RS4 Supercharger Argument

Your car is sickeningly perfect. I can’t imagine wanting a GTR more than your Sepang RS5. Going nuclear speed is fun, but it’s not like your RS5 is 0-60 mph in 7 seconds and 15.2 seconds in the quarter mile.

You car is as fast as a Ferrari 360 Modena. It’s ridiculous.

And as we’ve seen now with 3 kits that should migrate their way into the RS5 world, for between $12,000 (JHM) and $20,000 (APR) you can be 2014 GTR fast. That’s hard to argue.

I find the GT-Rs to be extremely overrated. I had a nicely modded one, sold it, and don’t miss it a bit. The car was obviously very fast in a straight line (mine was 650ish whp on a mustang), but other then just was completely uninspiring. Anything 6/10s or under and it was pretty boring, and how often do you honestly drive over 6/10ths on the road. The rs4 is so much more enjoyable to drive, has worlds better fit and finish, and with a s/c would be in a relative league of its own for awd “muscle” sedans.

I agree the RS4 stage 2 or 3 would get you a fast sedan that would be more practical for everyday use than any GTR. However, it won’t out perform the GTR even in stage 3 trim.

Not so sure it won’t outperform the GTR. We’ve already seen it pretty much match the GTR in stage 2 trim (and APR’s 1740 kit trim). I mean if you want to post more videos of stripped GTRs on slicks, I can’t speak to that. But if we want to compare these cars in street trim, let’s do so. It will not be easy for the GTR as you’ve outlined it. I’m not even sure what gas you’re talking about in the GTR. I’m strictly looking at pump gas for the RS4. Should we add the race gas to the mix on the RS4? Remember the JHM car is threatening the 10s on 93 with stock fuelling lol. Want to give it upgraded fuelling, and some octane? You’re looking at it trapping 130 MPH, on street tires. This is stage 2 remember. This is not with carbon fiber trunk and hood and slicks and a gutted interior or anything. This is a 4 door 4 seater RS4 that you can drive to work. Stage 3? Sure, lets give it anothher 100 whp or so. You still don’t think it’s going to match or outperform the GTR???

The JHM stage 3 will either max out the V3 Si or get a bigger blower. The V3 is capable of 1150 CFM. You’re talking about 700 whp there…and if they’re looking to go even bigger?

I think we both feel the same way. I had a few cars I was looking at including the GTR and RS5. I chose the M3 as it was the last chance I would have to own the first and last high revving V8 engine BMW will build.

I do on occasion feel it be cool to have a ridiculously fast GTR but something about the fit, finish, and overall balanced performance of the higher end German cars that out weigh the ridiculousness of the GTR…

A few posts back I made a second edit. In that post I linked a sale on a GTR with basically the complete SBD700 package for $51k. I also, linked a deal where you can get a build engine and transmission for $11k which would be good for 800wtq and much more whp. Last link show a car with similar mods plus a stage 2 turbo upgrades ($3k) and it was pumping out more than 900whp and ran 9.1@145mph. So for about $65-70k it is possible to have a 9 second GTR. That, to me, is insane performance!

“What about me” says the iconic E39 M5 (love these cars)

one of my colleagues had one and he hated it for Canada due to RWD and snow, but he really loved the car the rest of the time.

http://zeckhausen.com/images/Cars/BMW/E39/E39_M5_Jason_Tang.JPG

That’s definitely insane, but again we’re talking about a 1 off super cheap car. An RS4 just sold for $6,500 with a bad motor, that JHM could rebuild and stage 3 for you, if we’re talking about one offs. You’d be looking at $41,000. Got a GTR to match it?

:slight_smile:

^^my bad. I meant as an M3/4…

I think the E39 was like a 7500 redline. Jspazz used to own one that looked like it was used for supply runs by Syrian Rebels. He would know how high it revs.

I think it’s a great deal and not super common but definitely not one off. I’m sure within the next few months another GTR will be sold at a price point that would get you close, $5-7k, of this setup.

At $41k that would be great value for a 10 second premium sports sedan… :slight_smile:

Stage 3 and beyond, the goal is not to be a 10 second car.

:o :o :o :o :o :o :o
;D

Hopefully the S5 comes within a few tenths of these times ;D

What do you think the RS5 will do with the JHM cf or APR 1740 setup? 10.8 on pump?

