RedCavz

HP Rating UP TO 575


lol

Turblow

I know thats an overrated HP number, I dont expect to see more than 320 @ 15psi with my effiecient setup

I also know its a SSAC knockoff. Im running a 57 trim t3/t04E from them right now and I love it, held great, so I'll chance it again for the sake of insane spool

Yeah I personally just want this car for the street so I dont need crazy numbers, I havent lost a race with my huge turbo yet, I just dont like how it drives, I dont like how small my powerband is

So I was thinking since Im bored anyways this winter, I might aswell build my own manifold/downpipe/backdoor intercooler setup with a cheap ($300 cheap) SSAC ball bearing turbo

Was wonderring what I could get/do with it and if ther internal wastegate was any good to somehow allow me to hold a 15-17psi range, even a way to mock it with me clocking the compressor housing

drunkinmaster1

thats right. chinese horsepower.

Turblow

Any comments on the spool time I would get with this turbo?

There are a few different sizes I think of the :"disco potato" around, what is this .60/.63 like?

Ive run a t3 .60.63 before and thought the spool was quite slow, does the ball bearing and t25 housing make the huge difference?

Tom-Guy

The only spool time estimate you've gotten in this thread is what your current turbo should be spooling at. Steve's Y8 made the first psi at 3000 rpms, and 10 by 3500-3600 rpms, off of a plain jane T3/T04E w/ .63 AR turbine housing. You have some problem with mechanical or ignition timing, exhaust leak, etc.

Why don't you fix the perfectly good ---- you already have, instead of throwing money at a ching chong meow pile of ---- that will fail you?

BLAAST

I have a customer who installed a chinese BB GT25R on his civic.

the first week, he was all proud of his new setup outputs for the price and was starting to say that chinese turbos might be ok after all. I had nothing to say but congrats.

The second week, he reported that the turbo started whinning and then grenaded with no reason. Since he did not have the money to get the real GARRETT gt25R one that's worth 700$ more, he had to resort getting a t3/t4 which involved modifying his manifold, downpipe and oil system. So he ends up redoing his setup TWICE and in the end, he DID spend more money than if he had bought a Real GT25R in the first place but he doesn'T have one.

Turblow

Maybe its because I have a 9:1 compression piston but the car is a dog off boost and when it hits to me its to late. I have no boost leaks anymore all of those are fixed. I just plain and simple dont like the powerband and I want a more fun street car. Which I believed this turbo Im looking at would accomplish

Im not asking about the integrity of the turbo. Im happy trying to use it. People said the same about my t04e and the .42/.48 i bought and they both worked flawless for me

Im curious to know if that size turbo will be perfect for what Im trying to accomplish and if boost can be regulated RELIABLY to 17or so psi and how I would accomplish that with internal wastegate

This is just a budget fun build and Ive had no problems with SSAC turbos and a 1/16th restrictor so please no more comments on that

Tom-Guy

1) CR does not effect spool time. Displacement and ignition timing, however, have a very large effect on spool time. It's a bit complex, but CR is more about peak VE and knock limit and where in the rpm band your power occurs vs cam profile. If anything, a high CR engine with everything else the same (ASSuming stock cam here) will make LESS power in the 3000 rpm range because the piston is generating more vacuum against a not-yet-open valve than a low CR setup would at that point; more pumping losses. Steve's Y8 was a stock block forged internal 9:1 engine, I repeat, it spooled fine.

2) Powerband off boost being sluggish is directly influenced by mechanical and ignition timing. Spool too late/too early is directly influenced by mechanical and ignition timing. Somehing is wrong, but it's not the turbo.

3) The turbo you are looking at will accomplish failure, and nothing else.


BTW, if you want to step up to a REAL baller bearing turbo then you need to get used to dissappointment. GT28RS will spool AT MOST 400 rpms sooner than journal bearing GT28E with the same wheels and ARs, but you should expect less. All the quick spooling hype around those turbos is they have a tiny turbine, duh. You want 1000 rpms quicker spool you'll only get it on the big mismatch hybrids like GT2540R, where the very large GT40 compressor rides a GT25 turbine + housing.

Turblow

I know my timing is a bit conservative but it isnt crazy, Im sure this is an average spool time for such a large turbo on a 1.6 non vtec. But I dont get full boost til about 5200-5300, which to me is to late for what I want out of the car

I really do appreciate your help JD

Do you have any opinions on how the internal wastegate would handle 16psi? could it hold it there steady?

I dont expect much as to the reliability of the turbo, but Id like to have a more fun daily driver where I dont have to rev out the car to make power, and then when the pwoer comes the tires just spin, Im only on azenis and shitty suspension.