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Audi Forums= WACK!
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09-28-2010, 06:55 PM | #23 |
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funny when the 335 came out with tunes.... wasn't everyone trying to track SRT's and a bunch of other cars to prove themselves? Cars that were in complete different classes.
S4 with tunes are doing pretty damn well right now. Just like the 335... give it time and more stuff will come out. Last edited by CASHBY; 09-28-2010 at 07:01 PM.. |
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09-28-2010, 07:01 PM | #24 |
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From what some of my big Audi friends tell me there is just not much more then a tune for the car. They cant just do a pulley upgrade from what I am told because the SC just cant push to much more CFM. APR and others are going to eventually develop aftermarket SC for the car but we are talking about years just like our cars wit upgraded turbos. Not to mention the price for the SC for a RS4 is almost 20 grand and gets it to 570crank but they have almost a 25% dt loss!
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09-28-2010, 07:40 PM | #25 |
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Wow some of you guys fit the BMW D-Dag stereotype exactly with some of these posts...
While I am the biggest BMW fan (as I am a current BMW owner and wouldnt trade my car for anything) and a past audi B6 V8 S4 owner, the New S4 is gonna give you guys a run for your money you wait and see. My nephew just got one and I had a chance to play in that thing and it is F****** awesome, not just straight line performance, but handling is great, car looks beautiful, the interior of the audi makes the 3 series look like it was designed by a kid, those seats are to die for, that bang and olefsun stereo is OMG!!!, the list goes on and on. Yes its expensive, but at the end of the day it is bad A55 bottom line. Just go drive one and tell me it sukcs and its slow. It runs the 1/4 mile just as fast as a E9X M3 stock for stock, dont believe me? Check out the vids on youtube. This car is no joke...
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09-28-2010, 07:41 PM | #26 | |
dat boost doe
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have no idea what the fuck you are talking about
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09-28-2010, 07:46 PM | #27 | |
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If you are looking at performance you should ignore any videos with the MTM piggy. It can't adjust boost like a jb3/procede can do on the n54/n55. The real tuners like APR are doing flashes to unleash the power. The good and bad news for the s4 is that it doesn't see massive midrange gains in tuning(bad) but it sees ridiculous top end improvements(good). This is because the supercharger in stock form uses the majority of boost through the midrange then begins to bleed boost as you get over 5000 rpms. Using all the boost at redline nets Something like a 60 AWHP at 7000 rpms. Since the stage 1 tune doesn't have any hardware changes like a pulley it is not making anymore boost than stock, ~12PSI, however it ismaking that same 12PSI all the way to redline. A pulley upgrade should free up a good bit of midrange power but nothing is concrete at this point. Here is a stock car vs 91 octane tune only APR tune dyno for comparisons. FYI a few stock cars have run 12.8s @ 109-110 mph so shoudl be some decent gains on a software only car at the track. |
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09-28-2010, 07:58 PM | #28 | |
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09-28-2010, 07:58 PM | #29 |
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Ya I was looking at those APR dyno graphs on the Audizine forums and was talking with my S4 buddies. Like you were saying its basically the same till 5k rpms and that is where the car pulls with the tune cause they keep the boost constant instead of tapering down(like you said). But both of my friends that have S4s said from what they read there wont be much of an improvement from a pulley upgrade and thats why they are talking about upgraded SC more then you hear pulley upgrade. BTW I think they are sexy cars and love S4s/RS4s just think they have always been under powered and heavy( Ex. the S5).
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09-28-2010, 08:02 PM | #30 |
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The B5 S4 was the best Audi they had...then ruined it by putting in a V8. Then that ridiculously ugly design and grill they have now. And...they are going back to smaller FI engines in some instances...they just can't figure anything out and have to be losing money or something.
What a way to ruin a brand....miss my 2002 S4. Interior build quality was one of the best.
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09-28-2010, 08:04 PM | #31 |
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That 3.0T (supercharged) engine makes 270hp on the Audi Q7...333hp on the S4 and 370hp on the new Cayenne. Those are factory claims. They adjust the hp with boost control, but the things all have insta-torque.
The boost tapers from around 11 to about 6psi from 5000-7000 (redline) when stock...but holds basically 11 to redline when tuned. There are no gains before that because there are no gains to be had...all the tune(s) will do is let the supercharger run full boost to redline. The dyno numbers show this...moderate gains up until that boost restriction is lifted. Most of the gains below there are attributed to the catback that was on the car in all likelihood. See those dips in the power curve? That's where the boost restriction was stock. Gone when tuned. The car dyno'd 368WHP with tune + exhaust...but that was at APR whose dyno set up reads about 10% more than typical DJ/Mustang dynos (theirs is a hub dyno with a crazy ventillation system in the room). So, 368 WHP should be more like 335WHP on a typical dyno. AWHP mind you...but the car weighs 4000lbs. All around, it's a nice gain from just a tune. Considering it only had boost from 0-5000rpm before tapering off...and considering that was enough to beat the 335i and 335is stock in every test we've seen so far despite the weight disadvantage, you have to hand it to the car. It's putting some great numbers up for stock/near stock. While Audi says the car makes 333hp, that's horseshit...certainly something closer to 360 hp, with about as much torque, all of which is available from 1000rpm up with no lag. Not bad for $46,900. |
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09-28-2010, 08:06 PM | #32 | |
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Kidding right?
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09-28-2010, 08:11 PM | #33 |
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he must be...or he's grossly misinformed.
while the B8 S4 makes nice AWD power with the stock charger, it's pretty close to it's ceiling, thus requiring a stage III build to get really serious. I don't think you'll see an 11 second B8 S4 with the stock charger (TVS1320), but hey I could be wrong. Still, if I'm not, I don't know why that guy thinks this will give a 300lb lighter 335 with RWD and another 50-100whp a run for it's money. Does he mean it will give a run where the full bolt on 335 owner will take the B8 S4 Audi owner's money? If so, he's right. |
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09-28-2010, 08:30 PM | #35 |
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actually Audi blows (superchargers)
hey, anyone here near Lathrop, California (100 miles EAST of San Fran...south of Sacramento) with a nicely modded 335? There's a supercharged 4.2 S4 up there who is looking for a 335 owner for a few friendly runs. JHMOTORSPORTS.com v8@jhmotorsports.com |
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09-28-2010, 09:09 PM | #36 |
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I just re-read that LOL. You know what I meant, the car handles freakin awesome!
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09-28-2010, 09:11 PM | #37 |
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Why? I love audi awd and over the years its got alot better at making it "feel" less heavy than it really is.
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09-28-2010, 09:19 PM | #38 | |
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09-28-2010, 09:21 PM | #39 |
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09-28-2010, 09:55 PM | #41 | |
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The S4's are for sure going to give the 335's a run for their money. |
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09-28-2010, 09:57 PM | #43 | |
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09-28-2010, 11:09 PM | #44 |
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yes because this BMW fanatic has a life and doesn't spend every waking moment posting on this website like you do....beotch
oh and now I have 75 posts so suck it
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