Originally Posted by mrs jones
all good things come to those who wait
ok so i'm trying to sort out little gremlen's anyone give me a hint on best oil breather setup for the chev? It's putting oil out the chrome breather, thinking of throwing a catch can on it? any idea on size of fuel pump i need? running rattler pump atm.
all good things come to those who wait
Got a PCV valve on it? It'll probably fume without one and spit oil out the breather like you're seeing. Sealed catch cans (oil air seperators) are a good idea too, plumb the PCV into the seperator, then the seperator into manifold vacuum. Run the breather from the other valve cover up into the air cleaner so it gets fresh/filtered air and at WOT any crankcase fumes will go back into the motor.
mucked around with cooling system the sarvo moved the water pump position a bit, to help bleed pump up (pump isn't self bleeding) she was idling for ages 60' c happy
on closer inspection 1st gear is more for towing lol would be interested to know what the top speed of this was.
Ok so after stuffing around 1st gear 61kmph, 2nd 103km, 3rd 152km haha
thanks for info krisr much appreciated, btw no pcv dirty old pre pollution,
and the rocker covers have no baffles under breather probably part of the problem.
Last edited by narooma motors; 13-12-11 at 08:25 PM.
all good things come to those who wait
Got room for a mechanical pump? Easiest way to go with your setup. If not a Carter or Holley red/blue/china version would be fine.
You'll want your towing ratio when you're on a sticky rubber covered burnout pad. I hope you tested those speeds on the brakes
tested on computer buddy lol, have to set timing and idle mixtures yet, hook up a line locker then i'll let you know;^).
Rattler pump seems to be keeping up fine atm not that i've tested it much, thinking of putting reg and guage on it though.
hopefully upload a vid of it soon ... can't host one on here ??
all good things come to those who wait
Rattler you mean like a facet little square block thing? They only make 4psi I think but a gauge would be good with whatever pump you run
The trouble with fuel pumps is you usually find out they don't keep up at full noise when it leans out and the engine shits itself
yeah lean out is what i'm worried about ... this rattler 6-7 psi which i think is a bit much for carby
all good things come to those who wait
Not sure on a Q jet but for a Holley 6-7 is spot on. If it's not pushing past the needle and seat and flooding it's fine
yeah got told 4psi, pumps in boot though so might have pressure drop
all good things come to those who wait
Quadrajets need volume (not pressure) as they have a virtually non-existent fuel bowl so about 4-5psi is where you want your pressure so it doesn't overcome the needle BUT make sure your supply line from the tank is either 5/16" or 3/8" (preferrable) and make sure you have a good pump and regulator as the thing will go dry in seconds on a healthy motor wide open. Also some quadrajets have a bronze filter in behind the inlet fitting, fuck that off and just use a ryco in the line somewhere because they're a restriction I found.
yeah mate running 8mm line there isn't a filter in the carby probably been discarded years ago. Just running gauze filter screwed into fuel pump atm will put disposable in soon. trying to find a decent reg and gauge that isn't to dear.
Left it running for a while the sarv out front of shop, got up to 80'c switched fan and pump on dropped back to 65-68 quickly seems to be working well
what you set the timing to on these been lazy haven't looked it up
all good things come to those who wait
I'm a weird cunt I always set total timing not initial. Chevs with old style heads usually like 34-36 degrees total
12degrees btdc? with vac line off
all good things come to those who wait
I'd still check total. Total is whats gunna make it ping and where it will make power. Its what counts because this thing will be spending some time doing a few revs and getting punished. Just rev it up to 3000 so all the mechanical advance is in and see what its got.
But yeah 10-12 initial will probably work
mate,
i'd seriously look at upping your fuel supply line to at least 7/16, the standard size on a holden is 5/16-8mm, and they get found wanting on a basic 253. at least if you put a decent size in now, it will be sweet for future upgrades.
34 degrees of timing (total) will be hear enough. just remember to check your balancer is zero'd on the timing mark, as its piss easy to over look while ya got every thing else going on.
i reckon you may end up needing baffles in ya rocker covers, or just go a catch can as sbc's can be heavy breathers.
keep up the good work.
cheers yeah still trying to sort little gremlins out hopefully we get it sorted for nats,
auto dipstick is buggered and leaking (new one on order), rebuilding master cylinder, got a carby kit there for it too.
waiting on oil breathers one with pcv in it, waiting on fuel gauge and reg.
We only have a shit non adjustable timing light might go borrow one and check timing at 3 grand later on.
still guessing on FUEL pump thinking i should go a carter 72 / 100gph one.
all good things come to those who wait
Ok so got our chrissy pressies today,
new engine breathers (one with a pcv) and fitted them the sarv
b&m line locker trying to sort fitting's out for this... looks like tapered thread... anyone fitted one of these?
new dipstick
checked fuel pressure 7psi atm will put reg on as soon as i get it/
all good things come to those who wait
few pics after i we got home, didn't get any at nats but,
didn't enter car in burnouts, had a few dramas
was a good weekend though boys got a bit of cruising in.
and i nearly popped tyres on tha trailer in caravan park haha
all good things come to those who wait
awsome work mate. love the build. looks excellent
if anyone got pics of us throw em up
all good things come to those who wait
Its been a while, so I took this thing out and got it weighed the other day.
1120kg and does light up into second
Crikey Moses!!! thats mental engine choice,how does she drive or is it a drag racer? Just asking not taking the piss.
I havent had alot of chances to drive it but im pritty happy with how it drives, gilmer sounds nice, gearbox shifts instantly feels very positive and when you tromp it the front lifts a few inches haha. Needs a few little things to make it a better car. Like a reverse mount internal master, was thinking bout selling it
/ mat
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