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 Post subject: Re: 84 TG Rally Car Project
PostPosted: Thu May 21, 2015 2:34 pm 
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Gem WRC wrote:
The Coupe will be getting one of these too :D

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Oh elll-ohhh!

Whats the plan spec wise? Spill! :D

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 Post subject: Re: 84 TG Rally Car Project
PostPosted: Wed May 27, 2015 8:14 pm 
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Location: Camden
Well.........as people know, most things have to made for these engines.
That's what I am discovering now :roll:

Forged CP Pistons are being made now, have Carillo conrods, stainless valves being made now too,
All new bearings, seals, chains, water pump & gaskets (Genuine Isuzu parts), all ARP bolts & studs,
10,000rpm dual valve springs, 290/288 Camshafts (specially made buy JUN Machine Shop in Japan)
Lightweight Chrome moly billet flywheel, AND Dellorto 48 DHLA's hanging off the side :D
I have just finished the head work, porting/polishing too.

As for the coupe body, looking around for a TG front & rear end to put on to it.


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 Post subject: Re: 84 TG Rally Car Project
PostPosted: Thu May 28, 2015 9:12 am 
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Location: Canberra. Where the Fast Geminis live
Big coin to build that then?

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 Post subject: Re: 84 TG Rally Car Project
PostPosted: Thu May 28, 2015 4:30 pm 
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sounds like it!

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 Post subject: Re: 84 TG Rally Car Project
PostPosted: Thu May 28, 2015 7:53 pm 
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Yeah I know........ way too much to spend on a Gemini :lol:

The only real big things are the pistons & camshafts. The rest
isn't too bad. Build it once, build it right :wink:


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 Post subject: Re: 84 TG Rally Car Project
PostPosted: Thu May 28, 2015 10:12 pm 
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It's your money, your choice! Geminis are worth it ;)

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 Post subject: Re: 84 TG Rally Car Project
PostPosted: Fri May 29, 2015 11:40 am 
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Gem WRC wrote:
Well.........as people know, most things have to made for these engines.
That's what I am discovering now :roll:

Forged CP Pistons are being made now, have Carillo conrods, stainless valves being made now too,
All new bearings, seals, chains, water pump & gaskets (Genuine Isuzu parts), all ARP bolts & studs,
10,000rpm dual valve springs, 290/288 Camshafts (specially made buy JUN Machine Shop in Japan)
Lightweight Chrome moly billet flywheel, AND Dellorto 48 DHLA's hanging off the side :D
I have just finished the head work, porting/polishing too.

As for the coupe body, looking around for a TG front & rear end to put on to it.


Owwwwwwwwww yeaaaaaaaaaaa!

I started building mine then shelved it for the time being. It *might* make a re-appearance much to Jonnos dismay if i can get a straight answer on wether or not the engine is IPRA legal.

180 or 200 based?
What sort of lift have the cams got? Im assuming thats your advertised duration?
Whats the CR your shooting for?
Were the carillos an off-the-shelf or custom made item and what do they weigh in at?
What fuel are you using on it? [Dunno rally rules]
Why is the sky blue?

I have so many questions! Lol

PS seeing as your dealing with JUN/have the contact....have you asked them bout the 4.5kg flywheel they make for these things?

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 Post subject: Re: 84 TG Rally Car Project
PostPosted: Tue Jun 02, 2015 10:54 am 
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You know the conrods are identical to g200Z so you can just use spool rods. . I'm getting cp pistons made for the group A car too, little way down the track though as I have to get the body done first. What comp ratio and fuel are you using? I was thinking I would have to send them a plaster mould of the comp chamber to get mine done!

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 Post subject: Re: 84 TG Rally Car Project
PostPosted: Tue Jun 02, 2015 7:51 pm 
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Cams sound exxxy
Keen as for something like those . maybe one step down lol
Top stuff Ashley


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 Post subject: Re: 84 TG Rally Car Project
PostPosted: Tue Jun 02, 2015 11:17 pm 
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Yeah Coxy, same rods as G200Z. I wouldn't use Spool rods in my lawnmower though :lol:
The comp will be around 11-11.5:1 & it will be on 105 octane fuel.
CP actually have a mould & drawing of the Twin Cam head chamber, they also
have made quite a few pistons for the Twin Cam's already.
I'm in the same boat.........have to finish the body first too :roll:

Cheers Darren :) The cams are more suited for torque than outright power,
I will let you know how they go.


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 Post subject: Re: 84 TG Rally Car Project
PostPosted: Wed Jun 03, 2015 2:51 pm 
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Korean Jesus
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Location: Canberra. Where the Fast Geminis live
Spool no good?

Am some what interested in this twin cam build all of a sudden.

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 Post subject: Re: 84 TG Rally Car Project
PostPosted: Thu Jun 04, 2015 2:46 am 
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The twincam rods actually have squirters built in to cool the pistons, I'll be running spools in mine but am retrofitting remote squirters to keep the piston temps down.

I like the sound of your build mate, I'm in the early stages of getting the gear together to build my own ;)


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 Post subject: Re: 84 TG Rally Car Project
PostPosted: Thu Jun 04, 2015 9:57 pm 
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Nothing wrong with Spool rods, I know plenty of people running them with no issues. Including Damo's 914hp at the wheels G180Z!

Allen the G200Z has the oil squirter holes in the rods same as twin cam :)

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GARAGE REDZONE sunshine coast ph 07 54433507

1975 TX coupe 4ZD1 efi turbo 10.787 @ 123/128
1977 TC Fashion Pack sedan draw through turbo
1984 TG PF60E dohc Group A racecar
1984 TG Panelvan
2006 Crewman SS 6.0


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 Post subject: Re: 84 TG Rally Car Project
PostPosted: Thu Jun 04, 2015 10:15 pm 
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Ah now that I didn't know, cheers :)


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 Post subject: Re: 84 TG Rally Car Project
PostPosted: Sat Jun 06, 2015 11:51 pm 
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Yeah I haven't heard any major issues with Spool rods. Just some of the tolerances aren't on the money
all of the time & the finish quality of the rods aren't great. AND the thing that stops me
using them........... they are Chinese. What isn't Chinese these days though?
I actually have a set in the box still, I just couldn't do it :lol:


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