Welcome to Club Hot Rod!  The premier site for everything to do with Hot Rod, Customs, Low Riders, Rat Rods, and more. 

  •  » Members from all over the US and the world!
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and hundreds of thousands of posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

 
Like Tree190Likes

Thread: 78 Trans Am getting some love
          
   
   

Reply To Thread
Page 9 of 9 FirstFirst 1 2 3 4 5 6 7 8 9
Results 121 to 132 of 132
  1. #121
    36 sedan's Avatar
    36 sedan is offline CHR Member Visit my Photo Gallery
    Join Date
    Apr 2012
    Location
    american canyon
    Car Year, Make, Model: 36 Ford Sedan, 23 T Bucket
    Posts
    1,622

    Bump the secondaries up one and it should pull better at higher rpm (that's where the secondaries work).

    Is the 13-14 at just off idle (low speed cruise) and the 15-16 at high cruise? Where is the accelerator pump set?

  2. #122
    53 Chevy5's Avatar
    53 Chevy5 is offline CHR Member Visit my Photo Gallery
    Join Date
    Jan 2005
    Location
    Doon, Ia
    Car Year, Make, Model: 53 Chevy 3100
    Posts
    2,325

    The 13-14 is at cruising speed and it will climb going up a slight hill or just giving it a little gas. It comes right back down again when you give it a little more gas. I don't notice anything except for the gauge climbing.Cruise rpms are 2500-2700. I had the pump on the slow hole and I have it back in the center one now, is that used during cruise? I got a pic of a very white plug. It was just starting to brown a bit at the tip, can't see it well in the pics.
    Attached Images
    Last edited by 53 Chevy5; 07-08-2020 at 09:15 PM.
    Seth

    God cannot give us a happiness and peace apart from Himself, because it is not there. There is no such thing. C.S.Lewis

  3. #123
    36 sedan's Avatar
    36 sedan is offline CHR Member Visit my Photo Gallery
    Join Date
    Apr 2012
    Location
    american canyon
    Car Year, Make, Model: 36 Ford Sedan, 23 T Bucket
    Posts
    1,622

    Quote Originally Posted by 53 Chevy5 View Post
    The 13-14 is at cruising speed and it will climb going up a slight hill or just giving it a little gas. I don't notice anything except for the gauge climbing.Cruise rpms are 2500-2700. I had the pump on the slow hole and I have it back in the center one now, is that used during cruise?
    Accelerator pump is not active at steady cruise, but should come in as you give it gas. Moving it up a notch should stop the lean out as you give it a little gas, other wise cruise it great.

    Quote Originally Posted by 53 Chevy5 View Post
    I got a pic of a very white plug. It was just starting to brown a bit at the tip, can't see it well in the pics.
    Plug looks a little lean at idle (I like to see a full ring of color around the face), give it 1/8 turn more open on the idle mixture screws. Plug looks too hot, needs a colder plug.

    What is your total timing set at?
    Attached Images
    53 Chevy5 and 40FordDeluxe like this.

  4. #124
    53 Chevy5's Avatar
    53 Chevy5 is offline CHR Member Visit my Photo Gallery
    Join Date
    Jan 2005
    Location
    Doon, Ia
    Car Year, Make, Model: 53 Chevy 3100
    Posts
    2,325

    I have my total timing set at 34°
    36 sedan likes this.
    Seth

    God cannot give us a happiness and peace apart from Himself, because it is not there. There is no such thing. C.S.Lewis

  5. #125
    53 Chevy5's Avatar
    53 Chevy5 is offline CHR Member Visit my Photo Gallery
    Join Date
    Jan 2005
    Location
    Doon, Ia
    Car Year, Make, Model: 53 Chevy 3100
    Posts
    2,325

