350 rwhp on a A4 with a Cam, I was expecting more
02-23-2005, 01:09 PM
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350 rwhp on a A4 with a Cam, I was expecting more My car (2000 WS6 Trans Am A4) was dynoed on an eddie current dyno at 349.8 rwhp, I was expecting around 370 to 380. Here are my mods.
1) Custom Cam 221/223 112 lsa. (with 918 springs, ls6 oil pump, HP chain)
2) Mac mid-length headers with cats
3) flowmaster
4) SLP lid with K&N filter
5) 2800 PI vig converter with custom shift kit
6) LS1 edit
7) new NGK plugs and taylor thundervolt wires
a) if automatic cars dyno less, does that make them slower?
b) Will I benifit more with the ls6 intake?
c) Are the MAC cats proved "crap"?
D) Do you think I will pick-up 10 RWHP by doing the "free mods", i.e. TB bypass, ram air, cut the egr tube, port the tb?
My car seems alot faster before the mods. I am only 20 rwhp off my minimum target, so I just wanted to know what to do.
1) Custom Cam 221/223 112 lsa. (with 918 springs, ls6 oil pump, HP chain)
2) Mac mid-length headers with cats
3) flowmaster
4) SLP lid with K&N filter
5) 2800 PI vig converter with custom shift kit
6) LS1 edit
7) new NGK plugs and taylor thundervolt wires
a) if automatic cars dyno less, does that make them slower?
b) Will I benifit more with the ls6 intake?
c) Are the MAC cats proved "crap"?
D) Do you think I will pick-up 10 RWHP by doing the "free mods", i.e. TB bypass, ram air, cut the egr tube, port the tb?
My car seems alot faster before the mods. I am only 20 rwhp off my minimum target, so I just wanted to know what to do.
02-23-2005, 01:14 PM
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I'd say get the LS6 intake and get rid of the cats and you will pick up your extra 20rwhp. Maybe even change your catback also, I'm not to sure how well the Flowmaster performs.
02-23-2005, 01:15 PM
#3
first off, those are good numbers. now heres more answers
a) yes, a4 cars do not dyno as well as m6 cars, but that doesn't necessarily make them slower
b) yes, you will benefit from the ls6 intake it will let the car breathe more..
c) if you get LT headers, you will benefit (like kooks)
with this alone you will be doing better.. and don't get upset about your numbers, your numbers are good for an a4 car that has a mild cam and isn't a full bolt on car yet. Good luck and i hope this helps a little
-stephanie
a) yes, a4 cars do not dyno as well as m6 cars, but that doesn't necessarily make them slower
b) yes, you will benefit from the ls6 intake it will let the car breathe more..
c) if you get LT headers, you will benefit (like kooks)
with this alone you will be doing better.. and don't get upset about your numbers, your numbers are good for an a4 car that has a mild cam and isn't a full bolt on car yet. Good luck and i hope this helps a little
-stephanie
02-23-2005, 03:15 PM
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Flowmaster is not well thought of. Macs should not hold
down your peak HP (though cats will, might look for a
MAC ORY and save the catted, for inspections if any) but
do not build out midband torque like long tubes. The Vig
I think is not super efficient which steals from HP but it
is a solid street converter. If you locked it then you would
have a better idea of the motor HP. Since you don't mention
I am assuming unlocked?
350 RWHP from a, what, 325 FWHP rated car is a pretty
respectable improvement I think.
down your peak HP (though cats will, might look for a
MAC ORY and save the catted, for inspections if any) but
do not build out midband torque like long tubes. The Vig
I think is not super efficient which steals from HP but it
is a solid street converter. If you locked it then you would
have a better idea of the motor HP. Since you don't mention
I am assuming unlocked?
350 RWHP from a, what, 325 FWHP rated car is a pretty
respectable improvement I think.
02-23-2005, 03:30 PM
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Originally Posted by RC_Y2KWS6TA
My car (2000 WS6 Trans Am A4) was dynoed on an eddie current dyno at 349.8 rwhp, I was expecting around 370 to 380. Here are my mods.
1) Custom Cam 221/223 112 lsa. (with 918 springs, ls6 oil pump, HP chain)
2) Mac mid-length headers with cats
3) flowmaster
4) SLP lid with K&N filter
5) 2800 PI vig converter with custom shift kit
6) LS1 edit
7) new NGK plugs and taylor thundervolt wires
a) if automatic cars dyno less, does that make them slower?
b) Will I benifit more with the ls6 intake?
c) Are the MAC cats proved "crap"?
