Search results for query: t slot

Curious, way did you take the timing "all the way back to 10 initial" ? That's a huge jump.

...initial timing. That will lean up the idle a bunch. What distributor do you have? I do both carbs at the same time. So get your bleeds and T slot restrictors done on both carbs at the same time. Any changes you make you do the same to th carbs. Make sure you don’t have one carb “leading”...

Hyup just weigh a pair of 15x10steelies compared to a pair of aluminum slotwheels . Then run the steelies over speed bumps under power, compared to same speedbumps with the slots. And that, friend, will make believer out of you. I have recorded that one of my aluminum slots weighs 14 pounds. I...

...be, you’ll have to fix the rest of it...it will likely have tip in issues and at the end of transition it will go rich, so that’s where the T slot restricters come in the most. The smaller the MAB the later the booster gets going, and the fatter the fuel curve will be at RPM. The larger the...

...damn stumble. Current setup: 24 initial, 34 total with can unplugged. Idle rpm 800 with 10-10.5” vacuum. 37 primary shooter, 31 secondary. T slot is unmeasured after doing all this fiddling but pretty sure it’s in the ballpark because the idle mix screws are very responsive and with that...

Its most likely you are too lean at idle and transfer so you have to advance the timing to improve the fire events at idle to create enough vacuum. What do you have for IFR's and IAB's? You can partially block the IAB's with your fingers and see how it responds to a richer mixture at idle and on...

...mix. Since I almost never do a heated intake of any kind, I have been noticing some tuning issues. Like tip in problems that take some odd T slot/bleed sizing to get cleaned up. Especially on the tunnel ram stuff. It’s annoying to no end on a street/strip car to deal with tip in issues...

I don't know if it needs richer t-slots or soon main circuit start up. BUT. A big change to the HSAB to change get the mains started earlier/stronger will affect the top of the curve. Then how does that get fixed? IF you want to experiment with idle circuit, a smaller IAB should make the idle...

Sounds like you're ready to learn. I see 4 corner idle. With that cam, the engine is probably making 1/2 decent vacuum at idle. So plan on using very little idle mix. In fact if you shut the secondary idle mix screws all the way, it might might be a good starting piont. Then crack them as...

I was at work today and didn't have time or the want to type the reply I wanted to on my phone, so here goes. Your right, I didn't build the Dart, Dodge did. Same thing with the Strange S-60. What I did do, rebuilt the front end, installed the Strange brakes on the front, Wilwood's on the...

I love this reply SO MUCH!! This is the kind of crap that runs though my head all the time, LOL! I used to get really annoyed when people would see my car and say "where did you buy that?". Then I would try to explain that I built it from a $100 piece of crap (long story) to what it is...

This from the Urich and Fisher book. Link in this post: Carb knowledge help needed On the primary side it will be easier to determine if initial t-slot - throttle relationship is correct. The conditions where too much or too little t-slot is exposed are circled. I crossed off the idling...

BTW If you are attempting to tune to a vacuum number, with the 7177 cam, you are in a world of hurt. Because it will lead to a massive amount of idle-timing. I rarely use a vacuum gauge to even observe the idle-vacuum, of an engine with a performance cam. At 930ft elevation, my 367cuber will...

I ahve only a few things to add, but they may be helpful. On the idle restrictor, the difference between .031 and .034 is pretty big. That's a starting point. It's perfectly OK to adjust slightly. Often they are larger. It depends on how the carb details. I'm assuming this is not set up...

Lower IFR papers ? That would be NACA 49 http://naca.central.cranfield.ac.uk/reports/1920/naca-report-49.pdf Most relevant conclusion Mark quotes at RFS is.. "Submerged metering passages are free from instability and irregularity of discharge when the head is very small". I'm going to cut...

OK, you are setting out a plan... good. I just want him to be aware of that secondary setting... it is ususally important when you get down to the last steps of fine tuning for smooth street/cruise operation. And it ought to be checked now just to be sure it is at the nomimal setting (square...

That's why most of the time I work in Park and then shift it into D to see how it went... Always some exceptions... If you have the carb off, measure the opening per turn, and using drill bit or gage you can also get a sense of the t-slot widths and lengths. On an older Holley carb, the widths...

That's exactly how I viewed it (as a general indication) so no specific measuring done. I know it's more than .020 and not nearly .040 just by looking at it though.:D I did raise the idle and re trim the mix screws leaner as a test. It made a slight difference, but mostly just raised the idle RPM.

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Machining issue in transfer slot. With this flaw I will not be able to square up the T-slot. Opinions please. Brand new quick fuel carb.