    I think we got it running good for now. I went back to the 58/44 rods and that seem to help with the leaning out going up a hill, not perfect yet but better. I bumped the timing up to 36 total, and it's running it about 13.5 Cruise and the step up is 12.5 ish. It's hard to tell I swear it changes every night. I did replace my fuel pump because last time I drained the carburetor I had to crank forever to get it to fill up again. I checked and sure enough the diaphragm was leaking, but it was holding 6 psi . Maybe it was getting worse as it warmed up down the road and that possibly accounted for some changes to. The only thing I might change is the secondary orifice to a size up, but I'm not sure if I'm going to do that right away or just drive it. Anyhow thanks for everybody's help on this thing, especially 36 Sedan! , it's running better than it ever has since I've owned it. I'll pull the plugs again after he is driven more and look at the burn pattern too. If there's one thing I've learned, I now can laugh inside now when somebody says yeah I threw on a 750 and now it runs awesome! It maybe does, but without tuning it you're just throwing darts with your eyes closed.
    Last edited by 53 Chevy5; 07-09-2020 at 07:20 PM.

  6. #126
    34_40's Avatar
    34_40 is offline CHR Member Visit my Photo Gallery
    Join Date
    Sep 2007
    Location
    New Bedford
    Car Year, Make, Model: 34 Ford 3W Coupe Replica
    Posts
    13,481

    I've stayed out of this 'cause to many cooks... you know?
    But, now is when you watch and record the output from your A/F gauge. wait for a minimum of 3 readings on different days to decide on a change.

    If you make a change and the air is different the next day, you could actually decide to un-do changes that were for the better!
    This is the major drawback to a carb, it's dependent on so many things that change daily / hourly etc. Now that your in good shape, watch / wait and see which way the readings are working before you decide on change.

    FWIW, My point oh 2, etc etc etc.. yada yada yada.. imho... if 36 tells you different, do what he says! nod nod wink wink..

  7. #127
    36 sedan's Avatar
    36 sedan is offline CHR Member Visit my Photo Gallery
    Join Date
    Apr 2012
    Location
    american canyon
    Car Year, Make, Model: 36 Ford Sedan, 23 T Bucket
    Posts
    1,622

    34-40 as always you give good advice.

    Once the carb is dialed that is exactly how to use the gauge. Right now we are at that point once (and it’s abig once) the plug’s reflect the AFR readings. At present his plugs read too hot, needed to be cooled a step or two, then we’ll start seeing a true representation of what’s happening inside the cylinders.

    We’ve come a long way from where it was to where it needs to be, the finish line is in sight.

    And the big moral to this story is “All carburetors Benefit from being tuned.”
    53 Chevy5, cffisher, 34_40 and 2 others like this.

  8. #128
    53 Chevy5's Avatar
    53 Chevy5 is offline CHR Member Visit my Photo Gallery
    Join Date
    Jan 2005
    Location
    Doon, Ia
    Car Year, Make, Model: 53 Chevy 3100
    Posts
    2,325

    Would tightening the gap on the plugs cool them down? It's a brand new set of Autolight plugs, and I gapped them them to 60 per what the sticker said on the radiator support, but now I read that and they knocked it down to 45 for specs. I thought 60 seemed kind of wide. The reason why my timing is at 36 now is because I adjusted the vacuum advance up 2° with the distributor forgetting that I had an adjustable vacuum advance lol. I will bring that back down to 34 to help cool things off as well. It's been about 90° with 70% humidity here lately, I'm curious to what the AFR readings will be when the outside temp and humidity go down.
    Seth

    God cannot give us a happiness and peace apart from Himself, because it is not there. There is no such thing. C.S.Lewis

  9. #129
    36 sedan's Avatar
    36 sedan is offline CHR Member Visit my Photo Gallery
    Join Date
    Apr 2012
    Location
    american canyon
    Car Year, Make, Model: 36 Ford Sedan, 23 T Bucket
    Posts
    1,622

    Tuning a motor usually requires several sets of plugs, the cost of plugs is relatively cheap compared to the cost of hiring a tuner. I'm proud of you, you have gained the knowledge and confidence to do it yourself! My only charge is that you pass it on to others so they too can learn and have fun!

    The gap won't change the heat range of the plug, that's determined by the porcelain inside the plug and how fast it transfers the heat to the plug base, usually shorter porcelain is a cooler plug. The strap and threads on your plug show too much heat, performance will benefit from a cooler plug.

