Base timing, advancement yeild hp gain?

[bmxboi23]

'90 lx 4dr w/F22a1 with I/H/E, H23 intake mani and trans. I don't have a dyno that I can use, so I can't adjust my timing, dyno it and repeat. Would advancing (or retarding) it make much of a difference with just the basic mods I have or would the ecu just cancel it out? A suggestion or reccomendation as to where I should set it and est gain (ex. X deg btdc, X hp X tq) would be helpful.
Thanks

[wed3k]

you'd see some hp with street legal race gas.

[deevergote]

Adjusting the ignition timing basically moves the powerband around. Without a dyno, you really can't determine exactly where to put it for the most gain. Stay within 2* of stock (13*-17*) and you'll be fine.

[rcpaul]

I believe that slightly more advance is a bit better for high RPM power. But without having a way of monitoring it I wouldn't advance it past the stock limit of 17 degrees. I have an IHRA drag strip less than 5 miles away so I could do a little experimenting with it but if I do I'm still not going to take it much out of the specs (20 deg. advance max)

[bmxboi23]

Thanks for the info, it was to my knowledge that the only place localy w/ a dyno was employed by total idiots, but I managed to find another not too far away. Hopefully this week I will get a chance and set it to 16-17* and take it there, I'll post results when I do so.

[mj213]

keyword "retard" ftw