namewasdallas

I just came across this video on Youtube of a Twin turbo K20, whats the point of having 2 turbos on a k20??

These turbos look way to big for it to be any good on the streets, So i figure it must just be for the factor of saying " Im a ****ing bad *** check out my twin turbo k20" Does anyone agree with me on that?

comments welcome

namewasdallas

http://www.youtube.com/watch?v=-JiSt91kXzg&NR=1

namewasdallas

well i lied the Turbos are not as big as they first appeared. It looks clean as hell but i dont get it.

Natural Aspirations

Twin turbo k20 eg hatch with JDM ITR front, how dare you suggest bling factor. It clearly is a purpode built race machine.

(I am kidding)

Looks like every fan boys wet dream.

Lewy. Dee Ayy

iTrader: (1)

He did this so he didnt have to buy an LSD the turbo on the passenger side puts power to that side of the car. The one on the drivers side puts power to that side of the car.


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:-P

namewasdallas

I guess its JDM, lol

Axix24

Are you being funny about the turbos being too big?

Vagitarian

Could be ALOT of fun

I wish I could have twins

LightningTeg

Probably pretty slow

Turborex90

The concept is cool, but it seems kinda pointless. Just curious what kind of numbers it makes though.

Garage 808 Hatch

Looks like a show car to me, therefore they probably dont care about the performance, just the bling factor for the judging

silverwrench

no offense to whoever owns that car but that thing is ugly! aqua bay, white body, cf fenders, and crazy wheels? thats a bit much for me.

habib

I was thinking the same thing

K7-1Ktrevor

dual ebay turbos? lol

ownedevo10

That sh*t is pointless... The reason someone would run a twin turbo setup like this is so that the first turbo (which is normally smaller) can help spool up the second turbo (which is normally bigger than most human heads lol) but this guy obviously has two small turbos.. The look like particularly small...

dk=gsr

saw it awhile back. those two turbos are t25's i believe.

Tony the Tiger

Sequential TT have identically sized turbos. Cars such as Supra TT, RX7 TT, have identical twins. One spools first, then the next one spools later.

Two small turbos are in fact more efficient than one big one. Sort of like why we have a 16-valve engine that's way more efficient than having 8 big *** valves.

Such as the RB26DETT, is an inline-6 engine with two identical turbos running in parallel. They also run ITB's from the factory, which does tell you what the R32/R33/R34 GTR was designed for (spool and response). The HKS GT-SS twin setup for these motors (dual BB GT25's) is probably the fastest spooling and responding setup you can ever have for a 2.6L engine and capable of 500-550 WHP, and it's layout is actually no different than putting two properly-sized twins on an inline-4 engine with similar displacement for example.

It's fun to criticize, but have to know your sh*t in order to do so...

No one really ventured into a proper TT setup on a 4-cyl. Usually due to the lack of space under the hood, the limited funds, and the goals for the car usually isn't about spool and response for a power hungry turbo Honda.

PARADOX_sf

Bigger turbos are more efficient than smaller turbos. More efficient turbo means less heat generated, less energy to spool it and less spool time.
VGT is better than ss tt

92TypeR

A bigger turbo will increase the intrinsic VE of the engine it is on, although that can work against you if you get TOO big...

A smaller turbo has its mass closer to the shaft, so the transient response of a twin turbo setup of equal mass air flow should respond better than a single turbo. However, with the expanding selection of twin-scroll turbines and new wheel aero, a medium frame single can be pretty damn responsive and make all the usable power a FWD Honda can handle...

The simplicity and reliability of a single turbo setup is hard to beat, and much less expensive. No realistic value in going twin versus single on an inline-4.

PARADOX_sf

less rotational mass but lower efficiency, single turbo is better than any just twins. I do not mean sstt setup.

Tony the Tiger

You are talking about efficiency regarding total power and flow output versus size (area of the wheels and housing).

It is not response and spool that you are speaking of... This is not something you can measure on a dyno. You need to drive a car with twin turbo and one without it, to understand what transient response it and recognize the differences.

This twin turbo topic seems to be such a puzzle for most people here. We are talking about turbos with the same technology and caliber. Not oldschool T25's comparing to a medium divided-scroll billet turbo for its current day.

The latest application for multiple turbos on a car would be a Bugatti Veyron.

The new BMW M1 also stuck to their old TT design, although the current 135i or 335i converted back to single turbo for simplicity and cheaper cost. The new single turbo version doesn't deliver the same spool and response as their predecessor, although claimed to be more emissions friendly and fuel efficient.

blackhatch1215

haha not even he got those from the flea market. lol

PhantomX

unique show car.... nothing else

96 GSR-T

That thing has to be from the West Coast, I cant see someone from the East making a terd like that.

eg:R

show car