engine was fine when it came out, just had the opportunity to have a built engine:)

This thread is making me want a new turbo.... :norty:

That's part of my point matey. Unless you try you won't know (hence the thread).

Ej2.57 fully rebuild by enginetuner,stage 3 cosworth cams,avc heads,RCM rotated kit gt30 billet rotated,simtec,6speed,mapped by Martin car made 503bhp,1.6 bar on vpower.on 1 bar boost made 420 bhp,,,on classic shape :D:D

Paulo P (Paul), 421bhp, 360lbft, 2005 sti short motor, ported and polished sti 3 cylinder heads, MD321S turbo (hence the low torque due to lag on a 2 litre), nismo 740cc injectors, 76mm inlet under a much modified version 3 inlet manifold system, tubular headers, FMIC, AVCR, Power FC, Z32 MAF + a lot more!

These md321 turbos, the letters after them? What they for, do some produce more torque,fatser acceleration, top end???? I am looking to maintain my standard bottom end for a good while at least whilst funds permit so am lookin at new turbots! Been eyeing up the sc46 7cm as im wanting less lag and more get up and go so to speak, so how do the md series compare for responce, lag etc, trying to build a pic of what peoples thoughts are on them then can concentrate on which one to buy ;)

Cheers guys, by the way mine is 03 blob sti with 3" down pipe in to 2.5" center, all cats removed, pannel filter and an ecu tek remap, got a print out of 345 bhp, not sure on torque off top of head and printout came with car frim previous owner so cant comment on rollers, will have to dig it out!

Craig

Craig.. I was going to go for a md321t but got convinced the sc turbos are a lot better on spool up! Will be at scoobyclinic tmrw for the new turbo n remap by pat! Can't wait...

My car so far is sti04 , 352bhp/338lb torque, standard internals, lateral manifold, Harvey trick up-pipe, full decat system, 740cc lateral injectors, hks filter, fmic, ecutek remap by zen.

Same route as me then! I have also heard alot of good things about the sc46 and it characteristics.

I have just ordered me a set of rcm gt spec headers, will soon be ordering my harvey up pipe, been in contact lately and must say he's a top bloke and full of helpfull and usefull information :thumb:

Need a 3" system from the downpipe back now along with my injectors which should be v shortly then just the turbo which is why im seeking peoples views, although i think my mind is set on the sc46 but im open for other peoples views And opinions :)

Here is MDX321T on our 2.1 with AVCS

V-power

http://imgboot.com/thumbs-large/jura11/dyno2_1.jpg

V-power with 20% Methanol

http://i877.photobucket.com/albums/a...PandTorque.jpg


Here is MDX321T on Steve(Stevesbluewrx) 2.0L STi

http://i49.photobucket.com/albums/f2...x/graphpic.jpg


Jura

Jura some good cases by there lol!

Can you tell me what the mdx321t is capable of maxed out as i beleive the sc46 is 460 or there abouts with all supporting mods, does that sound correct? As if i wanted to further my build and push for slightly more power would the md be able to give anymore?? Just thinking as if i did want to build a motor would i save me buying another turbo as i only ever wanted to acheive 500ish or there abouts and can say i wont be pushing for more as quite simply put, i cant afford to lol (well i could but it will take me effin ages to save)

Also i want it to be a good road car with instant power from the word go rather than lag which is what i have read about the md saying it does not come in to boost until later in the revs where as the sc46 spools lower down and off it goes! I know what ever turbo is in there it will have a degree of lag but i want the quickest spool rather than top end power! I would sacrifise a few bhp for better acceleration as you cant use the top speed on public roads ;) :thumb:

Cheers

Hi there

MDX321T should make 450bhp(at least) on V-power again depends on spec,on methanol depends on more factors(how much methanol,injectors etc),but should be making 480bhp upwards,in our case are limiting factor heads,with better heads like UK STi or JDM Big port heads we should be making on V-power around 460-470bhp and on methanol think is possible 500bhp


I've not seen dyno printout SC46 on 2.0L or 2.1L and due this can't comment how will perform on the 2.0 or 2.1L

Your engine should be OK for 450bhp and more,as you are read here Steve running on his standard internals 480bhp for few months without the problem

We are been in same situation like you are and we are went with Billet T,we are considered like SC46 or S206 from Enginetuner,but we are very happy with T,just think we should go with V instead

In therm of spool,spools great in any gear and with Harvey Up pipe should spool quicker

For 500bhp would go route V or S206 instead..As I said all depends what you are want.


