3SGTE: ssautochrome t3/t4 any good?

[hmong337]

Originally Posted by canadam

Will you consider engine repairs due to catastrophic failure in your $/hp calculation?

still don't know if that will happen... if it does, than the kit is garbage. everything is still speculation.

[Sylvan]

If the engine fails due to improper tuning, I don't think you can fault the kit for that. That's more of an operator error.

[Adrians89MR2SC]

yea, im gonna keep it in low boost and not get on it much untill i can tune it ..

then ill get it on a dyno, tune it and see what kinda #'s it puts down ..

[mr2gq]

YOU GET UR **** DONE YET FOOL?

[Adrians89MR2SC]

lol .. naw mr2gq

ive had to take half of the damn motor apart to get to those metal water lines .. and even then the little nut at the bottom, i cant get to it with a wrench or socket .. so the oil cooler has to come off

and my distributor is leaking oil and the connector wires are messed up .. so i just got back from toyota, parts get here wednesday

and i gotta order a dist. rebuild kit from twosrus.com ..

i should have the turbo kit on wednesday night or thurday .. would of been today, but my mr2 hasnt been cooperating lately ..

[kblake]

Originally Posted by nodla

if someone could explain this to me I would appreciate it.


I am under the assumption that because the ECU will believe that you are still running the CT26 when the T3/T4 turbo is boosting it will be adding more air to the engine than is expected, despite being at the same Psi rating.

I am just worried about you leaning out and your engine going pop.

Nodla: You would be correct, if the Gen 2 engine used speed/density to meter airflow. One of the strengths of the flapper door style AFM is that it allows for changes in engine volumetric efficiency (which result from different turbos, down pipes, cams, intake manifolds, etc.) and will compensate to maintain the correct air/fuel ratio, as long as you stay within the capabilities of your fuel pump and injectors. The conservative safe number for a healthy stock fuel system is 280RWHP.

People are bolting on KO Racing's T3/T4 kit and running 14PSI right out of the box, on stock fuel, with no problems. That is why I suggested that running the SSAC kit at 8PSI is not much of a "test".

Ken

[Adrians89MR2SC]

well heck, if thats the case ill try to get a boost controller and gauge soon after i get the kit installed ..

i want to run 8 psi for the first few hundred miles (wont be long since i do about 500 miles / week), then ill turn it up to 12 or so when i get a guage, boost controller, and fcd

i was thinking that the afm might compensate since the motor doesnt run off a map sensor for the ve table / spark table in the computer like my 91 camaro does .. but i wasnt sure ..

might not take it over 12 psi untill i get a safc and some dyno time .. what would be the maximum psi for a stock motor / hg / internals .. 18-20 or so?

[kblake]

There is no "break-in period" for turbochargers/kits, you can run them full out, right out of the box.

Yes, the AFM compensates, as long as you stay within stock fuel limits.

a SAFC is not required, just a dyno with a wideband. Start at 12PSI, and gradually increase boost until the leanest part of the air/fuel curve is between 11:1 and 11.5:1. If you have any rich dips, then you might want to think about a SAFC or ROM tune, but you will be able to drive the car on the stock ECU/Fuel indefinitely, following this procedure.

Ken

[Adrians89MR2SC]

ive seen some things about a "break in" period for the ebay turbo's .. but someone might of just made it up

i just want to make sure the turbo doesnt grenade on me and throw blades into the engine (or would the intercooler catch big pieces?)

neways, sounds good about the tuning ..

if i go to a dyno, would they have a wideband i could screw in to a extra plug on the downpipe or do they have a probe like emmisions testing?

[Sang]

Originally Posted by Adrians89MR2SC

all my friends at college go to the dyno days, and that dynomax dyno tour thing comes to summit .. its around $45 for two dyno pulls ..

Uncorrected dynojet numbers please.

[kblake]

Originally Posted by Adrians89MR2SC

ive seen some things about a "break in" period for the ebay turbo's .. but someone might of just made it up

Yup. Probably a fellow SSAC owner. Obviously someone with no knowledge of turbochargers. The only reason there is a break in period on new engines is to allow the piston rings to seat properly. There are no piston rings in a turbocharger.

Originally Posted by Adrians89MR2SC

i just want to make sure the turbo doesnt grenade on me and throw blades into the engine (or would the intercooler catch big pieces?)

