400+ BHP QUESTION... ???
13 June 2009, 05:28 PM
#1
400+ BHP QUESTION... ???
Assuming all other appropriate supporting mods, then...
For a 2.0L ODB running on 97 RON ONLY, which turbo - and at which boost level - will produce 400+ bhp?
Thanks in advance.
For a 2.0L ODB running on 97 RON ONLY, which turbo - and at which boost level - will produce 400+ bhp?
Thanks in advance.
Last edited by joz8968; 13 June 2009 at 05:31 PM.
13 June 2009, 06:15 PM
#6
I'm thinking it might actaully take a 321T (450bhp-rated when on V-Power) to do it... So when running it on 97, power/torque will obviously be less, but should still make 400?
Can anyone else see where I'm coming from?
Last edited by joz8968; 13 June 2009 at 07:54 PM.
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13 June 2009, 06:23 PM
#9
JD I would imagine it has forged internal (Joz's signiture states zen built EJ20)
I think on a 2.0l i would still want to use the MD321H over the T and I reckon it would still be the quicker car in the real world. on the dyno or down the pub the MD321T would win but does that matter?
I think on a 2.0l i would still want to use the MD321H over the T and I reckon it would still be the quicker car in the real world. on the dyno or down the pub the MD321T would win but does that matter?
13 June 2009, 07:34 PM
#14
Yeah, I here you all.
It's looking like I'll have to settle on a 321H (or maybe 20g - to save on half the cash) and except less than 400.
I agree Shmerman, it's wholly wrong to introduce added lag/knackering drivability, etc. by getting a bigger turbo, for the sake of chasing numbers.
BTW, how much is the HS420?
[And yes, the ZEN motor is a OBD 2.0L with STi v.3/4 forged pistons; STi v.9 forged rods; ACL Race Series mains/bigs; new rad; new water pump; Zero Sports 71deg stat.]
It's looking like I'll have to settle on a 321H (or maybe 20g - to save on half the cash) and except less than 400.
I agree Shmerman, it's wholly wrong to introduce added lag/knackering drivability, etc. by getting a bigger turbo, for the sake of chasing numbers.
BTW, how much is the HS420?
[And yes, the ZEN motor is a OBD 2.0L with STi v.3/4 forged pistons; STi v.9 forged rods; ACL Race Series mains/bigs; new rad; new water pump; Zero Sports 71deg stat.
]
Last edited by joz8968; 13 June 2009 at 07:59 PM.
13 June 2009, 07:49 PM
#15
Yeah, I know it looks like I'm making the situation harder for myself (which I suppose I am!
), but I can't be bothered to always think ahead to make sure I must get to a Shell garage when low on fuel etc... I just want to be able to stick in Esso/Texaco 97 - or of course V-Power when possible - and hoon; no pfaffing around.(FTR, my nearest Shell garage is only 4.8 miles from my abode!
)
Last edited by joz8968; 13 June 2009 at 08:00 PM.
13 June 2009, 08:27 PM
#16
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I know what i would be doing mate. Why dont you get a simtek with switchable fuel maps, or cheaper still just keep the thing full of v-power. Its not that hard to do mate tbh
Of course there could well be more shell garages in my part of the world
Of course there could well be more shell garages in my part of the world
13 June 2009, 08:39 PM
#17
My car is mapped for v power and it doesn't like anything else. I always carry a bottle of octane booster in the boot just in case I am running low and there are no shell garages in sight.
This works fine for me the 1% of the time I cannot get v power.
This works fine for me the 1% of the time I cannot get v power.
13 June 2009, 11:21 PM
#18
Yeah, I suppose I'm being too lazy. 
As I say, my local Shell is only up the road - compared to other people.
I've got into the habit of only sticking in 20 quid a time... If I were to brim up like normal people do, then it won't be nowhere near a bind. It's a psychological thing - I hate committing that amount of cash to fuel in one go (mind, it's not as if it hangs around in the tank for long with an Impreza, is it... ).
As I say, my local Shell is only up the road - compared to other people.
I've got into the habit of only sticking in 20 quid a time... If I were to brim up like normal people do
, then it won't be nowhere near a bind. It's a psychological thing - I hate committing that amount of cash to fuel in one go (mind, it's not as if it hangs around in the tank for long with an Impreza, is it... ).
14 June 2009, 09:23 PM
#24
Only want to use 97 ron........
I'd love to do that
I have 99 ron
Methanol
NF
Every tank full has its stares of beweilderment especially if I put the methonal in Lucozade bottles
I'd love to do that
I have 99 ron
Methanol
NF
Every tank full has its stares of beweilderment especially if I put the methonal in Lucozade bottles
14 June 2009, 10:01 PM
#25
Steve, do you reckon it'll be worth sticking on a MD321T - hell, even a V! - then (bearing in mind it would be running STi v.3/4 non-AVCS heads on a 2.0L).
Last edited by joz8968; 14 June 2009 at 10:04 PM.
