And it begins: the 6A13TT tear down and build up thread!!

[Adam.Findlay]

As per the title this thread will follow the progress of my complete teardown and build up of my spare 6A13TT for use in my 99" Facelift Legnum

as so far the engine has been accordingly stripped into each of its components, and part by part they are receiving a heavy amount of degreaser to get them looking semi decent.
Images to follow in the next few days when the garage gets a clean out

in short the plan is
a general rebuild, gaskets, bearings, cambelt, waterpump ect... along with
-flowed and rebuilt heads with the possibility of larger valves, titanium valve springs and retainers and a cam regrind
-forged pistons and rods
-custom exhaust manifolds supporting 2x GT2860R turbos (or maby not ball bearing depending on cost)
-acid washed block with rebored/honed bores
-remote oil filter and cooler from the block eliminating the need for that silly filter neck that hangs down.
-uratane engine mounts
-possibly something with the crank but unsure at this stage


so far all I have done is get all four urathane engine mounts from prothane usa. hopefully have the installation of them documented this weekend.
and i have been visiting all possible shops in chch to get them on the hunt for forged internals. both CHS and S.P.E.C are on the hunt for me will post prices as soon as i know them for any one intrested
and I have taken the factory manifolds to a laser cutters to get flanges made so i can weld up exhaust manifolds, pics will also be uploaded when i receive these back.

any opinions and ideas welcome.

[scott.mohekey]

Hmmm... could be interested in doing the same as you with one of my spare blocks. Might reduce costs a bit if we buy two of everything.

[Adam.Findlay]

well this build is going to take me a good year. due to funds. im keen to do the leg work on parts if you can come up with money to back bits up. as ive said above i have already got manifold plates made but have to go back to make the t28 flanges for the turbos so can ask for another set of manifold plates for you if you would like.
and i have already got a price from mitsi for cambelt, water pump idlers, tensioners, and gasket kit. thats the prices im gna try beat by shopping around.
i beleve shane (fully) also wants to get his heads flowed if we go in 3 for that could get a good price

[hedric15]

You can also try to pm fuel. He gave me a good deal on a cambelt kit. Local stores like repco n suprcheap are really expensive.

[scott.mohekey]

I'm in no hurry... just as money comes along really. I know we can get a lot of parts from partmaster at very good prices.

[scott.mohekey]

Oh, and at this stage I'd only be putting stock turbos on there, so don't need any flanges made.

[ILLEGAL]

best thing to do with the crank would be to get it nitrated by heat treatments. (not sure how to spell that)

[Adam.Findlay]

hmm where could i get the crank worked here in chch.
cool well ill flick fuel a pm and see what he can do. cos all the bits i need from mitsi added up to 1600 which is ridiculus

[scott.mohekey]

Can you put up an itemised list of that?

[hedric15]

hmm where could i get the crank worked here in chch.
cool well ill flick fuel a pm and see what he can do. cos all the bits i need from mitsi added up to 1600 which is ridiculus

If I'm not mistaken I got my kit for 420 and came with a gates belt. I think he ran out of gates n supplying original mitsi now for 440.

[taupodrifta]

you can get forged pistons and rods from RPW in auz but they not cheap. what ever happened to the people that were looking into if we could use evo forged pistons?

[Adam.Findlay]

evo ones are to big but gsr ones are the same bore, i think the deck height is different though, SPEC performacne here in chch is currently researching into and cross compatibility of internals for me, they seemed confident, because they said they use honda b16 rods in building 4AGE's

and for scott\

MISTUBISHI GENUINE PARTS excl GST
01 JCMD975559 Engine Gasket Kit 799.29
03 JCMD318814 Valve Timing Belt 216.14
04 JCMD308593 Timing Belt Adjuster 181.9
05 JCMD316826 Timing belt Pulley 56.19
06 JCMD179597 Timing Belt Pulley 65.97
07 U401/GWM-55A Water Pump Assembly 117.7

PS. dont forget to add gst to those prices. that was genuine from donnothornes down the road from kaynes work

[Adam.Findlay]

so far CHS here in chch have told me that they think we can use SR20det rods if we get custom pistons made, custom pistons coming in a an estimated 1400+ gst
am still waiting to hear back from SPEC. and redline performance were no help at all

[Fully]

Interesting post my maties.

I just had my block honed/both head decks milled and a deglazing.
$215 + gst from Mace Engineering.

Engine gasket set I think I can source for $500-$550 including.

So thats 5 rebuilds in different stages =)

[Adam.Findlay]

5 rebuilds?. your build scotts build and my recent endevour

hmm i may have to ask you kindly to source me a gasket set in the near future man.

and did you get your block acid dipped, as the one i have is pretty disgusting on the inside and has a whold lot of grit on it from it sitting in my garage

[scott.mohekey]

I forgot to respond to the list of timing belt parts. I believe partmaster has genuine pulleys and the hydraulic tension adjuster for less than mitsi. They don't do a genuine belt though.

[Fully]

5 rebuilds?. your build scotts build and my recent endevour

hmm i may have to ask you kindly to source me a gasket set in the near future man.

and did you get your block acid dipped, as the one i have is pretty disgusting on the inside and has a whold lot of grit on it from it sitting in my garage

You are forgetting Kayne and Toms builds.

Yes the block was acid bathed.
As long as there is no real rust inside the bores they should be all ok.
I will confirm the price of the seal kit when I get mine. Should be just after christmas now!

[Adam.Findlay]

@Fully: oh kaynes pretty much rebuilt a stock motor, and i dont know tom.
well if you wanna put me down for a seal kit if buying two at once makes it cheaper but if not ill leave it to a later date.

@Scott: yeah sounds god to me man i just went to mitsi to see what it was like. next time i have free time im going to try get better prices. as long as i get a good gasket kit and genuine cambelt and waterpump ill be happy.

[scott.mohekey]

I've not heard any reason to not use an after market water pump, and have used two so far with no problems.

[Nutter_John]

Adam just been throwing some figures into my turbo calculator and for a stock displacement vr4 using a 12 afr ( as your forging thats an ok figure to use , stock internals I'd use 11.2) and assuming you were going for a twin setup then the 2860 range of turbos all would have you well out of scope

basic figures to work from for 450 bhp atf mapped at 12afr are as follows

airflow required = 49.5 / number of turbos (24.75 llbs/min)
Manifold absolute pressure = 18.55 * number of turbos (absolute PSI)
Pressure ratio = 2.85 (assuming 2 psi drop from compressor to inlet manifold - intercooler and pipe work drop)

So on the 2860 compressor map you sit at point one at 7250 rpm and point two at 5000 rpm (as at 5000 rpm you only need 12.87 llbs per min )
vr4_map-12afr.jpg

Hope that helps