Jump to content
Guest Anonymous

whos runnin 40/40 dfav and whats your jet sizes?

6 posts / 1105 viewsLast Reply

Recommended Posts

Guest Anonymous

my carb seems like the jets are too big. the adjustment screws are almost all the way in and if i squeek them out just a little tis rough running and smells too rich. was wandering if someone with this carb that is idling and running wel could tell me what size jets they have. thanks for any info.

Share this post


Link to post
Share on other sites

170/175 main/air with 60 idle with my Metric 2200 hiflo.

Use a CO meter and tune to 2.5% like a tii.

Also tune both barrels for max vacuum at idle (sync them) with a standard vacuum gauge.

I also plugged my secondary enrichment jets, there are TWO on a 40-40, instead of one on a 32-36.

Check float level as well.

My car runs nicely, nice transition at low speed, no lumpyness or lurching. I've also seen 27/28 mpg highway in warm summer air at 70mph with a 4speed and a 3.90 rear and 185/70 13s.

Share this post


Link to post
Share on other sites
Guest Anonymous

yep. i think mine are too big. 186 main and 185 air.

Share this post


Link to post
Share on other sites

You sure its not 180/185? That is the stock from weber jetting.

185/185 would be waaay rich as you are experiencing.

Share this post


Link to post
Share on other sites

Yeah, I know it's an old thread, but here's what I have:

Idle: 70

Mains: 180

Accelerator Pump Jet: 50

I suspect that these are a bit much for an otherwise stock engine, but the plugs are burning clean...

Curt

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.




×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.