When to shift

[Seifer780]

Simple question, I think. 2003 A4 1.8t 163whp. NOT the red T, just the ordinary. Stock everything. At what point does the car stop pulling? 5,500 RPM's? 5900 RPM's? Does my question make sense? lol

[Stone825]

Does my question make sense? lol

I don't know for sure but your question is appropriate. At some point the RPM's stray out of the K03's range and it stops pulling as hard.

[Seifer780]

Cause I like doing 0-60's and am trying to find the sweet spot to shift to ensure the quickest time.

[Seifer780]

Looking at the 3rd graph down, it looks like the top of the power band is right at about 5400. Assuming the B6 A4 1.8T non-sport is what I have and it is indeed a K03, then it looks like it would be 5400. Maybe I just answered my own thread?

[biketsai]

I don't personally own a B6, but Im pretty sure it doesnt mean anything if you don't have the red T. It doesnt make any sense why they would put a K03 instead of a K03s in, especially after year 2000. Im pretty sure you have a K03S. Someone please correct me if I am wrong. But the K03 falls on its face at 5000 rpm, so shift around then.

[gq9]

I'd watch 2 fast 2 furious to learn when to shift

[Molotov]

5-5.5k RPMs, Red T means nothing... 99% that wasn't stock on b6a4's

[Molotov]

p.s. Just read your post again.. 163 HP not WHP

[Seifer780]

I always though the ones with the red T's had a bit more hp.

[nein-reis]

I always though the ones with the red T's had a bit more hp.

Noooooooooooooooooooooooo!!! And another Utah dude, come out to any GTG's?

[Seifer780]

The red T does means something, I'm afraid.

"For 2002, Audi upgraded power in the 1.8 Turbo engines to 163 PS (120 kW; 161 bhp) and 190 PS (140 kW; 187 bhp) - the 190 PS variant designated by a red 'T' on the boot lid, with both available with quattro, and in the 2.5 TDI intermediate version to 163 PS (120 kW; 161 bhp)."

http://en.wikipedia.org/wiki/Audi_A4

That is probably the one equipped with the K03S. The S standing for "Sport."



I do not, but I wouldn't mind. Always looking for ways to get more out of the Audi. Currently trying to get the Symphony II +. The one with the AUX IN so I can hook up my MP3 player. Sure, the tape deck can be used but thats like downloading from a T3 connection and filtering it through a dial up connection. Blah. Where are the GTG's?

[EErie B6]

erm, i thought everything from 2001-> had a K03s....

[Dan[FN]6262]

asking when to shift with a K03 is a lot like asking your girlfriend when you should pull out. sooner is better than later.

[Seifer780]

I don't know exactly what it's equipped with, however I'm highly positive that it's a K03 since it's not the sport version.

While jesting comments are fun, unfortunately that lacks helpful information. Sooner rather than later is not necessarily common knowledge and I'm simply trying to learn everything about extracting the most power out of the vehicle that can be gathered. Furthermore, I'm quite impressed with the fuel economy the stock setup gets. Most people have said 5500. Based on the chart that I've seen that I listed on this forum, I gather that the 5500 RPM mark is the ideal spot to shift to get up to speed the quickest. Is that not correct?

[onceover]

All B6's came with a k03s. No B6's ever had a red T badge on t hem. Simple as that.

And yes, 5500 is around the best time to shift.

[HTA A4]

asking when to shift with a K03 is a lot like asking your girlfriend when you should pull out. sooner is better than later.

Hilarious!!!!!! and very true hahahahaha

[Seifer780]

All B6's came with a k03s. No B6's ever had a red T badge on t hem. Simple as that.

And yes, 5500 is around the best time to shift.

