Topic: Help with carb install
in Forum: C3 Fuel, Emission Control, and Exhaust Systems
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Lifetime MemberLanoka Harbor, NJ - USA
Joined: 12/21/2006
Posts: 828
Vette(s): 1975 metallic blue coupe with t-tops,L48, t/t steering, black leather interior. 1990 L98, white/red leather interior, auto,a/c
[QUOTE=Adams' Apple]You got ya a good one there, Mike!! Better keep her!!!
Yeah, install the inline fuse in between the splice. I have to question the "ACC" install, tho. That would mean the only time the terminal is "hot" is when the key is in the ACC position. You might want to test the terminal first, to see that it has 12v with the key on, in the "Run" position. If that car has extra terminals marked "IGN", that would be the place to put it, unless the "ACC" terminals are in fact hot with the engine running.
Ya might need to ax the little Lady where to put it...she may know more than either of us!!
We both posted at the same time! I missed the question on the vacuum. Most of the engines are run off of ported vacuum. That means, there is no vacuum until the throttle is opened a bit. The ports for this will be on the bottom part of the carb, but above the throttle blade height. [/QUOTE]
joel on some cars acc is for an added item. on cars that i used them on it was that it was on in the acc position also. like on some cars electric windows work with key in run position and not on acc position and some work on either setting.
Yeah, install the inline fuse in between the splice. I have to question the "ACC" install, tho. That would mean the only time the terminal is "hot" is when the key is in the ACC position. You might want to test the terminal first, to see that it has 12v with the key on, in the "Run" position. If that car has extra terminals marked "IGN", that would be the place to put it, unless the "ACC" terminals are in fact hot with the engine running.
Ya might need to ax the little Lady where to put it...she may know more than either of us!!
We both posted at the same time! I missed the question on the vacuum. Most of the engines are run off of ported vacuum. That means, there is no vacuum until the throttle is opened a bit. The ports for this will be on the bottom part of the carb, but above the throttle blade height. [/QUOTE]
joel on some cars acc is for an added item. on cars that i used them on it was that it was on in the acc position also. like on some cars electric windows work with key in run position and not on acc position and some work on either setting.
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What Acc do I use? Also has anybody had to use the Eldebrock banjo fitting for the fuel line to clear the drop base air cleaner?
zgator 2007-03-04 11:16:30
Which part/series number Edelbrock Q-jet did you buy?
Darryl81 2007-03-04 16:54:13
I had one of those on my vette a couple years ago. I can't remember if it was a 1901 or 1904 series. It did work a helluva lot better than the 670 Holley street avenger carb. The only thing I didn't care for is that they use "truck style" metering rods in them according to a couple Q-jet guru's I spoke with. Cause I couldn't figure out why the Air/Fuel readings on the dyno were way lean at WOT. That was why.
Now I'm running a Q-jet that was built by SMI induction. Dyno readings are up 11hp / 30 ft.lbs torque out of the box. I'm still slightly lean but that will be easily resolved and ready for the next dyno session this spring.
I'm curious...were did you buy your carb from? I heard that Edelbrock was getting out of the Q-jet business quite awhile ago. And I haven't seen them listed in the Summit catalog for quite sometime. Don't get me wrong they are a good running carb though, so I'm not knocking them. Good luck!
TKO500 5 spd.
Borgeson Steering Box
Born 8/1981
Sequence #3975
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in Forum: C3 Fuel, Emission Control, and Exhaust Systems
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