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Nizm0zed's coupe


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#41 luvemfast

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Posted 16 December 2008 - 08:50 AM

I have a 3D model of a plenum, if you would like.
They are more suited for a turbo set-up.
Something to use as a guide.

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#42 nizm0zed

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Posted 16 December 2008 - 09:20 PM

i would love to (and THAT one was the initial plan) and maybe down the track i'll make a second one and do that, but for this initial one, its going to be basic runners into a round plenum.

my wife and i are expecting a baby girl in may, so i am trying to get as much of the big expensive stuff done as soon as possible, before the handbrake stops my rampant spending ;D

anyways, did a bot of work sanding a bucket, and blending it to the guard, so while that was drying, i finished off mouting the battery.
needed to make up all the brackets to hold the battery in place. later, i'll work out where the ECU, relays and Alarm will sit.
Posted Image16122008186 by Alan Hartcher, on Flickr

#43 nizm0zed

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Posted 25 December 2008 - 08:56 PM

jeebus, dropped down to the 15th place, guess i better update huh.

ok.
did a bit of joining almost a week ago, and attached the headlight bucket to the guard, smoothed it all off, and dropped some primer on it.
Bit of a test fit, dummied up with all the other bits there.
Posted Image20122008192 by Alan Hartcher, on Flickr

that looked pretty good, so today (after lunch with the inlaws) i got into it again, saneded the primer back and dropped some paint.
Posted Image25122008196 by Alan Hartcher, on Flickr
(btw, thats not a rum and coke on the roof, its a motivational beverage ;D)

im quite happy with how the paint is coming out, so i think i'll keep painting it panel by panel, and maybe just get a spraypainter mate to do a final coat, and clear once its all together, so it is smooth.
Its good practice for me anyway, and i can claim that i painted it myself ;)
Its only acrylic, so any imperfections (read, F&^kups that i do) can be easily worked out of the paint.

I have recently found out that the megasquirt ECU i have is set up for fuel only, so i'll have fun redoing that for full control, i have found a sweet spot that is hidden, but easily accesable for the laptop cable, pictures when i get to it.

#44 Michael

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Posted 25 December 2008 - 09:42 PM

Wow man, Some really cool stuff going on at your end especially the smoothing of the gap between guard and light bucket i have never seen it before, And would be cool to see in a meet sometime during the year,
Overall Very nice mate Well Done!

#45 zzzzed

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Posted 26 December 2008 - 12:56 PM

My light surrounds are smoothed, they did crack after a while.  I wont be doing it this time
it does look good though

#46 modular9

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Posted 26 December 2008 - 01:44 PM

I painted my car myself as well. Best feeling in the world when you buff it up and you can see reflections. Love the fact that you got rid of the ridge between headlight bucket and quarter. Also Looks like you got rid of the aperture for the side repeaters ( not too knowledgable about zeds perhaps yours didnt have them from factory ) anyway thumbsup. Do keep us posted about the megasquirt as well. Really interested in that part of the build.

#47 nizm0zed

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Posted 26 December 2008 - 04:25 PM

yea, being 240z fibreglass guards, they didnt have the indicator openings, just some fine marks where they would have been cut out, so i just smoothed the marks off, and left them closed.
It'll add to the overall smooth look.

#48 nizm0zed

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Posted 09 January 2009 - 09:38 PM

i bought a new toy for the zed today, im friggin stoked.

Posted Image

and the best bits? because my car only needs to comply to ADR27 i can vent to atmosphere 8)
Oh, and it only cost me $200  8)

#49 marty

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Posted 10 January 2009 - 09:50 AM

Question for nizm0zed, why can you vent to the attmosphere? Is that a ACT thing or because of the age of the car?

Cheers

#50 zzzzed

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Posted 10 January 2009 - 12:00 PM

i think it is the age of the car. Here in south Australia pre 1973 cars don't have to apply to pollution laws.
None the less i will be plumbing mine back because i dint want to attract to much attention


#51 chris240

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Posted 10 January 2009 - 12:31 PM

yep 1973 ADR pollution control rules. It applied in all of Aust and most of the western automotive world !
(reason why a 1972 corvette is double the price of a 1974 corvette)
:P


#52 nizm0zed

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Posted 10 January 2009 - 02:01 PM

actually, its feb 76.
thats when ADR27a was introduced.
everything before that can vent to atmo.
remember though, you still need to comply to noise rules, so if its too loud, it can still fail.

you are right though pre 73, just about anything goes.
up till 02/76 there are some rules, but not many.
after that, you cant vent to atmo (turbo, crankcase ect), you need a charcoal canister, PCV ect ect.