So if the B6's never came with a Red T, then why does your tech page contain information that contradicts your statement?

http://www.audizine.com/wiki/index.php?title=B6_A4

[Molotov]

So if the B6's never came with a Red T, then why does your tech page contain information that contradicts your statement?

http://www.audizine.com/wiki/index.php?title=B6_A4

because it's wiki

[texasboy21]

I always felt that 5500 RPM is too high, even though it is the "audizine standard." Personally I shift at 57/5800 into second, 5400 into third, and at 5200 into fourth and fifth. Shifting later than that seems to just blow hot air (>7* increase til 5000 RPMs then about 10+* increase in iat from 5000-6000RPMs), theres no boost and you enter the next gear far too late in the powerband.

[Killerteve]

Though if the OP is talking about a completely stock vehicle I would imagine he could rev till 6k or so without the heatsoak that would accompany flashed vehicles because he would only be running 10-12psi max, where on a stage 1/2 car you would probably see 10-12 psi at redline anyway but it seems worthless compared to the 20ish psi it can hold to around 5k.

[tordern]

hahaha.. omg.. you ask when to shift? seriously? damn dude.. Go get yourself a license..

[diagnosticator]

Simple question, I think. 2003 A4 1.8t 163whp. NOT the red T, just the ordinary. Stock everything. At what point does the car stop pulling? 5,500 RPM's? 5900 RPM's? Does my question make sense? lol

Peak torque is developed from ~1800 > 5500 RPM. But the best shift point is a little higher than the max RPM torque peak speed. There are programs available to calculate the best shift points per gear, based on HP, Torque and some other factors.

[diagnosticator]

All B6's came with a k03s. No B6's ever had a red T badge on t hem. Simple as that.

And yes, 5500 is around the best time to shift.

Not correct. The Euro A4 1.8T Sport has a red T, and 190 hp(PS) stock. (BEX engine code)

[diagnosticator]

The red T does means something, I'm afraid.

"For 2002, Audi upgraded power in the 1.8 Turbo engines to 163 PS (120 kW; 161 bhp) and 190 PS (140 kW; 187 bhp) - the 190 PS variant designated by a red 'T' on the boot lid, with both available with quattro, and in the 2.5 TDI intermediate version to 163 PS (120 kW; 161 bhp)."

http://en.wikipedia.org/wiki/Audi_A4

That is probably the one equipped with the K03S. The S standing for "Sport."



I do not, but I wouldn't mind. Always looking for ways to get more out of the Audi. Currently trying to get the Symphony II +. The one with the AUX IN so I can hook up my MP3 player. Sure, the tape deck can be used but thats like downloading from a T3 connection and filtering it through a dial up connection. Blah. Where are the GTG's?

The Sym II+ does not have a cassette tape, only CD and radio. However, it can play MP3 files recorded to CD.

[sean1.8t]

The red T does means something, I'm afraid.

"For 2002, Audi upgraded power in the 1.8 Turbo engines to 163 PS (120 kW; 161 bhp) and 190 PS (140 kW; 187 bhp) - the 190 PS variant designated by a red 'T' on the boot lid, with both available with quattro, and in the 2.5 TDI intermediate version to 163 PS (120 kW; 161 bhp)."

http://en.wikipedia.org/wiki/Audi_A4

That is probably the one equipped with the K03S. The S standing for "Sport."



I do not, but I wouldn't mind. Always looking for ways to get more out of the Audi. Currently trying to get the Symphony II +. The one with the AUX IN so I can hook up my MP3 player. Sure, the tape deck can be used but thats like downloading from a T3 connection and filtering it through a dial up connection. Blah. Where are the GTG's?

oh man, you've got no clue.... and you're getting you info from wikipedia to boot.

look, as simple as i can put all of this, all B6 A4 sold in the US market have a k03s, and sport 170bhp. no red "T" was given, and even if it was, it would not change the power output of the AMB engine.

and shifting points change per gear. just because you're peak hp is made at 5500rpm, doesn't mean you're going to shift at that in all gears. if you shift at that in 1st you're going to drop down too far out of your powerband and actually have to wait a bit for the k03 to spool. yet, if you shift at 6500rpm in 1st, by 2nd you'll be right in the heart of your powerband.

