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 Post subject: New Arrival - 1400!
PostPosted: Sat May 18, 2013 1:29 pm 
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848cc
848cc

Joined: Sat Jul 24, 2010 9:58 pm
Posts: 70
Location: Brisbane
Hi all.

Just got back from Russell Engineering with my new motor:

Image

Graham was kind enough to let me stay and watch the dyno runs.
Bit like being at the birth of your child, except the baby usually doesn't get thrashed half to death...

Very exciting to watch and hear.

Now I need a couple of bits to finish it off.

Does anyone know what starter motors (Jap please) will bolt in?
I've been told Gemini (which model??), but surely they'd all be fossilised by now...

I also need a dipstick and tube. Any ideas?

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 Post subject:
PostPosted: Sat May 18, 2013 1:51 pm 
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1098cc
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Joined: Fri Sep 28, 2012 7:19 pm
Posts: 1510
Location: Geelong , Victoria
Congratulations , a great looking motor.

Cheers Bill

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 Post subject: Starter
PostPosted: Sat May 18, 2013 2:05 pm 
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1275cc
1275cc

Joined: Thu Dec 09, 2004 6:57 am
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Location: JIMBOOMBA QLD.
One of my Bosch Planetary geared ones will be great for this engine. It will wind it over like it has no compression.

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 Post subject:
PostPosted: Sat May 18, 2013 2:39 pm 
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998cc
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Location: qld
Hope the motor goes well for you
re dipstick tube
if it is a pre A plus , minisports do a metal dipstick tube - i was recently pointed to them, also.


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 Post subject:
PostPosted: Sat May 18, 2013 3:17 pm 
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Joined: Mon Sep 06, 2004 4:36 pm
Posts: 8606
Location: Brisbane
Getting there Harry, good to see bro :-) lookin sweet

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 Post subject:
PostPosted: Sun May 19, 2013 12:55 pm 
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1275cc
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Joined: Sat Apr 14, 2007 8:34 pm
Posts: 3415
Location: Cowra
Have you a picture on the dyno output?

What are the specs of your motor

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 Post subject:
PostPosted: Sun May 19, 2013 5:23 pm 
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848cc
848cc

Joined: Sat Jul 24, 2010 9:58 pm
Posts: 70
Location: Brisbane
Thanks for the interest.

I don't recall the exact specs, so if Grahame is reading, perhaps he'd like to chip in???

I know it is a bit over 1400cc and has one of GR's little street cams in it (RE13?), and a GR head with monster valves (my contribution).

GR's dyno doesn't give print-outs, but I do recall it made over 115hp @ 6500 and 105 @ 7000, after which the power fell off.

The power band was very broad, and from memory, the power was over 100hp over a 3500prm band, so it seems it will be a very streetable engine, which was the exact request. Torque was over 100ft/lb.

You have got to understand that I was somewhat overwhelmed seeing my engine screaming away on the dyno. I took a video of it, but I've got absolutely no idea how to post it. I should have copied down the magic numbers, but too much else was happening and I needed to get on the road back to Brisbane.

It was a lot of fun having GR build the engine, and now all I have to do is fit it. But bear in mind - this project began in 1997 - can't rush these things...

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 Post subject:
PostPosted: Mon May 20, 2013 4:07 pm 
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Oh dear, worry, worry...

Joined: Fri Jun 19, 2009 5:31 pm
Posts: 692
Location: North Rocks
Hi Harry (Giddyup)
If you had not have been in such a hurry to giddyup home i would have printed it out for you.
1406 cc
RE83 cam
1.3 rockers
modified head
3.5 weber manifold
45mm weber
maniflow medium bore extractors

rpm torque hp
3500 97 64
4000 102 78
4500 105 90
5000 106 110
5500 105 110
6000 101 115.5
6500 93 115
7000 79 105

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 Post subject: Hp at wheels
PostPosted: Mon May 20, 2013 7:28 pm 
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1275cc
1275cc

Joined: Thu Dec 09, 2004 6:57 am
Posts: 3022
Location: JIMBOOMBA QLD.
What would that be at the wheels?

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 Post subject: Re: Hp at wheels
PostPosted: Mon May 20, 2013 7:41 pm 
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1098cc
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Location: Outta Ipswich
Convertible Mini wrote:
What would that be at the wheels?

= SPEED! Looks awesome.

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 Post subject:
PostPosted: Mon May 20, 2013 7:46 pm 
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1275cc
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Joined: Thu May 24, 2007 7:19 pm
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Location: Yandina,Sunshine Coast,QLD
I'm pretty sure GR only has an engine dyno, so at the flywheel I believe.

Also my interpretation of those figures is it's not worth reving past 5000 due to the peak torque, the peak bhp won't do extra...correct?

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 Post subject:
PostPosted: Mon May 20, 2013 7:59 pm 
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religious status
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Location: near Baulkham Hills, NSW
Kennomini wrote:
I'm pretty sure GR only has an engine dyno, so at the flywheel I believe.

Also my interpretation of those figures is it's not worth reving past 5000 due to the peak torque, the peak bhp won't do extra...correct?


HP = torque x rpm/5250 approx.
It might give peak torque @ 5000 (so does mine) but the HP (and performance) there is still rising with RPM. I'd run it to 6000-6500 if in a hurry. 8)

eg, my 1360 gave peak torque at around 5000-5500, but its peak HP came in at 7000.
When it hits 5000 it gets a second wind and hauls ass to 7500..:mrgreen:

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:


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 Post subject:
PostPosted: Mon May 20, 2013 8:00 pm 
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1275cc
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Joined: Mon Apr 26, 2004 6:31 pm
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Location: Sydney - strangely, I am glad of the sight of hills!!
I'm pretty sure Tony (Convertiblemini) knows that, he was asking for an estimate of it at the wheels.

Depends on how tight everything is and what sort of transmission, etc etc.

But say it drops 30% then that is about 88hp atw. Not bad when you think about it.

cheers
michael

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 Post subject: Re: Starter
PostPosted: Mon May 20, 2013 8:03 pm 
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1275cc
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Location: Sydney - strangely, I am glad of the sight of hills!!
Convertible Mini wrote:
One of my Bosch Planetary geared ones will be great for this engine. It will wind it over like it has no compression.


I can vouch for this starter. Dead easy to fit, delivered on time and turns my (mostly) GR built 1411cc with 10.8:1 comp no problems. Never an issue with the bendix gear getting stuck either.

cheers
michael

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the world is a book, and those who do not travel read only a page
66 Mini Minor sponsored by http://www.lifeonthehedge.com.au/ The Dog Harness Specialists
It was a pleasure ausmini. I'll miss all you misfits and reprobates ;-)


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 Post subject: Re: Starter
PostPosted: Mon May 20, 2013 8:10 pm 
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Joined: Fri Mar 19, 2004 6:19 pm
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Location: near Baulkham Hills, NSW
mickmini wrote:
Convertible Mini wrote:
One of my Bosch Planetary geared ones will be great for this engine. It will wind it over like it has no compression.


I can vouch for this starter. Dead easy to fit, delivered on time and turns my (mostly) GR built 1411cc with 10.8:1 comp no problems. Never an issue with the bendix gear getting stuck either.

cheers
michael

What he said ^^^ - before I fitted one of these starters I used to break teeth off Lucas starter pinions due to 11.0:1 C/R and 20° static advance (yes this motor needs this much). Like Mick's, it spins mine like a top.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:


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