stran6781

Hey guys, I was wondering what you guys think of a custom twin T66 turbo setup. Let me know because its a setup I've been thinking about for my FD.

ShortBusRiot

sounds kinda retarded

rynberg

The whole point of using twin turbos is to use two SMALL turbos for quicker spool-up with the same power as a larger single turbo.

What's the point of trying to spool up two large turbos? I mean a 13B can barely spool a T-88 by 5000 rpm. At that size, the turbo is not holding back your power output. Again, what's the point?

Tanabe

on that note... would you say 28/35's or 30/37's?

mjw

iTrader: (1)

Hahaha.. I'd love to see that on a 2 rotor, and you thought it was already a dog on the low end. That's one way to have no power band at all.

Wargasm

Once you were up to about 10,000 RPM you might make some boost hahahahaha

RX7 RAGE

iTrader: (22)

It's been done on a Supra and it was badass.

Godzilla-T78

Dont listen to all the people who talk every body down on the forums man. After sitting back and just watching 80% of them havnt got a clue what they are talking about. My t78 is at fullspool by 3200-3400rpms. If you wana a twin setup try going with a set of t3/t4 hybrids they are decently sized turbo and the ballbearing options mean quick spool.

teamstealth

yea, i dont know about two T66's, thats a little too farfetched for a 13B to spool....but two ball-bearing turbos would def be possible. Only ? u gotta ask urself is "is it necessary and productive?" will you really be making that much more power reliably from those two monster turbos over a huge single?

Wargasm

Twin turbos just aren't as good as a single IMO for what most people want to do with them. Most people seem to want a drag machine that is realiable. Uh yeah ok... so you now have two of everything to break, you need a custom build manifold, it barely squeezes under the hood, and it produces tons of heat.

Singles are simple, that's why I love mine!

Resource

The Bi-State Custom Big Twin Turbo kit utilizes two T04-E Turbos with 3 inch inlets.

ludeowner

IMO, if you have to ask if this is something that can be done, then maybe it's something you shouldn't be doing

This twin setup would be pretty complex...you could try to operate them sequentially and 'copy' the vacuum routing fot the stock setup. But you will have all the problems associated with the stock twin setup. Non-seuqntial would simplify the operation, but a 13B trying to spool up two T66s?.

I dont mean to insult your intelligence, but this is the type of project that would require a lot of know-how. I meant what I said in my first paragraph. If you have to ask, then you dont want to be messing with it. Educate yourself more, then you can make your own decision about whether or not it can even be pulled off (or just take our word for it ).

Resource

The Bi-State Customs Big Twin T04E Turbo kit comes with Inconel turbine wheels and other misc items for quicker spool.

911GT2

I couldn't agree more. The point of the twins in the first place was to have the quick spool time of a small turbo, but the higher boost capabilities of a larger one. And the reason most people buy upgraded twins is because it is cheaper than buying a single (because of all of the other hardware that goes with it). Your setup would yeild slower spoolup time than stock, and slower than most other large singles (depending on seq or non-seq) and still cost the same, if not quite a bit more, as a more appropiately sized single.

Just not worth the effort IMO.

Resource

Big Twin Turbo Kits (Not Upgraded Stock Twins) are for people who want big horsepower and the "ooooh aaaah" factor. If you want to be unique and create enormous horsepower then a Big Twin Turbo Kit is for you.

911GT2

And lemme guess, Bi-State can build it for him?

Resource

Well, we already sell a Twin T04 E (3 inch inlet) with inconel wheels for faster spool.

stran6781

My friend Keith owns the Twin T66 Supra. What about a twin dual ball bearing T3/TO4E hybrid? My friend Keith owns a shop that could fabricate everything I need. I was thinking using either Turbonetics or Innovative.

Brad

Twin HKS 2835's and 3037's have both been done before....

Twin HKS 2835



Twin HKS 3037's

Resource

That would work. Anything can be done my friend. It's just a matter of how much you want to spend. Why not go with a garrett based turbo? That's what we use on our Twin Turbo Kit and have had great success. The parts are easily attainable and very affordable.

Godzilla-T78

t3/t4 hybrids can be had for under 700bucks a peice...

stran6781

Thanks for the feedback guys. I'm planning on having a full all out custom car. I've already thought about having twin T3/TO4E hybrids by Innovative or Turbonetics, they definitely have to be ball bearing. I'm also going to get a custom twin Spearco core intercooler(one on top of the other with two endtanks from one side going out one on the other). I'll keep you guys posted on my car with some pics soon.

Narfle

iTrader: (16)

could use nitrous to spool......
full drag race car?
if not **** it
just go with the 3540 single

rynberg

Please post a dyno sheet. I have seen a lot of 15 psi T-78 dyno sheets and NOT A SINGLE ONE made as much torque (and therefore power) as a near STOCK car at 10 psi until 4000 rpm.

GoodfellaFD3S

iTrader: (213)

Those are some interesting filters on the 3037s