4 cylinder twin turbo

[metcap]

Hi all, just would like to know if a 4 cylinder engine can be moded to run twin turbos. is it a workable mod or would the lag be too much?

[Robbos_Toyotas]

Hi all, just would like to know if a 4 cylinder engine can be moded to run twin turbos. is it a workable mod or would the lag be too much?

mate it depends how many cc it is etc
like if it was a 2.7 3rzfe, im sure you could quite happily use turbos to suit a 1jz/ 2jz etc

if it was smaller you may just have to watch your rear a/r ratios.

[MR22ZZ]

subaru Liberty/Legacy B4...

[fergo308]

It can be done,but it's not worth the hassle. with only two cylinders feeding each turbo there isn't really a proper,fast gas flow going to each turbine to give any sort of decent response.

add on the cost of twice as much plumbing to a single system,the cost of buying two small turbos versus one medium sized one and it's lose all 'round.

you'd be much better off with a properly sized single. get something with a modern wheel design and a ball bearing core and it'll spin up nicely while giving good power.


justin...

[Vios-GT_07]

subaru Liberty/Legacy B4...

valley of death..

[Robbos_Toyotas]

if it was said what motor they're going on eg 3rz, im sure you could cheaply adapt small oem turbos - ie 2j turbos are worth sfa.....

[RAAAH23]

there was that 18RG kit on yahoo, that was a twin turb kit for a 4cyl dont know how effective it would be

[metcap]

this is gonna be tried on a 2t/3t hybrid, turbos are off a 3ltr v6 and size are smallish like those on the 1ggte. Turbos are capable of 1 bar on the stock engine, could I expect it to come close on the hybrid?

[fergo308]

So you're going to twin turbocharge a 1.8l that revs to 6500rpm or so with turbos sized for a 3l V6 and you're hoping it'll work well? I reckon you'll be lucky to get half a bar of boost before it hits redline.

Put a SINGLE S15 turbo on it if you want cheap,go for a GTSS/GT28 if you have a bit more cash available.


Justin...

[wagonist]

subaru Liberty/Legacy B4...

Also look into why the Liberty/Legacy GT is no longer a twin turbo, but a single

[MR22ZZ]

hence why I stopped right there with a...

anything is possible... making it good however is a very different story.

[wa5]

Also look into why the Liberty/Legacy GT is no longer a twin turbo, but a single

Perhaps someone could look this up at thier school library, after the Holidays are over...

[thanhngo]

Maybe with a twin squential from a cosmo or 13B-REW ? They do require alot of solenoids to work the transitioning properly but i'm sure that can be simplified with modern aftermarket ECU's.

Definitely gave my rotary decent torque all round.

[the_random_hero]

No real reason to unless you want to waste money. Not enough gas pulses to spool the turbo's up decently, regardless of how small they are.

[woggin]

1g-gte size turbos would fair nicely, or VR4 turbos, they are tiny aswell!!