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103312 Posts in 12155 Topics by 4690 Members
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376  Camaro Research Group Discussion / General Discussion / Re: A new Camaro we can all relate to on: June 04, 2009, 01:32:22 AM
Here's where one of them went. It is headed to my garage tomorrow afternoon.   Cool

377  Camaro Research Group Discussion / General Discussion / Re: GM Heritage Center Info... on: June 03, 2009, 12:54:26 PM
George Zapora of GM Canada can provide you with a GM Camaro model/year info packet even if your car is not in the Canadian Database. It will not be specific to your particular car details but it is informative. I just got mine from him recently. I think it was less than $50. He charged me a small fee for research as my car did not come up in the GM Canada Database. He sends out the Camaro year model GM info packet either way.  Smiley

378  Camaro Research Group Discussion / General Discussion / Re: Horsepower ratings clash with stock carb on: May 30, 2009, 02:43:33 AM
Factory mistake or not, I might be inclined to get a new sticker if I was in your shoes.

379  Camaro Research Group Discussion / Maintenance / Re: chirping birds.... on: May 28, 2009, 12:51:36 PM
Once this happened to me - The headliner ear muffs (side pieces - cardboard) have steel retaining clips that can squeek on small bumps. I had to pull the passenger side headliner side piece off to find it.  Angry

380  Camaro Research Group Discussion / General Discussion / Re: Blog compares 1st gens to the new 5th gen and is somewhat unkind... on: May 15, 2009, 02:34:02 PM
None of you seem to remember the giant motor mount recall on late 60's cars including our sacred first gen Camaros. - The car would take off at full speed WOT and the only way to stop it was to turn the ignitiion off or pop it out of gear and let the engine rev to the moon.  Shocked

Recalls are not a new thing here.

BTW - the 2010 Camaro also has had other problems. The computers needed to be reflashed and the front brake calipers on SS models have had lead weights added to the early units to reduce noise problems. GM has been fixing them before they even ship them out. No big deal guys. They just want them to be the best cars possible before they give them to the customers.


381  Camaro Research Group Discussion / General Discussion / Re: Horsepower ratings clash with stock carb on: May 14, 2009, 05:53:00 PM
Get the numbers off the top of the engine block directly in front of the passenger side cylinder head. The engine suffix code was stamped there. The date code and suffix will shed some light on what you have going on in there.

The 4-barrell LM-1 was discontinued around January 69 and the 2 barrell 250 HP engine was used after that. Maybe you got caught up in that?

382  Camaro Research Group Discussion / General Discussion / Re: Blog compares 1st gens to the new 5th gen and is somewhat unkind... on: May 14, 2009, 12:24:09 PM
We all love the first gen and many of us have been or are now owners. What he says has a ring of truth to it even if he has taken some editorial liberties with the facts. If you have never seen a 2010 Camaro in person, you should. Objectively, It is nothing at all like a first gen other than some styling cues. They look like cousins but they are more like grandpa and grandson if you ask me.  Wink  There is 40 years worth of technology and innovation going up against a larger than life historical legend. They each deserve respect but different reasons.

My 2010 Camaro has been built and I am waiting for it to be delivered in a few weeks.  Smiley


383  Camaro Research Group Discussion / Restoration / Re: 69 camaro BB 4 speed shifter mount on: May 10, 2009, 03:53:19 PM
The original '69 Camaro/Firebird aftermarket Hurst install kit reused the original GM mounting plate per the instructions. It is one of the few cars out there where Hurst did not use the common universal plate they provided with all the other install kits.

If you buy a current production Hurst aftermarket install kit for this application, it will have a 2-piece Hurst provided mounting plate setup from the ones I have seen. It is a one year only Camaro/Firebird only situation. You have to use these special pieces of the shifter will be in the wrong place and won't fit the console.

384  Camaro Research Group Discussion / Mild Modifications / Re: Flywheel on: April 29, 2009, 09:42:15 AM
You can't mix and match the factory stuff much. 621 bellhousings will require the starter for the large flywheel AND the larger flywheel. The flywheel can be drilled with both clutch patterns and either large or small clutch will work but the smaller flywheel will not work inside a 621. The flywheel does physicaly fit inside the bellhousing but the starter nose cone that is required to drive the smaller flywheel will not bolt up.

385  Camaro Research Group Discussion / General Discussion / Re: Which Camaro Numbers Book Is Better? on: April 27, 2009, 08:10:40 PM
Hooper's books are older and have many improperly restored photos in them.

