jza70 intercooler pressure drop

[atomic rob]

hi has any one tested 2 see wat pressure drop these intercoolers have im currently running 23psi of boost on my 1j jst wondrn wat pressure ratio turbo is seeing

[BlackSupra]

Autospeed did some flowbenching of a bunch of intercoolers in a story called 'the world's biggest intercooler comparsion'.

The JZA70 intercooler allowed 265cfm to enter and 252cfm to exit the intercooler.

So thats a 5% flow drop on the test.

I have no idea how this would relate to a pressure drop across the core, however at 23psi i think its safe to say you are exceeding the design expectations of the cooler and an aftermarket one will flow alot better.

[atomic rob]

lol I know it wont be doiin to gd a job. im savn 4 a 600*300*100 core at the mo. want to minamise back pressure. I guess il jst have 2 measure it 2 b sure. It certainly has exceeded my expectations so far. hpfully wen get new intercooler and 98bp ultimate is evailible on pump il be able 2 run 27psi

[Draven]

23psi?!?

From what I've read on the various supra/1jz forums (which are not necessarily reliable) and also from previous thhreads on toymods, the numbers 13-17psi are thrown around as the most boost you would want to run on a stockie. I guess with big fmics so cheap these days the question is why wouldn't you upgrade?

[atomic rob]

i have found alot of the time even wat i would have thought was reliable sources seem 2 b wrong often "zoom hpi". all i know is wat ive tried myself im running a turbonetics t58 p-trim .58 a/r turbo on extractors i made, 4inch exhaust, a 45mm inovate wastegate 440cc injectors at 65psi fuel press jst tapped top of regulator till got desired fuel pres.1.7bar map sensor, o44 pump and a emanage ultimate that i have rd tuned with zectronic wideband and set of knock hedphones running on 95ron ulp(crap) with 10% methonol prior 2 running met mix would get mild det around 16-17 psi .nw quite at 23psi planning 2 upgade 2 550cc after intercooler. I have been told my exhaust housing is to small,running 2 mutch boost,that i should be using different reg all sorts of things that wen i actually pressure testd wernt true. apart frm having factory pump fail i hav had no other problems. so far lol touch wood

[BlackSupra]

You do need to change the intercooler next if you have gone to the trouble of going the single turbo route.

[atomic rob]

yep its definately the highest on my list at mo really lkn fwrd 2 getn it.