CRG Discussion Forum
Welcome, Guest. Please login or register.
Did you miss your activation email?
December 20, 2014, 09:25:42 AM

Login with username, password and session length
Search:     Advanced search
Welcome to the CRG Discussion Forum!
Forum registration problems: Make sure you enter your email correctly and you check your spam box first. *Then* email KurtS2@gmail for help.
107554 Posts in 12507 Topics by 4812 Members
Latest Member: oldbop88
* Home Help Search Login Register
  Show Posts
Pages: 1 2 [3] 4 5 ... 52
31  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.
32  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.
33  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.
34  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.
35  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.
36  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.
37  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.
38  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.
39  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 !

40  Camaro Research Group Discussion / General Discussion / 9/11 on: September 11, 2014, 07:52:38 AM
Asking everyone to take a moment today and give a prayer to the Fire fighters who gave their lives trying to help those who were unable to help themselves. Also remember the other first responders who are suffering from secondary effects. And the families of those innocent victims.
41  Camaro Research Group Discussion / General Discussion / Re: Well My Camaro online Compadres, Time for a fight of my Life! on: September 10, 2014, 07:34:09 PM
He's buttoning the engine up right now.
42  Camaro Research Group Discussion / General Discussion / Re: My New '68 Camaro Z/28 Butternut Yellow on: September 10, 2014, 06:47:57 PM
Ha, wonderful !!
43  Camaro Research Group Discussion / General Discussion / Re: Well My Camaro online Compadres, Time for a fight of my Life! on: September 10, 2014, 02:00:56 PM
 Cheesy
44  Camaro Research Group Discussion / General Discussion / Re: 69 Z/28 X77 garage/barn find on: September 09, 2014, 03:49:50 PM
 Cheesy
45  Camaro Research Group Discussion / General Discussion / Re: First Camaro delivered to Yenko going to auction on: September 09, 2014, 02:39:10 PM
Ahh ,just read it. Love to see the progress.
Pages: 1 2 [3] 4 5 ... 52
Powered by MySQL Powered by PHP Powered by SMF 1.1.20 | SMF © 2013, Simple Machines Valid XHTML 1.0! Valid CSS!
Page created in 0.083 seconds with 18 queries.