D) Do you think I will pick-up 10 RWHP by doing the "free mods", i.e. TB bypass, ram air, cut the egr tube, port the tb?
My car seems alot faster before the mods. I am only 20 rwhp off my minimum target, so I just wanted to know what to do.
1) Custom Cam 221/223 112 lsa. (with 918 springs, ls6 oil pump, HP chain)
2) Mac mid-length headers with cats
3) flowmaster
4) SLP lid with K&N filter
5) 2800 PI vig converter with custom shift kit
6) LS1 edit
7) new NGK plugs and taylor thundervolt wires
a) if automatic cars dyno less, does that make them slower?
b) Will I benifit more with the ls6 intake?
c) Are the MAC cats proved "crap"?
D) Do you think I will pick-up 10 RWHP by doing the "free mods", i.e. TB bypass, ram air, cut the egr tube, port the tb?
My car seems alot faster before the mods. I am only 20 rwhp off my minimum target, so I just wanted to know what to do.
02-23-2005, 04:19 PM
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Anyone know where to get a MAC ORY (I am assuming ORY means y-pipe without cats)? Does mac sell them without the headers? Will have to delete the rear O2 signal though the LS1 edit?
This car is already loud with the cam and headers. If I remove the cats I am assuming is going to **** off the neighbors even more...
This car is already loud with the cam and headers. If I remove the cats I am assuming is going to **** off the neighbors even more...
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02-24-2005, 12:21 PM
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Originally Posted by RC_Y2KWS6TA
Anyone know where to get a MAC ORY (I am assuming ORY means y-pipe without cats)? Does mac sell them without the headers? Will have to delete the rear O2 signal though the LS1 edit?
This car is already loud with the cam and headers. If I remove the cats I am assuming is going to **** off the neighbors even more...
This car is already loud with the cam and headers. If I remove the cats I am assuming is going to **** off the neighbors even more...
02-24-2005, 12:40 PM
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I have a similar set up like yours.I would not take the cats off and run an oyp. However, I would buy some more cats (Magnaflow corsound cats) and have them installed. Do the free mods, add an ls6 intake and get a different muffler. I have macs withe the oyp and it has rasp like crazy. I will be putting magnaflow cats on. Also, what gears do you have? I would diffinitely install some 3.73's. I know alot of people on here say you don't need gears if you have a converter, but it will feel sluggish until you install the gears to bring back some pep.
02-27-2005, 12:57 PM
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If you wanna maximize the effectiveness of the cam. Install Longtubes, LS6 Intake, and ditch the Flowmasters. Flowmasters may sound good, but they don't flow very well at all. I'd go with a Magnaflow instead. Doing the free mods will help too.
I would keep the cats though. IMO, 5-8 rwhp doesn't justify not having them.
And yes, the Torque Converter will eat up some HP, but it doesn't mean the car is any slower.
I would keep the cats though. IMO, 5-8 rwhp doesn't justify not having them.
And yes, the Torque Converter will eat up some HP, but it doesn't mean the car is any slower.
02-27-2005, 04:36 PM
#12
Originally Posted by RC_Y2KWS6TA
My car (2000 WS6 Trans Am A4) was dynoed on an eddie current dyno at 349.8 rwhp, I was expecting around 370 to 380. Here are my mods.
1) Custom Cam 221/223 112 lsa. (with 918 springs, ls6 oil pump, HP chain)
2) Mac mid-length headers with cats
3) flowmaster
4) SLP lid with K&N filter
5) 2800 PI vig converter with custom shift kit
6) LS1 edit
7) new NGK plugs and taylor thundervolt wires
a) if automatic cars dyno less, does that make them slower?
b) Will I benifit more with the ls6 intake?
c) Are the MAC cats proved "crap"?
D) Do you think I will pick-up 10 RWHP by doing the "free mods", i.e. TB bypass, ram air, cut the egr tube, port the tb?
My car seems alot faster before the mods. I am only 20 rwhp off my minimum target, so I just wanted to know what to do.
1) Custom Cam 221/223 112 lsa. (with 918 springs, ls6 oil pump, HP chain)
2) Mac mid-length headers with cats
3) flowmaster
4) SLP lid with K&N filter
5) 2800 PI vig converter with custom shift kit
6) LS1 edit
7) new NGK plugs and taylor thundervolt wires
a) if automatic cars dyno less, does that make them slower?
b) Will I benifit more with the ls6 intake?
c) Are the MAC cats proved "crap"?
D) Do you think I will pick-up 10 RWHP by doing the "free mods", i.e. TB bypass, ram air, cut the egr tube, port the tb?
My car seems alot faster before the mods. I am only 20 rwhp off my minimum target, so I just wanted to know what to do.
02-27-2005, 04:37 PM
#13
autos are generally faster at the dragstrip for whatever reasons... around here almost every drag car has an auto, and a stalled auto beats a m6 everytime, however they are a lil slower from a roll... dont quite take off the way an m6 does from a 50 punch.
02-28-2005, 06:44 PM
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My advice would be not to focus on peak HP numbers but rather average HP from 3000RPM on. Ppl. who focus on peak numbers alone are sadly misguided. An A4 should have a good even spread of TQ to utilise the lesser gears more effectively, unlike an M6. Yet with a stall you can compromise this to focus on TQ within a narror RPM band.
So given you have a 2800RPM converter, look to average power gains from 3000RPM up till your shift RPM. The more average power you have to faster you will go at the track.
Maximise your TQ over your entire power band, not at peak HP. Finally, don't say its crap because a computer tells you. Take it to the track to measure real world performance. Leave the dyno for those that talk and don't walk.
So given you have a 2800RPM converter, look to average power gains from 3000RPM up till your shift RPM. The more average power you have to faster you will go at the track.
Maximise your TQ over your entire power band, not at peak HP. Finally, don't say its crap because a computer tells you. Take it to the track to measure real world performance. Leave the dyno for those that talk and don't walk.
03-02-2005, 04:14 PM
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Originally Posted by MNR-0
My advice would be not to focus on peak HP numbers but rather average HP from 3000RPM on. Ppl. who focus on peak numbers alone are sadly misguided. An A4 should have a good even spread of TQ to utilise the lesser gears more effectively, unlike an M6. Yet with a stall you can compromise this to focus on TQ within a narror RPM band.
So given you have a 2800RPM converter, look to average power gains from 3000RPM up till your shift RPM. The more average power you have to faster you will go at the track.
Maximise your TQ over your entire power band, not at peak HP. Finally, don't say its crap because a computer tells you. Take it to the track to measure real world performance. Leave the dyno for those that talk and don't walk.
So given you have a 2800RPM converter, look to average power gains from 3000RPM up till your shift RPM. The more average power you have to faster you will go at the track.
Maximise your TQ over your entire power band, not at peak HP. Finally, don't say its crap because a computer tells you. Take it to the track to measure real world performance. Leave the dyno for those that talk and don't walk.
Perfectly said.
03-03-2005, 03:01 PM
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Let the car breath and fart better and you should be making quite a bit more power. You should be making AT LEAST 20rwhp more than me(I have a cam only LT1). And dyno numbers don't mean that much, they are used more for tuning. Look at me for example, I don't think you see too many 350rwhp M6 cars running 12.0 without slicks(I am/was on Nitto DRs).
03-03-2005, 03:17 PM
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Originally Posted by RC_Y2KWS6TA
My car (2000 WS6 Trans Am A4) was dynoed on an eddie current dyno at 349.8 rwhp, I was expecting around 370 to 380. Here are my mods.
1) Custom Cam 221/223 112 lsa. (with 918 springs, ls6 oil pump, HP chain)
2) Mac mid-length headers with cats
3) flowmaster
4) SLP lid with K&N filter
5) 2800 PI vig converter with custom shift kit
6) LS1 edit
7) new NGK plugs and taylor thundervolt wires
a) if automatic cars dyno less, does that make them slower?
b) Will I benifit more with the ls6 intake?
c) Are the MAC cats proved "crap"?
D) Do you think I will pick-up 10 RWHP by doing the "free mods", i.e. TB bypass, ram air, cut the egr tube, port the tb?
My car seems alot faster before the mods. I am only 20 rwhp off my minimum target, so I just wanted to know what to do.
1) Custom Cam 221/223 112 lsa. (with 918 springs, ls6 oil pump, HP chain)
2) Mac mid-length headers with cats
3) flowmaster
4) SLP lid with K&N filter
5) 2800 PI vig converter with custom shift kit
6) LS1 edit
7) new NGK plugs and taylor thundervolt wires
a) if automatic cars dyno less, does that make them slower?
b) Will I benifit more with the ls6 intake?
c) Are the MAC cats proved "crap"?
D) Do you think I will pick-up 10 RWHP by doing the "free mods", i.e. TB bypass, ram air, cut the egr tube, port the tb?
My car seems alot faster before the mods. I am only 20 rwhp off my minimum target, so I just wanted to know what to do.
