Angrier td42t build

slidenyo
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Angrier td42t build

Postby slidenyo » Sat Sep 02, 2017 5:57 pm

Well last tune snapped the crank and orange is sitting idle.
Time to build it properly.
Balanced rotating assembly.
Shotpeened polished and nitrided.
Stage 2 cam
Valve springs?
Ported head and precups
Injector drop
Amputated qd32 manifold
Big gate and same old 3126 cat turbo
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Crash bandicoot
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Re: Angrier td42t build

Postby Crash bandicoot » Sat Sep 02, 2017 8:16 pm

bolting gussets to the block this time? or maybe an after market full length CNC bearing cradle to help stop the flex

:mrgreen:
Waiter...there is a drought in my glass.

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Re: Angrier td42t build

Postby coxsy » Sat Sep 02, 2017 10:53 pm

or billet crank shaft maybe
89 safari, pto winch, 33x15 simexs. sliders,75mm lift . turbo

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Re: Angrier td42t build

Postby slidenyo » Sun Sep 03, 2017 1:48 am

Haha did look at a cradle setup,
There is bosses in the block down one side of the mains,
Be interested to see the dakar 42 engine with its pants off,
Got a feeling harmonics killed this one,
Will sneak the piston/rods onto her flash digital scales haha,
After a couple bits though,
Precups - new (steinz?)
Qd32 intake mani (long runner 2 piece job)
Also thoughts on getting cnc waterpump impellers done .
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Re: Angrier td42t build

Postby tweake » Sun Sep 03, 2017 11:30 am

what was the cause of the crank failure?

any idea of what power/torque output it has?
what injection system is it running?

just wondering if its sheer big power, oil issue or vibration issue.
i havn't been on the patrol forums for a bit but there was billet cranks being made. however theres a fair bit of talk on vibration issues causing crank failure. part of that is flywheel weight but also front pulley.

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Re: Angrier td42t build

Postby slidenyo » Sun Sep 03, 2017 6:38 pm

Never dyno'd it.
Kept up with a trundle truck full of tools spares etc with slipping clutch in 3rd 4th,
That was 200kw.
My pumps a 12mm 1hd hybrid.
Turbo nozzles more crack pressure shimmed in.
Modded intake , cooler, airbox 4" to turbo inlet,
Standard twinscroll cat 3126 turbo think its an s200 under license.
Home tune to afr and egt.
14.6 afr bottom on accel,
550 max pre turbo egts,
Boost control off max fuel and foot,
Topped out at 43 psi in top gear wound out,
Easily hoiked front left.
Snapped clean through no.6 rod journal whilst idling home after work 4.30am one morning
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tweake
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Re: Angrier td42t build

Postby tweake » Sun Sep 03, 2017 8:31 pm

slidenyo wrote:Never dyno'd it.
......... with slipping clutch in 3rd 4th,

fit a new clutch?
check the clutch weight. i recall this being an issue when dealing with flywheel weights.

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Re: Angrier td42t build

Postby dvk-kp » Sun Sep 03, 2017 8:35 pm

slidenyo wrote:Never dyno'd it.
Kept up with a trundle truck full of tools spares etc with slipping clutch in 3rd 4th,
That was 200kw.
My pumps a 12mm 1hd hybrid.
Turbo nozzles more crack pressure shimmed in.
Modded intake , cooler, airbox 4" to turbo inlet,
Standard twinscroll cat 3126 turbo think its an s200 under license.
Home tune to afr and egt.
14.6 afr bottom on accel,
550 max pre turbo egts,
Boost control off max fuel and foot,
Topped out at 43 psi in top gear wound out,
Easily hoiked front left.
Snapped clean through no.6 rod journal whilst idling home after work 4.30am one morning



Awesome! Good post. :lol: 8)

Any videos of it running?

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Re: Angrier td42t build

Postby slidenyo » Mon Sep 04, 2017 12:44 pm

A couple on fb.
Nothing spectacular haha should have got it to the drags,
New build have a viper clutch to try and will ditch the clutch booster.
Will send front dampener to pressure plate to balancer.
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Re: Angrier td42t build

Postby coxsy » Tue Sep 05, 2017 8:44 am

that's how my engine was balanced all spinning gear balanced up :D
89 safari, pto winch, 33x15 simexs. sliders,75mm lift . turbo

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churchill
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Re: Angrier td42t build

Postby churchill » Tue Sep 05, 2017 9:18 am

Snapped crank, sounds like a dual mass flywheel would help here.

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Crash bandicoot
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Re: Angrier td42t build

Postby Crash bandicoot » Tue Sep 05, 2017 9:37 am

well atleast if ya went billet crank you could have the bearing journals bored out on the block and run larger journals over size bearings to give the crank more meat/strength where its needed.
Waiter...there is a drought in my glass.

