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Twinscroll Turbo choice. SC46 billet or LM450 billet?

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Old 15 November 2015 | 11:13 AM
  #91  
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Originally Posted by chris_wrx
yeah mine is still on standard ecu to how do you find syvecs as a dd waiting for alcatek to launch dbw hopefully soon but if not may have to bite the bullet
What you throwing cash on a new ECU for Chris!?

You don't need DBW either..... your car is cable.
Old 15 November 2015 | 01:14 PM
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Originally Posted by crazyspeedfreakz
Decent twinscroll aftermarket used turbos seem to be so hard to find don't get me wrong I would like new but prices are steeeep....

What are you going to do martin are u go lm420 or lm400.... I take it u have ruled out a SC turbo ?
Prices are on the high end but I suppose you buy cheap you buy twice.. Not ruled an sc out mate no, a think bannys got one on his twinscroll which pulls hard by the vid I seen. I'm swaying towards the lm450 to still have head way for more the 420 does seem more suited to me I'd like to hear from anyone who's used one

Martin
Old 15 November 2015 | 02:32 PM
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Martin I have fuds old twinscroll sc 42/46 fitted on my 2 ltr spec-c engined classic which has been clocked and rotated but havent had it fully mapped yet due to intercooler issues which have been fixed now,I just havent had the time yet to get the final mapping organised yet
Old 15 November 2015 | 09:45 PM
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Originally Posted by gussy
Martin I have fuds old twinscroll sc 42/46 fitted on my 2 ltr spec-c engined classic which has been clocked and rotated but havent had it fully mapped yet due to intercooler issues which have been fixed now,I just havent had the time yet to get the final mapping organised yet
You'll have to keep us posted on how it performs mate be interesting to hear from you..

Martin
Old 15 November 2015 | 09:54 PM
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Originally Posted by Shaun
What you throwing cash on a new ECU for Chris!?

You don't need DBW either..... your car is cable.
hi shaun maybe looking to change a few things on the setup that may require a tweek to the ecu in the future which im guessing is locked by bob.

ive looked under the bonnet so often and seen the cable but my brain over ruled as its a hawkeye and my last one was dbw.

hows the hunt for 500 german ponies going? spoke to alv he is really happy how is hatch is now. maybe do a thurs night for the bigmans bday
Old 15 November 2015 | 09:57 PM
  #96  
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mart if your ever in the mids come and have a go in mine if you like only difference being the fmic from the setup your looking at.
Old 19 November 2015 | 06:00 PM
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Originally Posted by M2RTXhawkeye
Prices are on the high end but I suppose you buy cheap you buy twice.. Not ruled an sc out mate no, a think bannys got one on his twinscroll which pulls hard by the vid I seen. I'm swaying towards the lm450 to still have head way for more the 420 does seem more suited to me I'd like to hear from anyone who's used one

Martin
I can't comment on the SC range or the LM400 or LM450 .. but I like my LM420 (with other upgrades)

I deliberately went that way in order to try to limit the extra strain on the engine, gearbox and clutch etc whilst getting the extra performance .. without there being too much whiplash.

Personally I think it gives my JDM blobeye just about the right amount of power for a day to day driver .. mapped by Bob to 426/392
Old 19 November 2015 | 09:33 PM
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Originally Posted by chris_wrx
mart if your ever in the mids come and have a go in mine if you like only difference being the fmic from the setup your looking at.
Really generous offer mate appreciate it, I'll defo keep that in mind

Originally Posted by T20Driver
I can't comment on the SC range or the LM400 or LM450 .. but I like my LM420 (with other upgrades)

I deliberately went that way in order to try to limit the extra strain on the engine, gearbox and clutch etc whilst getting the extra performance .. without there being too much whiplash.

Personally I think it gives my JDM blobeye just about the right amount of power for a day to day driver .. mapped by Bob to 426/392
Sounds really good mate, how does it compare to the standard turbo assuming you upgraded from a 37? Could you also tell us your spec too please.. With me wanting to keep the tmic this could be a great option.. Any graphs?

Martin
Old 20 November 2015 | 03:42 PM
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Originally Posted by M2RTXhawkeye

Sounds really good mate, how does it compare to the standard turbo assuming you upgraded from a 37? Could you also tell us your spec too please.. With me wanting to keep the tmic this could be a great option.. Any graphs?

Martin
Night and day between standard VF37 and now ..

Plus ... to help you with your decision .. as it happens .. I did upgrade the turbo, injectors etc whilst still on the top mount and std airbox .... max I got was 395/335 from (poor) memory. Replacing them with a FMIC and BRD/RCM Induction made a massive difference .. especially to torque and mid range overtaking.

Personally, knowing what I know now ... and IF you're wanting to keen to the Top Mount .. I'd suggest going for a 400 turbo to keep the great spooling characteristics. BUT ... you will have to offset the thought of 400 vs what you could have got if you'd have spent a little more money on FMIC and Cone :-) .. just like I wonder about whether I should have gone 450 !!!

Road mapping Graph from Bob Rawle is in post 295 (near the bottom) .. as is the spec :

T20Driver - 426bhp, 391lbft, MY05 2.0 JDM STi, Billet LM420, Hybrid FMIC, BRD Induction, 800cc injectors, 3" Miltek decat, Bob Rawle map, V Power - daily driver

https://www.scoobynet.com/941285-sco...rboard-10.html

Alas am just not using it at the moment - 2k miles since MOT in May .. and so that is a real shame .. so seriously considering selling now to let someone else get the pleasure ... but we'll see .. maybe not !!

Last edited by T20Driver; 20 November 2015 at 03:45 PM.
Old 20 November 2015 | 04:14 PM
  #100  
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Originally Posted by T20Driver
Night and day between standard VF37 and now ..

Plus ... to help you with your decision .. as it happens .. I did upgrade the turbo, injectors etc whilst still on the top mount and std airbox .... max I got was 395/335 from (poor) memory. Replacing them with a FMIC and BRD/RCM Induction made a massive difference .. especially to torque and mid range overtaking.

Personally, knowing what I know now ... and IF you're wanting to keen to the Top Mount .. I'd suggest going for a 400 turbo to keep the great spooling characteristics. BUT ... you will have to offset the thought of 400 vs what you could have got if you'd have spent a little more money on FMIC and Cone :-) .. just like I wonder about whether I should have gone 450 !!!

Road mapping Graph from Bob Rawle is in post 295 (near the bottom) .. as is the spec :

T20Driver - 426bhp, 391lbft, MY05 2.0 JDM STi, Billet LM420, Hybrid FMIC, BRD Induction, 800cc injectors, 3" Miltek decat, Bob Rawle map, V Power - daily driver

https://www.scoobynet.com/941285-sco...rboard-10.html

Alas am just not using it at the moment - 2k miles since MOT in May .. and so that is a real shame .. so seriously considering selling now to let someone else get the pleasure ... but we'll see .. maybe not !!
Perfect mate and exactly the info I was after

I've been down the fmic route which is why I'd like to keep to the tmic, like the standard-ish look I think I'd go for the 420 as I'd be more than Happy with what you got with your tmic.. I'll have a flick through your thread this evening..

If you fancy the 450 we could come to a deal for your 420

Thanks for the info though mate

Martin
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