Superchargers

[warnhammar]

Hey,

Have been researching superchargers online and can only see two options really; MTM kit or APR kit.

The APR kit looks fantastic and the quality and price seem the best. I can't find much information from people who have actually installed the kit though.

Anybody on here following the same thought chain and have you heard anything about the APR kit?

Would you also need to update the clutch at the same time?

Jon

[S4Player]

I wouldn't go near the apr kit I think the numbers they quote are miles out performance wise!plus is quite pricey! I took the plunge and went pes with some Mrc tuning magic the thing is unreal the dyno numbers are great yeh but the performance is superb sub 4seconds 0-60 still do an Arthur test on the new supercharger old blower managed it in 6.6 seconds! Clutch wise I'm using the sachs clutch and flywheel and I can't fault it

[Rick_RS4]

i read the yanks didnt rate the pes kit, i think mrc came up in the thread (in a good way) and that they were still testing, but the yanks said it was like a hairdryer,

still not convinced by the price, nitrous an some large tanks will give you 100 bhp for a fraction of the cost

[S4Player]

The yanks don't rate it at all your right but we don't live in America and we have Mrc they don't as I said Mrc tuning magic made the kit work! It's pes hardware which Mrc have completely customised to make it suit their criteria and standards and it's the Mrc tune that makes the kit superb it's 6000usd cheaper than apr and miles cheaper than Mtm yet makes more torque and more bhp! Rick I'll let you drive my car then you'll be convinced I think I mentioned before to you I thought it was overpriced due to it being a kit for an rs4 but after driving it I've came realise that it's been worth every penny

[Rick_RS4]

The yanks don't rate it at all your right but we don't live in America and we have Mrc they don't as I said Mrc tuning magic made the kit work! It's pes hardware which Mrc have completely customised to make it suit their criteria and standards and it's the Mrc tune that makes the kit superb it's 6000usd cheaper than apr and miles cheaper than Mtm yet makes more torque and more bhp! Rick I'll let you drive my car then you'll be convinced I think I mentioned before to you I thought it was overpriced due to it being a kit for an rs4 but after driving it I've came realise that it's been worth every penny

dont get me wrong, i bet its the balls and sounds amazing too, i just cant believe its half the price of the car for 100bhp or so,

[RS4POWER]

DannyRS4- I am glad your s/c application is working for you. The POS tune is garbage, we all know that especially in the states. Good to see MRC be able to get solid gains out of it. Might as well call is MRC S/C.

However, you all should become aware that the POS R8 removed its S/C due to leaks around fittings/elbows. Leaks would be fixed only to resurface a month later. A POS B6 S4 had its motor blow up due to intercooler leaking in chamber #1.

Other than that you also have to worry about performance in the summer where these units are known to heatsoak and blow hot air in the motor.
They run out of breath up top (not sure about the m112, has to be better) and in the end the gains are minimal out in the real world where you'll be enjoying it. If you can stop every two blocks and put ice on the manifold then go for it. If not I would look at more efficient units.

APR/MTM look good but are pricey. There are also some centrifigal application [novidem (and jhm in development)] that will be cheaper and I believe a better match to this motor. Less stress and more power on demand.

[Ice_Coffee]

dont get me wrong, i bet its the balls and sounds amazing too, i just cant believe its half the price of the car for 100bhp or so,

Danny had spent more on mods than I did on my whole car, tbh it's probably more than he spent on his car too.

[Doug_S2]

Danny does not have the 90 charger. He has the bigger one, the 112. If you don't play with cams you blow the air straight out the overlap so it runs hot and weak. All the other tunes have ran with limited throttle so never ran to the full potential. Heatsoak is always an issue. The bonnet scoops are not just to make some kits fit. It is to cool the manifold casting. You can only compare kits when you see results. There is a rotrex kit in development as well.

[warnhammar]

It may be that MRC have customised the kit to make it better but all the pictures I saw of US installed kits looked really messy.

Didn't really like the look of the connectors and elbows they used and read some real horror stories from people who had it done. What is the price of the PES kit?

I believe the ARP kit is circa 12k GBP and it looks well built and engineered.

[adsgreen]

A POS B6 S4 had its motor blow up due to intercooler leaking in chamber #1.

I don't understand this comment - how can a leaky air chargecooler (which im guessing from using the term intercooler) affect any particular cylinder? Not sure how it would make blow up as if it were leaky the engine would beveunning rich or you'd hope the air charge temp sensor would pick it up and it reduce timing.

[Doug_S2]

Water cooled charge cooler sits in the inlet manifold

[adsgreen]

Ah got it.
One of my pet hates is the misuse of intercooler/chargecooler terminology

[S4Player]

I don't wanna sound as if I'm saying hey go pes the rest aren't any good me and doug know the pes kit has took alot of time and 'tweaking' to make it get to where it is just now it's not a straight out the box bolt on kit, would you say that's a fair statement doug? I cost myself more money because i went with the m90 blower due to the bigger m112 not being an option at the time so I've effectively payed for two installs I think now you could spec m112 and it will cost you around 13k usd I think apr is around 18 also the risk involved with apr is that no one in the I'm has tried it so no-one knows what it does! I've took all the risk and went pes and doug and the Mrc Gang have spent the last five-six months on my car as I said making the kit fit their criteria and high standards and the results speak for themselves! As for nos vs supercharger wheres the real world comparison? Supercharger is accessible 24/7 nos on the other hand is for the track and barely useable unless you fancy changing out engines and for the record I'm fitting nos also most likely end of this month all depends on whether I go ahead with ceramic brakes

[S4Player]

Should have stated nos will be for the strip and will be used to help clean out the intakes every now and then