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Messages - X33RS

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1

Oddly, I haven't seen much in the way of any Camaro celebrations when the 50th rolled around for 67, but when Mustangs had their 50th celebrations 2 years prior, they had mustang gatherings all over the desert South West here.   So I'm not expecting much out here for the 69 Camaro celebrations either.


Yeah there wasnt anything special for the 67 for the 50th. The local Camaro club im a member of tried getting with a few other regionals to put together a big regional meet but met a lot of no's. I went to Sturgis Camaro rally last year as well and they really didnt do anything for the 67, but then not many first gens at the show.

  I never could understand why.  Not like Camaros aren't popular.   2 years prior mustang clubs everywhere were having huge 50th events that seemed to be everywhere throughout the year.  I had the SCJ at a couple.  Even a big event with a Rt66 cruise that ended in Vegas where they had a 3 day weekend event with show, swap  and racing etc....  I guess the mustang guys got it going on, lol.   I was looking forward to the 50th for the Camaro to roll around.....never happened.   About the closest thing we have this year is Goodguys next month where they have a Camaro corral parking area, along with Tri-5's, Trucks, air cooled VW's, and several others with specialty parking, so it's not like Camaros are being celebrated.  Oh well.

2
Maintenance / Re: 302 Valve adjustment
« on: October 31, 2018, 02:53:40 PM »
Thanks everyone for the help. I readjusted the valves over the weekend and it now runs and sounds great. For some reason number 1 and number 4 valves were a little loose. I originally used the EOIC method when the engine was on the engine stand. This time I used the 90 degree method which I think is the best method to make sure the cam is on its base circle.



Just as some of us were trying to explain, that was just the product of a few lobes not being exactly on the base circle and why the EOIC method isn't always accurate.   With the lobe designs of these cams, new and old, it's just best to make sure you're on base circle for lash settings.  Glad to hear it's running fine.  Great looking Z.

3
Decemeber?  In Illinois?   Won't catch my butt any further East than the Arizona boarder this time of year, lol.

Oddly, I haven't seen much in the way of any Camaro celebrations when the 50th rolled around for 67, but when Mustangs had their 50th celebrations 2 years prior, they had mustang gatherings all over the desert South West here.   So I'm not expecting much out here for the 69 Camaro celebrations either.

What would be cool is to have a gathering at the old Bee Line track here North of Scottsdale where these cars first attended the Winter Nationals and made their debut in January 69.  Not much left of that track today unfortunately, but sure is a heck of a lot warmer here this time of year  ;D.

4
Maintenance / Re: 302 Valve adjustment
« on: October 21, 2018, 11:56:18 PM »
I prefer the one at a time method, by rotating each valve to peak lift, then one full crank revolution so I can be certain the camshaft is exactly on the base circle.  Takes longer, but is dead nuts accurate.   The method on this site will also work very similar if you don't want to rotate the engine as much.

The reason for this is to make absolutely sure the cam is on the base circle.   With so many lobe profiles these days and differences in lash ramps etc... it's just good practice.

As far as the rockers, I don't see where that would make much difference in your lash adjustment.  However the stock rockers are in fact notorious for varied ratios.  The aftermarket stuff like Comp and Harland tend to be a bit over their advertised ratio.  Depending on the spring pressure you run you may find the "running ratio" changes due to flex at the rocker and the pushrod.  I always check with a dial indicator.   I'd bet you'll find those comp roller tips to be in the 1.55 range.

I'd simply go back through your lash adjustments and recheck, you may find you simply have a couple you didn't lash the same.  Roller tip rockers are tricky.  I make a conscious effort to pull the feeler gauge sideways because the roller can give you a false sense pulling perpendicular.

5
General Discussion / Re: Original dealer info for 1st gens is available
« on: October 21, 2018, 11:45:18 PM »
Baa, it's not that far Austin, maybe 25 miles, lol.  I drive it in less than 30 minutes if the traffic isn't bad.

6
General Discussion / Re: Original dealer info for 1st gens is available
« on: October 21, 2018, 02:50:15 PM »
Interesting.  My ram air Formula came from Bill Lang Pontiac/Cadillac in Vallejo just north of Oakland.  Bill Lang is just an abandoned dirt lot now, not the best part of town these days.

7
Maintenance / Re: Tuning a 4053 with AFR
« on: October 19, 2018, 02:31:31 PM »
91 is all we have here as well.  Not the best, but my DZ with 11:1 is running fantastic on it with the tune I mentioned above.  Been daily driving it for about 2 years now.  I'm running mine at 36 degrees of total timing (no vacuum advance) and all in by 2600 rpm.  I'm adding an additional 10 degrees of vacuum advance at part/light throttle conditions.  The factory cam has so much overlap it bleeds off a ton of low speed cylinder pressure making the compression ratio manageable, as long as the cam isn't installed really advanced. 

