Horrific Dyno Results!
02-27-2003, 06:00 PM
#1
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Horrific Dyno Results!
OK - It wasnt at all what I was expecting...even the dyno guy said there's a leak in a vaccum hose or a break. (same thing) Look at how the lines jump down and up... WTF could that be? 
Any help would be great! D-sta, c'mon...dont flame me
02-27-2003, 06:24 PM
#3
Originally posted by DA-MAX
I don't see a picture
I don't see a picture
tq 148.8
damn da-max you were the closest
soul fly thats not horrible, the car is 10 years old (or more) it needs some work, you werent going to get more than stock, I didnt think more than 110 so you did better than my expectations
02-27-2003, 06:29 PM
#4
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Join Date: Aug 2000
Posts: 2,807
What mods does your car have? That power curve isn't smooth at all, almost like there is a miss-fire somewhere. If your car is an auto and without a Y pipe that is what I'd expect. My 87se dynoed 112whp/140wtq with just a KN panel filter and it makes 152hp/168tq @ crank. You should check your ignition and fix any vaccum hoses that are cracked or old.
I think i hafta change my fuel filter, god knows when the last one was changed...
02-27-2003, 06:35 PM
#6
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Originally posted by Nismo87SE
What mods does your car have? That power curve isn't smooth at all, almost like there is a miss-fire somewhere. If your car is an auto and without a Y pipe that is what I'd expect. My 87se dynoed 112whp/140wtq with just a KN panel filter and it makes 152hp/168tq @ crank. You should check your ignition and fix any vaccum hoses that are cracked or old.
What mods does your car have? That power curve isn't smooth at all, almost like there is a miss-fire somewhere. If your car is an auto and without a Y pipe that is what I'd expect. My 87se dynoed 112whp/140wtq with just a KN panel filter and it makes 152hp/168tq @ crank. You should check your ignition and fix any vaccum hoses that are cracked or old.
BTW - Thats to the wheels
02-27-2003, 06:44 PM
#9
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Originally posted by DA-MAX
Thats a great run for your mods!!!
don't be disapointed! get it fixed and maybe you could pull out 130+
Thats a great run for your mods!!!
don't be disapointed! get it fixed and maybe you could pull out 130+
Eric93SEHave you done a full ignition system tune up yet?
Its also possible that there is a problem with one or more injectors.
Its also possible that there is a problem with one or more injectors.
02-27-2003, 06:48 PM
#11
Originally posted by Soul Fly
Get what fixed? My fuel filter? Tune up?
No tune up in a while - I got NGK plugs back in october tho... what all will come in a FULL ignition tune up??
Get what fixed? My fuel filter? Tune up?
No tune up in a while - I got NGK plugs back in october tho... what all will come in a FULL ignition tune up??
Distributor cap/rotor (worn out, shorting out), ignition wires (they can be shorting out), maybe a new coil(you can get one that will put out higher voltage/current).
You can also clean all the ground wires in the engine compartment and on the alternator and battery.
02-27-2003, 07:07 PM
#13
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Join Date: Mar 2002
Posts: 309
Originally posted by eric93SE
Distributor cap/rotor (worn out, shorting out), ignition wires (they can be shorting out), maybe a new coil(you can get one that will put out higher voltage/current).
You can also clean all the ground wires in the engine compartment and on the alternator and battery.
Distributor cap/rotor (worn out, shorting out), ignition wires (they can be shorting out), maybe a new coil(you can get one that will put out higher voltage/current).
You can also clean all the ground wires in the engine compartment and on the alternator and battery.
02-27-2003, 07:10 PM
#14
MSD makes a solid state ignition system for the vg to give a stronger spark. Or you can get an old style coil upgrade.
Get good ignition wires, that give a lifetime guarnetee and are at least 8mm thick insulation.
Get good ignition wires, that give a lifetime guarnetee and are at least 8mm thick insulation.
02-27-2003, 10:13 PM
#19
that's about average for a VG auto.
the curves are very lumpy though.. you've got a problem somewhere. what's weird is how they're in regular patterns though. I'd say you've definitely got some sort of engine problem to cause those. don't know what it is, but it's something. possily a leaky vacuum hose or exhaust leak which causes resonances in the system... it's obviously something based on RPM that's causing the problem.
