twinturbo 4efte...

[Sheldon]

at least he tried it.. i wouldnt go into all the hassle as i dont think its worth it at all.. would look nice for car shows.. but powerwise i dunno.. lets see some pics and maybe he can give more details before we start slating [/QUOTE]

haha so u love the chance to jump in and slate :haha:

you know what i really meant.

 

[Spoonz]

well soooooooooooooooooooooooooooory but when your in work you ain't got time to spell check everything you type..

IS THAT BETTER

 

[GaryGT]

Relax man wasnt getting at you lad
just making a point ud blow the little 4EFTE to bits with Compound Turbocharging! i have only seen this on tractor Pulling and diesel DRAGSTERS
Great idea tho

 

[jpecc]

[/IMG]

[/IMG]
anyway i have 2 4efte's my first 4efte blew (melted/rings)... to make it short i purchased another one.. stock 4e tend to lose puff at top with ct9's i always opted to go for a biggie turbo to cure the problem but thats a hard find here the right sized one..
now i have this ct9b lyin around which bug me to try out a bi turbo. to still have the punch of a stock 4efte and a top end speed of a big turbo t3/t4 with little less lag..as you can see on the pics its kinda hard to place the 2 turbos back to back.. with a bit of scratchin and thinkin hehe there's no other place to it but near side the timing cover.. all fabricated



the top turbo its wastegate is locked and the second one is the one controllin the boost this biturbo is a simultaneous/ parallel setup

[video=facebook;1503341183947]http://www.facebook.com/video/video.php?v=1503341183947[/video]

 

[Sheldon]

hmm.. more pics of the finished product and some info ?

 

[durmz]

i like the effort, but those pics do look slightly like a diy disaster lol

 

[350ep70gr]

i like the effort, but those pics do look slightly like a diy disaster lol

Maybe it is just a mock up and little testing to see how it performs....but the way he did it (1-2) (3-4) i imagine will have two lazy ct9s low to midle till the high rpm range come...

Chris

 

[GaryGT]

i like the effort, but those pics do look slightly like a diy disaster lol

:haha::haha::haha:
Exactly
jez ive seen some attempts b4 but this takes the Golden Buiscuit :haha::haha:
fare play lad uve made me laugh 2day

 

[Sheldon]

anyway i have 2 4efte's my first 4efte blew (melted/rings)... to make it short i purchased another one.. stock 4e tend to lose puff at top with ct9's i always opted to go for a biggie turbo to cure the problem but thats a hard find here the right sized one..
now i have this ct9b lyin around which bug me to try out a bi turbo. to still have the punch of a stock 4efte and a top end speed of a big turbo with little less lag..as you can see on the pics its kinda hard to place the 2 turbos back to back.. with a bit of scratchin and thinkin hehe there's no other place to it but near side the timing cover.. all fabricated

cut the old manifold welded the 2 turbos securely with stainless piping
i port/polished it for better flow changed cams from 5efhe lightened flywheel
did some bit of trickin the ecu not to hit fuel cut done some modificaton's on the sensor to really have a good timing curve

the top turbo its wastegate is locked and the second one is the one controllin the boost this biturbo is a parallel setup and it did have good result now my top end is whew.. every rev is really screamin in drag racing ..

from starting line its still have the power of the old single turbo but when the spool of the to 2 turbo's kick in nah!!! thats what i was after for this setup..

so it worked perfectly for you? i mean you got what you where after?

any results on the stip etc?

 

[jpecc]

@sheldon ill post the results when we test this out on the drag strip.. and videos too...

thanks....

 

[durmz]

so ure using one wastegate to control the boost on both turbo's???

the ct9 can barely move enough air through its wastegate on its own, surely it must creep having two?

 

[Gryzor]

interesting work jpecc no harm in some experimenting. Any more pics of the completed build ?

 

[fastglanza]

dude good effort.. im sure u can improve etc but at least this is first attempt iv seen on the site...

some bad scientists on this site...makes me remem that wagon (i tink its wagon) with the 2 4age's from jamaica

 

[Sheldon]

@sheldon ill post the results when we test this out on the drag strip.. and videos too...

thanks....

nice! now that you started it make sure you finish it and report back

 

[TurboDave]

so ure using one wastegate to control the boost on both turbo's???

the ct9 can barely move enough air through its wastegate on its own, surely it must creep having two?

It has to be an external wastegate or the other turbo would not be able to vent any boost and would massivley overboost.

 

[accent_97]

the most common they use is this mode supercharger plus turbo here shows a 1.5 sohc hyundai powered by supercharger and factory stock garret gt 15

 

[durmz]

It has to be an external wastegate or the other turbo would not be able to vent any boost and would massivley overboost.

thas what i thought, but sure he says one wastegates welded up and the other turbos controlling the boost :S

i dont see how that would work, ever, tbh

 

[balulli356]

hi that sounds cool but i would like to try twin turbos working sequentially - 1 ct9 and a t28 with dual external wastegates , (on a rear wheel drive)
how's that sound any ideas ?

 

[shane01]

i was told by supra owners they droped the twin and went for a bigger single turbo.

 

[J25GTi]

Yeah everyone knows that. But on a small engine sequential turbos would be a massive gain. A small turbo feeding a big turbo would greatly reduce spool times and mean you can run a massive amount more power as you could run a huge turbo.

Basically a turbo powering a turbo is what you want to be looking at on a 4/5e

Supra twin tubbies are both the same size and both run at the same time. Giving a little less lag, meaning you can run 2 small turbos and get less lag but more power.