Too late-you bought an SSAC turbo...it's inevitable. The only question is when.

Pieces have been known to make it all the way through the intake tract. It really just depends on the failure mode of the turbo. Some die spectacularly, others just stop working. There's no way to predict.

Originally Posted by Adrians89MR2SC

if i go to a dyno, would they have a wideband i could screw in to a extra plug on the downpipe or do they have a probe like emmisions testing?

Probably both. They tend to be lazy about installing the sensor in the downpipe, but you get a more accurate reading there, so insist on it.

Ken

[Adrians89MR2SC]

lol, have yall seen that video of the turbo blowing up on a dyno .. alot of people say it was ssac, but the owner swears its a name brand .. haha ..

i know the ssac turbo probably wont last anywhere near as long as a garrett turbo, but i just need it untill i get some more $$$$ in a couple months .. (graduate high school next month and i got a job waiting for me at a collision repair shop)

should have the car done by the end of this week, then if it holds up ill take it to a dyno pretty soon ..

[kblake]

Originally Posted by Adrians89MR2SC

should have the car done by the end of this week, then if it holds up ill take it to a dyno pretty soon ..

Be sure you get the runfiles on a thumb drive. Some of us have extensive libraries of Dynojet runfiles, and we can do overlays and host the plots for you.

Ken

[jdchmiel]

actually, XS power / SSAc is a few min ffrom raleigh NC ( where i live) but it is pretty impossible to figure out where and to tak a tour.. tthey also will not let you pick items up as they make $$$ from chipping charges on many items. The only product I ever considered ordering rom them was a ct26 to t3 adapter, but i found a nice CNC'd piece on the board instead. No mo 3sgte vehicles for me though. I cant wait to see some results. Curious, what are the t3/t4 specs? t3/t4 could be a 25 lb/ min turbo or it couldd be a 65+ lb / min turbo.

[Adrians89MR2SC]

kblake - when i get it dyno'd ill be sure to do that

jdchmiel -

the specs of the turbo are on the ss website, but this is what they say and the .50 and stuff are stamped onto the turbo and the plate on the turbo says t3/to4e on it

.50 A/R Compressor / .63 A/R Turbine side

.57 Trim

3.00" Inlet

2.00" Outlet

[shimric]

Install pictures? If you've made it that far.

[kblake]

Originally Posted by jdchmiel

The only product I ever considered ordering rom them was a ct26 to t3 adapter, but i found a nice CNC'd piece on the board instead. No mo 3sgte vehicles for me though. I cant wait to see some results. Curious, what are the t3/t4 specs? t3/t4 could be a 25 lb/ min turbo or it couldd be a 65+ lb / min turbo.

Their adapter routes the wastegate where the oil filter belongs. Good thing you didn't get one.

In my experience, it's highly unlikely that it's really a T3/T4 turbo. SSAC trolls popular vendor's websites for "buzzwords", and then stamps them on their products. What Adrian most likely has, is a full T4 turbo, with a T3 turbine inlet flange. If the manufacturer knows so little about turbocharger nomenclature as to make that type of error, how on earth can they be expected to build the turbo correctly?

On a separate note, if the specs listed were actually correct, a T3/TO4E-57 compressor has been tested to surge badly on a stock VE 3SGTE, by multiple members and vendors. (but it won't spool fast enough to surge with a T4 turbine)

Ken

[Adrians89MR2SC]

Originally Posted by shimric

Install pictures? If you've made it that far.

if you actually read any of this thread you'd see im waiting on some parts from toyota and twosrus.com .. i havent even gotten to the installing the turbo yet ..

should have it installed and pics up by the weekend if my mr2 decides to cooperate for a change ..

[Adrians89MR2SC]

ok ..

got my parts from toyota today .. all the o-rings and gaskets for the oil cooler, hfh, and hfhoa

took the oil cooler off, looks like the o rings were about to give out .. they were covered in oil

got it all apart .. just cleaning it up and about to put on the new gaskets and stuff for those two metal pipes leading into the water pump ..

should have it all together tommorow night or friday .. then whenever my twosrus distributor rebuild comes then ill crank it up and see if anything leaks or blows up ..

[jdchmiel]

would it be possible for you to measure the diamter off the compressor and turbine wheels at both the inlet and outlet of them? Inducer/exducer is the term..
Therre are many charts online with these measurements, which would help ddetermin what wheels were cloned to make the turbo.