How to Set Fast Idle Speed

Рет қаралды 9,257

Күн бұрын

Пікірлер: 51

@3Repete 27 күн бұрын

Hi, I live In a colder climate here In southern NH, and I love a correctly set electric choke. Gives me a little joy to start my 71 Chevy on the first pulse. Couple things on my car. It has a crate 350 that I believe is just stock but .030 over. The paper work claims 330 HP, but I think that's optimistic. I also have an AVS2 mine is a 650, as yours appear to be. On a cold start I pump the gas pedal twice and on the 2nd pump I make sure to go all the way to the floor, hesitate a beat, and then release the gas pedal. This assures the linkage has enough time to close the choke and simultaneously swing the fast idle cam in below the fast idle adjusting screw. Also, If the engine revs too high you can kick the idle down partway when the choke isn't all the way open, try it. I will usually give the throttle a blip after 15 or 30 seconds if I don't want to spin the heck out of my cold engine. At that point I can usually get an idle above normal ,but not frantic fast. I'm older and remember my parents cars doing that in-between idle when it was super cold.

@karlbarfoot2846 3 ай бұрын

Thanks!

@MuscleCarSolutions 3 ай бұрын

@@karlbarfoot2846 thank you! Very much appreciated!

@DesertRatFabrication 3 ай бұрын

Good stuff Brian, I had to actually reset it on the new engine, even though it worked fine on the old engine, sure makes a world of difference in cold starts, have a great day buddy 😀😀

@MuscleCarSolutions 3 ай бұрын

@@DesertRatFabrication I remember those cool PNW mornings. Hope all is well in your world!

@johnc7431 3 ай бұрын

Another great video always enjoy watching your videos if you could in the future 750 Holly vacuum advance tuning tips

@MuscleCarSolutions 3 ай бұрын

It’s on my list of videos to consider. Unfortunately I don’t have anything in my garage that would use a 750, but I might be able to accommodate it. Thanks for the suggestion!

@loboxx337 25 күн бұрын

I Remember when I used to pull on the lever to set the choke manually of the 1956 Fairlane my dad owned.

@Moody.Trails 2 ай бұрын

Thanks for the video, I was looking for such a video, as online there is little info about the fast idle cam.

@MuscleCarSolutions 2 ай бұрын

@@Moody.Trails it’s not complicated but it can be when the choke activates the cam and it’s not understood to why.

@jeffdeavours1280 3 ай бұрын

Good video as always. Thank you for the very useful info.

@MuscleCarSolutions 3 ай бұрын

@@jeffdeavours1280 thanks! Glad it was useful.

@VinoRatRodbuilds 3 ай бұрын

Thanks for the demo. 👍

@MuscleCarSolutions 3 ай бұрын

@@VinoRatRodbuilds thanks buddy!

@SeanJoseph-s2s 3 ай бұрын

Good content as always...and thanks..🔧🔧👍

@MuscleCarSolutions 3 ай бұрын

@@SeanJoseph-s2s thanks!

@DrFreedom76 11 күн бұрын

So to clarify, just a light tap on the the accelerator should set the fast idle/choke? I have a 78 C10 350 with the Edlebrock 1406, the choke and fast idle works great and is set where I like it, but I can't get it to set from inside the cab. It seems like though whenever I take off the breather as soon as I touch it, it clicks right into place.

@3Repete 2 күн бұрын

Mine was like that too. I think my drop base air cleaner touched too much of the linkage to allow things to move. so I checked and since there was a little room over head I put a half inch Edelbrock spacer on it. And as to the light tap, no. Before you crank do a full throttle-to-the-floor press. My car likes 2 of them. The pedal to the floor pumps a shot of fuel and also sets the choke to a closed position. Good luck!

@dakota-joel7590 10 күн бұрын

Do you have a video on setting the electric choke? I keep having a problem where the fast idle linkage sticks and wont allow the cam to turn and drop to a normal idle.

@andrewforster4974 3 ай бұрын

It took me a few tries to get my choke set but up here in Canada in the middle of winter no car is happy with starting at -40f lol

@MuscleCarSolutions 3 ай бұрын

@@andrewforster4974 yeah I’m not sure anything starts well at -40f! 😂

@andrewforster4974 3 ай бұрын

Oh my f100 starts but it's not happy for first few minutes lol

@MuscleCarSolutions 3 ай бұрын

@@andrewforster4974 nothing can be that happy at that temp! Don’t know how you all do that day after day during those months.

@andrewforster4974 3 ай бұрын

The summer months make it all worth it for the suffering the winter causes us lol maybe I might make a video of the truck starting at that temp

@MuscleCarSolutions 3 ай бұрын

@@andrewforster4974 those temps will be there soon! Ready for that cold start video! 🥶

@PACBrian 3 ай бұрын

thanks man this helps

@MuscleCarSolutions 3 ай бұрын

@@PACBrian glad it was helpful!

