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Superchargers

Posted: Sat Apr 10, 2010 10:03 pm
by dvjones414
Who has superchargers for the B7 RS4 + what gains have been proven?

I cannot find real results of any kits that have been fitted.

MTM
PES
VF

What are the experts views on the kits out there?

RE: Superchargers

Posted: Sun Apr 11, 2010 5:47 pm
by larshs
It's well known that with the MTM kit the gain is 120 hp to 540 hp. 0-100 km/h in 3.9 sec. Torque 560 NM. Don't know anything about PES and VF.

RE: Superchargers

Posted: Mon Apr 12, 2010 10:57 am
by RS4KILLA
check this out mtm all the way
http://www.youtube.com/watch?v=FBkX8GS5FoY

RE: Superchargers

Posted: Mon Apr 12, 2010 8:51 pm
by sonny

Re: RE: Superchargers

Posted: Mon Apr 12, 2010 9:29 pm
by MoRS6+
:shock: :shock: :shock:

Holy moly... awesome!!!

How long will the engine last though?

The light that shines twice as bright...

RE: Re: RE: Superchargers

Posted: Mon Apr 12, 2010 9:36 pm
by ArthurPE
this company, APR, is preparing for beta testing...they have a good rep in the States, and from what I've seen of PES and VF (not impressed), these guys seem to have found the plot...

time from 36 to 96 (use 40 to 100), tell me what you get...I get <7 sec, closer to 6.5 (stock from 4 different tests is 8 flat)

http://www.youtube.com/watch?v=XgHdV3dzkFc

RE: Re: RE: Superchargers

Posted: Mon Apr 12, 2010 9:39 pm
by stumpyrs4
APR known here too - Awesome GTI, Manchester...

RE: Re: RE: Superchargers

Posted: Mon Apr 12, 2010 9:45 pm
by ArthurPE
although at 5 psi a sc may generate >30% more power, say 140 HP or so, 35 to 40% of that is consumed by the blower and never makes it to the wheels...

so a net gain of ~90 HP is good...it's the whole elevation of the torque curve where the real gains are at...
remember, these are 12.5:1 Cr engines, 5 psi (after the intercooler) would be plenty, imo, as long as the cooler had good efficiency...
a solid 510 crank HP would suit me just fine
along with a nice 20% torque boost over the entire rev range :D

Re: RE: Superchargers

Posted: Tue Apr 13, 2010 7:51 am
by psg001
RS4KILLA wrote:check this out mtm all the way
http://www.youtube.com/watch?v=FBkX8GS5FoY
haha, look at it take off at about 1 min 14 secs into the video, it vanishes so fast, you can see the cars on the road plodding along, leaves them like roadrunner!

superchargers are thirsy as f*** too.

RE: Re: RE: Superchargers

Posted: Tue Apr 13, 2010 9:31 am
by caldy

Re: RE: Re: RE: Superchargers

Posted: Tue Apr 13, 2010 6:53 pm
by sonny
WOW!

This pic made me laugh.

Posted: Tue Apr 13, 2010 8:59 pm
by P_G
EEK... That is a horror story and a half.

Posted: Wed Apr 14, 2010 12:39 pm
by sonny
Yes it is, however, it seems the S/C was fine (believe it or not) just the components and techs used. The MTM one does seem to be the better option, however price is somewhat off putting (no where did I out the lotto tickets lol).

Posted: Wed Apr 14, 2010 1:54 pm
by ArthurPE
sonny wrote:Yes it is, however, it seems the S/C was fine (believe it or not) just the components and techs used. The MTM one does seem to be the better option, however price is somewhat off putting (no where did I out the lotto tickets lol).
I did some research on this one, and it seems like it's marginally sized
operates outside it's limits and the eff goes way down, ie, heat of compression and parasitic losses rise

Posted: Wed Apr 14, 2010 3:46 pm
by sonny
Damn, is this the S/C of choice in the states Auther? or do ppl mostly go for the MTM one (im guessing this due to cost)