Explain the MD321 turbo?
06 January 2008, 01:18 PM
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06 January 2008, 01:27 PM
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06 January 2008, 04:24 PM
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07 January 2008, 12:39 PM
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07 January 2008, 01:11 PM
#129
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07 January 2008, 03:53 PM
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Nope my 321T runs a standard size prodrive silicone inlet from Mark. You do need a silcone pipe though. We first ran mine on the standard inlet pipe and car would not hold more than 1.5 bar over 6k revs, changing it to the sicone pipe solved the problem and it now runs 2 bar to the red line with no issues.
07 January 2008, 04:54 PM
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i may have missed something here but i was under the impresion that the only difference in the h and the t was the size of the inlet.i thought the h had the standered inlet and the t had the bigger 3in inlet.
08 January 2008, 07:08 PM
#135
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Nope my 321T runs a standard size prodrive silicone inlet from Mark. You do need a silcone pipe though. We first ran mine on the standard inlet pipe and car would not hold more than 1.5 bar over 6k revs, changing it to the sicone pipe solved the problem and it now runs 2 bar to the red line with no issues.
08 January 2008, 07:49 PM
#137
Interesting. I was thinking about getting one of these myself because I'm on my 3rd OE pipe so far and don't want to pay £200 for a pipe where I'm going to block most of the outlets off anyway. Do you use a VTA dump valve, or keep it recirculating and somehow modify the Prodrive pipe to take input from the DV return?
08 January 2008, 10:35 PM
#139
09 January 2008, 09:56 AM
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Marmski - I have the 321H on a standard 03 STI engine. If it's the 'H' you're referring too (I think it is when you mention 400/400) then here are my thoughts:
Can a standard MY05 STi Type UK take this turbo/power with its standard clutch? - Yes, providing you're not into full-blooded standing start launches
As i understand from various reading other supporting mods would need to be:
650-750cc injectors - yes, 650s are perfect
New Headers (im assuming i can still keep un-equal?) - yes, tubular headers really lifted the performance of my H compared to ported OEMs
Decat system - I run hi-flow sports cat and have just squeezed out 400bhp
Turbo - Yes
Walbro 255 Fuel Pump - yes
Remap - absolutely!
And then the engine will produce a safe 400/400 on Tesco99/V-Power? Should do; I use a bit of NF for extra safety. Obviously at 400bhp, the engine will be under more stress, but I gather there are several standard engines running well at this power output - the key is good mapping
With regards to other upgrades, are the brembos upto this kinda power? - not really; I'm using Performance Friction discs and pads - absolutely amazing! (suspension is standard shocks but on STi Pink Springs). Also STi panel filter in.
This just sounds like a perfect turbo (why doesnt everyone use these?!!?!) - guess lots of people are put off by the extra outlay compared to some other turbos
Can a standard MY05 STi Type UK take this turbo/power with its standard clutch? - Yes, providing you're not into full-blooded standing start launches
As i understand from various reading other supporting mods would need to be:
650-750cc injectors - yes, 650s are perfect
New Headers (im assuming i can still keep un-equal?) - yes, tubular headers really lifted the performance of my H compared to ported OEMs
Decat system - I run hi-flow sports cat and have just squeezed out 400bhp
Turbo - Yes
Walbro 255 Fuel Pump - yes
Remap - absolutely!
And then the engine will produce a safe 400/400 on Tesco99/V-Power? Should do; I use a bit of NF for extra safety. Obviously at 400bhp, the engine will be under more stress, but I gather there are several standard engines running well at this power output - the key is good mapping
With regards to other upgrades, are the brembos upto this kinda power? - not really; I'm using Performance Friction discs and pads - absolutely amazing! (suspension is standard shocks but on STi Pink Springs). Also STi panel filter in.
This just sounds like a perfect turbo (why doesnt everyone use these?!!?!) - guess lots of people are put off by the extra outlay compared to some other turbos
I already have the upgraded pump, brakes and miltek 3" decat exhaust. Car is my53 sti with APS TMIC and APS cold air intake doing 350+ bhp on v34 (for over a year now and not one problem).
How much would it cost to add the turbo with all supporting parts (all fitted) to my car ...... I'm after c400/400 on standard vpower/tesco fuel.
14 January 2008, 09:18 PM
#143
15 January 2008, 05:58 AM
#145
md321t
just fitted the md321t with the 3" inlet to my car this week also fitted new headers and up pipe 650cc injectors zac at mocom is mapping it monday so i think i will be more than happy think i should see some good figures. the engine at the momment is a standard 03 plate sti engine what sort of figures do you think i will see for now will be going 2.5 built engine soon
15 January 2008, 07:29 AM
#146
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mines running the 321h on the standered 03 sti was running 383 but after a few more mods added and a short spell at the scooby clinic its now running 418 which ime well happy with.ill just have to save up for an engine rebuild now as surely it must be on the edge.
15 January 2008, 06:27 PM
#147
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Is it necessary to use a 3" exhaust with the MD321H?
At the moment I´m using a GT-Spec Header & Up-pipe, decat down-pipe and straight 2,5" to the end.
thx
Serge
At the moment I´m using a GT-Spec Header & Up-pipe, decat down-pipe and straight 2,5" to the end.
thx
Serge
15 January 2008, 08:30 PM
#148
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Me too !
Is a 3" system essential ? Or can I make do with a catted TSL system till later ?
Then tweak the map once the bank balance recovers a bit !
DunxC
Is a 3" system essential ? Or can I make do with a catted TSL system till later ?
Then tweak the map once the bank balance recovers a bit !
DunxC
