Hier ein sehr interessanter Text vom Meister Bob Rawle zum Thema Lateral MD321H Turbo (sehr ähnlich wie MDX 555-400 oder RCM400):
"The 321 series are very good, excellent balance allowing both std and uprated engines to perform well, given supporting and complimentary mods with the right level of mapping they both achieve predicted performance.
On the std 2 litre engine the 321H should be the weapon of choice since that allows 400 bhp to be hit whilst still only using sensible boost, 1.4/1.45 mid range and 1.35 ish at the redline should do it as long as proper fuel is used (talking V Power or Tesco 99). Sti's easier than the WRX obviously. Spool can be wicked, I generally hit the surge line without any trouble and then have to profile response. VERY responsive performance with high 300's of torque being achieved.
The 321T is more suited to either the larger capacity engines or the uprated 2 litre, on larger capacity std engines you can use similar boost to the above and achieve good mid 400's of power and low 400's of torque, on a built engine using 1.8 bar mid and 1.6 redline then greater things are easily to be had dependant on engine spec, associated mods and fuel (again).
I love mapping cars using these, they always do what they say on the tin !! I think the best I've had from a 321H is a smidge under 420 bhp, typically 405/410 seems to come up. Thats on 2 litre std engines mind.
If an owner wants to be more conservative then a very creditable 380 ish bhp can be had from around 1.3 bar boost.
So whats the secret, that would be telling of course, bottom line, a well balanced series of turbo's carefully thought out and implemented to achieve planned objectives. There is no compressor map that I know of available as such, having mapped a significant number of all variety's now though its not really of any interest to me personally, guess it would be if someone was attempting a "me to" though. Makes a change from the "put this with that to get the other" approach that sometimes we mappers struggle with. I'm sure that there are probably very good equivelants coming along out there, I've come across a couple that will probably give these a run but for now the 321 series is still the market leader.
best regards and Happy New Year to all
bob "
Klingt für mich sehr vielversprechend...
Ich werde vermutlich auch eher konservativ von ihm mappen lassen. So irgendwo zwischen 1.35-1.5 Bar.
http://lateralperformance.co.uk/section.…_impreza_turbos