ITB with TURBO

[040501912]

anyhow, i was just thinking will it be good?

what i know ITB (trumpets) is good for N/A wonder if its be good to with turbo :p or is it Possible.

any idea how to put it together? can trumpets be BOXed and chaneled to 1 opening where the intake pipe can go through? or it will be suck coz restrict the air.

Cheers ;)

[IZY-10]

i dont think it will work! if you connect the trumpets all to the one pipe it will be back to act like a normal intake manifold

[VTi_b0i]

lol tecnhically its possibly but alot of custom work would be needed

[aaronng]

Just go look at how the M5's ITBs are boxed up. :)

Turbo or no turbo, it will still work. Benefits will be different since you can flow enough air using a turbo. The gain will be at the rpm range before the turbo spools.

[040501912]

hemp .. intresting :p

coz i've been google - ing cant find ITB with turbo lol ...

is it worth doing it? or better of with larger throttle body? with PnP on it?
i think they come down almost the same price ITB arround $2000 *I think*
other wise get new over size TB n bigger butterfly then PnP it.

[TheFranchise]

Pulsar GTiR have ITB and a turbo....so it is possible.

alot of money buys anything u want....hehehe

[EuroAccord13]

Or get 4 mini turbos for each TB.......

[eg92b16a]

A turbo for each cylinder..... Hmmmm
4 exhausts too.... Phat.
4 blow off valves, 4 wastegates.... That would be awesome...
But where would the 4 intercoolers go ??
Someone please do this.

[040501912]

AHAHAHAHAH ...

mini turbo Zzzzzz... from what ? modified snail shell? LOL !!

if im a milioneer im doing it :p

[Muzz]

hemp .. intresting :p

coz i've been google - ing cant find ITB with turbo lol ...

is it worth doing it? or better of with larger throttle body? with PnP on it?
i think they come down almost the same price ITB arround $2000 *I think*
other wise get new over size TB n bigger butterfly then PnP it.

Tony the tiger on honda-tech runs itbs with a garrett gt28.
They dont offer very much in the way of power gains compared to on a na car, but the throttle responce is greatly improved.

[aaronng]

A turbo for each cylinder..... Hmmmm
4 exhausts too.... Phat.
4 blow off valves, 4 wastegates.... That would be awesome...
But where would the 4 intercoolers go ??
Someone please do this.

The Bugatti Veyron does this. It has 1 turbo for each of the 4 banks of cylinders (and an intercooler for each).

[aaronng]

hemp .. intresting :p

coz i've been google - ing cant find ITB with turbo lol ...

is it worth doing it? or better of with larger throttle body? with PnP on it?
i think they come down almost the same price ITB arround $2000 *I think*
other wise get new over size TB n bigger butterfly then PnP it.

If you are going turbo, you're better off spending the money on a better turbo, intercooler, proper standalone ECU + tuning, forged pistons and rods. Why bother with PnP when the benefits are minimal on a turbo engine? Boring out your TB is ok though, since you'll get more flow at lower boost pressure.

[040501912]

hahah good idea..

i had turbo already, just thinking what can i do with TB

great rply guys thx :)

[2002 TeGgY]

can you have ITB'S and a FMIC?

[Muzz]

^^ of course, its the same setup as without the itbs, except the throttle bodies are now in the runners of the intake manifold, instead of a single one at the enterance.

Id rather spend the money elsewhere as aarong mentioned for better gains, although it would be great for a car like the mines gtr which is built for responce with a massive budget.

[euroasia]

also gtir does not have ITB, they have quad throttle bodies.

[aaronng]

also gtir does not have ITB, they have quad throttle bodies.

Quad throttle bodies = 4 throttle bodies.
On a 4 cylinder car like the GTIR, that means it has individual throttle bodies or ITBs. :)

If it was an 8-cylinder car having 4 throttle bodies, then it will be called quad throttle bodies and not ITBs.

[eg92b16a]

The Bugatti Veyron does this. It has 1 turbo for each of the 4 banks of cylinders (and an intercooler for each).

So someone should do this to a 4 cyl honda and get 1000hp without the thirst of 16 cylinders.. Could definitely be possible as the old F1 cars put out sh*t loads of power from 1.5L with 1 turbo. Only prob would be traction..:eek:

[creativepunka]

it would be great for a car like the mines gtr which is built for responce with a massive budget.

Most of the big hp GTR's ditch the ITB;s. IMO i would just go a big plenum with trumpets and run 2psi more and get better hp/$ lol. ITB with boost are a waste of money.

[Muzz]

Most of the big hp GTR's ditch the ITB;s. IMO i would just go a big plenum with trumpets and run 2psi more and get better hp/$ lol. ITB with boost are a waste of money.

Yes correct, most of the big hp gtrs ditch the itbs, in alot of cases you can get better flow with the big single throttle body. In cases where responce is deemed more important than sky high power figures ie, circuit racing, the itbs are usually kept. Just like in the mines gtr.

I agree it would be a waste of money on a honda, much better spent elsewhere. Re-read what im saying;)

[euroasia]

Quad throttle bodies = 4 throttle bodies.
On a 4 cylinder car like the GTIR, that means it has individual throttle bodies or ITBs. :)

If it was an 8-cylinder car having 4 throttle bodies, then it will be called quad throttle bodies and not ITBs.


oh yeah, that makes sense. I've never heard or read of people calling it an 'ITB' setup, cause we usually refer in it's other term.

well then, speaking from experience (i guess), ITB with turbo = :thumbsup:

[iamhappy46]

ITB's + boost are great when your mid corner, with partial throttle and the trubo is supplying enough air to eliminate vacuum in the intercooler piping. Open the ITB's fully and there is no plenum to fill with air before pressurising the cylinder, only a short runner between then throttle plates and the intake valves.

