Truth about turbo positioning

[johl]

I'm not sure where you are looking but there are many options for RHD turbo. Literally everything except the ptuning kit will fit.

Here is a company from Australia that sells a kit which looks almost identical to ptuning.

[mitch t]

Originally Posted by _debo

The problem is that there is not much of a choice for us unfortunate to live in a RHD country when it comes to turbo

Honestly, it is amusing to see folks choose up sides in the SC vs turbo debate, as though there is a clear all conditions winner here. Even the carmakers themselves haven't been able to pick one, as you still see SC's and turbos on factory cars, where they have literally millions of dollars and thousands of hours of R&D.

There are a few considerations here, though for you to think about.

1. I've rarely if ever seen an OEM retrofit turbo, though there are several SC kits available from TRD as well as GM and Ford. I imagine that is is because most cars that are not designed to be a turbo can't cope with the underhood temps associated with the turbo and extra exhaust winding all over the engine compartment.

2. You live in the land of Cosworth, which has a great product and good support. also helps with time zone stuff as well a language, when you need assistance.

3. It seams like you REALLY want to go turbo. If that is the case, and you are willing to do some extra work and maybe deal with some issues during install and down the road, it might be worth it.

After all, the whole point of this is to have the car you want, and if a supercharger isn't going to make you happpy, why spend all the money and time, if in the end, you really aren't psyched about it.

(full disclosure, I am running an Edelbrock SC on my FRS, and I love it. I wouldn't trade it for a turbo, if you paid me)

[_debo]

Originally Posted by johl

I'm not sure where you are looking but there are many options for RHD turbo. Literally everything except the ptuning kit will fit.

Here is a company from Australia that sells a kit which looks almost identical to ptuning.

Mostly google and "relevant" forums and the are basically three real options. The one you posted it is actually the AVO kit which is one of the only 3 available for RHD and the one I like the least based on the things I read.

Originally Posted by mitch t

Honestly, it is amusing to see folks choose up sides in the SC vs turbo debate, as though there is a clear all conditions winner here. Even the carmakers themselves haven't been able to pick one, as you still see SC's and turbos on factory cars, where they have literally millions of dollars and thousands of hours of R&D.

There are a few considerations here, though for you to think about.

1. I've rarely if ever seen an OEM retrofit turbo, though there are several SC kits available from TRD as well as GM and Ford. I imagine that is is because most cars that are not designed to be a turbo can't cope with the underhood temps associated with the turbo and extra exhaust winding all over the engine compartment.

2. You live in the land of Cosworth, which has a great product and good support. also helps with time zone stuff as well a language, when you need assistance.

3. It seams like you REALLY want to go turbo. If that is the case, and you are willing to do some extra work and maybe deal with some issues during install and down the road, it might be worth it.

After all, the whole point of this is to have the car you want, and if a supercharger isn't going to make you happpy, why spend all the money and time, if in the end, you really aren't psyched about it.

(full disclosure, I am running an Edelbrock SC on my FRS, and I love it. I wouldn't trade it for a turbo, if you paid me)

Yes I don't fully understand either, my mind is set on turbo mostly out of preference, I currently drive turbo and I like the way it is, yes I might miss on SC (never drove one and probably never will) but again, preference.

As per Cosworth yes I know and they are relatively close to London too so it might be an option, if anything for them to build a custom turbo or something if they are willing or something along those lines.

[johan]

Originally Posted by mitch t

1. I've rarely if ever seen an OEM retrofit turbo, though there are several SC kits available from TRD as well as GM and Ford. I imagine that is is because most cars that are not designed to be a turbo can't cope with the underhood temps associated with the turbo and extra exhaust winding all over the engine compartment.

While I can't say your hypothesis is completely incorrect, I would wager that the real reason is the EPA. Considering it is a felony to remove any original equipment emissions device - a supercharger becomes your only real option for a street legal, carb/EPA approved, OEM retrofit.

[johl]

Have a look at sydney motorsport engineering on Facebook. Most aussies use their turbo kits. They offer a race and road spec option and can make single and twin scroll manifolds.

There is also a kit made by coyoda. However there isn't much info on Google about this kit

[EAGLE5]

There is a CARB legal turbo from Works. $4900. They actually use Tactrix to tune, which stuns me.

[Matt@Cosworth]

Originally Posted by johl

I'm not sure where you are looking but there are many options for RHD turbo. Literally everything except the ptuning kit will fit.

Here is a company from Australia that sells a kit which looks almost identical to ptuning.

thats a neat looking kit, just the remote wastegate exit that needs sorting so its not exiting under the car and gassing the occupants out in traffic
however a GTx30 is a very large turbo for a 2.0 ltr engine and road use as it won't spool up until 3500rpm or so as I don't think its the twin scroll option

however I have yet to see anyone trying the anti-lag option thats available with these cars.........

[mitch t]

Originally Posted by johan

While I can't say your hypothesis is completely incorrect, I would wager that the real reason is the EPA. Considering it is a felony to remove any original equipment emissions device - a supercharger becomes your only real option for a street legal, carb/EPA approved, OEM retrofit.

There are CARB legal turbo kits out there, from aftermarket manufacturers. I have no doubt that the car makers could build an EPA compliant turbo upgrade if they chose to spend the time and money, but the difficulty and cost involved, as well as other factors already discussed, steer them toward the SC.

I think the bigger point is that they both have some adavantages, you just need to decide what your goals are, and work towards that.

Either way, my recommendation is to spend the money up front and get the best quality parts (or kit) you can get, to avoid d problems down the line.

[johan]

Originally Posted by mitch t

There are CARB legal turbo kits out there, from aftermarket manufacturers. I have no doubt that the car makers could build an EPA compliant turbo upgrade if they chose to spend the time and money, but the difficulty and cost involved, as well as other factors already discussed, steer them toward the SC.

I think the bigger point is that they both have some adavantages, you just need to decide what your goals are, and work towards that.

Either way, my recommendation is to spend the money up front and get the best quality parts (or kit) you can get, to avoid d problems down the line.

Aftermarket availability is irrelevant... OEMs are way too smart to waste their time/energy on that. A turbo post catalytic converter is madness.

[Tokay444]

Originally Posted by johan

Aftermarket availability is irrelevant... OEMs are way too smart to waste their time/energy on that. A turbo post catalytic converter is madness.

Don't STI's all run the turbo post cat?

[johan]

Originally Posted by Tokay444

Don't STI's all run the turbo post cat?

No, no they don't.

Subaru made that mistake on the 02-05 WRX and then removed it after the cats were failing and destroying turbos. They likely did it specifically so they could bring the WRX to market in the states and didn't do enough R&D to realize it wouldn't last.

So don't delude yourself into thinking it's a good idea. It's not.

[Decay107]

Originally Posted by johan

No, no they don't.

WRXs did until 2006. 3 cats



Edit, god damn your ninja edit.

[Ultramaroon]

Upon review, the ruling stands. Point - johan.

[johan]

Originally Posted by Decay107

WRXs did until 2006. 3 cats

That pre-cat should be labeled "fuck show".