how to lower rpm range Options

[eldrewado]

hello all, im new here. im looking to save more gas with my 99 gt. i was wondering if there is another differential i could use to lower my cruising rpm.
if i want more power ill leave it in 4th gear. 3000 revs at 60 mph or so seems a little high, granted its good for power.


anyone have any ideas?

[eldrewado]

thanks for everyone's replys, they were all good ideas.
i just got new (expensive) tires so ill be sticking with what ive got on that for now.
plus i don't want to diminish my braking capacity at all since i tend to have accidents.

i liked the ideas of retarding my timing and swapping the 5th gear from the older camry.
is there anything else i should know about in order to do these things?

[Special_Edy]

thanks for everyone's replys, they were all good ideas.
i just got new (expensive) tires so ill be sticking with what ive got on that for now.
plus i don't want to diminish my braking capacity at all since i tend to have accidents.

i liked the ideas of retarding my timing and swapping the 5th gear from the older camry.
is there anything else i should know about in order to do these things?

Well if you havent done a timing belt change you should go ahead and do one when you retard the timing. If you timing belt isnt in need of replacement then just follow the same procedure for replaceing it just dont bother to remove the lower timing belt cover or crankshaft pulley/harmonic balencer. Get the crankshaft to TDC compression stroke, which if you cant find which TDC is correct then remove the distributor cap and spin the engine(with a 3/4" or 19mm socket/wrench on the crank pulley bolt, clockwise not counterclockwise) until the crank pulley timing mark shows TDC 0° and the rotor inside the distributor is facing #1 cylinders point inside the distributor cap. Now loosen the tensioner bolt and spin the crank clockwise 5-10 degrees on the timing marks on the crankpulley until the belt is 1 notch behind normal on the camshaft sprocket. Make sure the belt is tight along the top and right side of the motor and reattach the tensioner spring and tighten down the tensioner pulley to make the left/lower side of the timing belt routing tight again.
When you finish reassembly you will have to recheck your ignition timing with a timing light and loosen/spin the disrtibutor until it reaches 10° advanced though you might try a few degrees less advanced and see how the motor performs there