(a vacuum leak on the engine will do that to some effect, because the leak is only a problem at certain rpm...)
the curves are very lumpy though.. you've got a problem somewhere. what's weird is how they're in regular patterns though. I'd say you've definitely got some sort of engine problem to cause those. don't know what it is, but it's something. possily a leaky vacuum hose or exhaust leak which causes resonances in the system... it's obviously something based on RPM that's causing the problem.
(a vacuum leak on the engine will do that to some effect, because the leak is only a problem at certain rpm...)
02-28-2003, 05:08 AM
#20
Senior Member
Join Date: Mar 2002
Posts: 309
Originally posted by eric93SE
MSD makes a solid state ignition system for the vg to give a stronger spark. Or you can get an old style coil upgrade.
Get good ignition wires, that give a lifetime guarnetee and are at least 8mm thick insulation.
MSD makes a solid state ignition system for the vg to give a stronger spark. Or you can get an old style coil upgrade.
Get good ignition wires, that give a lifetime guarnetee and are at least 8mm thick insulation.
Thanks
02-28-2003, 10:12 AM
#21
Originally posted by 89sks
What do you mean by old style, the cylindrical ones, like Accel makes that are yellow or chrome? Pertronix makes one called Flamethrower that is similar. If these are the ones your talking about I guess you'd have to relocate them somehow to secure them?
Thanks
What do you mean by old style, the cylindrical ones, like Accel makes that are yellow or chrome? Pertronix makes one called Flamethrower that is similar. If these are the ones your talking about I guess you'd have to relocate them somehow to secure them?
Thanks
If you were to get an excel or whatever, then you would just remove the original and put the new one in its place. I would reccomend cleaning all the old connectors on the coil (whether new or old) b/c there is still low voltage feeding the coil and those connectors should be free of corrosion. I think it should be pretty worth while for the performance stand point on the vg.
02-28-2003, 10:21 AM
#22
Originally posted by eric93SE
If you were to get an excel or whatever, then you would just remove the original and put the new one in its place
If you were to get an excel or whatever, then you would just remove the original and put the new one in its place
02-28-2003, 10:40 AM
#23
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Join Date: Mar 2002
Posts: 309
Originally posted by eric93SE
Yup that what I meant, the original coil is just a high voltage transformer. The stuff from MSD is solid state rectifying.
If you were to get an excel or whatever, then you would just remove the original and put the new one in its place. I would reccomend cleaning all the old connectors on the coil (whether new or old) b/c there is still low voltage feeding the coil and those connectors should be free of corrosion. I think it should be pretty worth while for the performance stand point on the vg.
Yup that what I meant, the original coil is just a high voltage transformer. The stuff from MSD is solid state rectifying.
If you were to get an excel or whatever, then you would just remove the original and put the new one in its place. I would reccomend cleaning all the old connectors on the coil (whether new or old) b/c there is still low voltage feeding the coil and those connectors should be free of corrosion. I think it should be pretty worth while for the performance stand point on the vg.
Thanks
02-28-2003, 12:15 PM
#25
Originally posted by DA-MAX
you sure about that?? most single coil ignition systems from Accel to MSD utilize the stock coil, not replace it. the aftermarket coils included in those kits piggyback off the stock coil.
you sure about that?? most single coil ignition systems from Accel to MSD utilize the stock coil, not replace it. the aftermarket coils included in those kits piggyback off the stock coil.
so if anyone (vg) is looking into upgrading their coil then they should do some research.
89sks: The shape shouldnt matter, you have to make it fit
. Just make sure it compatable with you system.
02-28-2003, 12:34 PM
#26
here is an example of a solid state upgrade: http://www.suprastore.com/hkstwinpowig.html
02-28-2003, 12:36 PM
#27
here is an example of a solid state upgrade: http://www.suprastore.com/hkstwinpowig.html
I saw a third gen vg with this unit, he said his fuel economy went up like 2mpg, I dont remember what he said about power.
I saw a third gen vg with this unit, he said his fuel economy went up like 2mpg, I dont remember what he said about power.
02-28-2003, 03:27 PM
#28
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Join Date: Feb 2002
Location: Tampa Bay, Fl
Posts: 605
Originally posted by Matt93SE
that's about average for a VG auto.
that's about average for a VG auto.
02-28-2003, 03:45 PM
#29
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Posts: n/a
GUYS!...I took off the cover over my spark plug wires (not 100% sure what it's called) and unscrewed 2 out of the 3 srews holding that metal cover on. I was gona look at the distributor (i think) to see what was goin on w/ it...but I couldnt get that damn 3rd screw loose - I advanced my timing a weee bit, didnt notice a big difference....
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