im going to be doing a 3 rotor transplant into an fd.i have a huge discussion on the other forum.but i wanna get some advice as far as turbos should go.



ive talked with innovative they considered a gtb88



brian at rotorsportsracing considered 2 to4e's



ive considered a t51r spl



now im thinking of something else

i am aiming at 1000hp on a bridged 3 rotor.



ive now thought about going with 3 smaller turbos with integral w/g's each with a different size a/r or compressor,also set at different boost levels.



for instance 3 td05's ,2 16 g's, and 1 with a 20g killer.the integral w/g wouldd help clear up alot of plumbing.plus if they are all set at different boost levels they would making power through the rpm band.



what im looking at is spool up effeciency per turbo.and hp capability.



im thinking this would work kind of like a mechanical seq. setup.all turbos would start making power at the same boost level.



for example:



turbo 1:5psi-10psi-15psi

turbo 2:5psi-10psi-15psi-20psi

turbo 3:5psi-10psi-15psi-20psi-25psi



im thinkin this would work.each supplying enuff power till the next one up gets to its specified boost level.each having its specified rpm area.i think im gonna have to talk to that one company that built rob johnsons tri turbo supra.

kinda of like the stock fd setup. But isn't that setup shitty? Sounds like quite a plan u got setup there. I don't know jack about turbo's but i like the 2 to4es idea.

that's plumbing nightmare! Stick with a T-72 from turbonetics(single turbo ONLY) and you'll get 700+ rwhp with decent boost on a STOCK motor.



Bridgeporting a 20B is completely unnecessary. You'll make TONS of hp with just a streetport and exhaust port.



If you REALLY want to run more than 1 turbo, I suggest 2 T-04R's or 2 T-66's...

that looks like one of them thar racing beat motors, its a 13g, not a 20b



mike

yes but 2 t04r's would be quite laggy.i might as well buy another t78 and go with twint78 setup.i want some streetability. isnt a t-72 have a smaller compressor side than a t78?why would i go smaller?



i know as far as the streetport.



but i want copius amt's of power.



i will bridge and exhuast port it.



what would be the lag on a single rotor with a bridge and an exhuast port spinning one td05?



i know axia has tri 2835's(ball bearing td05)on a bridge making 900 ps.

You're not really going to be able to make 1000 HP AND have minimal lag very easily.

what is a 13g? 2 13bs spliced or what?

i think it was like the racing or prototype version of the 20b

take a 26b and knock a rotor off.



hey ace what do u recommend going with then?i would like to have some good boost by 4k rpms.i would want integral w/g's also.or should i go with 3 tdo6's and a single hks racing w/g that is able to support 1000 hp?

how would i not get 1000hp?what hp range would i be in?axia used 3 bb td05's a bridge and 24 psi to accomplish 900 hp.

The HKS GT wastegate should be able to fit the bill since you're planning on running so much boost anyway. I know that you could get 1000 HP. People are getting closer to that everyday with 13Bs. :o You didn't define what you meant by minimal lag. 4K RPM's is a fair number. 3 T3/T4 hybrids would probably do a nice job because the T3 turbine section will spool quickly.



A big single is usually easier to select, but the 3 turbo setup may yield better results. I picked up a Garrett T-76 (not the same as a Turbonetics T-76), and the specs seem great for a 20B, but I'm trying it on a 13B. I hope I at least make full boost by 5500-6K. If I ever get the manifold finished and do the motor I can let you know how it would translate to a 20B.

So you want a bridgeport, boost at 4000 rpm's AND streetability?



I don't know how that's possible...A bridgeport for the most part is unstreetable...I have heard one in person...It's louder than most competition sound systems...

dont know much about this subject but i do have a pic that might help

like I said...plumbing nightmare...and to deal with that on a daily basis...IMO, I would forget about it...I'd get just as much power from twin T300S's...

it wouldnt be a daily driver. just a weekend money maker like down in myrtle beach where everyone shows their ass.



depends what u would call streetable. to me a bridgeport would be fine.my car is already loud as hell.and its scca legal.anything but a pport.



hey ace that would relate to about 4k rpms on a stock 20b if u r getting 5500-6k on a stock 13b.its the same with the t51r.i talked with m2 about it.



and as u notice by that pic it doesnt take a huge friggin radiator to maintain a 20b.plus i will be v-mounting radiator/intercooler and have a scoot hood on the intercooler's top side.a ice tank on the bottom side.this will take me a few yrs.i found a site that sells the carbon fiber doors and 3 rotor cores ive been wanting.i dont need the whole engine.especially when i would trash the rest anyways.



im dry sumping the 3 rotor and pushing back 5-6 inches.this will put it in stock position.plus i wont have the manifold in the way of the firewall.



i will go with an electromotive tec 3.



yknow the funny thing is when i explained this on the other forum.i had alot of ppl backing me and then came jimlab.hes cussing me and downing me for everything im worth.nothing but a dream that i wet myself to at night and regurgitated while i was on the shitter.



but i definitely will keep u guys posted on whats going on.its gonna be a shame though.i gotta go somewhere for uncle sam for 1 yr or less,thats all they would tell me. so i gotta start when i get back.

Your basic plan sounds good. Now all it's going to take is time and money. I'll definitely post my results with the new turbo whenever I get it in the car. If definitely has 700+ HP potential on a 13B. So it would easily get you what you want. The only question is the spooling time. If it spools too slowly then I'll throw in a smaller exhaust housing.

the 20b has more torque down low so a laggier turbo wont be that big of a deal.



mike

Yeah, that's what's so nice about them.

well ill also be running a 3 plug option.i will have 2 leading's side by side and a trail.i dont even know if i will want to run a trail.i might just use it to cover the hole.or i might run all 3 non split.unsure at the moment.

Are you doing the conversion yourself or are you taking it to Brian at Rotorsports? I might have to swing by Fayetteville when you get done, i'd love to check it out.

That's where I'm bailing out of this thread. https://www.nopistons.com/forums/pub...1047683785.gif

im actually not in fayetteville anymore.im by charlotte now.yeah i talk with brian about but i will be doing it myself.when it gets done it will be down in myrtle alot.u can cum up here when i can more into it though.that will be cool, u can help me im buying.

Well, since it's not going to be a daily driver car, then it's possible...definitely feasible, but you're the man...I like sticking to the basics...I'm inventive, but not THAT inventive. https://www.nopistons.com/forums/pub...>/rolleyes.gif

talked to some nascar buddies at the shop and they will be apart of it.they said basically it will be easier and lighter to go with a tubed front clip.this way i can keep my wet sump system,and lower the engine as much as possible.plus they will be putting in a radiator with a an internal oil cooler also and this thing was 3-4 inches thick.i asked about the suspension which im also heavily modifying and they will work it out to where i can go blazingly fast around a corner.

I know! How about five sequential turbos!! One for each gear! J/K https://www.nopistons.com/forums/pub...>/rolleyes.gif



It'd be awesome if you could pull this off but it sounds pretty iffy to me. I mean fitting a 20B in an FD is gonna be tough enough but three turbos? Especially with the kind of boost numbers you are wanting to push, those are going to be big turbos.



Do you just have $100,000 sitting around you need to get rid of or something?

or is there anyway i can take my t78 and send it in to get worked on to make it flow more air.how much hp is a t78 actually capable of on a 3rotor?ive heard 1000hp capability but ive never seen more than 650 proven hp.

You'll probably be better off with a turbo that has an undivdided turbine housing.