2.1 Spec C turbo options
19 October 2016, 06:24 PM
#1
2.1 Spec C turbo options
Friend of mine is about to go 2.1 on his standard Spec C blobeye and wants to up the power.
His aim is 450bhp with a stock location turbo, the problem is he's reluctant to go fmic as he wants the exterior to remain as stock as possible. He's not ruling it out, and i've explained how it'll restrict him so hopefully he'll come around on that.
I'd be interested to hear what twinscroll owners have gone with in terms of turbo choice to see similar figures.
I realise that injectors, decat system, fuel pump, induction etc will also be required. He has set a budget for it, which can be increased if it means things dont have to be done twice. Plan is to get everything together and do it all in 1 go as the block is already built.
Aftermarket ecu and meth are not out of the equation, but ideally would like to see close to 450 on v power, with the meth as a perk.
Be interested to hear from 2.1 twinscrollers and what they recommend
His aim is 450bhp with a stock location turbo, the problem is he's reluctant to go fmic as he wants the exterior to remain as stock as possible. He's not ruling it out, and i've explained how it'll restrict him so hopefully he'll come around on that.
I'd be interested to hear what twinscroll owners have gone with in terms of turbo choice to see similar figures.
I realise that injectors, decat system, fuel pump, induction etc will also be required. He has set a budget for it, which can be increased if it means things dont have to be done twice. Plan is to get everything together and do it all in 1 go as the block is already built.
Aftermarket ecu and meth are not out of the equation, but ideally would like to see close to 450 on v power, with the meth as a perk.
Be interested to hear from 2.1 twinscrollers and what they recommend
19 October 2016, 06:47 PM
#2
Scooby Regular
I'm going down the same route next year and I'm getting pulled more towards the lm range but not sure yet...
19 October 2016, 07:05 PM
#4
Are you not some sort of tuning expert hammond, the way you go on about peoples cars on facebook surprised you ask questions on here for advice as you always have comments to make about how people have gone about modding their cars....
Last edited by banny sti; 19 October 2016 at 07:06 PM.
19 October 2016, 07:16 PM
#6
Scooby Regular
19 October 2016, 07:22 PM
#7
Just to start with I am single scroll, however I have posted because I too have stuck with a TMIC. I didnt want the hassle of a FMIC. So after a bit of research I decided to go for a Grimmspeed TMIC on a 2.1 stroker with a single scroll SC46 turbo, managed a healthy 442bhp with 390ft/lbs. Running on vpower I am gettng 1bar at 3600rpm and 1.8bar at 4100rpm.
I thought you could get a Twin scroll SC46 but I can't see one on the ScoobyClinic shop
. .be worth giving them a ring, I bet a twinscroll SC46 would spool at least 500-1000rpm sooner than my single scroll does 
Anyway the Grimmspeed TMIC I can vouch for, yes it's expensive, it's very well put together and cools pretty good too with none of the hassle of a FMIC and virtually Zero lag.
Some things to consider:
Getting a Grimmspeed undertray splitter, helps so much with extra airflow to the TMIC, much bigger than standard one and provides a good seal to the face of the TMIC to ensure air flows through TMIC and not over the sides of it.
Fit IAT sensors so ECU can monitor charge temps and adjust timing and fuel accordingly.
Also look at heat management in the engine bay, maybe a turbo blanket, uprated heatsheild, ceramic coated exhaust housing, wrapped or ceramic coated downpipe, wrapped or ceramic coated headers, phenolic manifold spacers, it all helps keep the temps down and heat away from the TMIC, anything is better than nothing!
Just my 2ps worth, hope it's of some help
I thought you could get a Twin scroll SC46 but I can't see one on the ScoobyClinic shop
. .be worth giving them a ring, I bet a twinscroll SC46 would spool at least 500-1000rpm sooner than my single scroll does Anyway the Grimmspeed TMIC I can vouch for, yes it's expensive, it's very well put together and cools pretty good too with none of the hassle of a FMIC and virtually Zero lag.
Some things to consider:
Getting a Grimmspeed undertray splitter, helps so much with extra airflow to the TMIC, much bigger than standard one and provides a good seal to the face of the TMIC to ensure air flows through TMIC and not over the sides of it.
Fit IAT sensors so ECU can monitor charge temps and adjust timing and fuel accordingly.
Also look at heat management in the engine bay, maybe a turbo blanket, uprated heatsheild, ceramic coated exhaust housing, wrapped or ceramic coated downpipe, wrapped or ceramic coated headers, phenolic manifold spacers, it all helps keep the temps down and heat away from the TMIC, anything is better than nothing!
Just my 2ps worth, hope it's of some help
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19 October 2016, 08:17 PM
#8
I feel like posting but I can't be arsed with this eejiaat.
He's quick to talk all expert on FB but always asking noob questions on here loooool.
He's in disguise remember
Last edited by bustaMOVEs; 19 October 2016 at 08:20 PM.
19 October 2016, 08:41 PM
#10
Scooby Regular
Just to start with I am single scroll, however I have posted because I too have stuck with a TMIC. I didnt want the hassle of a FMIC. So after a bit of research I decided to go for a Grimmspeed TMIC on a 2.1 stroker with a single scroll SC46 turbo, managed a healthy 442bhp with 390ft/lbs. Running on vpower I am gettng 1bar at 3600rpm and 1.8bar at 4100rpm.
