What's new
CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.

Boy...this sucks!!

I have some good advice for you Wes. Get rid of that Edelbrock 1407 piece of junk carb and put a Q-Jet on. I have a 1407 on my 350 in my 73 Pick-up and I can watch the gas guage go down while it idles.
shocked.gif
Hell I had Holley double pumpers that got better milage then the 1407 does. If I ever do another carb engine it will have a Q-Jet on it and I am considering putting the Q-Jet back on the 350 in the 73. I had the engine in Donna's 79 Camaro with a Q-Jet and all the smog stuff hooked up with a stock 4 BBL intake and stock exhaust and I pulled the engine out and put an Edelbrock Performer intake on and Headers and true duals and no smog crap and dropped it in the 73 with a 1406 carb on it and it still got crappy milage and on the top end it needed more so I put the 1407 on and it ran better but got worse milage. All in all the best it ran and the best milage was with a Q-Jet.

See <a target="_blank" href=http://coloradok5.com/gallery/Waynes-Toy>Project Mighty Mouse</a> here.
<font color=blue>Wayne<font color=blue>
<font color=blue>Happy Trails<font color=blue>
 
Frank, check with the insurance man before taking the IROC home. A few years ago I test drove a used '89 Trans Am GTA. OhMyGawd was it fun to drive! But before signing the papers, I called my agent to find out what it was going to cost to insure it. Once I heard $2,400 per year, I decided that it wasn't that much fun to drive!
mad.gif


My daily driver is a '91 S-Jimmy, loaded to the gills with options. It get 16-17 mpg around town, 18 on the higway while towing a small trailer and around 20 not towing. The speed limit on Colorado freeways is 75, so it would probably do even better at a slower speed.
wink.gif


<font color=black>HarryH3 - '75 K5</font color=black>
<a target="_blank" href=http://www.angelfire.com/super/ThunderTruck>www.angelfire.com/super/ThunderTruck</a>
It's a great day to be alive...
 
Wayne, I do have the Edelbrock Q-Jet, part number #1904. The one with the electric choke.
wink.gif




I'm not picking my nose...I'm just pointing at my brain!!
crazy.gif


<a target="_blank" href=http://coloradok5.com/gallery/thatK30guy>The K30 Collection</a>
 
<blockquote><font class="small">In reply to:</font><hr>

No person in this town has the balls to even try to steal gas, let along ANYTHING, from me or my place! I will let you come to your conclusion to WHY no one has the balls to do that!


<hr></blockquote>

Aaaaah! I can take ya! *spits tobacco*
laugh.gif



I have a short trip to work, but I let my truck warm up before I go anywhere and it's doing fine.

<font color=blue>Answers: $1, Short: $5, Correct: $25, dumb looks are still free.</font color=blue>

<a target="_blank" href=http://www.bluefox.tv/~lara>My Wonderful Site</a>
 
Man, sorry Wes, must have been on the crack pipe pretty good when I posted.
shocked.gif
I could have sworn you said a 1407 carb. My bust.
smile.gif


See <a target="_blank" href=http://coloradok5.com/gallery/Waynes-Toy>Project Mighty Mouse</a> here.
<font color=blue>Wayne<font color=blue>
<font color=blue>Happy Trails<font color=blue>
 
Instead of blowing the hundreds in gas for commuting, take 500 and go get yourself some little work beater. I had a Honda Accord LXi hatchback for that purpose, 2.0L FI 5 spd got me 35 mpg cruising and it's not a totally neutered car for power.
 
Thats what I have been doing....buying cheap cars.

The last cheap car I had, I paid $300 for it. It was a four-door Olds 98, ran good and I traded it in for my Blazer. Wished I had kept the car now.
frown.gif


In the past, I had a four-door Malibu Classic that ran fast and good. Paid $200 for that car.
wink.gif


I need to look for another cheap car anyways. Both of these past cars I had looked fairly new and ran great. They did not look like those rusted-out beaters like the "white trash" drive.
tongue.gif
laugh.gif




I'm not picking my nose...I'm just pointing at my brain!!
crazy.gif


<a target="_blank" href=http://coloradok5.com/gallery/thatK30guy>The K30 Collection</a>
 
I think you just need to get a Datsun and pimp it out Wes....
laugh.gif


&lt;&gt;&lt;<a target="_blank" href=http://www.chevycagal.homestead.com/steph.html>Steph's Webpage</a>&gt;&lt;&gt;
Suck Fumes Ford Boy
I'm in shape.... round is a shape......
 
hmm, elec choke huh. I just put a new Holley 770 cfm Street Avenger on my Jimmy. Everything hooked up correctly and fired right up no adjustments needed. But after I gased it up after two days going to work I was kinda upset, normally get 3-4 days before fillups. after looking around I found that my choke wasn't getting a full 12 volts, never opened up all the way. Check it out you never can tell.

Jay VT
79 Jimmy 454, 700R4, NP208, D44, 14 bolt, 4.56:1, 38's
 
You could do what I do for a commuter vehicle......I drive 31 miles one way......I got a company truck.....and a company credit card......gas mileage is......uh....who cares?...

Stuck?...Hell no..I still got some gas left..
 
