Sup guys

my buddie had this Idea, it would be cool to run ITB with Individual turbos? I dont know how practical it would be, still would be cool.

^(awnswer this first)


second, I was thinking maybe different size snails on each one, starting small on each one and getting bigger I wonder how that could work?

anyways just wonder what you guys think

thanks
~AMH

* * * * * * * * * * * * * * * UPDATE * * * * * * * * * * * * * * *

ok Thanks to 88turdbucket, we have photos




Modified by amh0001 at 9:05 PM 10/21/2004





OK guys let me know if the photos work?

~AMH


Modified by amh0001 at 9:09 PM 10/21/2004

 

1 turbo per ITB is impratical..
No space..
1 cylinder driving each turbo = Crazy Lag ..U would have to use tiny turbos to have little lag..but then u wont have any top end..
Too much $$ /and fabrication needed..
__________________________________________________ __________________

Alot of Nissan motors come ITB Turbo from the factory..
Gives great throttle response..
But they end up switching to a single large throttle body when trying to make high HP.
But for a honda.This has been discussed before in F/I forum...
zerothread497862
zerothread473099
zerothread692046
zerothread752629
zerothread994144
zerothread1009352

And theres a video of a Turbo GSR on H-T
11.5:1 CR,
ITB,
9200RPM redline,
Boosting at 12 psi...

Click Me for Thread With Video


Modified by Mrspeaker at 4:29 AM 10/19/2004

 

Well, you could have a small turbo and still have some top end b/c they would have to push less air b/c there is less air going into the engine (from each turbo of course, only 1 cyl to feed) Could be done but why?

 

ya it could be done for show purposes i geuss, it would drive down the road, but to make the turbos truly only feed the cylinder that it is getting the exhuast gases from it would need to be non intercooled or each turbo would need its own intercoolers, so basically it would be a for looks type of deal not a performance application,

i gather from the different size turbos question that you probably don't really know how turbos work in short no that would not be a good system

just some food for thought if you want multiple forced induction systems you can turbo charge and super charge a moter its called twin charging there used to be a kit for that for mr2's

 

this reminds me of the turbo+supercharger idea. It wouldn't be efficient or terribly fast, assuming of course that it would be tuned. Interesting none the less.

 

Theres a turbo car with itb's in the forced induction forum.

 

its possible but people say it is very hard to tune

 

it wouldn't be very practical at all... sounds like pot philosophy to me...lol

also stepping up a size turbo per cylinder also sounds like pot philosophy..... think about un clouded. 1 can push 2psi 2 can push 4 psi 3 could push 6 psi and 4 can push 8 psi....where is the benefit? none of the turbos help eachother. there is no benefit .... run 1 big turbo to feed all and its that simple. if it was worth it don't you think this idea would have been tested?

simplicity is bliss.

 

lol i was about to say the same thing...this guy must have smoked himself retarded...i can see where hes coming from wit the smaller turbos for each....kindof like a twin turbo setup there is less lag...but like everyone else said that **** will cost a lot and be pretty impractical...but im just gonna say this..."you wont dooooo it"...prove everyone wrong...id be the first to **** myself

 

The individual throttle plates will cause huge restrictions which is why hardcore Skyline GTR tuners ditch the stock ITB set up for a single masive TB and manifold

With a properly built motor throttle lag will be almost non existent will still giving you more power than your tires can handle

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by na 1.5 &raquo;</TD></TR><TR><TD CLASS="quote">The individual throttle plates will cause huge restrictions which is why hardcore Skyline GTR tuners ditch the stock ITB set up for a single masive TB and manifold</TD></TR></TABLE>

please show me all the Skyline people that are doing this... they must be crazy. ITB setups allow you to get faster Throttle response that is what the purpose is.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by na 1.5 &raquo;</TD></TR><TR><TD CLASS="quote">With a properly built motor throttle lag will be almost non existent will still giving you more power than your tires can handle </TD></TR></TABLE>

i don't think this is a completly true statement. because there are so many things involved with the speed and function of the throttle. The best built perfect motor could have throttle problems.... like the bliping of the throttle can cause a bog the was not forseen during the build, but its there.....................