I thought you could get a Twin scroll SC46 but I can't see one on the ScoobyClinic shop . .be worth giving them a ring, I bet a twinscroll SC46 would spool at least 500-1000rpm sooner than my single scroll does
Anyway the Grimmspeed TMIC I can vouch for, yes it's expensive, it's very well put together and cools pretty good too with none of the hassle of a FMIC and virtually Zero lag.
Some things to consider:
Getting a Grimmspeed undertray splitter, helps so much with extra airflow to the TMIC, much bigger than standard one and provides a good seal to the face of the TMIC to ensure air flows through TMIC and not over the sides of it.
Fit IAT sensors so ECU can monitor charge temps and adjust timing and fuel accordingly.
Also look at heat management in the engine bay, maybe a turbo blanket, uprated heatsheild, ceramic coated exhaust housing, wrapped or ceramic coated downpipe, wrapped or ceramic coated headers, phenolic manifold spacers, it all helps keep the temps down and heat away from the TMIC, anything is better than nothing!
Just my 20ps worth, hope it's of some help
I thought you could get a Twin scroll SC46 but I can't see one on the ScoobyClinic shop
. .be worth giving them a ring, I bet a twinscroll SC46 would spool at least 500-1000rpm sooner than my single scroll does Anyway the Grimmspeed TMIC I can vouch for, yes it's expensive, it's very well put together and cools pretty good too with none of the hassle of a FMIC and virtually Zero lag.
Some things to consider:
Getting a Grimmspeed undertray splitter, helps so much with extra airflow to the TMIC, much bigger than standard one and provides a good seal to the face of the TMIC to ensure air flows through TMIC and not over the sides of it.
Fit IAT sensors so ECU can monitor charge temps and adjust timing and fuel accordingly.
Also look at heat management in the engine bay, maybe a turbo blanket, uprated heatsheild, ceramic coated exhaust housing, wrapped or ceramic coated downpipe, wrapped or ceramic coated headers, phenolic manifold spacers, it all helps keep the temps down and heat away from the TMIC, anything is better than nothing!
Just my 20ps worth, hope it's of some help
19 October 2016, 08:53 PM
#11
I'm running 455/398 Owens version of lm450
Id1000cc hks induction kit
Hks fmic
Rcm headers full 3inch exhaust
Grimspeed 3 port boost solenoid
Perron 4 bar map sensor
Top mount mocal oil cooler
Act clutch billet flywheel
1.65 bar 95 octane/nf octane. Booster
Ecutek remap bob rawle
I don't get the comments regarding the fmic don't be a lazy **** and get it fitted
Id1000cc hks induction kit
Hks fmic
Rcm headers full 3inch exhaust
Grimspeed 3 port boost solenoid
Perron 4 bar map sensor
Top mount mocal oil cooler
Act clutch billet flywheel
1.65 bar 95 octane/nf octane. Booster
Ecutek remap bob rawle
I don't get the comments regarding the fmic don't be a lazy **** and get it fitted
Last edited by RAGGY DOO; 19 October 2016 at 08:54 PM.
19 October 2016, 11:24 PM
#13
Scooby Regular
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Just to start with I am single scroll, however I have posted because I too have stuck with a TMIC. I didnt want the hassle of a FMIC. So after a bit of research I decided to go for a Grimmspeed TMIC on a 2.1 stroker with a single scroll SC46 turbo, managed a healthy 442bhp with 390ft/lbs. Running on vpower I am gettng 1bar at 3600rpm and 1.8bar at 4100rpm.
I thought you could get a Twin scroll SC46 but I can't see one on the ScoobyClinic shop . .be worth giving them a ring, I bet a twinscroll SC46 would spool at least 500-1000rpm sooner than my single scroll does
Anyway the Grimmspeed TMIC I can vouch for, yes it's expensive, it's very well put together and cools pretty good too with none of the hassle of a FMIC and virtually Zero lag.
Some things to consider:
Getting a Grimmspeed undertray splitter, helps so much with extra airflow to the TMIC, much bigger than standard one and provides a good seal to the face of the TMIC to ensure air flows through TMIC and not over the sides of it.
Fit IAT sensors so ECU can monitor charge temps and adjust timing and fuel accordingly.
Also look at heat management in the engine bay, maybe a turbo blanket, uprated heatsheild, ceramic coated exhaust housing, wrapped or ceramic coated downpipe, wrapped or ceramic coated headers, phenolic manifold spacers, it all helps keep the temps down and heat away from the TMIC, anything is better than nothing!
Just my 2ps worth, hope it's of some help
I thought you could get a Twin scroll SC46 but I can't see one on the ScoobyClinic shop
. .be worth giving them a ring, I bet a twinscroll SC46 would spool at least 500-1000rpm sooner than my single scroll does Anyway the Grimmspeed TMIC I can vouch for, yes it's expensive, it's very well put together and cools pretty good too with none of the hassle of a FMIC and virtually Zero lag.
Some things to consider:
Getting a Grimmspeed undertray splitter, helps so much with extra airflow to the TMIC, much bigger than standard one and provides a good seal to the face of the TMIC to ensure air flows through TMIC and not over the sides of it.
Fit IAT sensors so ECU can monitor charge temps and adjust timing and fuel accordingly.
Also look at heat management in the engine bay, maybe a turbo blanket, uprated heatsheild, ceramic coated exhaust housing, wrapped or ceramic coated downpipe, wrapped or ceramic coated headers, phenolic manifold spacers, it all helps keep the temps down and heat away from the TMIC, anything is better than nothing!
Just my 2ps worth, hope it's of some help
