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HPA turbo, or money towards RS4 fund ??????


RFredR32
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Hey nice to see a R32 tuner on this forum! I have been looking at turbo and supercharging the R for a few years now and through my research i can safely say that the hpa turbo kit is the most reliable best put together kit on the market and its worth the time and money for a proper job the only down side is the loss of that wonderful exhaust note. Now with the supercharger vf is the only way but im not so confident in the kit as when amd use to do it they added extra stuff to insure the kit ran right and it took them a lot of time now amd are no longer here I don’t know of any company that has done research into reliability they just bolt the kit on and if anything goes wrong come back and we will try and fix it! That’s just what I have gathered over my many hours on the Internet but there are a few more people starting to supercharge there R’s now so I don’t know it up to you!!!! P.S don’t go for the RS4 common as muck.

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I personally would go for a stage 2 VF supercharger that puts out in excess of 350bhp.

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Rated at 350hp, and makes that, but no more.

The VF Stage 3 is rated at 450hp.

Here's the thing. I spent some time on the track in my

FT360 running with a guy with a VF Stage 3, and he couldn't pull

on me at all on the half mile long front straight. Not an inch.

Later on the highway, we did some in gear pulls..

4th gear at 80mph, hit the gas, I pulled about a length and a half

on him, by 120mph.

5th gear at 80mph, hit the gas, I pulled about 5 lengths on him

by 120mph.

6th gear at 80mph, hit the gas.. wasn't even close.

Basically for the VF Stage 3 to hang with even the lowly FT360

he's gotta be a gear lower and shifting all the time.

He consoled himself with the thought that maybe it was just

because we're at high altitude and the turbo isn't affected

as much as the supercharger. Then I talked to a couple folks

from Southern California, who are good friends with each other.

One had a VF Stage 3, the other FT360. They said the results

were exactly the same at sea level. The VF car felt faster because

of the top end rush, but head to head, the FT360 pulled on the VF

car every time in gear, same rpms. Each in their optimal

rev range, about even.

Basically HPA pretty much makes sure that they make their rated

power even on the lowest octane premium fuel available, and

otherwise are generally considered to be under-rated. FT360 makes

more like 400.. FT400 makes closer to 425-450.. and so on.

The only thing I don't like about the FT kits (and true of any

of the really efficient turbo kits) is they just kill the R32's

beautiful exhaust note. They use all that wonderful sound

and pressure to spin the turbine and you just get a big whooshing

sound from the exhaust.

http://thud.us/videos/car-av/r32-hpa-exhaust.wmv

(Anyone who's videoed a stock R32 knows, you'd still be hearing it

from a half mile away).

I'm still working on options to get some of the noise back.

ian

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To the original poster,

The decision you're facing is defintely a hard one, and one you alone can make... It took me a very long time to look at every available option, study and try each, and finally come to my own conclusions!

It's nice to see people like Daemon and Larry chime in here with their direct experience! There is also a wealth of information available on the vortex forum; but the real litmus test is to go out and drive one. It's pretty much guaranteed that even the quickest of test drives will have you convinced!

I can't wait for my install to happen (july/august hopefully!)

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The problem with RS4 is, besides the enormous price tag, that there is as much you can do to improve it's performance. Maybe Milltek's and a ECU upgrade, 30hp more. That's it. Many of you will say that 450 hp is enough, and maybe it is. But what happens when you are on the highway and an R32 FT400-450 just leaves you behind.The best thing about a HPA/HGP turbo R32 is that you can always upgrade it's power, of course if you have the money, and if you get to bi-turbo, believe me that is another leaque that the RS4. And all of these with less money than a new RS4. beerchug.gif

And there is another side of the problem: when you get into a race with the RS4, everybody expects you to win. You are the hunted. When in a turbo R32, you are the hunter, and that is always a win/win situation. Can't wait for my FT.

Nice to see you arround, Ben. 169144-ok.gif

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If all you're after is races with RS4s, then maybe I'm glad you're based in Bucharest!

You just can't compare the two cars - it's not about straight line speed - put a turbo'd or supercharged R32 on a track, whatever track you want, with a standard RS4, and the RS4 will be quicker. Period.

Trust me - I've seen it 169144-ok.gif

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[ QUOTE ]

You just can't compare the two cars - it's not about straight line speed - put a turbo'd or supercharged R32 on a track, whatever track you want, with a standard RS4, and the RS4 will be quicker. Period.

[/ QUOTE ]

shocked.gif are you saying that a standard RS4 will still beat a totally sorted mk4 R32 with HPA FT565 conversion - including with suspension, brakes etc? 169144-ok.gif

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It doesn't matter how much you tweak the suspension on an R32, it still runs a Haldex based 4WD system. One of the reasons the RS4 pulls so much better out of corners (slow or long and fast) is because of the (real) Torsen-based 4WD system.

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Yes, and maybe you didn't drive an MK5 R32 with race Haldex upgrade.Is a different car all together. Combine that with bi-turbo or even just turbo , V3 KW suspension, ARB's and big brakes, and believe me, you will not even see the RS4 in the rear view mirror. Don't forget that R32 is almost 200 kg lighter than RS4. In this case, you are right, you can't compare the 2 cars - RS4 is no game for tuned up R32.

And believe me, you will run against an RS4 on the public road more often than on the track, or at least that's the case in Bucharest, where there are 15 RS4 and counting.

So, you beat the RS4 in drag racing, you beat it running from whatever gear you want, maybe he will have a small chance on the track, depending on the R32 setting, so where is that car so much better to pay that much for it period?

Don't get me wrong, is a great car and maybe I will buy one when I'm done with tunning my cars. Thats all 169144-ok.gif

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I've seen that. Unfortunatelly, is not for sell. My best friend has a new 2007 RS4 and his first thoughts were to buy the supercharger from MTM. They already blown 3 RS4 engines with the SC and they will not sell it at least for the next year or so, if ever. Also SKN wanted to develop a supercharger for the RS4, but they stopped the development process due to the fact that the RS4 internal parts are very very light (in order for a V8 to get to 8400 rpm) and they will not withstand the additional boost. You can check all these with MTM or SKN. So , my friend just settled for the carbon fiber hood from MTM,full Milltek and maybe ceramic brakes. So much for tuning an RS4.

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[ QUOTE ]

put a turbo'd or supercharged R32 on a track, whatever track you want, with a standard RS4, and the RS4 will be quicker. Period.

Trust me - I've seen it 169144-ok.gif

[/ QUOTE ]

according to this on here it's certainly close

7:58 --- 156.652 km/h -- Audi RS4 4.2 V8 FSI, 420 PS/ 1650 kg, Frank Stippler, (10/05)

8:08.62 151.774 km/h -- HGP Golf R32 Turbo Stufe 3, 495 PS/1660 kg

8:09 --- 151.656 km/h – Audi RS4, 420 PS/1728 kg (sport auto 06/06)

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