Jura

I previously posted up a thread about the two turbos and most people say if I want a very decent road car, it would be the sc42, cos it will spool up much better than the 321t and 46, but I may end up building myself a 2.1L forged engine after Xmas, so that's why I choosing the 46. I wanna leave a little more room for myself to play with rather than purchasing another turbo next year!

I'm not 100% but sure I've seen a MD321T on 20% meth make around 510bhp.

I find the newer billet over non billet feel like night and day for daily use and faster spool.

Guys,

Forgive me. Just adding this quickly before work. So if anyone has more time to update fully that would be ace.


stealthy55 - 553 / ??? lbft - md321v,motec ecu with knock control,1200cc injectors,rcm headers/exhaust,parallel fuelrails / DSA / David Rowe (there but it lifted off rollers)

R400sub - 503 bhp / ??? lbft - Ej2.57 fully rebuild by enginetuner,stage 3 cosworth cams,avc heads,RCM rotated kit gt30 billet rotated,simtec,6speed,mapped by Martin / Enginetuner on vpower

1) Stevesbluewrx - 482 bhp / 448 lbft
2002 STi (EJ20) / MD321T (BILLET T71) (Sports cat) / Vpower + 18% Meth / CAIK / Surrey Rolling Road / Jollygreenmonster ( Daily Driver)

Paulo P (Paul), 421bhp, 360lbft, 2005 sti short motor, ported and polished sti 3 cylinder heads, MD321S turbo (hence the low torque due to lag on a 2 litre), nismo 740cc injectors, 76mm inlet under a much modified version 3 inlet manifold system, tubular headers, FMIC, AVCR, Power FC, Z32 MAF + a lot more!

2) Deathlyreaper 396/360 / 05 widetrack sti / sc46 / k&n typhoon / decat afterburner / gt spec headers / Harvey uppipe / fmic / dv less / 650cc inj / vpower / apt rollers - race dynamix

3) Henrik / 391bhp / 392 lbft / 2003 WRX / td05-20g, lateral 3 bolt headers, apexi intake, fmic, decat down pipe / v-power + 10% e85 / Simon's delta dash / track-weekend

4) eelz - 389 bhp / 355 ft/lbs , 2003 sti ,TD 05/06 20g Harvey smith hybrid turbo,WMS s/s headers,walbro 255,fpr,550's,fmic,3 port,Harvey smith up-pipe, k&n CAIK, full de-cat, Dyno-dynamics by Enginemapper momentum 99(daily driver)

5) Addi Monster - 352bhp 340lbft classic jdm impreza on standard box ( MORE INFO MATE IF YOU CAN)

6) Scoobyken - 352bhp/338lbft / Sti 04 / standard internals, lateral manifold, Harvey trick up-pipe, full decat system, 740cc lateral injectors, hks filter, fmic, ecutek remap by zen.

7) mickywrx - 329.4/289lb/ft MY94 WRX Standard EJ20, standard ECU, Standard TD05, Standard 380cc injectors, V Power only, 1bar boost, couple of bolt on's, NOT remapped.

Hi jura and thanks for reply, what is the main difference in the md321 range then between the T,V,S etc? I would be wanting the quickest spool as i say its for a road car.

