Q-jet tuning

Reply Subscribe

Thread Tools

Search this Thread

Mar 26, 2004 | 09:06 AM

Deep sea vet

Thread Starter

Intermediate

Joined: Mar 2004

Posts: 32

Likes: 0

From: virginia beach va

Q-jet tuning

I just rebuilt my Q-jet an now I have a dead spot on the low RPMs. were should the mixure screws be set. and is there any other setting on the carb.

Mar 26, 2004 | 09:17 AM

page62

Le Mans Master

Joined: Mar 2002

Posts: 7,456

Likes: 2

From: Coming home from Luckenbach Texas

Re: Q-jet tuning (Deep sea vet)

You can get a copy of Lars' QJet tuning paper over at http://www.corvettefaq.com :yesnod:

Mar 26, 2004 | 09:21 AM

MGB

Instructor

Joined: Dec 2003

Posts: 167

Likes: 8

From: Blythewood S.C.

St. Jude Donor '14

Re: Q-jet tuning (Deep sea vet)

Try 1&1/2 turns out as a starting point for the air adjustment screws. Fine tune from there. good luck :thumbs:

Mar 26, 2004 | 09:41 AM

Boofers

Drifting

Joined: Nov 2002

Posts: 1,665

Likes: 1

From: Ontario

Re: Q-jet tuning (Deep sea vet)

Quote:

... is there any other setting on the carb.

:lolg: (sorry I couldn't resist) :D
Assuming the rest of your engine is untouched (you haven't changed your camshaft, adjusted your ignition timing, no vacuum leaks, etc) I would say the next step is to figure out whether you are running lean or rich at idle. Try a forum search or even better, check out these articles written by Lars (Q-jet guru).
http://forums.corvetteforum.com/zerothread?id=431354
http://www.corvettefaq.com/listing.asp?group=1&sub=11
:cheers:

Reply Subscribe