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Does anyone have a SC42 dyno graph?

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Old 11 September 2018, 03:05 PM
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SmurfyBhoy
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Originally Posted by BrownPantsRacing
Thanks for the link. To me that looks more like a 450bhp turbo really.
Pretty sure the smallest Dominator series with a 7cm housing was SC42, (Gt30 based)

So id say that 20gxtr based one would spool better but make less peak, (if fitted with same sized housing)

Im sure the xtr 20g is actually more like a gt28 as its not a journal bearing
Old 11 September 2018, 03:23 PM
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Looking at the Blouch site and range:

http://www.bptstore.com/Subaru-WRXSTi_c_14.html

Looks to me like their 16G-XT-R is the basis of the SC38, 18G-XT-R is the basis of the SC42 and the 20G-XT-R is the basis of the SC46. All the quoted power figures seem to match up.

Do you know what Scoobyclinic change on these to enable them to quote improvements and sell as their own design? Are the SC turbo's really that much better than the original Blouch turbos?

Don't get me wrong, I think I'm still in the market for an SC turbo if I can convince myself. lol.
Old 11 September 2018, 03:33 PM
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Originally Posted by BrownPantsRacing
Looking at the Blouch site and range:

http://www.bptstore.com/Subaru-WRXSTi_c_14.html

Looks to me like their 16G-XT-R is the basis of the SC38, 18G-XT-R is the basis of the SC42 and the 20G-XT-R is the basis of the SC46. All the quoted power figures seem to match up.

Do you know what Scoobyclinic change on these to enable them to quote improvements and sell as their own design? Are the SC turbo's really that much better than the original Blouch turbos?

Don't get me wrong, I think I'm still in the market for an SC turbo if I can convince myself. lol.
Have a look over on NASIOC the break em down into wheel sizes etc.

The SC just have a 7cm housing to aid spool but would limit power compared to 8cm or 10cm

I agree that the lbs min ratings do seem similar but id guess they are before the whole + range came about,

as i says pretty sure the 16/18/20gxtr are based on GT28 cartridge

Dominator based off Gt30

No difference if u get the blouch with cm housing and correct spec its the same turbo, SC certainly dont take em apart lol
Old 11 September 2018, 03:36 PM
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Originally Posted by BrownPantsRacing
Thanks for the link. To me that looks more like a 450bhp turbo really.
I was searching last night for specs on the SC42 and came on a post on here were someone said the one i linked is basicly the same but scoobyclinic use a 7cm housing - so rated at less power - which is why they dont offer that option in ball bearing core but in journal bearing.

Iv emailed them to find out posrtage costs etc.
Old 11 September 2018, 03:36 PM
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Originally Posted by SmurfyBhoy
Have a look over on NASIOC the break em down into wheel sizes etc.

The SC just have a 7cm housing to aid spool but would limit power compared to 8cm or 10cm

I agree that the lbs min ratings do seem similar but id guess they are before the whole + range came about,

as i says pretty sure the 16/18/20gxtr are based on GT28 cartridge

Dominator based off Gt30

No difference if u get the blouch with cm housing and correct spec its the same turbo, SC certainly dont take em apart lol
That makes sense as they only offer them in 8mm or 10mm housings on the Blouch range, so will be something SC have negotiated. I may enquire.
Old 11 September 2018, 03:37 PM
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Originally Posted by rsjohn
I was searching last night for specs on the SC42 and came on a post on here were someone said the one i linked is basicly the same but scoobyclinic use a 7cm housing - so rated at less power - which is why they dont offer that option in ball bearing core but in journal bearing.

Iv emailed them to find out posrtage costs etc.
Nice one!

Old 11 September 2018, 03:38 PM
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https://forums.nasioc.com/forums/sho...170999&page=37
Old 11 September 2018, 03:38 PM
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https://forums.nasioc.com/forums/sho...&postcount=280
Old 11 September 2018, 03:40 PM
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All you do is ask Blouch for the 7cm housing, job done,

Nothing special or different other than that if you get the same wheel specs of course,

My bet would be that when they came out with the + range all they did was step up one level,
Old 11 September 2018, 03:43 PM
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I've got a brand new 18g xtr (8cm housing) if you're interested?
Old 11 September 2018, 03:45 PM
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Originally Posted by BrownPantsRacing
Is that the billet version? That sounds like a very reasonable spool rpm for full boost. Is that using a FMIC?
The turbo was standard wheel but had some repair work at TD (previous owner had HKS filter) and came back like new, I don't think they billeted it but can't be certain.
The cooler was top mount, an AVO so about STI TMIC performance.
I have some graphs on vpower made 420, I'll see about putting them up if can.
Trev
Old 11 September 2018, 03:49 PM
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Originally Posted by Chrisp11981
I've got a brand new 18g xtr (8cm housing) if you're interested?
How much?
Old 11 September 2018, 03:56 PM
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Originally Posted by trevsjwood
The turbo was standard wheel but had some repair work at TD (previous owner had HKS filter) and came back like new, I don't think they billeted it but can't be certain.
The cooler was top mount, an AVO so about STI TMIC performance.
I have some graphs on vpower made 420, I'll see about putting them up if can.
Trev
That's a great result Trev. Must be ballistic on TMIC at that level too.
Old 11 September 2018, 03:56 PM
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That's an interesting read thanks Smurf.
Old 11 September 2018, 04:01 PM
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just read through this thread, i think 420bhp may be a little too much for my standard rods (even though they have arp rod bolts).

do they not do a turbo for around 380-400bhp?
Old 11 September 2018, 04:05 PM
  #46  
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Originally Posted by the shreksta
just read through this thread, i think 420bhp may be a little too much for my standard rods (even though they have arp rod bolts).

do they not do a turbo for around 380-400bhp?
http://www.bptstore.com/Subaru-WRXST...er-_p_131.html
Old 11 September 2018, 04:07 PM
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Originally Posted by the shreksta
just read through this thread, i think 420bhp may be a little too much for my standard rods (even though they have arp rod bolts).

do they not do a turbo for around 380-400bhp?
I'd go for the SC38 then. They have also out-performed the quoted figures so you could see 380-400 depending on mods and meth if you want to go down that route.