Colvin's books are very good.  Smiley  Jerry MacNiesh puts out some very good books so have a look at his too.

386  Camaro Research Group Discussion / General Discussion / Re: New cam in the Z... video on: April 11, 2009, 04:32:22 PM
What were you looking to do when you changed from the 30-30? The lobe centers seem to be very tight on that new grind you put in there.

I realy like the Crane I put in. Idles about the same but starts working much sooner in the RPM's and screams up to the 7000 Plus redline. I needed more grunt and this one did the trick. 238/248 @ .050" and .480"/.500", 114 LSA on the card. The specs say it is supposed to float at 7400 RPM but I have not gone that high with it.  Grin 

I don't kow if you can get one like it anymore. Crane seems to be in trouble right now.  Sad

387  Camaro Research Group Discussion / Restoration / Re: Smog pump rebuild on 1969 L35 on: April 09, 2009, 07:49:39 AM
Rebuilding must be done by a pro.

De-vaning a pump can be done by anyone with a socket wrench to pull the back off and a screwdriver to break the vanes. They are a carbon-like material and snap rather easily. The pump will be trashed but it will not pump air anymore.

I don't trash the pump vanes.  I just put holes in the underside of the rubber hoses that go to the check valves (screwed on to the trees). Nobody sees the holes and rubber hoses are very cheap & easy to replace, unlike the pump vanes. I remove the extension tubes from inside the manifolds and insert the screws (points up) to block the tree openings and the whole thing looks stock but is non-functional. Just another way to do it. FWIW. Smiley

388  Camaro Research Group Discussion / General Discussion / Re: Adjusting rocker clearance on 30-30 cam. on: April 08, 2009, 05:31:02 AM

my 302 idled with 11 inches of vaccuum with the 30-30 set at .030

when i put it down to .026 i lost 4 or 5 inches HG, exacltly in the ballpark that Glenn just said......subsequently, the Powervalve had to be changed, and I'm sure other things would need to be adjusted for optimum performance... i.e. jetting, timing

this effectively makes that big arse cam even bigger... especially in a no torque 302.

now... on top of that... a 64 or 65 FI vette (which also used the same cam) will not idle properly on that low of vaccuum... I tried it on that car as well...

seems like .004 couldn't possibly make a difference, in the lash setting... but if it makes enough of a difference to kill 5 inches of Vaccuum???



.004" tighter lash added 12 degrees of set-to-seat duration with your 1.52 rockers. It's not the lift that gets you, it's the duration.

With the stock stamped rockers (lower ratio), you should not see such a huge drop in vacuum when lashing at .026".

389  Camaro Research Group Discussion / General Discussion / Re: Adjusting rocker clearance on 30-30 cam. on: April 06, 2009, 08:08:26 AM
I know we will wait for John to post but I thought I would add a little bit here - The clearance ramps we know are there to cushion the valve train when the lash is taken up. The rams on this grind are .020" tall. I have measured them myself with a dial indicator and a degree wheel. You want the lash to taken up very closely to the top of the clearance ramp but not over the ramp at all. If you have a true 1.5 (or 1.52) ratio rocker arm - and you know it is 1.5, you still want to be close to the top of the clearance ramp but not exceed it. The problem with setting the lash anywhere tighter than the top of the ramp is that the LONG ramps on this grind will cause even a slight decrease in the lash setting to INCREASE the duration. Extra duration on this cam is not a great thing especialy on the intake side. Other aftermarket cam grinds have relatively steeper clearance ramps so a small decreases in lash will not have as much impact on increasing the duration. This grind is far different than a typical aftermarket grind when it comes to the change in duration per .001" change in lash setting. This grind will add 3 degrees of crank duration for each .001" tighter lash spec. Tighter is safer for the valvetrain but the increse in duration is often not desired.

P.S. - I ran the Comp 1.52's and set them at .030" when I still had the 30-30 cam. I run a different grind now. Cheesy

390  Camaro Research Group Discussion / General Discussion / Re: New Valve Springs for '69 302...? on: March 25, 2009, 05:45:51 AM
I put a set of those bee hive springs in my 302 and so far so good. The retainers are smaller so they weigh close to what a titanium retainer would weigh. PAC is the supplier I used for the springs. The retainers and locks came from Comp. It will run well over 7200 RPM without any issues and that is about where I chicken out. It would probably go higher. Crane F-278-2 cam runs very well in my otherwise close to stock 302.   Cheesy

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