Re: Updated **Project 250bhp From 1500cc Hyundai
 

Hey hey all, Was just wondering what the Power band of your turbo's are.

1) mine is not a Uno Turbo /athlough this is the Series turbo's that they use
2) regardless of 14t or 15t i get Roughly the Same Power Figures @.9 bar boost.http://www.speedandsound.co.za/forum...=424284#424284
(3) My airflow meter is Causing Restriction/Flatlines(unlike the UT) @4500rpm Engine light comes on too.
4) No, i dont really need to know what power figures you guys are making, cos i proably already know/blank em out if you wish. Wanna See how Far your guys power bands stretch compare to mine.(Should be better)
attached some stats/Printout
5) A/F Ratio are Good on pump feul

So is it the car or is it the Turbo, Regards Shaun J (Suspecting its the Car )

Rpm 3000 3500 4000 4500 5000 5500 6000
14T Nm 150 180 235 270 260 250 n/a
15T Nm 160 190 245 285 270 255 n/a
http://www.iformation.co.za/scoupe/latest.jpg

Re: Project 250bhp From 1500cc Hyundai
 

Att:whiterice ,ososlohatch , jeffescortlx , PhilStubbs

I Spoke to the Guy who created the Reducer and he Said, its already flowing better as when at full throttle the Airflow doesnt see the Butterfly(becuase there is so much airflow) but no piont on going bigger on the reducer now if the intake Ports are still the same size and the cylinder head poryts are the same size NO Bigger power will come...

Re: Project 250bhp From 1500cc Hyundai
 

::)

Re: Project 250bhp From 1500cc Hyundai
 

i can see what you mean if the parts after the reducer cant flow as much as the reducer, then it makes sence that the engine wont make any more power with a bigger reducer. but im sure if you ported the head and intake im sure you would need to make the reducer bigger

Re: Project 250bhp From 1500cc Hyundai
 

What size are the ports.
I bet the total area of the ports are bigger than the area of the 75mm throttle body.
The reducer is the choke point. Your turbo is working harder than it should.
Good thing you have a dyno to see any difference afterwards.

Re: Project 250bhp From 1500cc Hyundai
 

I undestand what the guy means, cant flow more then the smallest link (that being the intake valve/head port). But I'd still like to see more air reach the intake mani plenum.

Re: Project 250bhp From 1500cc Hyundai
 

Okie took manifold apart the Old TB was 41mm and the HOLE in the Intake/Plenlium IS 54mm but since i put the bigger one on the flow is now 70mm-54mm which ainst so bad as i originally thought as i geussed that the Whole in the Intake/plenium was Also 41mm so is it really such a big restricion?

If u guys recon it is i can Maybee overbour the Hole on the Plenium Chamber to maybee 66mm which doesnt seem much bigger. anymore than that i will have to cut the Studs off......

Re: Project 250bhp From 1500cc Hyundai
 

it doesnt sound liek much, but the overall volume increase is a lot. i would take it as big as you can. if 66mm is your limit then i would go that big and then make your reducer that size also. i bet you will see a difference

Re: Project 250bhp From 1500cc Hyundai
 

Seems like you used alot of baller parts to reach just 200 HP. I'd step up the size of that turbo from that TD04H if you want more. The intake mani has to go.

Re: Project 250bhp From 1500cc Hyundai
 

nice set up man