Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

301t Won't idle

<< < (7/9) > >>

Cliff Ruggles:
The long thin tubes are secondary air, the outer tubes are POE.

Fuel level in the bowl has an impact on how much fuel is metered with any particular fuel pressure and fuel inlet seat diameter......Cliff

canadian nascar:
Hi Cliff,

I know which tubes you mean, so I will drill out the tip .036-.040. correct. to change the a/f at wot.?

thanks again Kevin

Cliff Ruggles:
Opening them up will have a minor effect on full throtte A/F, as it adds more emulsion air to the incoming fuel.....Cliff

canadian nascar:
Hi Guys,

trying to launch from a stand still.

my car has a 2500 stall but is at 0 boost vacumm at 2100rpm foot braking and wot, i can hold the car to 2500rpm. at 2500 i have 3-4 lbs of boost but it will run on the primaries untill 3000 rpm then the secondaries come on but my 0-60ft is 4secs.

how do i get the secondaries to come in at 2200-2500 rpm?

the secondaries come in hard when they do and rolling at 20mph or higher they come in instantly.

thanks Kevin

Cliff Ruggles:
Yikes, 4 seconds is really lagging.  Might want to contact some folks who drive and race the turbo 301's.  I have no experience here with them, even though I build Pontiac engines and street drive and race my Ventura with a 455 in it......Cliff

Navigation

[0] Message Index

[#] Next page

[*] Previous page