Hybrid T3/T4 turbo - any good?

[raz0r$harP.UK]

Hi,

Come across a Hybrid Turbo for sale, just wanted to see what anyone thought of it. I checked out some of the previous posts on them.

Hybrid T3/T4 550hp Wet Floating BB Turbo

Compressor Wheel .57T Housing .5 A/R

Turbine Housing .63 A/R

Supposed to be a direct bolt on for RB25..

I've been offered one for under $1000 so it caught my eyes.

[discopotato03]

Lots of lag and exhaust restrictive . Typical bush bearing TO4E/S T3 Hybrid . For what it is its not cheap . Only practical application is bolted to "She's fully sick bro" type car .

[raz0r$harP.UK]

Here's a copy of the compressor map I got..plus turbo pics..

[lukits01]

this wouldnt by any chance from

TOOFAST2FURIOUS PERFORMANCE

advertised on page 69 of Hpi no.48

would it? cause its the same specs and everything

except its $800

[raz0r$harP.UK]

hehe that's the one..I didn't know where the ad was from, my friend told me about it..anyway I don't know how to read a compressor map so I can't tell where it makes it's efficiency - can someone out there give me an idea on how good the turbo is?

[BATMBL]

the turbo flange is 5 bolts. the pattern may be different, so it may need new dump. could be wrong though

[Angry]

at 20psi .. u'll still have lag ..so the turbo wont start to come in till about 4000rpm probably .. then u'll probably run out of chuff with this one at about 6000rpm

not the best for any more boost over a bar on a rb25....

well thats what i reckon

i could be wrong ..... i was thinking to buy a similar turbo for mine .....but its too big too much lag ....

[czy18e]

How can it possably be laggy with a .63 t3 back on it.

I dont reckon.

[Angry]

ok .. well .. do it this way ..

cross reference 2.20 (Pr equivilent to 20psi/1.35bar boost) on the left values straight line that all the way to the right side.

now ..mark a straight line up from 23.5 (lbs/min at 3500 rpm) and then a second straight line up from 50.4 (lbs/min at 7500 rpm) roughly anyways.

anything that is outside of the island map is worthless its either lag, or out of its effiency.

just becoz it has .63 A/R on the exhaust side doesnt make it lag free.

Matt