M444TTB Posted August 22, 2013 Share Posted August 22, 2013 One of the most impressive things I've seen for the S2000 engine (F20C?) is a comparison between standard power output and an otherwise standard engine on Jenvey TBs. The peak was little different but the mid-range improvement was huge. I'd def for an S2000 as my N/A engine of choice (Hartley V8 not withstanding). Although a Duratec, Jenveys and a Rotrex would be nice! Quote Link to comment Share on other sites More sharing options...
Rednop1 Posted August 22, 2013 Share Posted August 22, 2013 Put a supercharger on the honda and get 340bhp without doing anything to the internals of the engine.now that's a cheap extra 100bhp Quote Link to comment Share on other sites More sharing options...
M444TTB Posted August 22, 2013 Share Posted August 22, 2013 F20C on Jenveys with a Rotrex. Elite 6 speed box and dry sump. Sorted! Quote Link to comment Share on other sites More sharing options...
simon.white Posted August 23, 2013 Author Share Posted August 23, 2013 EDIT - I made a mistake on the price of the 2.4L stroker kit as pointed out below by Timmeh - http://www.vividracing.com/catalog/brian-crower-stroker-kit-honda-f20c-f22c-p-37197.html quotes $3,452 plus taxes, shipping and fitting if required. So you can strike out my more-money-than-sense comment :-) When I was at the factory picking up my car, the Westfield guys mentioned they were going to start doing de-cat, ITB and supercharger options on future S2000-powered cars. There's also the US 2.4L stroker kit, if you've got more money than sense (it's nearly £8K once fitting and import is taken into account). In my case, any upgrades are likely to involve first the driver, then the chassis, and I'll probably not be looking at more power for at least two or three years. I'll probably do the de-cat, though, when it's available from the factory, as that's likely to be easy on the wallet and I can get it done alongside any chassis mods next year or so. And Timmeh, Westfield are using Omex for the sparky bits. IIRC Omex have done a stock map for the F20C in conjunction with Westfield, so the map is designed for the application, although not the car. The only other thing they've done to the engine is baffled the sump (they actually fit a baffle in the stock sump rather than fit a new sump) and give it a bit of a clean. I know one of the features of the map is that VTEC is brought into 5,000 rpm, and they've tried to smooth out the "kick" when it comes on as much as possible, but I haven't had much of a chance to stretch it's legs yet. Hopefully a nice sunny bank holiday weekend should see to that! Quote Link to comment Share on other sites More sharing options...
Speed Freak Posted August 23, 2013 Share Posted August 23, 2013 if you go the supercharger route, theres no need to use itbs. Also If you go the dry sump route, youll make things more difficult with regards to using a supercharger, as most of them run off the crank pulley, and your dry sump will be in the way.... the stroker kit really isn't that expensive- if you want to buy the engine ready built, then you will be looking at quite a lot of $$$, but still not 8k.. more like 5k plus donor engine. Having said that though,this engine has had port/ head work done, and produces 255 at wheels.. If you only buy the stroker kit, and fit yourself, youre looking at 2-3k, and will net you 245 at wheels... plenty in my book. the more important figure is that torque will be up to nearly 200. Quote Link to comment Share on other sites More sharing options...
simon.white Posted August 23, 2013 Author Share Posted August 23, 2013 Oops you're right Timmeh. I think the price I was quoting above, which was from memory, must have been for a complete motor, and was anyway a little high. Your figures are much more accurate - I'll edit my post to clarify. Quote Link to comment Share on other sites More sharing options...
Speed Freak Posted August 24, 2013 Share Posted August 24, 2013 Oops you're right Timmeh. I think the price I was quoting above, which was from memory, must have been for a complete motor, and was anyway a little high. Your figures are much more accurate - I'll edit my post to clarify. sorry mate but I can top that price again!!!! here ya go- this will get your taste buds tingling! @ $2,295- plus bearings etc... http://www.inlinepro.com/s1/p-237-s2000-f24-stroker-kit-oem-sleeves.aspx these guys really know there stuff- they build specifically for the s2000. If you go onto the s2ki.com website, they are a major part of it. enjoy! Quote Link to comment Share on other sites More sharing options...
clansman Posted August 24, 2013 Share Posted August 24, 2013 VERY nice ..................enjoy as I am sure you will ........... Quote Link to comment Share on other sites More sharing options...
SlowPoke Posted August 24, 2013 Share Posted August 24, 2013 :yes: Quote Link to comment Share on other sites More sharing options...
simon.white Posted August 30, 2013 Author Share Posted August 30, 2013 Just for the record... I mentioned above the backend was very flighty with quite a bit of bump steer. This was easily enough fixed - Westfield had given me the car with, IIRC, the front dampers set six clicks from fully soft and the back on eight. I tweaked these to twelve and fourteen and everything was lovely - the car feels so much more planted and I've got the confidence to use a lot more of the power now. I might soften the rear a bit later, but for now it's so much better. This is the standard dampers not the Nitrons. I also took some pressure out of the tyres, which were running 22psi at the front and 23 at the back warm, to 20 warm on both. This is on new R1Rs, and they were warm after some not-very-spirited road driving. Anyway, I thought I'd share in case anyone interested in the S2000 kit comes across this thread later and worries about my comments re: the handling. Quote Link to comment Share on other sites More sharing options...
peterg Posted August 30, 2013 Share Posted August 30, 2013 Glad its handling better now Simon Quote Link to comment Share on other sites More sharing options...
Rory's Dad Posted August 30, 2013 Share Posted August 30, 2013 And Timmeh, Westfield are using Omex for the sparky bits. IIRC Omex have done a stock map for the F20C in conjunction with Westfield, so the map is designed for the application, although not the car. Do you mean a stock map for the F20C as fitted in the Westfield not the Honda?? The map and the Westfield seemed well matched when I had a ride with Mark Walker. There was no problem with the handling either. Rory's Dad Quote Link to comment Share on other sites More sharing options...
Dave Eastwood (Gadgetman) - Club Chairman Posted August 30, 2013 Share Posted August 30, 2013 Yes Omex have done extensive mapping work on an F20C engine fitted in the Mega S2000 development car. its true, this is a "generic" F20C in a Westfield map, but then it's still running the oem throttle body, so while there might be a little optimisation possible by getting any individual F20C customer installation's map tweaked, it probably won't be anywhere near as much as in the Jenvey ITB cars. (Providing the fuel pressure is set to match and you're using a cat) Handling wise, the new chassis development was done by a race engineering company, specialising in this sort of development work, so should be spot on when set up right. Quote Link to comment Share on other sites More sharing options...
Speed Freak Posted August 30, 2013 Share Posted August 30, 2013 sorry to jump on this thread, but just thought Id let you all know that I finally got out im my westy again today! The Honda lives (again)! Still got to sort out the geo, infact more so than ever, as Ive fitted new rosejoints to the rear, so its all over the place now- But the plan is to potentially swap out all the bushes, and do the remaindering rosejoints to elimate the issues.... Figured as they haven't been done since 2005 it must be time... anyway... to get back to the subject at hand; I would love a standalone ecu, to bring the vtec in earlier, but its a no-go over here- unless I went for the hondata ecu, and swapped out the sensors in the engine, only then would I retain the obd functionality.. you boys with a simple omex plug and play, have got it good Quote Link to comment Share on other sites More sharing options...
JOCKER Posted September 2, 2013 Share Posted September 2, 2013 Lovely looking motor. Quote Link to comment Share on other sites More sharing options...
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