Ken i have also asked about the sc42/46 and again have heard the same and to use the 42 for best responce, tbh i may still end up going this route but the only thing putting me off like u say is the fact that it will restrict me should i wish to extract a little more power from the motor or finaly build my 2.1, but looking at the md range they seem to be pretty responsive with proper mods to support and not a great deal of difference between spool times on this and the 46, looking at these figures on standard blocks people have posted i would say the md range is slightly ahead on powerwise, any other thoughts out there...............

just a question, how do you correct hub dyno figures to compare to RR figures? I have heard of approx. 20% transmition loss between rollers and crank, but think that RR figures correct for this in the final printout and my hub dyno figures dont.

Also - does the same 20% apply for torque loss?

Here are my hub dyno stats anyway as I think I am pussing the limits?


Wayne STI - 309.7 bhp / 300.9 lb/ft @ 1.42 bar, 2008 STI (EJ25) dual AVCS / Andy F TD05-20g / 3" Miltek turbo back (sports cat downpipe) / Japspeed FMIC & Induction / Perrin silicone turbo inlet. Block never split standard everything else. V Power only racedynamix map / PJ Motorsports Dynopack hub dyno (daily driver)


1) Stevesbluewrx - 482 bhp / 448 lbft
2002 STi (EJ20) / MD321T (BILLET T71) (Sports cat) / Vpower + 18% Meth / CAIK / Surrey Rolling Road / Jollygreenmonster ( Daily Driver)

2) Paulo P (Paul), 421bhp, 360lbft, 2005 sti short motor, ported and polished sti 3 cylinder heads, MD321S turbo (hence the low torque due to lag on a 2 litre), nismo 740cc injectors, 76mm inlet under a much modified version 3 inlet manifold system, tubular headers, FMIC, AVCR, Power FC, Z32 MAF + a lot more!

3) Deathlyreaper 396/360 / 05 widetrack sti / sc46 / k&n typhoon / decat afterburner / gt spec headers / Harvey uppipe / fmic / dv less / 650cc inj / vpower / apt rollers - race dynamix

4) Henrik / 391bhp / 392 lbft / 2003 WRX / td05-20g, lateral 3 bolt headers, apexi intake, fmic, decat down pipe / v-power + 10% e85 / Simon's delta dash / track-weekend

5) eelz - 389 bhp / 355 ft/lbs , 2003 sti ,TD 05/06 20g Harvey smith hybrid turbo,WMS s/s headers,walbro 255,fpr,550's,fmic,3 port,Harvey smith up-pipe, k&n CAIK, full de-cat, Dyno-dynamics by Enginemapper momentum 99(daily driver)

6) Addi Monster - 352bhp 340lbft classic jdm impreza on standard box ( MORE INFO MATE IF YOU CAN)

7) Scoobyken - 352bhp/338lbft / Sti 04 / standard internals, lateral manifold, Harvey trick up-pipe, full decat system, 740cc lateral injectors, hks filter, fmic, ecutek remap by zen.

8) mickywrx - 329.4/289lb/ft MY94 WRX Standard EJ20, standard ECU, Standard TD05, Standard 380cc injectors, V Power only, 1bar boost, couple of bolt on's, NOT remapped.

Doobs Scoob - 350.2 / 300lbft / 2000 UK Turbo (EJ20) / VF34 Hybrid / Hyperflow TMIC /VPower / Surrey Rolling Road / JGM. (Daily Drive)

Kas Spec C - 442.1 bhp/400 lbft 2002 S202 (EJ20) /MD321T with 1.4b actuator, FMIC, 750cc, AVCR, EcuTek, Decat, Equal length headers, 2.5" system/Vpower/Surrey Rolling Road/Jollygreenmonster (Standard engine)

Steve I've not seen too on T 500bhp,but still think T can make more power ;)




Jura



Hi there

Billet T will be best for 2.0L or 2.1,V on 2.0L or 2.1L will be laggier than T,not sure how much,S is something between the T and V and this turbo is really laggy on the 2.0L or 2.1L,i've seen only on 2.5L where has been great,this turbo is no longer for sale from Lateral performance.