14 June 2009, 10:28 PM
#26
I would go with a 321t as it will future proof you a bit more!The 321h is more for a standar engine and since yours is uprated I reckon you will hit full boost on the 2ltr by say 4000rpm but it will be fun when it starts to pull. If you want instant boost just drop a gear and you will soon see how big a grin you can have.
There is a thread on scoobynet somewhere about terryb's car and he ran a 321t on a 2ltr with great results
I reckon you will hit full boost on the 2ltr by say 4000rpm but it will be fun when it starts to pull. If you want instant boost just drop a gear and you will soon see how big a grin you can have. There is a thread on scoobynet somewhere about terryb's car and he ran a 321t on a 2ltr with great results
14 June 2009, 10:41 PM
#27
I would go with a 321t as it will future proof you a bit more!The 321h is more for a standar engine and since yours is uprated I reckon you will hit full boost on the 2ltr by say 4000rpm but it will be fun when it starts to pull. If you want instant boost just drop a gear and you will soon see how big a grin you can have.
There is a thread on scoobynet somewhere about terryb's car and he ran a 321t on a 2ltr with great results
I reckon you will hit full boost on the 2ltr by say 4000rpm but it will be fun when it starts to pull. If you want instant boost just drop a gear and you will soon see how big a grin you can have. There is a thread on scoobynet somewhere about terryb's car and he ran a 321t on a 2ltr with great results
Do you know what keywords he had in that thread title so I can find it easy e.g. did he have "...MD321T..." in it, for example?For that nugget of info (and if you haven't got one from Nengun already), I'll do you that A'PEXi BCS for what you offered...?
Last edited by joz8968; 14 June 2009 at 10:43 PM.
14 June 2009, 10:51 PM
#28
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MD321t is the way forward (biased of cause as I'm selling one ). The 321H is a 400bhp turbo. The 321t is a 450bhp turbo. I'm runing a 321t on standard internals (sti 8) at 410 bhp 340ft lbs (1.5 bar which most people would agree is very safe) and chrisdicko is running his 321t at 440bhp 370ft lbs (standard internals sti8). 400bhp was last year on standard internals, lol 
.
Yes the 321t does spool up slightly later, but when you change gear at 6500rpm does your engine drop below 4000rpm? From first hand experience I can confirm there is no lag on my 321t when I'm going through the gears (don't confuse later spooling with lag). All my opinion of cause. As Steve said your future proofing as well.
). The 321H is a 400bhp turbo. The 321t is a 450bhp turbo. I'm runing a 321t on standard internals (sti 8) at 410 bhp 340ft lbs (1.5 bar which most people would agree is very safe) and chrisdicko is running his 321t at 440bhp 370ft lbs (standard internals sti8). 400bhp was last year on standard internals, lol . Yes the 321t does spool up slightly later, but when you change gear at 6500rpm does your engine drop below 4000rpm? From first hand experience I can confirm there is no lag on my 321t when I'm going through the gears (don't confuse later spooling with lag). All my opinion of cause. As Steve said your future proofing as well.
Last edited by dave_garrett; 16 June 2009 at 03:49 PM. Reason: Dicko's cras running 440 not 340 bhp, lol.
14 June 2009, 11:06 PM
#29
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MD321t is the way forward (biased of cause as I'm selling one ). The 321H is a 400bhp turbo. The 321t is a 450bhp turbo. I'm runing a 321t on standard internals (sti 8) at 410 bhp 340ft lbs (1.5 bar which most people would agree is very safe) and chrisdicko is running his 321t at 340bhp 370ft lbs (standard internals sti8). 400bhp was last year on standard internals, lol .
Yes the 321t does spool up slightly later, but when you change gear at 6500rpm does your engine drop below 4000rpm? From first hand experience I can confirm there is no lag on my 321t when I'm going through the gears (don't confuse later spooling with lag). All my opinion of cause. As Steve said your future proofing as well.
). The 321H is a 400bhp turbo. The 321t is a 450bhp turbo. I'm runing a 321t on standard internals (sti 8) at 410 bhp 340ft lbs (1.5 bar which most people would agree is very safe) and chrisdicko is running his 321t at 340bhp 370ft lbs (standard internals sti8). 400bhp was last year on standard internals, lol . Yes the 321t does spool up slightly later, but when you change gear at 6500rpm does your engine drop below 4000rpm? From first hand experience I can confirm there is no lag on my 321t when I'm going through the gears (don't confuse later spooling with lag). All my opinion of cause. As Steve said your future proofing as well.
Spot on that man. I'm running my MD321T on my02 STi with standard internals. At present I am running 402.5bhp / 359lbft (surrey rolling road and mapped by JGM) and thats with OEM TMIC and 550cc injectors still. So in effect I am saving myself another turbo change when I take it to the next level at 450bhp.
I find the "T" pretty late in terms of get going but its ideal for everyday use that I use the car for.
Motorways are another story. Holy sweet jesus!!!
Steve
