some stuff the ef/el owners out there can do!
i am taking this out of the street machine magazine so if anything is wrong so come abusing me!!! ;-)
and i quote.
on a standard ef six premium fuel was worth 4kw, no doubt due to the ignition advance from the knock sensor. A set of genie headers and a 2.5 inch exhaust(standard cat) was worth 6kw. A 3 inch mandrell bent pipe between the air cleaner and the throttle body was tested, showing a gain of 4kw in the top end. So, power was increased by a combination of these three things, gaining an extra 12 percent in power and improving acceleration times for the 0-100kmph dash by 0.5 sec. The managment was not altered for these test, so a properly tuned eec-v would net further gains. Next step would be a cam change.
i would have to say i agree with this as we did this to a mates car you could notice the extra pick up. after doing these mods my mate went out and bought a pod hooked up one of my cold air set ups and put in a high flow cat and installed a cam and had the ports taken out to xr specs (but standard valves)then had the eec-v tuned. i cant remember the dyno figure but it managed to reel of a 14.6 with a set of 3.7 in the diff and a t-5 box.
anyways it just some more grass to chew on for the ef/el blokes out there
live in S.E. queensland? bit of a revhead? click here!!--> speedphreaks
1000hp is underway. rods,pistons here!! t88 on its way!!