Kal-El Posted July 21, 2015 Share Posted July 21, 2015 So I've now finally completed my new engine install. See blog here for deets link :)Once its run in fully, I'll be taking it for a power run. Anyone care to guess what the Bhp at the flywheel will be? A pint at the next Penn Sevens meet for the person who comes the closest!P Link to comment Share on other sites More sharing options...
johnv Posted July 21, 2015 Share Posted July 21, 2015 Jason is a wizard, he built mine, it still shows over 200 bhp at the 2 Steve's after 30,000 miles including many track days! Glad to see he's still doing k'smy guess is 215 Link to comment Share on other sites More sharing options...
Mankee Posted July 21, 2015 Share Posted July 21, 2015 218.7bhp/161.3lbft. But I'd be over the moon for you if you cracked 220bhp/165lbft. (Depending on the rollers, weather, alignment of the stars, internet keyboard warriors etc.) Link to comment Share on other sites More sharing options...
Kal-El Posted July 21, 2015 Author Share Posted July 21, 2015 I think I'd be delighted with anything over 220 too! 160ft/lb would be pretty awesome! Especially from an 1800. Link to comment Share on other sites More sharing options...
Mankee Posted July 21, 2015 Share Posted July 21, 2015 I would think that, with the spec, 160lbft is easy. Again, rolling road differences not withstanding, mine hit 160lbft, and that's with standard VVC valve sizes, much milder cams, Jenveys not roller barrels and an eBay engine slapped together by a monkey on a shoestring budget, i.e. me.Good luck! Link to comment Share on other sites More sharing options...
SM25T Posted July 21, 2015 Share Posted July 21, 2015 209bhp Link to comment Share on other sites More sharing options...
Matty7 Posted July 21, 2015 Share Posted July 21, 2015 217bhp Link to comment Share on other sites More sharing options...
Kal-El Posted July 24, 2015 Author Share Posted July 24, 2015 Ok so we're all coming in about the 215 mark. Interesting.I guess my question then, is what more could I do to hit the 230-240 bhp other 1800cc K's are managing on Dynoplot? Link to comment Share on other sites More sharing options...
Kal-El Posted July 24, 2015 Author Share Posted July 24, 2015 Food for thought:if the engine made the 160ft/lbs as suggested, that would be at about 6300 revs. Peak power on 1444 cams is about 7800. That would mean a torque figure of just 145lb/ft. A loss of 15lbft over just 1500 revs?145x7800/5252 = 215bhp Link to comment Share on other sites More sharing options...
oilyhands Posted July 24, 2015 Share Posted July 24, 2015 Generally peak power is made when torque is around 90% of peak, so a 160lb/ft engine would make its peak when the torque is around 145lb/ft. A drop of 10% torque over 1500 RPM isn't unusual once past the peak. The torque figure shows how well the engine is working, anything over 150lb/ft is good, 160+ measured on a known accurate dyno is exceptional.oily Link to comment Share on other sites More sharing options...
Simon.Rogers Posted July 24, 2015 Share Posted July 24, 2015 Thats cos i looked after it and spec'd it well. oh and Jason of course :-) Link to comment Share on other sites More sharing options...
Mankee Posted July 24, 2015 Share Posted July 24, 2015 I guess my question then, is what more could I do to hit the 230-240 bhp other 1800cc K's are managing on Dynoplot?Even bigger cams and even more revs? And even more money. That sort of power level must be pretty stressful for an 1800K. Link to comment Share on other sites More sharing options...
Kal-El Posted July 24, 2015 Author Share Posted July 24, 2015 These two cars are 1800cc, Throttle bodies, 1444 cams, 4-2-1 and big valve vvc heads, built by DVA. Torque doesn't dip below 160ftlb until after 8000. How are they making such big power? Link to comment Share on other sites More sharing options...
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