? for Harlan or others who have custom tuned turbos @7 psi, 94 octane
05-16-2002, 08:31 AM
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? for Harlan or others who have custom tuned turbos @7 psi, 94 octane Soon, I will up the boost to 6 or 7 psi, go to larger injectors, and get the custom tuning that
this would make necessary. The shop that I plan to use has the capability of using superchips
tuning while the car is on their dyno. Are there any worries here?
What should I be looking at for timing at the torque peak and at redline? I want to be able to
see if they can answer this question to demonstrate their competence. Ideally, I'd like to get
away with 93 octane (I'll buy 94 all the time, but I don't want a sub par tank to kill the engine).
The place sounds pretty good. They intend to fab some adjustable actuators to increase the
boost. No overly complicated, but it leads me to think that they know what they're doing.
They were big into buicks, and are now doing LS1 work amongst others.
The one thing that does worry me is that, after I asked about LS1 edit, they dismissed it as
too complicated to use, and that their way was better.
Any other comments welcome.
this would make necessary. The shop that I plan to use has the capability of using superchips
tuning while the car is on their dyno. Are there any worries here?
What should I be looking at for timing at the torque peak and at redline? I want to be able to
see if they can answer this question to demonstrate their competence. Ideally, I'd like to get
away with 93 octane (I'll buy 94 all the time, but I don't want a sub par tank to kill the engine).
The place sounds pretty good. They intend to fab some adjustable actuators to increase the
boost. No overly complicated, but it leads me to think that they know what they're doing.
They were big into buicks, and are now doing LS1 work amongst others.
The one thing that does worry me is that, after I asked about LS1 edit, they dismissed it as
too complicated to use, and that their way was better.
Any other comments welcome.
05-16-2002, 10:35 AM
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Re: ? for Harlan or others who have custom tuned turbos @7 psi, 94 octane </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Mark C:
<strong>The one thing that does worry me is that, after I asked about LS1 edit, they dismissed it as too complicated to use, and that their way was better.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Interesting comment. I did a whole host of mods that worked great on my Igl, though they were the simpler route. I would give them a shot, as long as you get to validate the techniques/equipment BEFORE they use it.
I'm an engineer, which is the practical application of physics. Simpler always appeals to my engineering instincts.
SC
<strong>The one thing that does worry me is that, after I asked about LS1 edit, they dismissed it as too complicated to use, and that their way was better.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Interesting comment. I did a whole host of mods that worked great on my Igl, though they were the simpler route. I would give them a shot, as long as you get to validate the techniques/equipment BEFORE they use it.
I'm an engineer, which is the practical application of physics. Simpler always appeals to my engineering instincts.
SC
05-16-2002, 01:48 PM
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Re: ? for Harlan or others who have custom tuned turbos @7 psi, 94 octane </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by y2khawk:
<strong>
If they think LS1 Edit is too complicated, i'd love to see their alternative. The laptop is your friend, and can make or break a setup. Tune-by-mail is sketchy at best <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Thanks.
Actually, its not by mail. They have the capability to get the electronic data from superchips and transfer it to the car while the car is in their shop on the dyno. If they need a change, they call superchips, the change is made, and downloaded again. The way he was talking, it sounds like a sub 2 hour process from initial to final tune. How they do this, if its true, or how effective it is, I've no idea. They do say that they are doing an ATI C5 right now. I plan to check it out Saturday.
I did forget to say stock engine. 8 - 9 psi on 93 octane is very encouraging, downright fantastic. If I can get away with that, it'd be great. You've got me thinking that now. Fuel should be no problem, the plan is 42# injectors. The pump is from the Incon kit. What were you getting - 530 or 540 at the wheels with that?
<strong>
If they think LS1 Edit is too complicated, i'd love to see their alternative. The laptop is your friend, and can make or break a setup. Tune-by-mail is sketchy at best <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Thanks.
Actually, its not by mail. They have the capability to get the electronic data from superchips and transfer it to the car while the car is in their shop on the dyno. If they need a change, they call superchips, the change is made, and downloaded again. The way he was talking, it sounds like a sub 2 hour process from initial to final tune. How they do this, if its true, or how effective it is, I've no idea. They do say that they are doing an ATI C5 right now. I plan to check it out Saturday.
I did forget to say stock engine. 8 - 9 psi on 93 octane is very encouraging, downright fantastic. If I can get away with that, it'd be great. You've got me thinking that now. Fuel should be no problem, the plan is 42# injectors. The pump is from the Incon kit. What were you getting - 530 or 540 at the wheels with that?
05-16-2002, 01:58 PM
#4
Re: ? for Harlan or others who have custom tuned turbos @7 psi, 94 octane The 42's will be plenty for that boost
I ran the Walbro from the kit up to 584RWHP on 12 psi (dynojet), but had to hot wire the pump and boost the voltage to get there.
It was fine at 8 PSI. I believe I still had the 3800 injectors in there when i was running 8 psi.
I ran the Walbro from the kit up to 584RWHP on 12 psi (dynojet), but had to hot wire the pump and boost the voltage to get there.
It was fine at 8 PSI. I believe I still had the 3800 injectors in there when i was running 8 psi.
