Thermoquad guys - jetting - Benchmark

[Moparmal]

Im interested in what primary and secondary jets the Small Block TQ guys are running on here. If you can post cams and head combo as well, that would be great.

 

[Moparmal]

Bump - so no-one runs a SB and a TQ on here??:-D

 

[72bluNblu]

I've got a 625 Carter AFB on my 318. I know it's not quite the same, but at the moment I have .100's in the primaries, .101's in the secondary jets, and .0700/.0600 metering rods. Still running a little rich on what I'm pretty sure is a stock 318 with a streetmaster 318 intake, I think .098 primaries and .100 secondary jets will be about right, should know in a couple days when I do the next jet change.

Not sure if that'll help you at all though...

 

[Moparmal]

Thanks for the reply - unfo AFB jetting is considerably different in the secondary side - due to the spread bore design of the TQ.

I think I have it set up there-abouts, but its flat spotting at around 5000 rpm in 2nd gear, so its either jetting or supply.

I was hoping to get some jetting set ups off others to see if Im not too far "off base"

 

[pettybludart]

You could try PMing DemonSizzler?Seems to be the go to guy with Thermoquads.Maybe he could help with ideas,advise?Hope this helps you out?

 

[Moparmal]

Thanks PBD - I spoke with Dave yesterday - He agrees it sounds like a fuel supply issue - Im using the factory "skinny" needles and seats - He's mailing over some high volume ones.

FWIW, he says its fairly typical for a cammed up small block to starve around 5000 rpm using the small .090th Ndls/seats - a tip worth noting.