Really best is try to both turbo and compare them;)


Jura

Just been to scoobyclinic today for turbo n remap.. The original plan for the sc46 was scrapped n gone for the sc42.. The gaffer told me to keep off the 46 til I get my engine done as it will be slightly laggy. My car is now running very well, the car is now a healthy 386bhp/ 360lb tq with a spool up starting around 3000rpm! The gaffer said were maxing out on the ecutek map, so will be looking at the syvecs later on!

So might as well put mine up here :D

Also cleaned up the list abit (guys can we make sure we add into the list rather then just post up your results)

1) Stevesbluewrx - 482 bhp / 448 lbft
2002 STi (EJ20) / MD321T (BILLET T71) (Sports cat) / Vpower + 18% Meth / CAIK / Surrey Rolling Road / Jollygreenmonster ( Daily Driver)

2) MelTypeR - 461bhp / 425 lbft (on V-Power only) 2006 Spec C / Litchfield LM450 (non billet) / 800cc injectors / 3" Miltek De-cat / Hybrid FMIC / SFS 3" intake / Simtek ECU / Mapped by JGM @ Surrey Rolling road (daily driver)

3) Kas Spec C - 442.1 bhp/400 lbft 2002 S202 (EJ20) /MD321T with 1.4b actuator, FMIC, 750cc, AVCR, EcuTek, Decat, Equal length headers, 2.5" system/Vpower/Surrey Rolling Road/Jollygreenmonster (Standard engine)

4) Paulo P (Paul), 421bhp, 360lbft, 2005 sti short motor, ported and polished sti 3 cylinder heads, MD321S turbo (hence the low torque due to lag on a 2 litre), nismo 740cc injectors, 76mm inlet under a much modified version 3 inlet manifold system, tubular headers, FMIC, AVCR, Power FC, Z32 MAF + a lot more!

5) Deathlyreaper 396/360 / 05 widetrack sti / sc46 / k&n typhoon / decat afterburner / gt spec headers / Harvey uppipe / fmic / dv less / 650cc inj / vpower / apt rollers - race dynamix

6) Henrik / 391bhp / 392 lbft / 2003 WRX / td05-20g, lateral 3 bolt headers, apexi intake, fmic, decat down pipe / v-power + 10% e85 / Simon's delta dash / track-weekend

7) eelz - 389 bhp / 355 ft/lbs , 2003 sti ,TD 05/06 20g Harvey smith hybrid turbo,WMS s/s headers,walbro 255,fpr,550's,fmic,3 port,Harvey smith up-pipe, k&n CAIK, full de-cat, Dyno-dynamics by Enginemapper momentum 99(daily driver)

8) Addi Monster - 352bhp 340lbft classic jdm impreza on standard box ( MORE INFO MATE IF YOU CAN)

9) Scoobyken - 352bhp/338lbft / Sti 04 / standard internals, lateral manifold, Harvey trick up-pipe, full decat system, 740cc lateral injectors, hks filter, fmic, ecutek remap by zen.

10) Doobs Scoob - 350.2 / 300lbft / 2000 UK Turbo (EJ20) / VF34 Hybrid / Hyperflow TMIC /VPower / Surrey Rolling Road / JGM. (Daily Drive)

11) mickywrx - 329.4/289lb/ft MY94 WRX Standard EJ20, standard ECU, Standard TD05, Standard 380cc injectors, V Power only, 1bar boost, couple of bolt on's, NOT remapped.