if you're dying to get the bestest 0-60 times, then do a bunch of them starting off shifting at the highest rpm. record it, then lower your rpm range by 250rpms until you find your fastest time. no answer on the internet will tell you what YOUR car will do at specific elevation and weather conditions. especially since every car's performance is different

[diagnosticator]

Simple question, I think. 2003 A4 1.8t 163whp. NOT the red T, just the ordinary. Stock everything. At what point does the car stop pulling? 5,500 RPM's? 5900 RPM's? Does my question make sense? lol

There are online calculators to determine the best shift points per gear based on HP/torque and peak rpms etc.

http://www.google.com/search?sourcei...int+calculator

[Seifer780]

Thank you everyone who provided helpful information! That's all I was asking. Thank you for not making a big deal out of it. Red T was Euro version, did not know that. I love the car and want to maximize it's potential.

[pkny]

i made the same mistake and ask around when i first got my car. I think the Red T in the US was on the 2002 versions of the 1.8t.
Just to reiterate only the Euro version had the red t accompany with the 190hp. I finally understood it when i read that the 190hp power version had dual intercoolers, one on the passenger and one on the driver side lower vents. The passenger side of my car had a smog pump.

Get a chip and you would be happy.

[MMMB00ST_A4]

I don't know exactly what it's equipped with, however I'm highly positive that it's a K03 since it's not the sport version.

While jesting comments are fun, unfortunately that lacks helpful information. Sooner rather than later is not necessarily common knowledge and I'm simply trying to learn everything about extracting the most power out of the vehicle that can be gathered. Furthermore, I'm quite impressed with the fuel economy the stock setup gets. Most people have said 5500. Based on the chart that I've seen that I listed on this forum, I gather that the 5500 RPM mark is the ideal spot to shift to get up to speed the quickest. Is that not correct?

That is not 100% true. I have a 2002 1.8T quattro with no "Red T" on my boot lid and the turbo that I pulled from the car when the Apr 3+ kit went in was a K03S, not a regular K03..

And my car had dual intercoolers as well, i still have both intercoolers sitting in a box. The turbo i sold about 6 months ago after sitting in the garage for 3 years..

[pkny]

That is not 100% true. I have a 2002 1.8T quattro with no "Red T" on my boot lid and the turbo that I pulled from the car when the Apr 3+ kit went in was a K03S, not a regular K03..

And my car had dual intercoolers as well, i still have both intercoolers sitting in a box. The turbo i sold about 6 months ago after sitting in the garage for 3 years..

Whoa!! Wait a min. Is your car a US model with the dual intercooler?
Where was the smog pump located?

[MMMB00ST_A4]

Whoa!! Wait a min. Is your car a US model with the dual intercooler?
Where was the smog pump located?

Yes, dual intercoolers. To be honest, I don't remember. It has been 3 years...

[MMMB00ST_A4]

hahaha.. omg.. you ask when to shift? seriously? damn dude.. Go get yourself a license..

You should probably also go get a license. And if you were out of highschool yet you would have been able to tell from the context of the post that it's not a simple "I don't know when to shift on my car" post. The topic was more geared towards when his particular turbo runs out of breath in the rpms. Kids.....

[davkav]

The Red T does exist and has a few differences. K03s over the K03, dual side mount intercoolers and I think slightly larger injectors.

K03 gave stock 150 and 163bhp figures where as the K03s put out 190bhp.

The smog pump is located beneath the turbo on the dual side mount intercooler setups.

[pkny]

The Red T does exist and has a few differences. K03s over the K03, dual side mount intercoolers and I think slightly larger injectors.

K03 gave stock 150 and 163bhp figures where as the K03s put out 190bhp.

The smog pump is located beneath the turbo on the dual side mount intercooler setups.

Wasn't All mkIV jettas and B6 A4's equipped with the K03s? The only difference is that the Jetta stated 180hp while the A4 stated 170hp.