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Old 7 Mar 2013, 17:25 (Ref:3215630)   #1
fridgeman
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NOVAMOTOR LOTUS TWIN CAM

hi, i have a 2ltr novamotor and never had one before was needing educating on the specs and differences between this and say a BRM . its based on a FVA block and has a spacer plate to get the longer stroke.its steel internals but after that i,am at a loss. its on carbs not the injection F3 set up.
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Old 17 Apr 2013, 16:30 (Ref:3235859)   #2
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Never heard of it but I'm sure many of us would love to see some pictures
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Old 17 Apr 2013, 22:30 (Ref:3235976)   #3
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The Lotus type 73 F3 was fitted with a Novamotor Ford twin cam in 1972
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Old 18 Apr 2013, 06:31 (Ref:3236051)   #4
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Originally Posted by GORDON STREETER View Post
The Lotus type 73 F3 was fitted with a Novamotor Ford twin cam in 1972
That was a 1600 though. From memory Novamotor did a number of 1600 F3 engines. I'm pretty sure the spacer plate would not have been legal in F3. Novamotor dominated the early years of the 2 Litre F3 of course, with their Toyota-based engines.
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Old 19 Apr 2013, 08:56 (Ref:3236552)   #5
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Yes Nova did a lot of very special "things" with there Engines .
Yes they Build a 2 Liter TC-Engine with a spacer plate .
For exaple : They used the 701 Block , maschined the two middele bearings out and used a 3 bearing steel crankshaft..........
I have to rebuild one next week . I send some photos then...........
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Old 19 Apr 2013, 18:12 (Ref:3236744)   #6
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The plate was used to make the engine 2 litre using the original lotus block but you could also achieve it using the later, taller blocks, an 84mm stroke crank and 90mm bores. This does need liners but works well and produces a far more reliable engine than one usingbthe plate. Holbay and Novamotor both produced 2 litre engines in period. Neil Brown may have also done them. Some tuners stuck to carbs and others went for injection. These engines fell out of favour during 75 and into 76 as the Toyota based engine, whilst being heavier, produced both better power and torque. I raced my Van Diemen GRD with a 2 litre twin cam as that was what it used in period. It's original engine was a Holbay unit.
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Old 19 Apr 2013, 19:26 (Ref:3236770)   #7
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90mm X 84mm would give you 2138cc, so a bit above the F3 2 litre limit. More likely a bore of 87mm with the 84mm stroke to give 1998cc.
It would be interesting to hear what the dimensions of Roger's Novamoter's engine are.
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Old 29 Apr 2013, 18:23 (Ref:3240681)   #8
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sorry i,am a bit late getting back on here its 86.5mm bore x 84mm stroke according to the spec sheet and ran injection but that was troublesome and i bought it with twin 45,s. its all dynode and ready to go but i havent a clue whats inside it .pics on there way.
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Old 29 Apr 2013, 18:25 (Ref:3240684)   #9
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Old 29 Apr 2013, 18:34 (Ref:3240688)   #10
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last re built by urban fassler and its 86mm stroke i believe ,the spec sheets in german and thats a bit of a mistery to me although some of its easy to make out. it is indeed a 701 block but i was told it was a FVA,it has the oil gallery on the engine mount ? please keep the info comming and any pics would be fantastic.thanks gents.
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Old 7 May 2013, 13:00 (Ref:3243944)   #11
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I have one as well 2 litre F3 on injection with a restrictor and ultra high CR
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Old 8 May 2013, 13:41 (Ref:3244334)   #12
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there not that rare then do you use it ? does it give good power /torque.
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Old 14 May 2013, 05:48 (Ref:3247121)   #13
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No I had been waiting for a suitable car to put it in - actually owned it for 34 years but then went on to other projects.
As I understand it they were not quite as good as the Toyota in 2000 guise and a lot more expensive.
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