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Post by stuey on Sept 29, 2014 12:47:07 GMT
The fella I bought the motor from reckoned 162 bhp with rs40s and a flowed head (1380) ..? Mines will be flowed running rs38s I reckon 140 s more realistic what's ballpark on tuned efe motors
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Post by katana on Sept 29, 2014 18:27:31 GMT
I reckon your closer - a lot was done to Kev's PM engine to get it to a bit over 180hp - 1540cc, big compression, valves, porting, stupidly bumpy cams, 45mm lectrons and clever ignition, so i'd say 140hp would be very good.
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sharpy58
Velociraptor
Posts: 38 
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Post by sharpy58 on Sept 29, 2014 19:23:21 GMT
1000cc kat engine with 1170, EFE cams,Tingate pipes and 33mm mikuni smoothbores was 128HP so yeah 140 should be close.  |
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Post by beerbellykelly on Oct 8, 2014 7:55:50 GMT
A 1380 should hit over 175bhp if the parts are well selected and put together right - the 38,s would be the limiting factor for overall top end power-
What's it for ?
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cam
Oviraptor
Posts: 8
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Efe bhp
Oct 29, 2014 20:25:32 GMT
via mobile
Post by cam on Oct 29, 2014 20:25:32 GMT
I was hitting 160 bhp with 1500 flowed head ,g3 cams and 38mm flats but the head was flowed for a 1230 ,I reckon 180bhp would be easy
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Post by pedda on Oct 29, 2014 20:52:05 GMT
This is my 1230 EFE with mild cams & 38er RS carbs. About 129 hp.  |
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Post by beerbellykelly on Oct 30, 2014 12:56:57 GMT
My last dyno-d aspirated engine ( debbens dyno ) was 175bhp-
From 1327cc- g7&g13. Grinds -44mm lectrons hi comp
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Post by arnout on Oct 30, 2014 18:34:25 GMT
Found the printout of a dynorun with my old 7/11 many years ago now.. 1170 ET with Megacycle cams (#385-35 ), bigger valves, DIY porting, mild head skim, BST38ss, straight through 4-1, dual K&N's, Dyna2000 with copper HT-leads.. (hence the ignition cutting out at high rpm.. and old plugs.. )  Reckon my 1327EFE should do better than this despite the stock head, but I'm to stingy to do another dynorun..  |
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Post by gpz1100convert on Nov 2, 2014 18:06:48 GMT
I got close to 140 with rs carbs, 1240 wiseco, lumpy cams (forget the grind) and gas flow. it is the torque that matters as much on the road. 119ft/pound enough?
Mark
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Post by jonboy on Nov 3, 2014 12:33:25 GMT
1000cc kat engine with 1170, EFE cams,Tingate pipes and 33mm mikuni smoothbores was 128HP so yeah 140 should be close. Sorry to hijack thread but just read EFE cams in a thou kat. Is this a good upgrade from standard cams and would it also apply to 1100 variants too ? Jonboy  |
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Post by katanamangler on Nov 12, 2014 14:26:40 GMT
The 1230 EFE engine I had in my Kat, standard head, standard cams/slotted sprockets 105d deg -108 deg, RS 36s and a cobra system dynoed at 125BHP and I might add I liked the way it tried to give me it all at once :-)
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Efe bhp
Nov 13, 2014 18:40:55 GMT
via mobile
Post by bubba1135 on Nov 13, 2014 18:40:55 GMT
1230 efe, gsxr 11 carbs dyna coils Taylor leads dialled in cams mtc exhaust 129.1bhp on a red hot day,got a set of stage 1 cams going in this winter so more fun and frolics ahead
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