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1  Camaro Research Group Discussion / General Discussion / Re: My New '68 Camaro Z/28 Butternut Yellow on: September 25, 2014, 07:23:52 PM
Has anyone told you to slow down and take a deep breather yet?

I have.

Only pour a quart or 2 through the valley and let it drain. Pumps tend to last..still running my Melling in the race engine, not going to tell you how old it is, but it was well in spec. so the engine builder asked really why change it ? Bad bearings are the culprit for low oil pressure in old Chevy's. Take a break from it. Mines off the lift right now and covered up in the corner, other priorities. mostly building an Engineer right now ! (son's in college) ,and keeping my daily's in tip top shape. Hang loose dude!
2  Camaro Research Group Discussion / General Discussion / Re: My New '68 Camaro Z/28 Butternut Yellow on: September 25, 2014, 06:20:57 PM
I agree with above....just pull the drain plug and pour the cheapest oil through the valley to flush out any remaining coolant. As long as you didn't turn the engine over you will be ok...everything is going to drain to the pan. Get rid of it. Did you pick up the Chevy rebuild book I recommended ? Figured somebody was gonna catch the coolant.




 
 
Re: My New '68 Camaro Z/28 Butternut Yellow

Reply #513 on: Today at 03:39:21 PM
Reply with quote 

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Quote from: TODD on Today at 02:41:44 PM

Danny;
Whoa! You start into that bottom end you are opening another can of worms here.
Just my opinion but if it ain't broke why fix it? Is something leaking?
I couldn't find a good new/original high pressure oil-pump. So It required a new pump/pick-up and so on.
Just say'n!












X2 and never, never use a high volume pump.   Ok as long as your using a higher capacity pan with kickouts. If not you'll suck the sump dry at high R's.
3  Camaro Research Group Discussion / Originality / Re: Fuel Pump Backing Plate on: September 24, 2014, 07:28:08 AM
Sort of remember it being black and cleaning it up to bare metal for a little detailing.
4  Camaro Research Group Discussion / General Discussion / Re: 68 RS Z28 - opinions please on: September 21, 2014, 04:47:47 PM
scratch that , just looked at the view by the stamp.
5  Camaro Research Group Discussion / General Discussion / Re: 68 RS Z28 - opinions please on: September 21, 2014, 01:49:32 PM
Someone mounted the alternator like a Pontiac.  Tongue

Paul

Little backyard innovation. I do not know how sturdy the mount was on the Kustom headers ,but personally I hate the after market brackets, (pre 69 set up) always an issue with bending, cracking and header leaks.  Looks..??.., but a functional solution was found utilizing what they had. Credit due.

Interested on hearing a little more about the car.

Can't make out driver's , wrong passenger head ,accessory holes. Late in the year?
6  Camaro Research Group Discussion / General Discussion / Re: My New '68 Camaro Z/28 Butternut Yellow on: September 19, 2014, 04:21:41 AM
yup..4.5.  round down.
7  Camaro Research Group Discussion / General Discussion / Re: My New '68 Camaro Z/28 Butternut Yellow on: September 17, 2014, 11:20:01 AM
Agree...just giving him some baselines out of the Overhaul Manual vs. what he may have in there now.
8  Camaro Research Group Discussion / General Discussion / Re: My New '68 Camaro Z/28 Butternut Yellow on: September 16, 2014, 08:04:09 PM
PV's are 1/2 vacuum at idle : 6.5 would be for 13"  at idle.   5.0 for 10"

Jets per overhaul manual: 69 primary/76 secondary's.  Leave the squirters alone.
 Dwell 28-32   point gap .016 used/.019 new
Plugs AC43 ( cross over to Autolites)
Switch to neoprene metering block gaskets if you have it apart.


Looks like no blow out protection if built 68 spec, but I'd still contact Holley on your carb.  What was your timing at full advance (over 3 grand on the tac ) ?  Timing tape.
9  Camaro Research Group Discussion / General Discussion / Re: My New '68 Camaro Z/28 Butternut Yellow on: September 16, 2014, 04:33:36 PM
Before you tear the carb apart call Holley ,or look up the number to see if it has blow out protection, I don't know what you have. The diaphragms are fragile on the power valves and are junk 1st back fire through the carb. Car will run poorly. Also...check your plugs to make sure you didn't foul one. Again ,car will run poorly.
10  Camaro Research Group Discussion / Decoding/Numbers / Re: Fuel pumps on: September 16, 2014, 09:32:55 AM
1 pint in 30-45 seconds across the board per 68 Overhaul Manual.  Average 37.5 seconds per pint=96 pints/hr.=12 GPH.  (.125 multiplier) roughly 2lbs. of fuel

     5-6.5 psi fuel pressure : 302-350, 290 hp-350 hp.

   (demand@ WOT)=(.5 lbs. of fuel per hour)HP ex: 290 hp x .5 = 145 Lbs/hr = 24.17 gph.  I however do not think many here are racing their vintage 302's at WOT for an hour ! Stock pump for stock driving probably fit the bill, engineers had it figured.

Now Bill, what do you think your Plymouth sucks down in a pass ? 2625#'s (car + driver) , 670hp (flywheel) 413 sbc will eat up around a half gallon between idling to staging-burnout-run-idling to trailer. Apples and oranges.
11  Camaro Research Group Discussion / General Discussion / Re: My New '68 Camaro Z/28 Butternut Yellow on: September 16, 2014, 07:50:36 AM
If you had back fire up through the carb ,unless it has blowout protection ,power valves will need replaced.
12  Camaro Research Group Discussion / General Discussion / Re: My New '68 Camaro Z/28 Butternut Yellow on: September 15, 2014, 12:14:41 PM
Good article, and covers what I was taught to be " cold setting " the timing. I think sometimes it may be hard for people to wrap their brain around rotor placement/ #1 firing position. Danny will get it ,just takes a few times to also develop the "feel". Also check your plugs again as you could have easily fouled one. Then your chasing your tail so to speak.
13  Camaro Research Group Discussion / Decoding/Numbers / Re: Fuel pumps on: September 14, 2014, 02:38:47 PM
That's a good question, I approached it last year with no luck. Was looking for the GPM on a stock/replacement pump.
14  Camaro Research Group Discussion / Maintenance / Re: sway bar bushing replacement on: September 13, 2014, 07:17:34 PM
from your pic it looks like the wrong diameter. Be it a 69 Z or a Focus ,suppose to be snug. Your not doing anything wrong ,looks like wrong part. Get an ID measurement of the bushing (old one) and OD of your sway bar.
15  Camaro Research Group Discussion / General Discussion / Re: My New '68 Camaro Z/28 Butternut Yellow on: September 13, 2014, 08:41:30 AM
Gary's correct on fuel/octane. My father rebuilt the 302 in 1990 and had hardened valve seats installed when they went through the heads. Did some duty in the Anglia when it was in street form and ran great on Premium pump. Problem is with these pre cat engines is they need lead for lubrication. (heads) I know there are additives on the market ,someone can chime in for recommendations. My 12.5:1 engine needed higher octane to prevent pre ignition (pinging), and we run 116 in the 14.75:1 motor. 1/2 gallon a pass ! Congrats on your progress ,know you have that warm feeling of pride. If you ever rebuild an engine ,follow those same  procedures for initial start up. Upon break in, you do not want continued roll over....problems. Stop and re-evaluate.

I do love the smell of race fuel ,but it comes with a high price tag !

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