12) Wayne STI - 309.7 bhp / 300.9 lb/ft @ 1.42 bar, 2008 STI (EJ25) dual AVCS / Andy F TD05-20g / 3" Miltek turbo back (sports cat downpipe) / Japspeed FMIC & Induction / Perrin silicone turbo inlet. Block never split standard everything else. V Power only racedynamix map / PJ Motorsports Dynopack hub dyno (daily driver)

Mel

1) Stevesbluewrx - 482 bhp / 448 lbft
2002 STi (EJ20) / MD321T (BILLET T71) (Sports cat) / Vpower + 18% Meth / CAIK / Surrey Rolling Road / Jollygreenmonster ( Daily Driver)

2) MelTypeR - 461bhp / 425 lbft (on V-Power only) 2006 Spec C / Litchfield LM450 (non billet) / 800cc injectors / 3" Miltek De-cat / Hybrid FMIC / SFS 3" intake / Simtek ECU / Mapped by JGM @ Surrey Rolling road (daily driver)

3) Blue by You - 443/428, 2005 Sti, EJ20 stock internals, SC46, Perrin FMIC, 650cc, Syvecs, 20% meth, Milltek 3" decat, RCM headers, mapped by Racedynamix, RCM dyno, daily drive + track

4) Kas Spec C - 442.1 bhp/400 lbft 2002 S202 (EJ20) /MD321T with 1.4b actuator, FMIC, 750cc, AVCR, EcuTek, Decat, Equal length headers, 2.5" system/Vpower/Surrey Rolling Road/Jollygreenmonster (Standard engine)

5) Paulo P (Paul), 421bhp, 360lbft, 2005 sti short motor, ported and polished sti 3 cylinder heads, MD321S turbo (hence the low torque due to lag on a 2 litre), nismo 740cc injectors, 76mm inlet under a much modified version 3 inlet manifold system, tubular headers, FMIC, AVCR, Power FC, Z32 MAF + a lot more!

6) Deathlyreaper 396/360 / 05 widetrack sti / sc46 / k&n typhoon / decat afterburner / gt spec headers / Harvey uppipe / fmic / dv less / 650cc inj / vpower / apt rollers - race dynamix

7) Henrik / 391bhp / 392 lbft / 2003 WRX / td05-20g, lateral 3 bolt headers, apexi intake, fmic, decat down pipe / v-power + 10% e85 / Simon's delta dash / track-weekend

8) eelz - 389 bhp / 355 ft/lbs , 2003 sti ,TD 05/06 20g Harvey smith hybrid turbo,WMS s/s headers,walbro 255,fpr,550's,fmic,3 port,Harvey smith up-pipe, k&n CAIK, full de-cat, Dyno-dynamics by Enginemapper momentum 99(daily driver)

9) Addi Monster - 352bhp 340lbft classic jdm impreza on standard box ( MORE INFO MATE IF YOU CAN)

10) Scoobyken - 352bhp/338lbft / Sti 04 / standard internals, lateral manifold, Harvey trick up-pipe, full decat system, 740cc lateral injectors, hks filter, fmic, ecutek remap by zen.

11) Doobs Scoob - 350.2 / 300lbft / 2000 UK Turbo (EJ20) / VF34 Hybrid / Hyperflow TMIC /VPower / Surrey Rolling Road / JGM. (Daily Drive)

12) mickywrx - 329.4/289lb/ft MY94 WRX Standard EJ20, standard ECU, Standard TD05, Standard 380cc injectors, V Power only, 1bar boost, couple of bolt on's, NOT remapped.

13) Wayne STI - 309.7 bhp / 300.9 lb/ft @ 1.42 bar, 2008 STI (EJ25) dual AVCS / Andy F TD05-20g / 3" Miltek turbo back (sports cat downpipe) / Japspeed FMIC & Induction / Perrin silicone turbo inlet. Block never split standard everything else. V Power only racedynamix map / PJ Motorsports Dynopack hub dyno (daily driver)

1) Stevesbluewrx - 482 bhp / 448 lbft
2002 STi (EJ20) / MD321T (BILLET T71) (Sports cat) / Vpower + 18% Meth / CAIK / Surrey Rolling Road / Jollygreenmonster ( Daily Driver)

2) MelTypeR - 461bhp / 425 lbft (on V-Power only) 2006 Spec C / Litchfield LM450 (non billet) / 800cc injectors / 3" Miltek De-cat / Hybrid FMIC / SFS 3" intake / Simtek ECU / Mapped by JGM @ Surrey Rolling road (daily driver)

