Need help for a friend
Here is the current set up:
Cam 211-222 @ .050 w/ .513/.540 on a 114 (Custom Grind)
Head flow is as follows (Intake only, exh was not flowed):
.25 179.6
.30 206.3
.35 230.1
.40 247.3
.45 259.0
.50 263.4
.55 267.8
.60 267.8
.65 268.5
Z06 springs, stock valves, bottom end is JE forged, stock crank and rods, FIPK, Vig 2600 stall, EW Tuning, No other mods.
We took the car out with A-tap and my Tazzo (Much like G-tec, but much more accurate/consistant). This is how things looked:
Mods above:
First Pass: 13.8x @ 102.5
Average Timing 25* (25.5* max) <img border="0" alt="[barf]" title="" src="graemlins/gr_barf.gif" />
Average of 3.4* KR (4* max) KR the whole pass
02’s average .73 (.805 max) <img border="0" alt="[barf]" title="" src="graemlins/gr_barf.gif" />
Injector Duty Av 15.29ms (16.29 max)
Changed some things around. Brought my GMAF, MAFT and timing tricker and set the MAFT 4% rich:
Second pass: 13.8x @ 104.5
Average Timing 26.5* (27.5* max)
Average of 2.3* KR (3.7* max) KR the whole pass
02’s average ..895 (.91 max)
Injector Duty Av 19.22ms (20.46 max)
Changed the MAFT to 8% rich:
Third pass: 13.6x @ 106.3
Average Timing 28.83* (29* max)
.5* max KR (only in second right after the shift)
02’s average .916 (.93 max)
Injector Duty Av 20.51ms (21.55 max)
We made a few more passes but A-tap was not logging on my system <img border="0" alt="[Banging Head]" title="" src="graemlins/gr_banghead.gif" /> ..I realized the car was only shifting at 6k <img border="0" title="" alt="[Mad]" src="gr_images/icons/mad.gif" /> . He should have had EW change the limiter and shift points INHO. I know he needs to complete the bolt on section but I would think it should be running a little better than this. My 2001 M6, stock cam, lid, GMAF, on the same road went 13.1x @ 110-111 several times.
Any ideas on what to do? <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
<small>[ October 28, 2002, 02:56 PM: Message edited by: LIL SS ]</small>
Cam 211-222 @ .050 w/ .513/.540 on a 114 (Custom Grind)
Head flow is as follows (Intake only, exh was not flowed):
.25 179.6
.30 206.3
.35 230.1
.40 247.3
.45 259.0
.50 263.4
.55 267.8
.60 267.8
.65 268.5
Z06 springs, stock valves, bottom end is JE forged, stock crank and rods, FIPK, Vig 2600 stall, EW Tuning, No other mods.
We took the car out with A-tap and my Tazzo (Much like G-tec, but much more accurate/consistant). This is how things looked:
Mods above:
First Pass: 13.8x @ 102.5
Average Timing 25* (25.5* max) <img border="0" alt="[barf]" title="" src="graemlins/gr_barf.gif" />
Average of 3.4* KR (4* max) KR the whole pass
02’s average .73 (.805 max) <img border="0" alt="[barf]" title="" src="graemlins/gr_barf.gif" />
Injector Duty Av 15.29ms (16.29 max)
Changed some things around. Brought my GMAF, MAFT and timing tricker and set the MAFT 4% rich:
Second pass: 13.8x @ 104.5
Average Timing 26.5* (27.5* max)
Average of 2.3* KR (3.7* max) KR the whole pass
02’s average ..895 (.91 max)
Injector Duty Av 19.22ms (20.46 max)
Changed the MAFT to 8% rich:
Third pass: 13.6x @ 106.3
Average Timing 28.83* (29* max)
.5* max KR (only in second right after the shift)
02’s average .916 (.93 max)
Injector Duty Av 20.51ms (21.55 max)
We made a few more passes but A-tap was not logging on my system <img border="0" alt="[Banging Head]" title="" src="graemlins/gr_banghead.gif" /> ..I realized the car was only shifting at 6k <img border="0" title="" alt="[Mad]" src="gr_images/icons/mad.gif" /> . He should have had EW change the limiter and shift points INHO. I know he needs to complete the bolt on section but I would think it should be running a little better than this. My 2001 M6, stock cam, lid, GMAF, on the same road went 13.1x @ 110-111 several times.
Any ideas on what to do? <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
<small>[ October 28, 2002, 02:56 PM: Message edited by: LIL SS ]</small>
Are the heads ported? Who?
Why wasn't the exhaust flowed too?
Was the swirl dam removed/altered?
What was the temp etc?
G-Tech/Tazzo whatever, I wouldn't think that was as accurate as taking it to the track etc.
What did EW have to say about the results?
Why wasn't the exhaust flowed too?
Was the swirl dam removed/altered?
What was the temp etc?
G-Tech/Tazzo whatever, I wouldn't think that was as accurate as taking it to the track etc.
What did EW have to say about the results?





