is this even possible?!

[Stylin_G]

hey just wondering, I'm not thinking of doing this but.. is it possible to put 2 turbos in a 8G 4g64, to make it a twin turbo?!?! just curious. it be crazy if one can do that!

or is it possible to put a turbo and a supercharger together in a 8G 4g64

[sethmo]

Yes and Yes.

#1: Twin turbos on a 4cyl car is a no no. Not enough displacement to push both turbos.

#2: It would cost an arm and a leg and it would not be worth the money as you would use the S/C to spool up the turbo. But nowadays turbo lag isnt even that bad.

So overall both are bad ideas

[FastNFabolous]

Everythings possible if you have $$$ !!!

Single turbo = less maintenance. Why do you think a lot of them tuners w/ a TT set up switches w/ a single turbo set up in the long run, & they achieve most horsepower with it.

[sethmo]

Supra owners switch to single turbo setups because more bang for their buck. But overall on any v6 or > cars sequential TT setups are > single T setups

Seth is right. Twin turbos from the factory are generally sequential, which means that they will spool quickly, but won't ultimately produce a huge amount of boost. Single turbos will spool slower, but provide a much denser, cooler air charge = more airflow at less pressure, which is good for larger displacement engines with bigger valves, where leaning out isn't an issue.

[Stylin_G]

ok lemme get this right... so it is wiser to just go with a single turbo rather than putting 2 turbos in, because I'll get more horsepower and less maintance.

So then why does the 8G VR-4's come with twin turbos?! if it won't provide that much boost?! or are we talking about a totally different setup here and I'm just being retarded... I mean would they think about switching to single turbos then?! :puzzled1:

<div class='quotetop'>QUOTE(Stylin_G)</div><div class='quotemain'>ok lemme get this right... so it is wiser to just go with a single turbo rather than putting 2 turbos in, because I'll get more horsepower and less maintance.

So then why does the 8G VR-4's come with twin turbos?! if it won't provide that much boost?! or are we talking about a totally different setup here and I'm just being retarded... I mean would they think about switching to single turbos then?! Â*:puzzled1:</div>
you have to remember manufacturer's don't make cars to go the fastest down the quarter mile, they make cars to sell cars. On big motors, it's cool to use a twin turbo set up, because you have more than enough exhaust flow to spin the turbines. On small motors, you stick with one because you already have a limited amount of exhaust flow, and by trying to spool two smaller turbos, you end up with much lower efficiency. Two small turbos @ 10psi does not equal one big turbo at 10psi. It all comes down to displacement, and where on it's efficiency map it's peak efficiency is located. I'd go into greater detail, but I can't right now because I'm listening to flogging molly and I not really paying attention to what i type.
Maybe i'll add more later. It's too complicated to explain now, anyway.

[sethmo]

8gvr4 = 6a13tt = v6...

<div class='quotetop'>QUOTE(sethmo)</div><div class='quotemain'>8gvr4 = 6a13tt = v6...</div>
so.....?
Two small turbos cannot equal the efficiency and airflow that one bigger turbo can. Smaller turbos require more pressure to flow the same amount of air as a bigger turbo. Take a look at a flow chart sometime. A larger turbo, because it has a larger displacement, pressurizes air much more efficiently at a lower turbine RPM than a small turbo at the high RPM that is required to achieve the same airflow.

[sethmo]

We told him not to TT an i4. He wondered why the 8gvr4 was TT, I told him because it was a v6...

[Stylin_G]

ok i get it now..!

<div class='quotetop'>QUOTE(sethmo)</div><div class='quotemain'>We told him not to TT an i4. Â*He wondered why the 8gvr4 was TT, I told him because it was a v6...</div>
ooooohhhh. Good call, lol. My bad