3) Blue by You - 443/428, 2005 Sti, EJ20 stock internals, SC46, Perrin FMIC, 650cc, Syvecs, 20% meth, Milltek 3" decat, RCM headers, mapped by Racedynamix, RCM dyno, daily drive + track

4) Kas Spec C - 442.1 bhp/400 lbft 2002 S202 (EJ20) /MD321T with 1.4b actuator, FMIC, 750cc, AVCR, EcuTek, Decat, Equal length headers, 2.5" system/Vpower/Surrey Rolling Road/Jollygreenmonster (Standard engine)

5) Paulo P (Paul), 421bhp, 360lbft, 2005 sti short motor, ported and polished sti 3 cylinder heads, MD321S turbo (hence the low torque due to lag on a 2 litre), nismo 740cc injectors, 76mm inlet under a much modified version 3 inlet manifold system, tubular headers, FMIC, AVCR, Power FC, Z32 MAF + a lot more!

6) Jayallen - 404 bhp / 370 lbft @1.5bar /2002 STi (stock EG20) / Andy F TD05 20G / FMIC / RCM Cone Filter / Full De-catted 3" System / Surrey Rolling Road / Duncan Graham( Was a Daily Driver)

7) Deathlyreaper 396/360 / 05 widetrack sti / sc46 / k&n typhoon / decat afterburner / gt spec headers / Harvey uppipe / fmic / dv less / 650cc inj / vpower / apt rollers - race dynamix

8) Henrik / 391bhp / 392 lbft / 2003 WRX / td05-20g, lateral 3 bolt headers, apexi intake, fmic, decat down pipe / v-power + 10% e85 / Simon's delta dash / track-weekend

9) eelz - 389 bhp / 355 ft/lbs , 2003 sti ,TD 05/06 20g Harvey smith hybrid turbo,WMS s/s headers,walbro 255,fpr,550's,fmic,3 port,Harvey smith up-pipe, k&n CAIK, full de-cat, Dyno-dynamics by Enginemapper momentum 99(daily driver)

10) Addi Monster - 352bhp 340lbft classic jdm impreza on standard box ( MORE INFO MATE IF YOU CAN)

11) Scoobyken - 352bhp/338lbft / Sti 04 / standard internals, lateral manifold, Harvey trick up-pipe, full decat system, 740cc lateral injectors, hks filter, fmic, ecutek remap by zen.

12) Doobs Scoob - 350.2 / 300lbft / 2000 UK Turbo (EJ20) / VF34 Hybrid / Hyperflow TMIC /VPower / Surrey Rolling Road / JGM. (Daily Drive)

13) mickywrx - 329.4/289lb/ft MY94 WRX Standard EJ20, standard ECU, Standard TD05, Standard 380cc injectors, V Power only, 1bar boost, couple of bolt on's, NOT remapped.

14) Wayne STI - 309.7 bhp / 300.9 lb/ft @ 1.42 bar, 2008 STI (EJ25) dual AVCS / Andy F TD05-20g / 3" Miltek turbo back (sports cat downpipe) / Japspeed FMIC & Induction / Perrin silicone turbo inlet. Block never split standard everything else. V Power only racedynamix map / PJ Motorsports Dynopack hub dyno (daily driver)

jd5217 - 435bhp / 390lbft / sti04uk / 2.0 ltr standard internals / MD195S / gt spec manifold / APS decat / 650cc inj fpr / fmic / simtek / 97 octane & 16% meth (no vpower available)

Still running fine after 5+ years

Nice :thumb: probably a good idea to know how long the others have been running for too ;)

TX.

& driving style...

Mines been running over 400bhp for 3.5 years almost. 450+ for 2 years and 2 months. :D

My daily driver Kas. She gets a good blast when its needed which is about 3/4 times a week. :thumb:

Next.........

Well this was last weekend :D

http://i92.photobucket.com/albums/l2...yhillclimb.jpg

Within the law of course :smug: