Edelbrock 600 (1406) & 6p 13B

Rogue_Wulff · 09-11-2008, 06:23 PM

Anyone running this combo?
I'm mainly looking to see if anyone has had to retune the carb, or if the outta the box setup worked good for them. I can get a good idle, and it will snap to attention when the the throttle is at WOT, but it has a major bog in the lower RPM range. I'm thinking the step up springs may be a bit too heavy.

So, anyone got a baseline tuning setting for this carb?

EDIT: Typo in title, should read 1405.....

Jeff20B · 09-12-2008, 01:15 PM

My Edelbrock experience is limited to use on a Camden but what I can tell you is your springs may be too soft. If they were stronger they would lift the meetering rods sooner adding more power sooner. They are held down with vacuum signal. The stronger the springs, the sooner they lift as you accelerate/the less vacuum it takes to lift them.

impulsive-RX7 · 09-12-2008, 01:58 PM

I doubt it will do well out of the box. They are calibrated for a v8 application. You will at least need to change metering rods and jets. I'll see what I have on my 1405, It's seems to be tuned pretty well... I have a 12A, but it should give you a base line.

Rogue_Wulff · 09-12-2008, 03:04 PM

Quote:

Originally Posted by Jeff20B

My Edelbrock experience is limited to use on a Camden but what I can tell you is your springs may be too soft. If they were stronger they would lift the meetering rods sooner adding more power sooner. They are held down with vacuum signal. The stronger the springs, the sooner they lift as you accelerate/the less vacuum it takes to lift them.

Actually, I think I have the opposite problem. Just above idle, it starts crapping out. When it starts crapping out, fuel is dribbling from the boosters. I *think* the springs are too strong, and lifting the rods too soon. Once I raise the RPM enough to get past the crappy spot, it rocks. Getting it above 3K is the problem, from 3K till BEEEEEEEEEEEEEEEP!!!! is great.
I'm going to pull the springs out, to test my theory. If that works, it's time to make a 30 mile trek into town, for the $9 spring kit and a set of fresh plugs.
I don't care about the road-drivability aspect, as this car will likely only see autox/track use for a while.
While I'm at the speed shop, i'm gonna inquire about solid floats. I have access to a stock S4 turbo manifold and turbo. I just might go blow thru on the 1405......

impulsive-RX7 · 09-12-2008, 05:08 PM

Which springs are in it right now? I have the pink springs in mine.

Rogue_Wulff · 09-12-2008, 07:40 PM

I've got the factory orange springs. As far as I know, the carb is still sporting the factory setup. It was bought, installed, and never worked right. It had a metering rod retainer clip that was on wrong, causing that rod to hang in the raised position, and the dizzy was way off.
I still haven't determined if the timing is quite where it needs to be, seems my timing light went MIA. Playing with the dizzy, I got part of the bog out, but I'm sure the carb still needs fine tuning.

impulsive-RX7 · 09-12-2008, 08:35 PM

Nevermind, I think I have the orange springs in too. I tried the pink springs but went back to the orange ones.

Rogue_Wulff · 10-04-2008, 04:27 PM

I'm guessing very few have ever attempted to use this combo. I have the car at a point that it is ready to hit the road, aside from being tagged. I'll look into the cost of tagging it this coming week. I'm kinda curious how it's gonna run. I have been very tempted to swap the plate off my 83, and go for a back road run. There are advantages and disadvantages to living across the street from the police chief, in a small town. My stuff is rather safe, but it would be difficult to hide the plate swap........

Rogue_Wulff · 10-06-2008, 07:36 PM

Well, I tagged the car, and went for a run. Aside from ignition/timing issues, it runs quite well. It's being a pain though. When the timing was off, it idled great. Now that I am getting the timing closer, the idle is getting crappy. The crappier the idle gets, the harder the damn thing pulls........

FC Zach · 10-06-2008, 08:58 PM

How are you checking/setting the timing? I check/set mine at 5K RPM. 8 deg BTC on trailing and 23 deg BTC on leading. This setting works just fine for the higher RPMs. Works well enough for around town too.

Rogue_Wulff · 10-06-2008, 10:14 PM

I'm using my ears and the butt dyno, since my timing light is MIA. The pulley is also not installed correctly, which further complicates things....

FC Zach · 10-07-2008, 12:25 AM

Doesn't the pulley only go on one way? I honestly don't remember, I thought the holes were offset and the pulley could only go on one way. Or do you have another problem? If so I guess you could just put it on TDC and make yourself some new marks w/ a protractor and a compass and a little creativity.

Rogue_Wulff · 10-07-2008, 01:06 AM

Pulley can go on any of 4 different ways. Perhaps newer engines only allow for one way to install the pulley, but this is an '84 6P 13B.
The RB intake blocks access to one of the bolts holding the inspection cover, so I can't line it up using the flat spot on the flywheel. I've got it very close to being timed right. Once I get it in the ball park, I can reset the pulley, so I can fine tune it with a timing light.

FC Zach · 10-07-2008, 01:17 AM

Good luck man, it took me forever to get mine just right. Sometimes help from a friend can be a great thing. Especially if your setting it the timing, holding the light, and holding the throttle at the same time. Your using the vac. advances on the distributor?

Rogue_Wulff · 10-07-2008, 09:45 AM

Yeah, I have the vac advances hooked up.

09-11-2008, 06:23 PM	#1
Rogue_Wulff Non Member Join Date: Jun 2008 Posts: 310 Rep Power: 18	Edelbrock 600 (1406) & 6p 13B Anyone running this combo? I'm mainly looking to see if anyone has had to retune the carb, or if the outta the box setup worked good for them. I can get a good idle, and it will snap to attention when the the throttle is at WOT, but it has a major bog in the lower RPM range. I'm thinking the step up springs may be a bit too heavy. So, anyone got a baseline tuning setting for this carb? EDIT: Typo in title, should read 1405..... Last edited by Rogue_Wulff; 09-11-2008 at 06:34 PM.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

09-12-2008, 01:15 PM	#2
Jeff20B Rotary Fanatic Join Date: Mar 2008 Posts: 215 Rep Power: 18	My Edelbrock experience is limited to use on a Camden but what I can tell you is your springs may be too soft. If they were stronger they would lift the meetering rods sooner adding more power sooner. They are held down with vacuum signal. The stronger the springs, the sooner they lift as you accelerate/the less vacuum it takes to lift them.

09-12-2008, 01:58 PM	#3
impulsive-RX7 Rotary Fanatic Join Date: Feb 2008 Location: Jacksonville, NC Posts: 105 Rep Power: 18	I doubt it will do well out of the box. They are calibrated for a v8 application. You will at least need to change metering rods and jets. I'll see what I have on my 1405, It's seems to be tuned pretty well... I have a 12A, but it should give you a base line.

09-12-2008, 05:08 PM	#5
impulsive-RX7 Rotary Fanatic Join Date: Feb 2008 Location: Jacksonville, NC Posts: 105 Rep Power: 18	Which springs are in it right now? I have the pink springs in mine.

09-12-2008, 07:40 PM	#6
Rogue_Wulff Non Member Join Date: Jun 2008 Posts: 310 Rep Power: 18	I've got the factory orange springs. As far as I know, the carb is still sporting the factory setup. It was bought, installed, and never worked right. It had a metering rod retainer clip that was on wrong, causing that rod to hang in the raised position, and the dizzy was way off. I still haven't determined if the timing is quite where it needs to be, seems my timing light went MIA. Playing with the dizzy, I got part of the bog out, but I'm sure the carb still needs fine tuning.

09-12-2008, 08:35 PM	#7
impulsive-RX7 Rotary Fanatic Join Date: Feb 2008 Location: Jacksonville, NC Posts: 105 Rep Power: 18	Nevermind, I think I have the orange springs in too. I tried the pink springs but went back to the orange ones.

10-04-2008, 04:27 PM	#8
Rogue_Wulff Non Member Join Date: Jun 2008 Posts: 310 Rep Power: 18	I'm guessing very few have ever attempted to use this combo. I have the car at a point that it is ready to hit the road, aside from being tagged. I'll look into the cost of tagging it this coming week. I'm kinda curious how it's gonna run. I have been very tempted to swap the plate off my 83, and go for a back road run. There are advantages and disadvantages to living across the street from the police chief, in a small town. My stuff is rather safe, but it would be difficult to hide the plate swap........

10-06-2008, 07:36 PM	#9
Rogue_Wulff Non Member Join Date: Jun 2008 Posts: 310 Rep Power: 18	Well, I tagged the car, and went for a run. Aside from ignition/timing issues, it runs quite well. It's being a pain though. When the timing was off, it idled great. Now that I am getting the timing closer, the idle is getting crappy. The crappier the idle gets, the harder the damn thing pulls........

10-06-2008, 08:58 PM	#10
FC Zach RCC Loves Me Not You Join Date: Mar 2008 Location: Eagleville, TN Posts: 2,267 Rep Power: 20	How are you checking/setting the timing? I check/set mine at 5K RPM. 8 deg BTC on trailing and 23 deg BTC on leading. This setting works just fine for the higher RPMs. Works well enough for around town too.

10-06-2008, 10:14 PM	#11
Rogue_Wulff Non Member Join Date: Jun 2008 Posts: 310 Rep Power: 18	I'm using my ears and the butt dyno, since my timing light is MIA. The pulley is also not installed correctly, which further complicates things....

10-07-2008, 12:25 AM	#12
FC Zach RCC Loves Me Not You Join Date: Mar 2008 Location: Eagleville, TN Posts: 2,267 Rep Power: 20	Doesn't the pulley only go on one way? I honestly don't remember, I thought the holes were offset and the pulley could only go on one way. Or do you have another problem? If so I guess you could just put it on TDC and make yourself some new marks w/ a protractor and a compass and a little creativity.

10-07-2008, 01:06 AM	#13
Rogue_Wulff Non Member Join Date: Jun 2008 Posts: 310 Rep Power: 18	Pulley can go on any of 4 different ways. Perhaps newer engines only allow for one way to install the pulley, but this is an '84 6P 13B. The RB intake blocks access to one of the bolts holding the inspection cover, so I can't line it up using the flat spot on the flywheel. I've got it very close to being timed right. Once I get it in the ball park, I can reset the pulley, so I can fine tune it with a timing light.

10-07-2008, 01:17 AM	#14
FC Zach RCC Loves Me Not You Join Date: Mar 2008 Location: Eagleville, TN Posts: 2,267 Rep Power: 20	Good luck man, it took me forever to get mine just right. Sometimes help from a friend can be a great thing. Especially if your setting it the timing, holding the light, and holding the throttle at the same time. Your using the vac. advances on the distributor?

10-07-2008, 09:45 AM	#15
Rogue_Wulff Non Member Join Date: Jun 2008 Posts: 310 Rep Power: 18	Yeah, I have the vac advances hooked up.