I don't think any school district will give out "company cars".
laugh.gif
Especially not when you live 5 blocks away from the school.
tongue.gif




I'm not picking my nose...I'm just pointing at my brain!!
crazy.gif


<a target="_blank" href=http://coloradok5.com/gallery/thatK30guy>The K30 Collection</a>
 
Does that carb have a power valve that could be blown? I'd say if you want to keep it, have a good tune up done on it. Better yet, throw it in the trash where it belongs. TBI conversions are relatively cheap, and should get you a decent gain. My brother just picked up a harness, computer, TBI, etc for $150, just needs a few misc sensors that the donor truck didn't have (already gone). Get a harness/computer out of whatever, and a 454 TBI. Custom chip or a factory one if it will work, my buddy paid like $30 for one for a 4.3 Vortec (in a sammy
wink.gif
).

Dunno about where you live, but here in Denver we have extra crappy gas in the winter thats supposed to reduce smog, but all it really does is decrease your milage and make computer motors run crappy.

If you do a diesel swap, go 12V Cummins. As I recall you like manuals, get youself an NV4500, and an early Dodge/Cummins 205. Much easier and cheaper swap than a Duramax, and you get a better motor. FWIW, I get around 19 mpg daily driving mine, weight is around 7000 lbs.

Pete

'83 K5, 350 TBI (ex 6.2), 700R4, NP208, Dana 60/14 bolt, 4.56s, Detroits, 3" lift, 15-39.5x15 TSLs
'97 Dodge 2500 4x4 CC LB Sport, Cummins 5 spd
 
<blockquote><font class="small">In reply to:</font><hr>

I'd say if you want to keep it, have a good tune up done on it. Better yet, throw it in the trash where it belongs.

<hr></blockquote>
Wow, Pete! After spending $450 for this new Edelbrock Q-Jet, you think I'm gonna just throw it away already?
shocked.gif


Nah, I talked to a mechanic friend of mine who knows the Q-Jet stuff and he said to bring it by. So, just have to find the day to take it to him and see what he can do.
wink.gif




I'm not picking my nose...I'm just pointing at my brain!!
crazy.gif


<a target="_blank" href=http://coloradok5.com/gallery/thatK30guy>The K30 Collection</a>
 
Edelbrock EFI. For the cost of 1 Q-jet, and 3 beaters...

I just want to know how well they work. I wish I had one for my '66.
 
Another thing that I would check on is make sure none of your brakes are dragging to much. Specially rear drums. This would be an easy check just need to jack the truck up.
 
If your going to stay with a gas job, a friend of mine put a ZZ502 in a 1990 454ss truck, and achieved a best of 12 mpg if he drove it sane. Massive amount of torque as well. However, if you want to join the DARK SIDE I would have to agree with pcorrsmit and go with a 12 valve cummins. Just make sure you get a 94-98.5 model with the P-7100 injection pump. Much easier to hot rod than the 89-93 pump.

99 3500 dodge cummins, blah, blah, blah
soon to have: 90-91 blazer or jimmy with 6.2
I love the smell of diesel in the morning. (no,not really;))
 
First, your working against the grain to start with, but the milage should be better than 4/5 MPG.

Seems to me, something is outa-wack. A/F ratio? Spark?

1- Make sure the choke is pulling off, idle speed isn't to high (600-700 RPM).
2- Well plugs leaking? Even new carbs need to be checked.
3- Very imprtant to make sure the idle A/F ratio is as lean as it can be with-out causeing a drivability problem (lean-missfire). Most of the cruising fuel, is delivered by the idle circut and idle-transition circut. So proper idle speed and A/F ratio is very imprtant.
4- Main A/F ratio is controled by the main jet and metering rods (say, from aprox. 1000 RPM and up). With a big-block, you might be into the main circut sooner than with a small-block. (I don't know for sure)

Here's a little trick you might try with a Q-jet to get it to run a bit leaner under a part throttle cruise. Hold-on....gets a bit detailed.
The main jets are a set size. The metering rods are tapered and fit inside the main-jet, and basicaly, makes the main-jet bigger or smaller (deliver more or less fuel), depending on engine vacume. The more vacume there is, like under a cruize condition, the deeper the rods are "pulled" (more-accurately "dropped") into the jets, and therefore, reduse fuel supplie and that may-increase fuel economy.
The rods are hung on a acuator. The actuator has a plunger that is open to mainfold pressure, and a spring the pushes the actuator up. Get it? Vacume pulls the actuator down, and with it, the rods drop down into the jet. The spring pushes the actuator up, and with it, the rods. It's a balanceing act, between the engine vacume and spring force.
So.
Cut the spring pressure, and the rods will ride deeper in the jet. (kind-of a long story, just to get to that last little sentence)
There are 2-way to cut the spring pressure.
1- cut the spring
2- get the Edlebrock performance kit, it has an assortment of color keyed main metering rod/actuator springs, that are divided up by a vacume reading (like ## in/hg)


<font color=blue>NEW YEARS RESOLUTION
Install some seat-belts on the 'ol wagon.
Cuz' I keep falling off!
 
You must log in or register to reply here.

Latest Posts

Top Bottom