     This tune has gotten me a pinch over 17 mpg on the last 300 mile cruise on Rt 66, holding a steady 65 mph with 3.55's out back.  It routinely gets 14 mpg driving around town in traffic on 25-45 mph streets.

If you feel you're hearing some detonation, pull the plugs and look closely (I use magnifying glass) at the porcelain for black speckles (like pepper)   May take a fresh set of plugs and a couple of WOT pulls to see anything, if there is detonation.

I have my timing coming in fairly quickly with no issues.  If yours has a similar curve, and you feel like it's necessary to pull timing or you think you may see something on the plugs, a simple change would be to just slow the curve down a bit with a stiffer spring, rather than pull initial out of it which would affect idle quality, vacuum, and your overall total timing.   Just some thoughts.

8
Restoration / Re: best gas tank sending unit
« on: October 11, 2018, 03:25:26 PM »
The 5/16 sending unit with no fuel return is for 2 barrel applications I believe, because 2 barrel fuel pumps don't have a return either.

The 69 Z/28 never used a return either, and that sending unit will be 3/8 feed.  Same deal with L-78's, no return on those and is the same sending unit the Z/28 uses.

Return style sending units with a 3/8 feed line were used on Q-jet applications, like the L48 350's and L34 396/350hp engines.

The one I linked to for Bryon is the correct unit for a 69 Z/28 and L78 application.

9
Restoration / Re: best gas tank sending unit
« on: October 10, 2018, 10:08:12 PM »
You're welcome.

Looking at the picture, it's identical to the one I put in the Z.  Same color sock, same color float.  I wouldn't be surprised if it's the same supplier, whom ever that might be.

He advertises free shipping too.

Let me know how that works out.

10
Restoration / Re: best gas tank sending unit
« on: October 10, 2018, 08:39:15 PM »
Here ya go Bryon.  I was fishing around, not many places even mention stainless sending units anymore and then this ebay store popped up listing stainless sending units for various applications.  AM-Autoparts in Kansas??  Sure enough they have the correct unit for a 69 Z/28 with a single feed line.  I've never heard of this place before but, the price is less than what I paid 3 years ago from Bob's.

Might be worth a shot???

https://www.ebay.com/itm/3-8-Gas-Fuel-Tank-Sending-Unit-Stainless-Steel-for-Chevy-Camaro-Nova-Ventura/131041309451?fits=Year%3A1969%7CModel%3ACamaro&hash=item1e82abb30b:g:q78AAOSwCPRaxIQR:rk:2:pf:0   

11
Restoration / Re: best gas tank sending unit
« on: October 10, 2018, 12:45:55 PM »
I put a stainless one in our Z.   At the time I used Bob's Impala (carries Camaro parts too)  because he advertised stainless steel sending units.  Albeit more expensive, he's also local to me in Mesa AZ.  I bought one for our nomad at that time as well.   However I don't see that he advertises the stainless sending units anymore. I don't know if that has become a supplier issue or not.  Might have to do a more extensive search if that interests you.  I liked the stainless idea in hopes of avoiding corrosion down the road.

12
Garage Talk / Re: Anyone use a go-cam?
« on: October 10, 2018, 12:19:19 PM »
Just drove around him.  He was a mid 12 second car.  The goat has gone 10.70's at 128 mph in full street trim.  On this pass, we were making easy shake down passes feeling the car out.  Came out very easy and didn't go full throttle until 2nd gear and then ran it out the back door.  Also couldn't seem to stay off the rev limiter as you can hear in the video, lol.  I can't see that darn hood tach for the life of me.

13
Garage Talk / Re: Anyone use a go-cam?
« on: October 10, 2018, 02:47:47 AM »
Okay, yeah I think we're talking about the same thing, just has different names.

We bought ours at Costco.  About $350.  But we've used it in many different applications, off roading, cruises in the cars, drag racing.  Been a pretty handy little thing.  Fits in the palm of your hand, not very big.  I'm not that up on technology but this was pretty easy to figure out.
Here are some short videos we shot with it driving different cars.

https://youtu.be/7a3lMwoM-7c

https://youtu.be/fpuGGnJFs4Q

https://youtu.be/YYoXURd5rM0

https://youtu.be/lCmw-yDq73s

14
Garage Talk / Re: Anyone use a go-cam?
« on: October 09, 2018, 10:07:41 PM »
By go-cam, do you mean a go-pro?

We use the go pro quite a bit for cruising, dragstrip etc... 

15
General Discussion / Re: Chrome shifter ball
« on: October 09, 2018, 10:05:23 PM »
I'm pretty certain that in 69, there was no jamb nut used on the chrome shifter ball.   I believe William told me that back when we were trying to decipher my car and I thought the jamb nut was missing.

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