Lots to build for my swap so getting into the computer to start with. Might not look like much but already a good few 'lunch' hours involved

Engine bay:



Mounts:

Making these this weekend so will soon see how far off the model is.

Drivers side exhaust manifold, input on these welcome. Not a fan of spinning the stock manifolds so thought i'd have a go at these



I've got the basic radiator and cooler shape done, also need to do a new upper intake, passenger side exhaust manifold, maybe sump, drop down bracket for the ps pump, alt bracket for the opposite side of motor, plus a few other little bits and bobs. Enjoy

Very nice computer generated stuff , forget it though.
Get stuck in to the real thing and all this is for nought.
Real world stuff never really works out like this.Nice piccies though.

Depends on how good you are with the tape measure Mounts were almost exact from model to car.

Agreed, gives a great overall view of how you would like things as well.
Excellent on the mounts ! I find I invariably have to change something somewhere..
How far is the actual build ?

im 50/50 on computer mockups

i mean, the old rule of 'garbage in, garbage out' holds really true. and theres nothing like 10mm of 'fuckup tolerance' around immovable objects like wheel arches and strut towers or more... haha

i do like making stuff like engine mounts and various brackets etc in CAD, and then getting materials jet cut. makes welding/assembly HEAPS easier and neater (as long as it correct) but id say it takes some balls (or good software) to pull off stuff like headers and cooler piping theres some mob in the UK that can take a CAD of your motor and engine bay, then automate the design of a fully optimied header system in the allowable space, AND then make if for you, but jesus that would be expensive!

but yeah, ive always found planning something will only get so far before a true life mockup shows up all the faults and impractical things that you cant get a feel for on a CD model. like how to get a tool in to tighten hose clamps, or some other crap that you simply dont think of.

looks great though so far. duting to IC cores??

cheers
ed

Very true. I think the key is knowing your model and knowing where your tolerances are, where you might have problems etc. Can't afford 10mm fuck up clearance cause its just not there around the heads, would be good though. Headers i'm actually not that worried about as far as fitting goes. I'll remeasure the space with the engine in and redraw. Biggest problem will be my cutting and fabbing skills. I'm stepping down runner size as close to the heads as possible to save space, anyone see a problem with that? (compared to spinning stock manifolds around)

Should've got the mount plates water cut, but the mounts were drawn before the engine got anywhere near the car so thought i'd play it safe. Turns out I could have saved myself a day on the oxy.

Getting tools in.....haha, i've thought of it, and ruled it out accordingly


Not too far yet. Need to finalise the mounts then got to relocate accessories so i can make headers and mount turbos.


ducting? Its coming, like everything else it will be tight. I've moved the turbos slightly since the pic above. Will model the passenger side manifold and add ic pipes to suit.

Few updated pics:





Really not sure about that space ship of a plenum. I've got the throttles there so I can use the ISCV from the 5s tbs, but that may foul on the fuel rail anyway. Gotta measure up.

Hanging out for some parts before finishing off the mounts. Got a mocked up radiator that i'll play with this weekend to get the size right. PS pump is in for measuring and might get a temp bracket made up this weekend too.

work in progress:

manufactured from diagrams and measurement alone? or mocked up in the real bay also? if the former, i admire your confidence! nice work

any thoughts behind the stepped primary?

All cuts made to the model bar the last straight section on each - that was used to cover up lack of skill It was in and out of the car after every runner, but thankfully didn't have any troubles with the fit.

Thought on step - hard (impossible?) to get all larger diameter out past the head and still have room for the PS pump on one side and altenator on the other.

I wanted to make the manifolds so thought i'd give it a shot stepped down as opposed to stubs and a single larger diameter collector. I must say though the pipe diameter looked bigger on my computer screen Fingers are crossed

Pipe dia should be fine...1.25inch internal? You want velocity and i've fopund that anything larger than 1.25 hurts respones on 2 litres and bigger gives no extra power.

I prefer short runners for turbo but a more diffcult option for you i guess?

One worry would be cracking, those long runners will expand/contract a heap. Maybe think about a bellow in there? i'd be making them outta thick wall steam pipe too? dunno, tough one.

Sounds good to me Its 1/1/4outside, so about 1/1/8 inside. I'm hoping for some better spool than reversing the stock manifolds would give, if not I guess I've paid $500 to expand my fab skills and have funky looking manifolds. Win either way I reckon.

Have to run the in-front east/west turbo config, so short runners are out. Opinion on split vs stock style header in this case?

Nice progress.

Not sure on the stepped header design?
Small pipes as Justin said are good for small/medium horsepower although with the pipes that long you may have the boundary layer build up and restrict flow somewhat?
The thing that offsets that (although probably not much at all) is heat loss and contraction of the exhaust gasses.

Response/spool will be good though and with all the pipes separate right up to the collector also helps stop reversion between cylinders, which means you can run a bit more ignition timing.

Looks like Inventor drawings, I used to do a very small amount a fair few years ago and it was great.

Driver's side is in. Probably going to knock about 10mm off the collector to drop the turbo down a bit and bring it back a bit. Should be sweet then. Few pics of the clearance:

PS pump fits really well. Should be able to get it where i think the stock alt sits with a bit of modding.





Other side might be tricky as the altenator is a bit bigger than the ps pump, as well as sitting very close to oil filter outlet, but design looks good so should be able to get into that soon.

Anyone know their water coolers? I've got an intercooler on the way that i'll be using for the cores and going to weld tanks top and bottom with some fittings. I've got 10mm top and bottom. Not sure if water coolers should have some 'buffer' volume in them? or is it a matter of getting the water in and out as quick as possible?

1 runner to go, woo hoo



I thought I'd get most of these done in a long weekend, its been a month of sundays and then some. Damn wedding plans

shit, i hope i can fit shorter ones in my hilux, they do not look fun to make!

good job tho mate!

I think you can fit the turbos on the side of the engine on the Hilux? Not an option in the Supra, either merge all the pipes early and run a long single pipe out to the turbos on the front, or have 4 unequal length long runners split to the turbos.

Went the with the latter obviously. If its no good I'll shed tears briefly (I'm saying that to sound manly, I'll probably cry for days, haha) then start designing Version 2

haha good plan, best of luck!,