05-17-2002, 12:22 AM
#5
Re: ? for Harlan or others who have custom tuned turbos @7 psi, 94 octane As for advance
Assuming stock CR and cam, peak torque should be in the neighborhood of 4800 RPM. My advance was between 15° and 16° in that range on 93 and 8 to 9 psig. The advance ramped back up to 21° to 22° by redline at 6200
I ran the same advance curve but w/ a mix of 93 and 110 (75/25 ratio) and 13 psi without issue. Just make sure you have enough fuel delivery
If they think LS1 Edit is too complicated, i'd love to see their alternative. The laptop is your friend, and can make or break a setup. Tune-by-mail is sketchy at best <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Assuming stock CR and cam, peak torque should be in the neighborhood of 4800 RPM. My advance was between 15° and 16° in that range on 93 and 8 to 9 psig. The advance ramped back up to 21° to 22° by redline at 6200
I ran the same advance curve but w/ a mix of 93 and 110 (75/25 ratio) and 13 psi without issue. Just make sure you have enough fuel delivery
If they think LS1 Edit is too complicated, i'd love to see their alternative. The laptop is your friend, and can make or break a setup. Tune-by-mail is sketchy at best <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
06-06-2002, 09:14 AM
#6
Re: ? for Harlan or others who have custom tuned turbos @7 psi, 94 octane I was flipping though some old post and came across this one.
HAs any one ran 7psi with 94 octane?
What i think cause my head gasket to go was a boost spike up at 7psi.
I know when DSI was tuning it they said i was getting knock at 7psi.
Of all the FI people here i seem to be making the least power, and the slowest time on the track, and it only lasted 3 weeks before i took out a head gasket. <img border="0" alt="[barf]" title="" src="graemlins/gr_barf.gif" />
HAs any one ran 7psi with 94 octane?
What i think cause my head gasket to go was a boost spike up at 7psi.
I know when DSI was tuning it they said i was getting knock at 7psi.
Of all the FI people here i seem to be making the least power, and the slowest time on the track, and it only lasted 3 weeks before i took out a head gasket. <img border="0" alt="[barf]" title="" src="graemlins/gr_barf.gif" />
06-06-2002, 10:52 AM
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Re: ? for Harlan or others who have custom tuned turbos @7 psi, 94 octane </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Mark C:
<strong>
Actually, its not by mail. They have the capability to get the electronic data from superchips and transfer it to the car while the car is in their shop on the dyno.
</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I talked to superchips last week, and they told me that they are not doing mail order tuning anymore. They must have come up with something similar to LS1-Edit for the shops to use. They wouldn't even change the VIN on one of their programmers so I could sell it (the Bastards!).
Also, making an actuator adjustable is real easy (the GN guys figured it out decades ago). You just cut the rod in half (and take some material out of the middle), put some threads on each side, and tie them together with a sleeve that you can get at just about any hardware store. On a GN it was one turn per psi.
-Geoff
'02 Hawk #646
<small>[ June 06, 2002, 10:55 AM: Message edited by: White_2k2_Hawk ]</small>
<strong>
Actually, its not by mail. They have the capability to get the electronic data from superchips and transfer it to the car while the car is in their shop on the dyno.
</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I talked to superchips last week, and they told me that they are not doing mail order tuning anymore. They must have come up with something similar to LS1-Edit for the shops to use. They wouldn't even change the VIN on one of their programmers so I could sell it (the Bastards!).
Also, making an actuator adjustable is real easy (the GN guys figured it out decades ago). You just cut the rod in half (and take some material out of the middle), put some threads on each side, and tie them together with a sleeve that you can get at just about any hardware store. On a GN it was one turn per psi.
-Geoff
'02 Hawk #646
<small>[ June 06, 2002, 10:55 AM: Message edited by: White_2k2_Hawk ]</small>
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06-06-2002, 05:43 PM
#8
Re: ? for Harlan or others who have custom tuned turbos @7 psi, 94 octane i was running 7 psi on the initial tune with 94. 460 RWHP/480 RWTQ
Geoff, he's got an external wastegate. No threaded rod for him <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Geoff, he's got an external wastegate. No threaded rod for him <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
06-07-2002, 08:44 AM
#10
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Re: ? for Harlan or others who have custom tuned turbos @7 psi, 94 octane </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by White_2k2_Hawk:
<strong>
Also, making an actuator adjustable is real easy (the GN guys figured it out decades ago). You just cut the rod in half (and take some material out of the middle), put some threads on each side, and tie them together with a sleeve that you can get at just about any hardware store. On a GN it was one turn per psi.
</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I'm sure this is what they intend to do. Like I said, not complicated.
I never made it over there then. I plan to go tomorrow.
Y2K, you didn't mean me with the external wastegate comment?
<strong>
Also, making an actuator adjustable is real easy (the GN guys figured it out decades ago). You just cut the rod in half (and take some material out of the middle), put some threads on each side, and tie them together with a sleeve that you can get at just about any hardware store. On a GN it was one turn per psi.
</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I'm sure this is what they intend to do. Like I said, not complicated.
I never made it over there then. I plan to go tomorrow.
Y2K, you didn't mean me with the external wastegate comment?