That’s what I’ve been wondering. Lots of RS4 talk lately (understandably), but no discussion of the supercharged RS5, where DSG would seem to be the difference-maker.

only 7000. Dinan took it to 7200, but rod bearings are a constant fear at those piston speeds.

It’s still my winter beater. I drive it all the time and the motor won’t break. I drive the crap out of it. It has 300,000 km on in now. Believe me, it will be a fun winter. Anyone who says rwd sucks for winter has no idea what they are talking about.

Are you guys fucking kidding talking about GTRs? Old models, 2009 and 2010 with tune only have been in the 10s. Don’t kid yourselves.

Trying to find a better picture so you can see what Sakis talking about…it’s true it’s pretty rough lol
http://img.tapatalk.com/d/13/12/07/7una8yge.jpg

Sak I’d race you in it but I think you’d be too embarrassed you’d lose

RS5 should do well. Don’t forget the 1740 is getting maxed out here on this setup, unless APR releases another pulley. So at this level of CFM they’re making X level of power.

Although the stock RS5 with DSG trap a little better than a stock B7 RS4 and run better ET, it’s not dramatic. 2-3 tenths and 2 MPH from what we’ve seen…and that advantage is also due to another 300 RPMs and another 30-40 hp, not just DSG. DSG is good for 1-1.5 tenths here vs a well driven car. That’s eliminated on a supercharged car where you max out a supercharger. Both cars have same displacement and same 1740 at presumably same boost/pulley. So the delta on stock cars isn’t going to transfer to the modified ones if they’re both maxing out a supercharger. Again, the RS4 is at a 30-40 hp disadvantage to the RS5 stock for stock…and when they’re both running the 1740, that disappears.

A great driving powershifting manual will get within a tenth or so of the DSG. If you watched the APR RS4 video, they left pretty much nothing on the table with respect to launching and shifting. So I imagine if APR goes 11.1-11.2 on the RS4, the RS5 will go around 11 flat at the same MPH.

The S5 will be again similar to the RS4, maybe a hair slower than the RS4.

That’s what I think.

JHM hasn’t really shown much if we’re comparing apples to apples.

They went 11.1 @ 125 and also trapped 126…on stock fuelling. Ask any tuner what happens when you’re running out of fuel at high rpms…and if they think they will get more out of the car on improved fuel delivery. It’s a pretty big deal. The tune they wrote for the stage 2 car has them closing things down towards higher RPMs and holding the car back.

What I want to see are as follows

  1. JHM stage 2 (8 PSI intercooled) RS4 with improved fuelling on pump gas and full interior/exhaust

  2. JHM stage 2 (8 PSI intercooled) RS4 with improved fuelling on RACE gas and full interior/exhaust

The race gas times just to see what’s what. We hear lots of crying from people who bitch that not recognizing the APR race gas time is mean. Reality is we’re just comparing all the kits in the setup they all have run…and that is pump gas, full interior.

So for the people who want to stroke APR’s cock all day and call us all haters, fine. So, here’s what JHM does on race gas. They won’t even write a race gas tune is the best part. They’ll just run 100+ octane on the 93 tune. But if those APR times get obliterated, I hope everyone shuts the fuck up about race gas and we can focus on street setups.

The other thing I’d like to see is what JHM could do with more boost. Say 10 or 11 PSI. This would be to shut the retards up who think their 11.12 @ 125 was run with more than 8 PSI. You want to see what happens with more boost? OK here you go.

From talking to JHM though, they seem reeeeeally hesitant to push these cars past 8 PSI. Thinking they know something the other guys don’t. Only JHM owns an RS4 right? And only JHM has torn the motor down on a couple of RS4s after 10,000-20,000 miles of boost, right?

I would be embarrassed to be within 50 metres of you, never mind the car or losing a race.

Isn’t the 4.2V8 in the RS5 a little different than the RS4? I think I remember reading about some updates/refinements made for the final generation of that engine, though I have no idea if this would ultimately have any impact with the supercharger.

In any event, anyone claiming that AR members are APR-haters is clearly off their rocker. This forum has arguably been the MOST hospitable to APR. Arin has what, a +30 karma rating? And APR’s threads on here always get a ton of views/posts, etc. And this forum has also served as an alternative for APR when they run into trouble with Blake/Audizoo (see, e.g., the cornedoutapb/10secs4 saga). All we do here is discuss facts. Some people will never get that.

PS I was getting worried… It had been two whole days since you bragged about one of your dad’s assets. Good to see you snuck that cottage pic in under the wire before the weekend .