Need Help with tuning Webers

[aldersonjames20]

Originally Posted by 427Aggie

5. ARE YOU RUNNING SOME TYPE OF FILTER ON THE CARB!?!
bad bad bad...I could absolutely NEVER get mine tuned if I had any type of filter on the carb...theres a really good air flow analysis over on the GT40s.com website that shows how much these things like air and how anykind of disruption changes the complete characteristics.
matt

So you run your webers open, no filter of any kind? I have velocity stacks on my efi that I am thinking of running with no filter, but everyone I talk to says that it will be fine, till I suck a rock in there or too much dust. I have actually picked rocks out of my current filter so I have to say it does scare me. How do you prevent this type of thing?

James

[ENTDOC]

is it possible that you have a header leak that is giving you a false reading on the LM-1? I just orderd several sets of jets and got an LM-1 so I can try to get mine running better also. Aggie has much info on these things and will tell you some issues that pop up on 427 slanted manifolds. These things are frustrating but fun.

[Randy Rosenberg]

Originally Posted by ENTDOC

is it possible that you have a header leak that is giving you a false reading on the LM-1? I just orderd several sets of jets and got an LM-1 so I can try to get mine running better also...

LM-1's seem not to like being at the end of a sidepipe. I don't have one, but when a trusted expert tried to use one on my SPF, it didn't accurately at all. Others in our BACC have had the same problem, and they have installed O2 sensor plugs (ports) in their collectors in order to get the O2 sensor closer to the source and away from the end.

Hope this helps,
Randy R...

[Terry Brown]

I am the lucky recipient of one of Traindriver's laser cut plates. I had mine chromed and it simplified my linkage setup. Works much better than the side pull linkage. I think you are getting the DISCOUNTED price!! Better get it now before he raises the price!




Terry Brown SPF 930