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If this has been covered I'll apologize, I did do a search & came up with nothing satisfactory. Beyond set it at 10° BTDC, how much would one dare to bump the initial distributor timing 12°?, 14°? My truck is somewhat ported, and has a Crower 19212 camshaft 3" exhaust all the way from the head pipe back. A little more ign timing should help, I'd think. Or is fuel more likely my weakness? Don.t get me wrong, it runs good, and perhaps I'm just expecting too much, but it feels like it is on the verge of awesome, but some little thing is holding it back.
On my 95 300 5spd 3.08 gears, which had the speed density system, I did the "Six Liter Tuneup" which consisted of using the Ford motorsport wires, Motorcraft copper plugs gapped at .050, and increasing the timing to 12 Degrees BTDC. The engine was dead stock and performed better than before with the biggest difference noticed in acceleration. I now have a 96 300 5spd 3.31 gears with the MAF system and it is the quickest 300 of the 4 that I have had (92, 94, and the 95). I plan to do the Six Litre tune on this one before the winter and any additional mods will be to the exhaust side.
Even though Ford listed the 95-96 MAF 300 the same Hp and Torque as the Speed density models it feels faster especially over 2500 RPM. It seems to have more torque too going over steep hills.
If this has been covered I'll apologize, I did do a search & came up with nothing satisfactory. Beyond set it at 10° BTDC, how much would one dare to bump the initial distributor timing 12°?, 14°? My truck is somewhat ported, and has a Crower 19212 camshaft 3" exhaust all the way from the head pipe back. A little more ign timing should help, I'd think. Or is fuel more likely my weakness? Don.t get me wrong, it runs good, and perhaps I'm just expecting too much, but it feels like it is on the verge of awesome, but some little thing is holding it back.
have you swapped injectors? are you running an adjustable pressure regulator?
No all new fuel system, pumps etc, but no fuel pressure, or injector upgrade. I did the timing bump today and it is running much better, my test hill was pulled in 5th 65 mph at part throttle, no prodding. I don't know exactly where I'm at degree wise. The 96 has a pointer and a line on the balancer. I'll need to pickup a proper timing tape for that diameter and attach it to have any idea. I went about 1/4" past the line. It runs good and it isn't fighting the starter or pinging, so it will do for now.
No all new fuel system, pumps etc, but no fuel pressure, or injector upgrade. I did the timing bump today and it is running much better, my test hill was pulled in 5th 65 mph at part throttle, no prodding. I don't know exactly where I'm at degree wise. The 96 has a pointer and a line on the balancer. I'll need to pickup a proper timing tape for that diameter and attach it to have any idea. I went about 1/4" past the line. It runs good and it isn't fighting the starter or pinging, so it will do for now.
dont you have timing marks on your damper? my 96 does, as really all trucks do..i remember it has 8, 10, 12, etc on there.
I put it up and buffed the paint off with the diegrinder and a wire wheel. There are some marks, of a sort. I guess I'll try to make them work, at least until I can get a timing tape. The photo shows lots more detail, than the even eyeglass enhanced eyeball can see. This was heavily photoshopped to see that much. The sharpie marks were to preserve the the yellow line that was all there was before, it was between them.
Last edited by Eric Fullerton; 07-30-2017 at 10:54 AM.
This is kind of cool; all the commercial timing tapes seem to skip the 7.125 size, and while probably workable, would never be accurate. I found a site that lets you make one any size you want. Up to you to print it on something durable enough to last, but at least the math is correct. https://www.blocklayer.com/timing-tapeeng.aspx
07-24-2017, 02:45 PM
4.9 timing advance 1996 f150 4.9 5sp
