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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Sun Jan 05, 2014 12:48 pm 
JNC Enthusiast

Joined: Fri Dec 18, 2009 9:22 am
Posts: 653
Location: Netherlands
I love it, all of it! We have a great japanese classic car event coming up next year, ill make sure you'll get an invitation too!

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Japanseklassiekers!

1970 C30 Laurel
1972 240Z
1973 610 Wagon
1977 260Z
1995 Micra
1999 200SX


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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Tue Jan 07, 2014 2:18 am 
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Joined: Wed Sep 18, 2013 8:02 pm
Posts: 591
Location: Hong Kong
Super cool project! 8)
Love the retro-racer-style that you've gone for.
Hmmm... but curious about the roll hoop? Do you plan to always drive the car with a crash helmet on? Cause if you're invovled (God forbid!!) in a minor fender-bender, you'll no doubt whack your head against the roll hoop, and rather than being a safety device, it'll actually inflict way more harm to you than would have been the case without the roll hoop in place. :roll: Just a thought...

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It's not what you drive - it's how you drive it...

Best Regards,
Anders.

JDM '77 Toyota Trueno Sprinter 1600GT (TE61)
+ a handful of classic BMW's from the 60's and 70's.


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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Tue Jan 07, 2014 4:56 am 

Joined: Mon Dec 13, 2010 12:12 pm
Posts: 132
Location: switzerland
hi 02anders
actualy i have the same thoughts!!
but i have to protect the roll cage with foam tubes.
not for the good look but for my own safety.
and i will never get it registered in switzerland without these protections!!
i dont like many of our car rules but this one makes sense!!


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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Fri Jan 24, 2014 12:49 pm 

Joined: Mon Dec 13, 2010 12:12 pm
Posts: 132
Location: switzerland
hey eric,i liked my last stay in the netherlands very much,as well as my girlfriend!so feel free to send me an invitation.maybe im planing 2 trips to you guys??!! 8)


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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Fri Jan 24, 2014 1:07 pm 

Joined: Mon Dec 13, 2010 12:12 pm
Posts: 132
Location: switzerland
in christmas holidays i worked with my Dad on the cylinder head of the G18 engine.widened intake for the G20 manifold,worked on valve seats,changed valve stem seals and head gasket and put the head back on the engine.
i restored and painted my frontbrake calipers.added new brakelines and pads.
Image
Image


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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Fri Jan 24, 2014 1:23 pm 

Joined: Mon Dec 13, 2010 12:12 pm
Posts: 132
Location: switzerland
i also picked up my valve cover from powdercoating and sanded down the letters.very happy with this one 8)
also cleaned out the radiator and put it back to the car.
Image


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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Fri Jan 24, 2014 1:31 pm 

Joined: Mon Dec 13, 2010 12:12 pm
Posts: 132
Location: switzerland
some of the next work i will do is to build a G18 exhaust manifold.stay tuned 8) 8)
Image


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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Sun Feb 02, 2014 8:24 pm 

Joined: Fri Oct 25, 2013 1:50 am
Posts: 26
Location: MALAYSIA
awesome


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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Mon Feb 03, 2014 1:26 am 
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Joined: Thu Jul 14, 2011 1:42 pm
Posts: 44
Location: Norway
Engine looks sweet :tu: .
I read somwhere that G18 exhaust manifold portspacing matches L18 but flanges have different
boltpattern. Would need to get that verified tho. L18 has way better design of the manifold than the G18.

Image

Did you compare the twin carb G20 camshaft to the G18 cam ?


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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Mon Feb 03, 2014 2:14 pm 

Joined: Mon Dec 13, 2010 12:12 pm
Posts: 132
Location: switzerland
hey tojo,
jep the l18 manifold looks better,but i want to create my own manifold.
i will order 3 pcs. of boltpatern.we have a lasercutter in our workshop.
so when i have finished the manifold you can decide if you would like to have one too!
i did not compare the cams,i am not that engine crack!do you think it would be an upgrade with the G20 cams?


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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Tue Feb 04, 2014 1:17 am 
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Joined: Thu Jul 14, 2011 1:42 pm
Posts: 44
Location: Norway
Sounds great Stev.

Not sure. Going from brochures Ive seen there appears to be two vertions of the G20 :
High comp. twincarb and low comp. single carb.

Im guessing as G18 is low comp it would have the same cam as low a comp G20 and possably

the High comp twincarb G20 would have a more agressive cam.

Raising the compression ratio a bit + a more agressive cam would be an upgrade along with
your twin carbs and header.

I didnt have valvefloat issues with the G18 even tho I used to rev it realy hard. Both G18 and G20 have double valve springs

Like I said, Im just guessing on the cams as I dont have parts catalog to compare.
but higher static comp ratio often means larger cam.

If you still got the G20 it would be easy to measure the valvelift using a dial gauge


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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Tue Feb 04, 2014 4:29 am 

Joined: Mon Dec 13, 2010 12:12 pm
Posts: 132
Location: switzerland
nice info thank you!
i still have the g20 but its still how it came to me.
i just have removed the intake manifold.
i think i want to have my engine running first then i check out if the cams would be a good upgrade.
my engine manual is still at my dads house with the carbs.
maybe there is a describtion about the different cams.


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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Tue Feb 04, 2014 4:41 am 
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Joined: Thu Jul 14, 2011 1:42 pm
Posts: 44
Location: Norway
sounds like a good plan 8)


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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Tue Feb 04, 2014 9:06 pm 
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Joined: Sat May 24, 2008 8:08 pm
Posts: 196
Location: Pit Garage
Cams are the same...no difference on the part number


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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Wed Feb 05, 2014 2:30 am 
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Joined: Thu Jul 14, 2011 1:42 pm
Posts: 44
Location: Norway
Yayoi wrote:
Cams are the same...no difference on the part number


Thank you :D


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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Wed Feb 05, 2014 4:44 am 

Joined: Mon Dec 13, 2010 12:12 pm
Posts: 132
Location: switzerland
thanks!


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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Wed Feb 05, 2014 2:06 pm 
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Joined: Sat May 24, 2008 8:08 pm
Posts: 196
Location: Pit Garage
If you want new custom cam, contact isky


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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Thu Feb 06, 2014 4:57 am 

Joined: Mon Dec 13, 2010 12:12 pm
Posts: 132
Location: switzerland
isky? member?
btw: @yayoi your parts are still aside and are waiting for mai. cheers


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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Thu Feb 06, 2014 8:55 am 
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Joined: Sat May 24, 2008 8:08 pm
Posts: 196
Location: Pit Garage
Iskycams.com :D i should be back in april...are you making an octopus exhaust...similar to this: Image
Image


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 Post subject: Re: my datsun 1800 c30 laurel
PostPosted: Mon Feb 10, 2014 12:18 pm 

Joined: Mon Dec 13, 2010 12:12 pm
Posts: 132
Location: switzerland
@yayoi
i think my manifold will more look like the tomei manifold for the 310.
the manifolds on your pics will maybe look too agressive for our police officers :cry:


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