A but i think iv overrated it or got the info iv read up on wrong. |
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Posted 17th Mar 2010 at 04:45
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mxcrazy
Regular Location: hastings Registered: 22 Jun 2009 Posts: 456 Status: Offline |
Post #11
Get some 87 or 88mm pistons made, i can supply you drawings for 88mm pistons that will work with the 1.9td 88mm crank and stock GTi rods to give you 2139cc, not only are you increasing displacement, but with my particular pistons compression also, it also give you more scope to have the combustion chamber modified, mainly to un-shroud the valves to improve low lift flow. Plus i have huge cut outs to run 'big' cams if need be.Alternatively get some off the shelf pistons, oversize, and get some rods made, think you can have them made for about |
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Posted 17th Mar 2010 at 14:51
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daveyboy
aka Jim Davey  Location: Southampton Registered: 01 Oct 2007 Posts: 8,648 Status: Offline |
Post #12
mxcrazy wrote: Get some 87 or 88mm pistons made, i can supply you drawings for 88mm pistons that will work with the 1.9td 88mm crank and stock GTi rods to give you 2139cc, not only are you increasing displacement, but with my particular pistons compression also, it also give you more scope to have the combustion chamber modified, mainly to un-shroud the valves to improve low lift flow. Plus i have huge cut outs to run 'big' cams if need be.
It never stops... Alternatively get some off the shelf pistons, oversize, and get some rods made, think you can have them made for about ________________________________________ R H Davey Welding Supplies. I sell new and used welding equipment in the Hampshire area. I take on welding jobs in the evenings, ally casting repairs are one of my specialities but I can weld pretty much anything. PM me with your requirements.Some of my services: (See my for sale threads) Engine mount/chassis repair Solid Beam Mounts BACK IN PRODUCTION Harness bars |
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Posted 17th Mar 2010 at 16:23
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adam b
Seasoned Pro  Location: The Nam Registered: 24 Jan 2006 Posts: 12,828 Status: Offline |
Post #13
Suddenly my 2940cc looks cheap if lower powered...________________________________________ Nothing to see here |
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Posted 17th Mar 2010 at 16:59
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mxcrazy
Regular Location: hastings Registered: 22 Jun 2009 Posts: 456 Status: Offline |
Post #14
adam b wrote: Suddenly my 2940cc looks cheap if lower powered... ......and sounds gorgeous no doubt. Theres some euro guys running like 98 or 100mm stroke, 88mm bore xu10's. Farndon engineering make the cranks i believe, 3 x Peugeot 306 86mm stroke EN40B Crankshaft (with opel B.E) Thats what they are showing as stock, only 86mm bore but i bet that would be a lovely piece of kit, especially for a 9000+ rpm motor. Id love a huge bore/stroke 4 pot engine though, 2.4 litre or something. |
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Posted 17th Mar 2010 at 17:05
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,839 Status: Offline |
Post #15
2.3 Mi16 on youtube ignore the graphic, it is 2299cc, circa 270 bhp, epic torque.dyno results thread XU13J4 build thread ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 17th Mar 2010 at 17:20
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jamesta
Newbie Location: Sofia Registered: 23 Oct 2007 Posts: 34 Status: Offline |
Post #16
Here u go mate...simple... and if i'm not wrong you can do it with the engine still in the bay working underneath ________________________________________ Peugeot Sport chip...Upper motor mount mod...Å.Ì.Ò.Ñ. Racing Steering Wheel...Brembo MAX+EBC pads all around...De-cat...GE Quickshift...Street Racing Style Front Bumper (not installed yet)...Street Racing Style Rear Bumper (not installed yet)...Street Racing Style Side Skirts (not installed yet)...Laguna splitter (not installed yet) Ouragan 16" 6,5J (not installed yet)... more are comin' in the future  custom made lower strut brace on the way...... |
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Posted 18th Mar 2010 at 04:48
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