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Re: Angrier td42t build

Postby slidenyo » Tue Sep 05, 2017 10:54 am

Yeah fair call ,
Dont have the cash for a crank as well unfortunately,
Will just have to leave the tune about where it is but drop the compression a tad and fit a gate to regulate boost.
When i get some more bush cleared and some regular income off my block i'll look at it i reckon. But then i did consider an fd46t swap instead of rebuild.
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Re: Angrier td42t build

Postby Twodiffs » Wed Sep 06, 2017 3:25 pm

There's a lot of instances of crank failure now in Aust, all determined
to be harmonic issues when you've got big power. But some of the failures
they have had have occurred during normal driving. Billet cranks seem to be
the go but not cheap. I've just put a new clutch in so I changed the flywheel
to an aluminium one which is a few kg lighter than the factory one, that and renewing
the front balancer.

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Re: Angrier td42t build

Postby slidenyo » Fri Sep 08, 2017 7:05 am

Now that's another thing to look at.
Alloy flywheel what'd it set you back?
Have had billet 3.8 ones made at about $550.
Not sure I'd want to carve the meat out of a standard one but could be worth looking at.
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Re: Angrier td42t build

Postby slidenyo » Tue Oct 03, 2017 6:14 am

Starting to have a play before i buy a new set to port and fit,
Will get it how i want it then make some tin profiles to get them the same.
Mainly a blend job an slight enlargening of the mouth.
Also a small radius on th tip point in the cup to stop the heat cracking it so much.
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Re: Angrier td42t build

Postby slidenyo » Thu Oct 05, 2017 1:41 am

Bit more into it.
Might be time to get a virgin set and lay into them.
Precomp chamber volume will be increased and air/fuel exit resistance decreased.
Also going to set the injectors 60 thou deeper by taking down the heat shields.
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Re: Angrier td42t build

Postby slidenyo » Thu Nov 16, 2017 6:20 am

Few more bits on the way.
S200g Borg turbo from turbocare.
Twin scroll .64 ar gated housing 20 pound actuator.
Billet lightweight flywheel to suit viper clutch. (Quite reasonable price too $650+gst)
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Re: Angrier td42t build

Postby Twodiffs » Thu Nov 16, 2017 7:53 am

slidenyo wrote:Now that's another thing to look at.
Alloy flywheel what'd it set you back?
Have had billet 3.8 ones made at about $550.
Not sure I'd want to carve the meat out of a standard one but could be worth looking at.


Sorry slidenyo...only just noticed this.
Wasn't cheap, $1000 Aussie dollars but machined up by a guy on the Patrol forum and Faceache specifically for TD42's.
Then Customs put their rape charge on as well.

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Re: Angrier td42t build

Postby slidenyo » Thu Nov 16, 2017 12:19 pm

No worries decided on billet as I'm getting it balanced anyway.
And happy to support the kiwis building them. Will get a cad file out of it too.
So if anyone else is keen they can grab one.
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Re: Angrier td42t build

Postby slidenyo » Sat Nov 25, 2017 12:04 pm

More pieces to the puzzle.
Turbo and precomps turned up.
Picking up flywheel Monday.
Cheers to Jarrad at turbocare for the loader turbo
IMG_20171125_122312.jpg
IMG_20171125_122312.jpg
IMG_20171125_122327.jpg

IMG_20171125_101041.jpg

Even the young Sid's happy bout dads plans
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Re: Angrier td42t build

Postby lax2wlg » Sat Nov 25, 2017 4:28 pm

Awesome stuff Jase, love the tech details and research in your work.
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Re: Angrier td42t build

Postby slidenyo » Sat Nov 25, 2017 7:03 pm

We shall see if all the worship to numbers pays off think ill chuck it on the engine dyno at kopu engineering once its run in.
Cheers josh wheres the rano now? Still in storage?
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Re: Angrier td42t build

Postby slidenyo » Thu Nov 30, 2017 5:55 pm

And more stuff
20171127_114603.jpg

Light
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Re: Angrier td42t build

Postby lax2wlg » Mon Dec 04, 2017 6:36 pm

slidenyo wrote:Cheers josh wheres the rano now? Still in storage?


Can't shake the stupid thing :roll:
Low priority at the moment, but I have this IFS front cut sitting in the corner, will eventually use it as a testbed for the coilover/long travel project...
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Re: Angrier td42t build

Postby slidenyo » Wed Dec 06, 2017 1:45 pm

Get the diffhead bang in the centre using an irs half shafts? Then a second transfer case to get drive out the side?
Or just narrow the ifs diff?
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Re: Angrier td42t build

Postby lax2wlg » Wed Dec 06, 2017 4:07 pm

slidenyo wrote:Get to the diffhead bang in the centre using an irs half shafts? Then a second transfer case to get drive out the side?
Or just narrow the ifs diff?


Extended a-arms, increase total track width by about 4-6" for mega stability :wink: Then a full float Atlas rear end/spacers to match the rear.

Defo IRS shafts, likely the 300ZX turbo 30mm axles with Safari outer CVs. Seems like the inner spline count might be the same, and they are a good length
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