    Set plug gap at .035, usually high performance motors like a tighter gap (even with HEI). 36° total timing is ok if the motor likes it (some head designs don't), 2° can make a difference as long as it doesn't ping.

    Ignore all the tuning specs on the radiator, those are factory recommendations and you are way beyond that now. Keep a log of all changes and their results for future references.

    AND most of all, ENJOY!!
    53 Chevy5, johnboy, 34_40 and 2 others like this.

  10. #130
    40FordDeluxe's Avatar
    40FordDeluxe is offline CHR Member Visit my Photo Gallery
    Join Date
    Apr 2011
    Location
    Prairie City
    Car Year, Make, Model: 40 Ford Deluxe, 68 Corvette, 72&76 K30
    Posts
    6,689
    Blog Entries
    1

    It's very cool to see the bird out from it's death sentence, I mean staycation. That was a long read but very good that you were able to get it tuned in with good help from members here. Reading this thread made me question my choices on my 40. But hopefully 2020 is the year to get immobile rides mobile?

    .
    53 Chevy5, 36 sedan and Driver50x like this.
    Ryan
    1940 Ford Deluxe Tudor 354 Hemi 46RH Electric Blue w/multi-color flames, Ford 9" Residing in multiple pieces
    1968 Corvette Coupe 5.9 Cummins Drag Car 11.43@130mph No stall leaving the line with 1250 rpm's and poor 2.2 60'
    1972 Chevy K30 Longhorn P-pumped 24v Compound Turbos 47RH Just another money pit
    1971 Camaro RS 5.3 BTR Stage 3 cam, SuperT10
    Tire Sizes

  11. #131
    53 Chevy5's Avatar
    53 Chevy5 is offline CHR Member Visit my Photo Gallery
    Join Date
    Jan 2005
    Location
    Doon, Ia
    Car Year, Make, Model: 53 Chevy 3100
    Posts
    2,325

    Quote Originally Posted by 40FordDeluxe View Post
    It's very cool to see the bird out from it's death sentence, I mean staycation. That was a long read but very good that you were able to get it tuned in with good help from members here. Reading this thread made me question my choices on my 40. But hopefully 2020 is the year to get immobile rides mobile?

    .
    Death sentence in the garage? That poor car has seen more 3 digit speeds, smoke rolling, and getting beaten like a red head step child that it's seen in years, It's begging to get back in the garage In all reality my end goal for the car is a LSX with a 6 speed swap, I just can't get it out of my head I'm trying tuning it but once again it got stuck on the side burner till Rita gets its tow package and a clean bill of health for the Black Hills trip ( not to mention all the other to-do lists around the place )
    Last edited by 53 Chevy5; 07-20-2020 at 07:21 PM.
    Mike P, 40FordDeluxe and 36 sedan like this.
    Seth

    God cannot give us a happiness and peace apart from Himself, because it is not there. There is no such thing. C.S.Lewis

  12. #132
    40FordDeluxe's Avatar
    40FordDeluxe is offline CHR Member Visit my Photo Gallery
    Join Date
    Apr 2011
    Location
    Prairie City
    Car Year, Make, Model: 40 Ford Deluxe, 68 Corvette, 72&76 K30
    Posts
    6,689
    Blog Entries
    1

    Just my point oh two, but if you do go the LS route, just get a holley terminator setup from the get go and party time.
    Ryan
    1940 Ford Deluxe Tudor 354 Hemi 46RH Electric Blue w/multi-color flames, Ford 9" Residing in multiple pieces
    1968 Corvette Coupe 5.9 Cummins Drag Car 11.43@130mph No stall leaving the line with 1250 rpm's and poor 2.2 60'
    1972 Chevy K30 Longhorn P-pumped 24v Compound Turbos 47RH Just another money pit
    1971 Camaro RS 5.3 BTR Stage 3 cam, SuperT10
    Tire Sizes

Reply To Thread
Page 9 of 9 FirstFirst 1 2 3 4 5 6 7 8 9

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Links monetized by VigLink