With a single TB, pressurising the inlet plenum takes a while and there is no instant 'boost' of the cylinder until the manifold is filled with air.

This is where the throttle response comes in for the circuit tuned ITB GTR's and the rally bred GTiR.

[zco]

what ever happened to your full sick SSS
you should have broken all your bones by this stage as an excuse not to run your car down the 1/4

[040501912]

lol @ ^^^

[iamhappy46]

what ever happened to your full sick SSS
you should have broken all your bones by this stage as an excuse not to run your car down the 1/4

My SSS is in Sydney(monavale area) right now actually, would of been at WSID the last two wednesday nights except for the weather and that I ended up working.

[simonnowis]

i dont think its possible. but maybe with alot of $$$ you can give it ago. however i reckon if your going turbo youd be better off on other mods.

[yourfather]

also gtir does not have ITB, they have quad throttle bodies.


Quad throttle bodies = 4 throttle bodies.
On a 4 cylinder car like the GTIR, that means it has individual throttle bodies or ITBs. :)

If it was an 8-cylinder car having 4 throttle bodies, then it will be called quad throttle bodies and not ITBs.


lol @ ^^^

Absolute complete and total pwnage

[hilz]

^^^ i second that lol.......

[TheSaint]

i know this thread is extremely old ... but why start a new thread when some ground has been covered

i have been working on designing an ITB -IT -IC setup for a honda 4 cyl engine

its all theoretical, its kind of a side project as i study engineering at tafe

here is a quick scetch before i put it into cad, this is a concept stage and does not reflect reality in anyway ... i just wanted to get something on paper

(its actually the result of boredom in class but meh lol)

http://i400.photobucket.com/albums/pp81/the_saint7/ITBTURB4CYLDRAFT.jpg?t=1266818516

[JasonGilholme]

won't work, not enough flow to turn the turbos.

Its a very simple thing that has already been done by MANY manufacturers.

Its just like a single turbo setup but instead of having the TB at the opening of the plenum, each runner of the manifold has its own "INDIVIDUAL THROTTLE BODY". hence the name.

The only thing that is different between the setups is the intake manifold. Everything else can be kept the same.

[vinnY]

run one of these (http://www.tweakit.net/shop/index.php?cPath=57_49_84_156) for your boosted itb setup :)

[TheSaint]

what about 1 turbo per 2 cylinders?

and adding intake plenums?

http://i400.photobucket.com/albums/pp81/the_saint7/2TQTB.jpg?t=1266824350

[nigs]

Are you proposing to have the same setup as a RB26. i.e 2 exhaust manifolds, with 3 exhaust ports feeding them (2 in your case)?

Que H22, twin TD04 setup.

Done and dusted mate. I believe this was Lay's (sp?) old setup which he sold to some bird cause her boyfriend thought it'd be cool.

Smoked me in 3rd, with the wheels still spinning. Insult to injury, "it was low boost".

Happy Days.

[TheSaint]

so this has been done on a H22?

anyone got a link .. would be interesting to have a look

[040501912]

the dead resurrection is here.. lol

instead of ITB could be better with custom build manifold with custom runners and polished inside ;)

[OMG.JAI xD]

Just run a sequential twin turbo setup. Very small turbo for low rpms and a mild sized turbo for the top end. Just when boost equalise make a valve that stops the small turbo from feeding into the IC piping but instead force feeds air into the bigger turbo.

Dont think thats been done yet. Only cause twin scroll turbos were invented. Pretty much does everything with one turbo. And people prefer twin charging which gets boost from throttle opening to redline.

[DLO01]

Heres a sequential twin turbo diagram:

http://www.cycloneinjapan.com/upload/files/43/Turbo_Sequential.jpg

[Sexc86]

how does the air from the primary turbocharger get cooled?

[DLO01]

Both primary and secondary are cooled and go through the Intercooler.

Take note of the Red and Blue colours. This is when the revs are up a bit and the Secondary turbo is in action. Note the valve cutting off exhaust supply to primary turbo and also valve cutting off intake supply from reversing back through primary turbo.

[TheSaint]

GenIII Subaru Liberty B4
2.0ltr Sequential Twin Turbo Boxer Engine

theres a really bad turbo lag spike between the 2 turbos, the setup is more designed for towing than power ... must guys convert them to single turbo lol

the point was more about the ITB's ... not the turbos, trying to get the most out of each cylinder

but unless i can come up with a big innovation it looks like its either already been done or doesnt work ... ill keep sketching and thinking about it

[A-man]

im against twin turbos now.

ive had a 1jz. and i would just do the single job. uve got less problems because less heat, less piping, less heat, less oil lines, less cooling lines, not to mention space problems.

once uve got 1 turbo in the bay of a civic. all the power to u if u can get the 2nd one in there.

i dont like being the wet blanket but for the size of the engine, the dramas i had with me STOCK twin turbo kit, the size of the engine bay etc. i dont see it worth it but the itbs is a good idea

[TheSaint]

from my point of view its all just theory and congesture

God only knows how it would ever fit in a car ... i just enjoy visualising ideas lol

for my it was more about the ITB / turbo per cylinder idea ... but spooling problems kill that

i wonder if you can pre-spool the intake side of the turbo with an electric motor than set the exhaust side to kik in at certain rpm?

like vtec but for a turbo or a hybrid turbo-super charger

[JasonGilholme]

the RPM of the electric motor wouldn't keep up. Turbo's spin higher then 100,000 RPM alot. And getting an electric motor to do that wouldn't be easy.

[TheSaint]

what about running all of the turbos on a drive shaft until a certain rpm ... than letting them free spin?

[vinnY]

sounds like a centrifugal supercharger (http://auto.howstuffworks.com/supercharger4.htm) without the free spin idea