@RandallSoong-pp7ih 3 ай бұрын

Awesome thank you!

@karlbarfoot2846 3 ай бұрын

On MY AVS2, I pump 3 times to the floor, and car immediately starts fine, but doesn't stay running. I find my self feathering the throttle to keep it running. Should I add more fast idle?

@MuscleCarSolutions 3 ай бұрын

@@karlbarfoot2846 verify that the choke is engaged.

@karlbarfoot2846 3 ай бұрын

@MuscleCarSolutions electric choke working properly, no engagement with fast idle screw. Followed your steps, now starts and high idles properly! Thanks for your videos, they've been invaluable!

@MuscleCarSolutions 3 ай бұрын

@@karlbarfoot2846 glad to hear that! 👍

@danielbadger2641 3 күн бұрын

Is one of your final steps after opening the choke to drop the idle, also to check the reverse/drive (if auto) idle?

@MuscleCarSolutions 3 күн бұрын

@@danielbadger2641 separate adjustment but linked. Yes once the choke/fast idle is set, verify idle and you’re good to go. A little different with a manual choke carb.

@MrSHAUNE55 3 ай бұрын

On my Edelbrock 1407 with electric choke I can't adjust the fast idle with the engine running, I can't get to the screw. I have to open the throttle fully so the screw turns and faces a position where I can access it. I have seen manual conversion kits that have a ton of parts in them, is it not possible to remove the electric part and fit a cable to do the job of the bi-metal strip? The problem I have is when the car has been left for a while you have to pump the throttle to get it to start, but that knocks the choke off.

@MuscleCarSolutions 3 ай бұрын

@@MrSHAUNE55 I’m sure you could probably rig something, but not sure you’d have any luck getting better access to the idle speed screw because of it.

@MrSHAUNE55 3 ай бұрын

@@MuscleCarSolutions No, it will still need to be held open at full throttle to get to the screw. I've never been a fan of auto chokes, a manual one would be much better. I think I will have one last try at getting it setup properly first. The car hardly gets used so when you come to fire it up after a few weeks it's hard to get it going, it's as if it's not getting fuel but the accelerator pump works but then it ends up flooded, think it over chokes.. It's hard because it's not my car so only see it now and again. The choke is set so it's just on, I'll watch your other vide.

@3Repete 27 күн бұрын

Assuming your electric choke is powered and adjusted for cold close... So with the engine off hold the throttle open and creep up on the fast idle you want. To do it you can momentarily swing the fast idle cam in there with a warm engine to test things. When you let it free the choke will reopen if it's warm, or work normally if it's engaged cold. If you go in to the Edelbrock book/website you are doing it the way they say to do it.

@phoqueewe7230 2 ай бұрын

Question about the AVS2 Thunder 1913 I have a 1980 firebird 301 and I found that they put 700-800 cfm carbs in these back in the day. I want to build a bigger engine but for now I need a new carburetor. Will this work? I have the rise plate that cuts the volume in half on the back ports.

@288gto7 3 ай бұрын

Great video, i have one question about my 1976 european ford taunus with 1.6 pinto engine and autolite 1250 single barrel carb. It cold starts fine and accelerator pump also works it doesnt bog when i suddently tap the gas when its cold BUT on the return to idle after giving that gas it bogs down and feels like its about to stall but then recovers and goes back to idle speed again. This only happens when cold, its fine once it warms up. Do you know what could be causing this issue with the bog when returning back to idle?

@skwermotors 3 ай бұрын

Crystal clear, Thank you.

@MuscleCarSolutions 3 ай бұрын

@@skwermotors wasn’t sure I had what you were looking for when I got your email, but it was an easy edit to post today. Hope it helps!

@prycewilkins 20 минут бұрын

Ok this will be long winded. I have a new avs2 carb on sbc350 and when I crank the truck it idles up to 1k rpm and it starts to idle up on its own to around 2500 rpm. It will stay at 2500 rpm until I tap the throttle and it drops to 750-800 rpm for a few seconds and it starts idling back up to 2500 rpm’s . What am I missing or what should I look at to correct this? Thank You for your videos as they are a wealth of knowledge and information.

@MuscleCarSolutions 12 минут бұрын

@@prycewilkins start with the basics! What is your initial timing set at? What intake manifold is this on? Is the manifold bolted directly to the manifold or are you running a spacer? What is your fuel pressure at the carburetor?

@prycewilkins 2 минут бұрын

@ lol I knew you would bust me on the basics. It’s on a edelbrock air gap intake and at the moment it’s bolted directly to the intake. I have a new cap rotor and ignition module msd plug wires and laminated 1 inch spacer that will be here Saturday. As far as timing i don’t know as i don’t have a timing light but am looking at one to buy. I do know I’m having ignition or spark issues because it’s backfiring under load or actually when I let off the throttle and it’s hesitating or stuttering going through the gears ( 4 spd manual). As you say I need to get the timing and ignition set first lol.