420bhp to 450bhp
29 March 2018, 02:14 PM
#2
Scooby Regular
Will be plenty for the road with good response too,
What blower you considering ?
Something Twin Scroll ?
Closed Deck, 14mm studs, Injectors, all the trimmings I'd expect a bill close to 5-6k (poss even more) if you want drive in drive out.
Stock ECU should be enough there as well or add another couple k ontop.
What blower you considering ?
Something Twin Scroll ?
Closed Deck, 14mm studs, Injectors, all the trimmings I'd expect a bill close to 5-6k (poss even more) if you want drive in drive out.
Stock ECU should be enough there as well or add another couple k ontop.
29 March 2018, 02:30 PM
#3
Scooby Regular
i would expect considerably more than 5-6k to hit 450, prob 10-15k by the time you factor in all the extra parts you'll need for a reliable 450.
Second hand parts would save some money but would you really wanna spend that much and only get a part to fail and put you back to square 1?
Second hand parts would save some money but would you really wanna spend that much and only get a part to fail and put you back to square 1?
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29 March 2018, 03:52 PM
#9
Scooby Regular
29 March 2018, 03:59 PM
#12
Scooby Regular
It depends where your coming from and what you spec for.
At 450 i'd be sacking the standard ecu for sure and running a syvecs which will be 2k, turbo will be 1-2k, injectors £400, front mount £1000 (for a decent one), clutch £500, i'd be adding oil cooler £450, inlet pipe, 3 port, 4 bar map sensor, mapping time, build time etc etc
Plus whatever you have add on 20% for vat, it all adds up and that assumes it doesn't need headwork, the block isn't so badly warped it needs to be scrapped or linered and the ancillary parts coming off are reusable.
At 450 i'd be sacking the standard ecu for sure and running a syvecs which will be 2k, turbo will be 1-2k, injectors £400, front mount £1000 (for a decent one), clutch £500, i'd be adding oil cooler £450, inlet pipe, 3 port, 4 bar map sensor, mapping time, build time etc etc
Plus whatever you have add on 20% for vat, it all adds up and that assumes it doesn't need headwork, the block isn't so badly warped it needs to be scrapped or linered and the ancillary parts coming off are reusable.
29 March 2018, 06:52 PM
#14
For a 2.5, a sc42 is not suitable imo, go with a sc46 as that's what it's made for, you don't need a syvecs unless your wanting to brag as half of features won't be needed, link ecu are good ecus, better than most others imo apart from syvecs of course and circa £1k and does everything and real simple to map.
29 March 2018, 07:34 PM
#18
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So if the OP wanted to run a 321T or similar on the 2.5 BASIC mods needed would be , plugs, fpr, injectors and?
Last edited by FranK RA; 29 March 2018 at 07:37 PM.
29 March 2018, 08:16 PM
#20
I think the SC turbos could perhaps be easier to fit. I have a twin entry 321T+ with the big 3" compressor housing. It wasn't even possible to use the stock AVCS hardline that runs to the AVCS solenoid and turbo oil feed. It would run straight into the actuator bracket. And the normal cutting of the lug on the block of course.
Doing it again I would have gone for a SC46 or Blouch 1.5 Xtr twin scroll.
Doing it again I would have gone for a SC46 or Blouch 1.5 Xtr twin scroll.
29 March 2018, 08:46 PM
#22
But as you say in title 420-450. The sc46 will give you 440-450 with good spool just like the sc42 will be good spool to match on a 2.0, but you will gain more hp on the 46.
Put it this way, if I had/or using a 2.5 then I'd use a slightly bigger turbo to gain that free extra hp as spool will be on par when thinking of a 2.0.
(Note I'm using a sc42 on a 2.0.....soon will be a 2.1)
Not saying the sc42 won't be great on a 2.5, it will be pretty mental if I'm honest but you could gain 'free' extra hp on a bigger turbo hahaha.
All depends on your end numbers really. If 400 then the 42 will be top.
P.s I do have a sc42 near new for sale if interested
(see my above post is me not pushing my sale but giving my version of opinion) 
Last edited by bustaMOVEs; 29 March 2018 at 08:50 PM.
29 March 2018, 09:00 PM
#23
I would like the sc46 or md321t but the extra cost could be the price of your sc42
Andy f sent me this message
Depends if you want the 420 or 460 end of the scale. You don't need headers, fuel pressure reg, grade 8 plugs or AVCR for 420ish
So say i go sc46
Added parts above will be roughly £1100 then fitting cost
Andy f sent me this message
Depends if you want the 420 or 460 end of the scale. You don't need headers, fuel pressure reg, grade 8 plugs or AVCR for 420ish
So say i go sc46
Added parts above will be roughly £1100 then fitting cost
29 March 2018, 09:03 PM
#24
I'd expect around 430bhp from the SC46 & MDX321T on V-Power and safe boost with the spec you've mentioned. Any more would be a bonus.
29 March 2018, 11:11 PM
#28
Scooby Regular
Zippy, no disrespect meant at all but can you drive a 400+bhp car to its limits? Or near it? When can you do that if so? Not being a pr*ck intentionally but will a jump from 420 to 460 give or take be worth the outlay? Do you intend on tracking it? You can’t use that sort of power on the roads in reality unless going from a 30
to a 70 V quickly! It sounds like such a boring thing to say but is it worth the cash mate? Think we need sort out a Scottish meet, think Wull is semi local to you and I (not that we know each other). I have 2 Sccobs, the (current) best being a JDM blob kicking out 385ibs ft according to Andy F and it flies! Will wheel spin into 3rd on damp roads. Your welcome to try it out at knockhill. You could save yourself best part of 3k! As they say horses for courses and all that!!!!
to a 70 V quickly! It sounds like such a boring thing to say but is it worth the cash mate? Think we need sort out a Scottish meet, think Wull is semi local to you and I (not that we know each other). I have 2 Sccobs, the (current) best being a JDM blob kicking out 385ibs ft according to Andy F and it flies! Will wheel spin into 3rd on damp roads. Your welcome to try it out at knockhill. You could save yourself best part of 3k! As they say horses for courses and all that!!!!
30 March 2018, 01:45 AM
#29
R666ory This is my sixth impreza
last one blob jdm running 432bhp 409ft/lb
One before that widetrack 410bhp 385ft/lb
Dont track but attend scottish scoobies monthly meets and go on sunday country runs with a few of the boys
last one blob jdm running 432bhp 409ft/lb
One before that widetrack 410bhp 385ft/lb
Dont track but attend scottish scoobies monthly meets and go on sunday country runs with a few of the boys
Last edited by peter zippy reid; 30 March 2018 at 01:47 AM.