#53 nizm0zed

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Posted 11 January 2009 - 01:44 PM

okies, been working on my new manifold.

firstly, i found a brilliant free program on the net, for working out how to cut pipes so they fit together.
its a massive timesaver.
http://metalgeek.com/static/cope.pcgi

from there, i started with a runner, cut to roughly the right length.
Posted Image11012009215 by Alan Hartcher, on Flickr

then i got my template.
Posted Image11012009217 by Alan Hartcher, on Flickr

put it on my pipe,
Posted Image11012009216 by Alan Hartcher, on Flickr

marked it with spraypaint,
Posted Image11012009218 by Alan Hartcher, on Flickr

and cut out the painted bit.
Posted Image11012009219 by Alan Hartcher, on Flickr

from there, i took my new peice of pipe, and marked it against the plenum, again with spraypaint.
just hold it against it, and spray around it.
i cut that out, and trimmed the hole.
after that hole was perfect, i made a template of it, to do the other holes.
Posted Image10012009206 by Alan Hartcher, on Flickr
Posted Image10012009207 by Alan Hartcher, on Flickr
Posted Image10012009205 by Alan Hartcher, on Flickr
Posted Image10012009210 by Alan Hartcher, on Flickr

the other holes were marked, and cut, needing LOTS of careful drilling, and then grinding out with a die grinder.
Posted Image10012009211 by Alan Hartcher, on Flickr
Posted Image10012009212 by Alan Hartcher, on Flickr
Posted Image10012009213 by Alan Hartcher, on Flickr
Posted Image10012009214 by Alan Hartcher, on Flickr
Posted Image11012009220 by Alan Hartcher, on Flickr

once i had done all the runners, it was all carefully placed together, to see the fit.
Posted Image11012009223 by Alan Hartcher, on Flickr
Posted Image11012009224 by Alan Hartcher, on Flickr

you can see that each runner is numbered, thats because each runner is ground specifically for each hole, as they arent a 100% even match. this ensures that it'll all be as close as possible when i weld it together.

now i have to make a jig, to keep all the runners even, and in the right spot, so i can weld them to the plenum, then trim the ends to the right length and weld on the peice of manifold that i trimmed earlier.
once thats done, i'll smooth out everything inside, and weld on an end plate and throttle body mount.
then i can keep doing the intercooler piping, and mount that stupidly oversized BOV. ;D

yes, lots of pics i know, but this is the first one i have done, and i figure others would like to see how easy it is to actually do in your own garage.
this is all done with simple tools, a hacksaw, 4" grinder, hand files, die grinder, cardboard and markers.
If you dont have the facilities to weld it together, you can allways take it to a shop to be done for you.


#54 zedevan

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Posted 11 January 2009 - 08:21 PM

looks good to me, how did u work out what large diameter tube to use? does it have the same cross sectional area of the 6 smaller tubes or ?

actually, its feb 76.
thats when ADR27a was introduced.
everything before that can vent to atmo


my car was made in january 76! so that makes me very happy, the vin plate only has adr 27 listed, seems like i narrowly dodged a bullet there...

#55 nizm0zed

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Posted 11 January 2009 - 09:15 PM

I picked the diameter of the tube for the plenum out of thin air ;D

no really, i did.

im sure there is a fair bit of math, and theory to it, but i went with the rule that the capacity should at least be the same as the engine capacity, that and the 4 inch tube matched well with the throttle body that'll go on there.

#56 sco_aus

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Posted 12 January 2009 - 08:00 AM

Nice work Allen.

#57 marty

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Posted 12 January 2009 - 11:19 AM

actually, its feb 76.
thats when ADR27a was introduced.
everything before that can vent to atmo.
remember though, you still need to comply to noise rules, so if its too loud, it can still fail.

you are right though pre 73, just about anything goes.
up till 02/76 there are some rules, but not many.
after that, you cant vent to atmo (turbo, crankcase ect), you need a charcoal canister, PCV ect ect.



Sorry if i'm asking obious questions, or if askin them in the wrong place but, ok here is my delema, in nsw 1976 260 though have a 74 in the shed so I could say its a 74, its fitted with a rb20 of the 1990's do i need to comply with these ADR or not, including blowoff valves, pod filter and width of tires? or where can i find the rules

any help would be GREATLY appretiated 

#58 sco_aus

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Posted 12 January 2009 - 11:30 AM

My car in ACT went off the age of the vehicle, not the engine, so you should be ok...

#59 nizm0zed

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Posted 25 January 2009 - 09:20 PM

well, still around, finished a 16 day week (in retail :o) and had the weekend off, back to work on monday for 7 days straight.
I have a full week off after that, so hoping to get a bit done.

i have mounted my willwood rear bias adjuster, and have been working on the wiring under the dash.
I have incorporated the Alarm, Central locking, power mirrors, windows and stereo into the factory loom, Inc proper plug connections.
worst bit is i have to anticipate how i may change the car later down the track, and put the wires in now for it.
Im thinking with the big ass space that was left under the dash after removing the heater box, i'll mount the amplifier, and build a carputer for it, replacing the heater controls with a 10" touch screen.
yea bling i know, but isnt it obvious im not interested in concours?
short term though, it'll just be a regular stereo for the sake of some tunes.

more progress pics in a week, i promise :)

#60 boof.85

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Posted 27 January 2009 - 05:50 PM

i was thinking when making my intake to slice the pipe in harf so i can get a better seal then have it bolted together with a flang around that.
so it can have a gasket and yet not restrict the airflow.
u are one very tiddy worker.
i wish my cars where that clean




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