Big Brother Posted December 16, 2002 Share Posted December 16, 2002 I currently have a spare 1600cc engine on the floor of my garage crying out for some attention (and shiny bits ) I've heard quite a few people mention 155bhp spec X-flows recently. Can anyone tell me what needs to be done to the standard spec engine to get to this power output. (cam, bore, head, valves, pistons, CR etc) Also if anyone has had a 155bhp conversion and has a spec sheet, could they please post it or mail me a copy at: steve@gu46.co.uk advTHANKSance Steve Se7en-Up! Less is more! Link to comment Share on other sites More sharing options...
greg Posted December 17, 2002 Share Posted December 17, 2002 Hi Steve, This spec sounds like Roger Kings "155Bhp" spec - often called an RK 155 or similar shorthand. From what I know it is based arround a Kent 244 Cam, Forged pistons, ballanced bottom end and tweaked head. What you really want is a 254, throughly tweaked head, tweaked bottom end and 3D ignition..... Best to ask Roger King, alhough he may not give away all his secrets , he is very helpfull! Greg, Q 86 NTM (Green 185BHP XF) Link to comment Share on other sites More sharing options...
Anthony Posted December 17, 2002 Share Posted December 17, 2002 Guys, have a chat with Rob Grigsby, he has a 155 RK engine with 3D etc which might be available as he has just brought by 185 RK engine... If not suggest you follow Greg's advice as I found 244 a bit flat and did not give the delivery in 1800 big valve head etc that I was expecting ( albeit this was with std rods/crank ) Best regards Anthony X-Flow-power; the real way forward Link to comment Share on other sites More sharing options...
Tiff Posted December 17, 2002 Share Posted December 17, 2002 I had this conversion done by Roger King. The engine started of as a 1600cc X/F unit and finished as an 1800cc 155bhp unit. Bags more torque, 0-60 times that surprised a few "expensive" Se7ens, easier to drive and better fuel consumption (except when thrashing it!). I've now building an R300 and of course have thrown all the old X/F paper work away.... Roger is extremely helpful and does an excellent job. It cost me 2.5k + VAT 3 years ago. The first question he will ask is what type of block is it? If it's an AX block you're in luck, this has the most potential. From what I remember: tuftridden crank, Cosworth big ends, balanced +dowelled flywheel (lightened if you want), forged pistons, big valves and gas flowed head, duplex timing chain, double valve springs, titanium collets, steel rocker posts, opened up and rejetted carbs, 244 cam, other steel bits between valve and cam and a lot more. Gave me a lot of fun and was very reliable over the 10,000 miles I drove it, including around the Pyrenees twice. You'll need the 4:1 exhaust to fully realise the potential - great noise! Go for it ! Link to comment Share on other sites More sharing options...
eric Posted December 17, 2002 Share Posted December 17, 2002 Who knows the durability ( in miles ) of a so tuned engine ? Link to comment Share on other sites More sharing options...
stevefoster Posted December 17, 2002 Share Posted December 17, 2002 Roger builds them for a reported 30000 road miles. My old car has done some 16000 miles on the RKE 155 spec. /Steve My racing pics, 7 DIY, race prep. Updated often here Photo's of the year here Hants (North) and Berkshire Area club site here Link to comment Share on other sites More sharing options...
Ade Ray Posted December 17, 2002 Share Posted December 17, 2002 I am currently rebuilding my brother's old Roger King 155BHP, dry sumped engine and I do have the spec sheet. if you email me your address I will post you a photocopy. Ade Make the world a better place, hug an estate agent Link to comment Share on other sites More sharing options...
Big Brother Posted December 17, 2002 Author Share Posted December 17, 2002 Ade - YHM Also, is there any differences (that you know of) to the spec if the car is not dry sumped? Just a thought. Steve Se7en-Up! Less is more! Edited by - steve Motts on 17 Dec 2002 17:15:47 Link to comment Share on other sites More sharing options...
Ade Ray Posted December 17, 2002 Share Posted December 17, 2002 Steve YHM also I dont think that the lack of a dry sump will make any difference. All the bits at the bottom are pretty standard other than the tuffrided crank. I can only assume (but I dont know everything) that you will not achieve quite as much on the power output due to the larger quantity of oil in the sump. Ade Make the world a better place, hug an estate agent Link to comment Share on other sites More sharing options...
Ade Ray Posted December 18, 2002 Share Posted December 18, 2002 Hi Steve I shall be sending you the paperwork I have shortly. On inspection, what I seem to have is a detailed list of parts incorporated into the rebuild of Simons engine although the spec of certain items are not listed.I hope it is still of some use to you. I also have some installation and service notes that were provided by RK. Do you want those aswell. Ade Make the world a better place, hug an estate agent Link to comment Share on other sites More sharing options...
Bafty Crastard Posted December 19, 2002 Share Posted December 19, 2002 Try This Ford Crossflow Engine Rebuild Specification Sheet for 160bhp (Non Steel) Head modification Gas flow head, port & polish Set of big 214N stainless steel TC valves. 1.625"/41.3.mm IV, 1.380"/35mm EV Re-seat valve seats for unleaded conversion Heavy duty duplex valve springs and valve caps, VS7 Set of titanium valve guides, FP350 Steel rocker assembly, posts, HD shaft & spacer tubes Stiffer tubular push rods Match inlet manifold and head ports Reface head Block & Crankcase Rebore block to 1699cc Reface block Regrind crank Tuftride crank and polish Competition lead indium main bearings shells Competition lead indium big/small end bearings shells Thrust bearings Cosworth high tensile competition bolts kits. Head, conrods, main caps & flywheel KC 244 cam shaft Set of cam followers Steel duplex vernier timing gear, dowel & double width tensioner Fuel pump blank Steel front main pulley Flywheel double doweled to crankshaft end Competition head gasket High pressure/High capacity oil pump, FP220A Block breather adapter 23.5mm dia New Caterham sump Balance crank and flywheel Pistons & Connecting Rods Set of forged Accrolite pistons Machine pistons for valve pockets Balance connecting rods and pistons Ancillaries Facet electric fuel pump Fuel pump pressure regulator Set high performance 8.5mm silicon plug leads (ferromagnetic glass fibre core) New Webber 34mm chokes Oversized inlet/exhaust manifold gaskets Oversized laminated copper exhaust manifold gaskets Alfa Wedcon 3-D ignition management WEBK97016 (static/wasted spark) R300 NUT Link to comment Share on other sites More sharing options...
greg Posted December 19, 2002 Share Posted December 19, 2002 Bafty Crastard, Do you have any more spec shets? If you do what's your highest BHP with a std bottom end? Greg, Q 86 NTM (Green 185BHP XF) Link to comment Share on other sites More sharing options...
Big Brother Posted December 19, 2002 Author Share Posted December 19, 2002 Thanks Bafty Am currently pricing up my options (and scaring myself silly in the process 😬) Steve Se7en-Up! Less is more! Link to comment Share on other sites More sharing options...
Anthony Posted December 19, 2002 Share Posted December 19, 2002 Steve, have a chat with Rob, his engine swap is early Jan, so I am sure all the goodies are available and can be built up pretty swiftly Regards Anthony VX the real way sideways Link to comment Share on other sites More sharing options...
Bafty Crastard Posted December 20, 2002 Share Posted December 20, 2002 The advice I was given when I had a Crossflow was, Don't take the BHP any more with out a steel crank, and defo with out a dry sump ! Link to comment Share on other sites More sharing options...
Graham Perry Posted December 21, 2002 Share Posted December 21, 2002 Seconded Link to comment Share on other sites More sharing options...
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