just wondering if anyone is running upgraded cams with out tuning???

If so, any difference, or problems???

 

The car runs, but your idle suffers along with your AFRs. There's not much gain when installing cams without a subsequent retune. People only run untuned on cams during the short time after installation and before their schedule retune date.

 

Ran my un-tuned cams for 3 months. Ran .4 faster in the 1/4 with 3" down pipe and H/F cat.

After tuning .... knocked off another .4 ( Granny shift into 4th )

HKS 264's

 

Just be sure to unplug the battery for a couple minutes so the ecu starts the learning process quickly.

 

thats what I'll probally be doing.. I got a hook up deal on installation, but not on the tune.. the tune has to wait.j
guess I got to drive like a roody-poo for the next couple of weeks

 

ran 264 cams for 2 months definite performance gains, AFR were really not bad and not dangerous but with the tune really picked up the ponies, made some timing changes for the extra gains.

 

I just got my 272/272 setup installed and tuned. Before any adjustments we ran it on a dyno dynamic and netted a 5whp gain. After several runs on the dyno with only a small amount of time in between to change the cam gear settings, we ended up with a total gain of 16whp. This is without a flash or piggyback ecu.

 

^nice