going to tune/dyno, help me on a/f ratio and maybe timing
09-04-2003, 07:37 PM
#1
0.5 BAR
Thread Starter
Join Date: Jul 2003
Posts: 174
going to tune/dyno, help me on a/f ratio and maybe timing
Ok, so i watn this bitch at 170whp and nice 11.5-12 a/f
anyhow, i only know so much.. i know to keep it around 12 when at boost and maybe 11.5 near the top for safety (i'm going for conservative tune)
so can you guys posts some dyno graphs or tell me what a/f ratio should i run for:
idle
higher idle
not boosted but spooling in vacuum
spooling from 0psi to max psi (7.5)
and should i get a feel on my car when it fully spools etc..so i assume do a 3rd or 4th gear run on the street to test out the spool rpms?? it spools diff sometimes, usually though full boost is latest by 3500... but sometimes 3000.. dunno
for ign, i'm retarded around 6 deg from the normal timing.... should i retard more or what... i'm using smc 500 so it advances timing..
i hear peopole just retarding 2-4 deg but the smc manual says at least 6-8 or more....
help me out so i can tune this bitch and put it up and show how good the smc 500 is..
(btw, my idle is pretty good., never stalls and hardly pulses.. i idled for 15 min once and no probs.)
anyhow, i only know so much.. i know to keep it around 12 when at boost and maybe 11.5 near the top for safety (i'm going for conservative tune)
so can you guys posts some dyno graphs or tell me what a/f ratio should i run for:
idle
higher idle
not boosted but spooling in vacuum
spooling from 0psi to max psi (7.5)
and should i get a feel on my car when it fully spools etc..so i assume do a 3rd or 4th gear run on the street to test out the spool rpms?? it spools diff sometimes, usually though full boost is latest by 3500... but sometimes 3000.. dunno
for ign, i'm retarded around 6 deg from the normal timing.... should i retard more or what... i'm using smc 500 so it advances timing..
i hear peopole just retarding 2-4 deg but the smc manual says at least 6-8 or more....
help me out so i can tune this bitch and put it up and show how good the smc 500 is..
(btw, my idle is pretty good., never stalls and hardly pulses.. i idled for 15 min once and no probs.)
09-05-2003, 11:14 PM
#6
0.5 BAR
Join Date: May 2003
Posts: 189
Re:going to tune/dyno, help me on a/f ratio and maybe timing
09-06-2003, 07:39 PM
#8
0.5 BAR
Join Date: May 2003
Posts: 189
Re:going to tune/dyno, help me on a/f ratio and maybe timing
The hell you talking about. The a/f graph is right on the bottom. Make sure you're looking at the turbo graphs, most of the normal D series graphs don't have the a/f. Click the forced induction link!
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