digginganddirt
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RE: another project mk2
2010/01/28 21:58:06
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have you seen this? http://www.cortina-mk1.com/pdf/dastun_crank1.pdf once i finish my aprentiship gonna have a good at it (fitter and turner) work at thales who make the bush masters (army off road 4x4's) so have any mechine you could imagine 
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krt10
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RE: another project mk2
2010/01/28 22:01:47
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yeah ive come seen that artical.
cheers anyway.
like i said not sure if ill do it yet but im quite interested
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Mk1 Lotus
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RE: another project mk2
2010/01/28 22:07:50
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Datsun cranks whilst forged steel are still 34 years old, the centre line of the pin isn't centred to bore, you have no fillet radii left on the crank pins once turned down and they still don't clear the inside of the block and that just the L18 the L20 has main journals 5mm bigger standard than the L18 that is too big already.Then you need a flywheel which is no problem just more money. For what your doing there are 3 other options, 1. Scat cast steel FF1600 crank, looks the same as a standard 711M or 2. the cranks I had made, 4340 forged steel fully counterweighted for $2200 and if you want to go big I have 84mm stroke as well, we would need to get you new pistons though and the cam would have to be notched.  or 3. just have the standard crank crack tested, serviced and balanced.
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krt10
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RE: another project mk2
2010/01/28 22:28:09
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interesting. thats a bloody sexy looking crank. $2200 isint much more than what i was thinking a conversion would cost me. but then there is the rods ontop of that too.
do you mean you wouldn't use that cam paul?
anyway that looks much more appealing than a datto crank.
will have to do some thinking. haha
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Mk1 Lotus
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RE: another project mk2
2010/01/28 22:42:43
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Rods are $600.
You can use your cam, if you went long stroke, 84mm, you would need to modify your cam for clearence.
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krt10
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RE: another project mk2
2010/01/28 22:46:26
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ahh ok.
what's involved in modifying the cam?
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Mk1 Lotus
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RE: another project mk2
2010/01/29 06:52:56
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Notching so the rods can pass with out hitting it. This is for the 84mm stroke only.
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krt10
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RE: another project mk2
2010/01/30 21:25:39
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Timmeh
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RE: another project mk2
2010/05/02 22:40:48
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Are you planning on getting your brakes engineered? I have the same brake setup but too scared to put it in in case an accident can be attributed to them. No insurance = loss of house and everything.
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krt10
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RE: another project mk2
2010/06/02 10:36:48
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to be honest i havn thought about that yet. i was running them in my old 2 door for a while and they were fine. im still unsure if they will be the final brake of choice on the fronts yet either ;)
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krt10
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RE: another project mk2
2010/10/02 18:57:29
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second order arrived today. only waiting on pistons,rods,alloy head and inlet manifold now. new crank. decided to stick with the standard stroke in the end.   extractors   bearing kit  and rear disc brake conversion kit  cheers
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fordsy
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RE: another project mk2
2010/10/02 19:07:38
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Nice collection of parts. That rear brake kit looks familiar. I had to change to longer rear wheel studs as the std length ones are a wee bit short with discs on. Something to keep an eye on. 
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krt10
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RE: another project mk2
2010/10/02 19:14:52
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yeah longer studs will be going in. cheers for the heads up anyway
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2lt_Scort
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RE: another project mk2
2010/10/02 19:25:57
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Your dropping some cash on this build Scott, Im looking forward to the finished product.
Rhys
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krt10
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RE: another project mk2
2010/10/02 19:29:14
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haha yeah. doing lots of overtime at work. i dont want to do a half arsed job which will cost me more in the long run. plus i want to make some nice power from a kent
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