Or the Blouch turbo RS John pointed to.
Old 11 September 2018, 04:15 PM
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Originally Posted by BrownPantsRacing
I'd go for the SC38 then. They have also out-performed the quoted figures so you could see 380-400 depending on mods and meth if you want to go down that route.

Or the Blouch turbo RS John pointed to.
im not too clued up on turbos and boost etc but from what i gather its better to not run too much boost on my engine, i have a closed deck block but only 11mm arp headsuds or have i got confused somewhere?

i know that to get the goals you require you should go for the smallest turbo to reach those goals so for an example the sc46 would be the wrong choice on my engine.

Old 11 September 2018, 04:22 PM
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Originally Posted by BrownPantsRacing
I'd go for the SC38 then. They have also out-performed the quoted figures so you could see 380-400 depending on mods and meth if you want to go down that route.

Or the Blouch turbo RS John pointed to.
order the sc42 and don’t be a wuss
Old 11 September 2018, 04:29 PM
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Originally Posted by BrownPantsRacing
That's a great result Trev. Must be ballistic on TMIC at that level too.
this is a few years ago. My wagon is a tad lardy but as a road car, just brill
Old 11 September 2018, 04:30 PM
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Originally Posted by RAGGY DOO


order the sc42 and don’t be a wuss
I will, I'm not going for the SC38 when I purchase!
Old 11 September 2018, 04:35 PM
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Originally Posted by BrownPantsRacing
I will, I'm not going for the SC38 when I purchase!
it's ok for you.......somebody spent the extra and paid for uprated rods unlike the tight git who owned my car.

so would it be best for an sc42 and cap it @ 400bhp or an sc38 and run alot of boost?
Old 11 September 2018, 04:38 PM
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Originally Posted by the shreksta
it's ok for you.......somebody spent the extra and paid for uprated rods unlike the tight git who owned my car.

so would it be best for an sc42 and cap it @ 400bhp or an sc38 and run alot of boost?
Depends who you speak to regarding rods really. I have heard various people state the standard rods are good for 450bhp 450lb/ft and 7k rpm.
Old 11 September 2018, 04:42 PM
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Originally Posted by BrownPantsRacing
Depends who you speak to regarding rods really. I have heard various people state the standard rods are good for 450bhp 450lb/ft and 7k rpm.
I have been told 4 different ratings by 4 well respected tuners....

TUNER A - says rods are good for 380bhp
TUNER B - says rods are good for 400bhp
TUNER C - says rods are good for 420bhp
TUNER D - says rods are good for 450bhp
Old 11 September 2018, 04:42 PM
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Originally Posted by BrownPantsRacing
I'd go for the SC38 then. They have also out-performed the quoted figures so you could see 380-400 depending on mods and meth if you want to go down that route.

Or the Blouch turbo RS John pointed to.
Having been there I'd go MDX321H or MDX555-400 because they're roller bearing

SC told me the 42 outspools the 38 for the reason above.

Last edited by LewisScoob; 11 September 2018 at 04:44 PM. Reason: further info
Old 11 September 2018, 04:46 PM
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Originally Posted by LewisScoob
Having been there I'd go MDX321H or MDX555-400 because they're roller bearing

SC told me the 42 outspools the 38 for the reason above.
Ah good call, hadn't realised the smaller SC38 was sleeve bearing.
Old 11 September 2018, 04:47 PM
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Trevs do you have a boost vs RPM plot also? Interested to see where 1bar is reached in the rev range.

Originally Posted by trevsjwood
this is a few years ago. My wagon is a tad lardy but as a road car, just brill
Old 11 September 2018, 04:47 PM
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Originally Posted by the shreksta
I have been told 4 different ratings by 4 well respected tuners....

TUNER A - says rods are good for 380bhp
TUNER B - says rods are good for 400bhp
TUNER C - says rods are good for 420bhp
TUNER D - says rods are good for 450bhp
Andy F said 450bhp max on std rods.

To be honest I thought Paul Finch had also told me that but I can't find my email confirming.

Last edited by BrownPantsRacing; 11 September 2018 at 05:02 PM.
Old 11 September 2018, 04:49 PM
  #59  
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I'd play safe with rods, Paul Finch say's 380hp standard rods and wouldn't want to second guess him.
I would have thought a 400hp bang would be the same effect, which ever turbo.
Trev
Old 11 September 2018, 04:59 PM
  #60  
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Originally Posted by LewisScoob
Trevs do you have a boost vs RPM plot also? Interested to see where 1bar is reached in the rev range.
1 bar is at 3550rpm
Trev


Quick Reply: Does anyone have a SC42 dyno graph?



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