SADDLEWORTH Posted February 23, 2007 Posted February 23, 2007 799 BHP all day long ....... ......and night <!--emo& Austen, your MAAAAAAAAD!!!!! It'll probably take-off in a kit car, or worse melt it! Mine will be 550bhp plus on the turbo I'm running on a 1.8 Ian will be alot more than that in his focus but we all have to try and persuade him to put it in a kit car. Feck me 550 bhp you`ll be going through some rubber Quote
RS WST Posted February 23, 2007 Author Posted February 23, 2007 This is what mine looked like last year This is what it looks like now Getting there slowly but surely Quote
RS WST Posted February 23, 2007 Author Posted February 23, 2007 Correct, flows more than the Duratec or Cosworth with standard valves once CNC ported Quote
SADDLEWORTH Posted February 23, 2007 Posted February 23, 2007 http://www.cncheads.co.uk/ford_st170.html Like that Quote
RS WST Posted February 23, 2007 Author Posted February 23, 2007 Duratec 179 cfm ST170 183cfm Ian's engine has a development head which is even better Quote
CedricTheBrave Posted February 23, 2007 Posted February 23, 2007 you boys and yer flashy gizmo's Quote
Ian Howell Posted February 23, 2007 Posted February 23, 2007 For those interested in the engine and what I've done, he's the story cut short... 2.3 Ranger 87.5 bore x 95mm stroke DKE custom crank to reduced to 83.00m stroke Block liners removed along with most of deck face and replaced with Ductile Iron Items from Darton Sleeves, and bored to 91.00mm. Custom rods to give a Rod length/stroke ratio of 1.98. Custom pistons for 7.4:1 CR. Ally main cap ladder remachined to allow fitment of 2" thick ally girdle. Head studs in main stud locations. Head anchorage now by M12 Cummins diesel studs (drilled deeper). Pace dry sump kit. Top end is a development head by Jim Garrard at CNC heads, valve seats changed for Nibron, custom made Valves, my spec cams and valve train. Inlet manifold is an early prototype from Cosworth America which I reworked and added the extra 4 injectors into (8x 625cc/m). Custom Fuel rails. Exh manifold is 321 SS in 1"3/4 bore. Turbo is Turbonetics T72 with P trim turbine and 1.00 A/R housing (spec'd to suit my cams). It will run on 102 Oct fuel without and help from NoS and should crack 700 without sweating too hard, but if 800 is close by, it may be given one last push Oh, and hello Matt Knight!! (He's my Bro in Law) Quote
cng1 Posted February 23, 2007 Posted February 23, 2007 At 2.5 bar boost, assuming no losses as you add boost then the engine would be doing an equivalent of a natasp 280bhp for the 700bhp figure and 320bhp for the natasp equivalent of 800bhp. By my calcs you've gone down to 2159cc - is that right or am I misreading your summary? AIUI Ammo over at raceco is now getting a shade over 300bhp with larger capacity and as a natasp he's obviously using cams with lots of overlap and huge valves and his engines are regarded as some of the best out there. To get the performance levels that you're hoping for with turbo-style cams and less capacity is phenomenal going, particularly with an old-school T72. I'll really look forward to seeing the plots afterwards and wish you the best of luck with the mapping, if anyone can do it Ahmed can. Out of interest how much of the power do you anticipate is coming from the nitrous? Quote
CedricTheBrave Posted February 24, 2007 Posted February 24, 2007 Ford have a 2.5 stroke crank in development atm which should be an interesting developement for the Duratec Quote
bill shurvinton Posted February 24, 2007 Posted February 24, 2007 I don't normally get involved in these sort of threads. I suspect its because spending some time on a few US centric forums you seem to get a lot of testosterone laden 17 year olds who can neither spell nor assemble a sentance starting these threads and they get upset when you point out a few fundamental laws of physics. Anyway, assuming an air:water intercooler I reckon 700 should be possible at that boost, although Like Chris I would be impressed if a turbo cam could do that. You are brave to be runnning that sort of power from an Ally block. Most just head to steel for big power. Quote
CrashBangWallop Posted February 24, 2007 Posted February 24, 2007 I don't normally get involved in these sort of threads. I suspect its because spending some time on a few US centric forums you seem to get a lot of testosterone laden 17 year olds who can neither spell nor assemble a sentance starting these threads Then, it's somewhat ironic that you've spelt sentance [sic] incorrectly. Neil Quote
bill shurvinton Posted February 24, 2007 Posted February 24, 2007 No, that was on purpose to see if anyone was awake :-) Quote
RS WST Posted February 25, 2007 Author Posted February 25, 2007 Out of interest how much of the power do you anticipate is coming from the nitrous? Not using Nitrous Quote
cng1 Posted February 25, 2007 Posted February 25, 2007 Out of interest how much of the power do you anticipate is coming from the nitrous? Not using Nitrous That was a question for Ian, not for you Austen Quote
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