Modified by manson at 3:32 PM 10/19/2004

 

doesnt sound worth the trouble

 

It was just an interesting Idea. I knew it was way inpractical. Thanks for the info.

~AMH

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by manson &raquo;</TD></TR><TR><TD CLASS="quote">please show me all the Skyline people that are doing this... they must be crazy. ITB setups allow you to get faster Throttle response that is what the purpose is.

i don't think this is a completly true statement. because there are so many things involved with the speed and function of the throttle. The best built perfect motor could have throttle problems.... like the bliping of the throttle can cause a bog the was not forseen during the build, but its there.....................


Modified by manson at 3:32 PM 10/19/2004</TD></TR></TABLE>


Never hear of anti-lag? They have them in rally cars. And as for a street legal setup. Toyota released a Celica back in like 91 with an Anti-lag turbo system. Blip the throttle all you want, the power will still be there with all-motor throttle response.

 

Any honda with less than four turbos is going to be slow, obviously.
-PHiZ

they should have turbos with vtec, with like two compressor wheels , they when you hit a certain RPM, you have a hydraulic actuator that engages turbo vtec!!!! OMFG!@$

 

Wonderful idea ......... for me to poop on

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mercuryfrost &raquo;</TD></TR><TR><TD CLASS="quote">this reminds me of the turbo+supercharger idea. It wouldn't be efficient or terribly fast, assuming of course that it would be tuned. Interesting none the less.</TD></TR></TABLE>
actually lancia used to have a rally car with both a supercharger and a turbo...the supercharged would boost at low rpm and then turbo would take over for high rpm...complicated but was effective

 

if you guys want to read a little about twin charging here ya go http://come.to/twincharger

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PHiZ &raquo;</TD></TR><TR><TD CLASS="quote">they should have turbos with vtec, with like two compressor wheels , they when you hit a certain RPM, you have a hydraulic actuator that engages turbo vtec!!!! OMFG!@$</TD></TR></TABLE>

altho it was a joke.. that's actually a rough description of what the Garrett VNT system is supposed to accomplish

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by manson &raquo;</TD></TR><TR><TD CLASS="quote">

please show me all the Skyline people that are doing this... they must be crazy. ITB setups allow you to get faster Throttle response that is what the purpose is.

i don't think this is a completly true statement. because there are so many things involved with the speed and function of the throttle. The best built perfect motor could have throttle problems.... like the bliping of the throttle can cause a bog the was not forseen during the build, but its there.....................


Modified by manson at 3:32 PM 10/19/2004</TD></TR></TABLE>

"FORCED INDUCTION"

The inlet size is still only as big as the cylinder head ports so you have now 6 restrictions instead of 1. On an N/A motor with proper cylinder head, block and fuel upgrades it would improve (however your switching from 1 60mm inlet to 4 38-42mm inlets so a huge injector for proper tuning will be needed and will not exhibit low speed throttle response, unless you mean noise which I think most people do)

here is JUN's (not on a skyline but it's the same thing"



Tomei's GT500 design which increases flow by 10%



I could prolly dig up some more

 

there is a car that is on the cover of hot rodding magazine, taht has a small block 350 with 8 individual turbos, but they are small turbos. i can send pics of it to someone if they will host them for me..

 

the old cvcc's used to have that mod. cost a penny but it was done

 

if you send them too me ill host them for you amh0001@yahoo.com

 

twm forced induction custom manifold.

if you want to run 4 turbos. good luck

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by na 1.5 &raquo;</TD></TR><TR><TD CLASS="quote">

"FORCED INDUCTION"

The inlet size is still only as big as the cylinder head ports so you have now 6 restrictions instead of 1. On an N/A motor with proper cylinder head, block and fuel upgrades it would improve (however your switching from 1 60mm inlet to 4 38-42mm inlets so a huge injector for proper tuning will be needed and will not exhibit low speed throttle response, unless you mean noise which I think most people do)


</TD></TR></TABLE>i don't think you really know haw tb's work, if you have 1 60mm tb each cylinder gets 60mm's of throtle body cause only 1 cylinder is in its intake stroke at a time and they share a commen plenum, so basically having 4 42mm throttle bodys on seperate cylinders is not the same as having a 164mm trottle body, each cylinder on itb's is actually getting less tb but more air velocity