Originally Posted by MartynJ (Post 10885014)

You'll of course get a lot of opinion based on experience of one or the other, as very few people will have first hand everyday experience of both.
Even those who map them will struggle to tell you as their experience is very short lived.
To be fair you need to compare apples with apples, so if you want a really fair comparison, you need to look at the MDX321H vs SC42 or MDX321T vs SC46.
I have sold a fair few SC range turbos of all sizes and have been very happy with all of them.
Maybe it's time someone dug out their asbestos handed mechanic and ran all 4 turbos on one car on the same day :thumb:

Originally Posted by MartynJ (Post 10885014)

You'll of course get a lot of opinion based on experience of one or the other, as very few people will have first hand everyday experience of both.
Even those who map them will struggle to tell you as their experience is very short lived.
To be fair you need to compare apples with apples, so if you want a really fair comparison, you need to look at the MDX321H vs SC42 or MDX321T vs SC46.
I have sold a fair few SC range turbos of all sizes and have been very happy with all of them.
Maybe it's time someone dug out their asbestos handed mechanic and ran all 4 turbos on one car on the same day :thumb:

Originally Posted by john banks (Post 10886058)

Selling your 2005 STI and buying a 2005 Evo is my honest answer, presently owning neither!

An Evo IX with an exhaust and tune can reach 1.7 bar at 2500 RPM and do 400+ BHP on most dynos, with a stock rev limit of 7600 RPM.

Give it some consideration if you haven't, the power band on the 4G63 with MIVEC is on a different planet to a single scroll EJ207, but doesn't do the burble.

Originally Posted by MartynJ (Post 10886047)

Sure does, in my experience for instance, a good quality uprated inlet hose to the turbo makes a big difference.
On a stock inlet with an SC42 Billet, it took 20% meth to get here.

http://i40.photobucket.com/albums/e2...f/MattSC42.jpg

Replaced the inlet with a silicone uprated one and remapped for VPower only and saw this,

http://i40.photobucket.com/albums/e2...f/MattEwer.jpg

Unfortunately we were ran out of pump pressure meaning the meth map had to wait for a minute. Suspect we'll see 460+ on 20% this time round.

Originally Posted by MadUsa1 (Post 10886271)

Which car is this on? Stock inlet from a newage or classic? What other supporting mods do you have, looks like a good result.

Originally Posted by MartynJ (Post 10884795)

SC42 Billet is an awesome turbo, spooling faster than the sleeve bearing turbo you currently have and making more power to boot !

Originally Posted by The Gaffer (Post 10886482)

Hi,

difficult for me to comment as we designed the SC42 for the 2.0 ltr or 2.1 stroked cars for quick spool, therefore I am biased. ;)

One thing is though it works and its not fussy about what mods are on the car, OK the modded correctly car will be better but on a standard car its still brilliant. :D

To be fair though I have not seen any graphs of the MD.billet. :wonder:

One extra thing is the SC42 is a true direct fit, bolts straight on without the need to chillel lumps off the block or bellhousing, comes with new oil feed pipe, oil drain pipe, water pipes, banjos and washers, also comes with up and down pipe gaskets. :thumb:

As Martyn said earlier a simple upgrade like the inlet pipe for a silicon one, not a cheap one they suck in, a Perrin one or SFS will help as a supporting mod.

cheers
kev

Originally Posted by wrx271 (Post 10886646)

can someone post a graph up on the md321t billet im on the fence with these two turbos sc-md i want one but which one when i speak to tuners they say the md321t is a brilliant turbo but then everyone on here bangs on about the sc42 i defo dont want to be taking chunks out of anything i want a turbo that fits first time will both be like this ? :thumb: