What do I need to do to prepare my engine for a T3/T4 Hybrid turbo?

Topic: What do I need to do to prepare my engine for a T3/T4 Hybrid turbo? (Read 2317 times) previous topic - next topic

What do I need to do to prepare my engine for a T3/T4 Hybrid turbo?

August 13, 2007, 10:43:31 AM

For now I basically just wanna replace the stock turbo. I was gonna rebuild it but a thorough rebuild kit is like $75 on ebay but I can get a T3/T4 for a little less than $175 shipped.

Also... The info on the T3/T4 says it has a .50 A/R Compressor and a .63A/R Turbine. Does anyone know what the specs are for the factory turbo that's in an 88 turbo coupe? Can you explain to me what the whole A/R thing is, I read it somewhere but don't remember what it was.

What do I need to do to prepare my engine for a T3/T4 Hybrid turbo?

Reply #1 – August 14, 2007, 08:25:21 AM

The area of the cone to radius from center hub is expressed as a ratio (AR, A/R, or A:R). So is a higher A/R better? The turbo I'm looking at has a .50 compressor and I think the stock turbo has a .60compressor.

Somebody's gotta be able to answer these questions.

What do I need to do to prepare my engine for a T3/T4 Hybrid turbo?

Reply #2 – August 14, 2007, 08:44:49 AM

this may help. there's a lot of info on here... much more then i care to type out.

http://www.turbobygarrett.com/turbobygarrett/tech_center/turbo_systems_tech_center.html

have fun.

oh, and to your initial question of what you need to do to prepare... nothing, it's a direct swap. just remember that 15psi on an ihi is not the same as 15psi on a bigger turbo. watch your boost and your timing/fuel curves. you don't want to melt piston.

What do I need to do to prepare my engine for a T3/T4 Hybrid turbo?

Reply #3 – August 14, 2007, 08:58:50 AM

Awesome! Thanks!

What do I need to do to prepare my engine for a T3/T4 Hybrid turbo?

Reply #4 – August 14, 2007, 09:03:06 AM

I'm not a turbo car owner (well I am but its just in the name) but I know that the t3 isn't a direct swap. The turbo outlet is different and either needs to be ground off or something done in order for it to work.

What do I need to do to prepare my engine for a T3/T4 Hybrid turbo?

Reply #5 – August 14, 2007, 09:09:47 AM

ok. little things like a new way to connect the vane air meter, and the vac lines that are on the compressor side. as far as the turbo outlet, you'll need a new coupler to compensate for the slight size difference. nothing on the exhaust side should change. you'll want to use a steel braided oil feed line, and you'll need a return line from a t3 equipped car, or you can buy a steel braided one.

stinger makes one.
http://www.stinger-performance.com/headerparts.html

scroll down a bit and you'll see it.

other then that, i cant remember if there was anything else... it's been so long.

What do I need to do to prepare my engine for a T3/T4 Hybrid turbo?

Reply #6 – August 14, 2007, 09:11:32 AM

I'm not worried about the inlet cuz I'm making a custom cold air intake.

What do I need to do to prepare my engine for a T3/T4 Hybrid turbo?

Reply #7 – August 14, 2007, 09:16:45 AM

Quote from: JoeNoble;168708

I'm not worried about the inlet cuz I'm making a custom cold air intake.

right on. like i said though, make sure you have provisions for the crank case vent tube.

What do I need to do to prepare my engine for a T3/T4 Hybrid turbo?

Reply #8 – August 14, 2007, 09:24:51 AM

I bought one of those small cone breather filters... Can I use that?

What do I need to do to prepare my engine for a T3/T4 Hybrid turbo?

Reply #9 – August 14, 2007, 09:28:18 AM

Quote from: JoeNoble;168717

I bought one of those small cone breather filters... Can I use that?

you can, but there's a lot of people that don't agree with just putting a filter on there. you need to draw a vacuum on it to pull the pressure out.

What do I need to do to prepare my engine for a T3/T4 Hybrid turbo?

Reply #10 – August 14, 2007, 09:31:15 AM

So it'll work but for optimal performance it's no recommended?

What do I need to do to prepare my engine for a T3/T4 Hybrid turbo?

Reply #11 – August 14, 2007, 09:36:43 AM

Dude, DO NOT buy one of those $150-200 hybrids off ebay. Trust me, they're junk.

What do I need to do to prepare my engine for a T3/T4 Hybrid turbo?

Reply #12 – August 14, 2007, 09:39:50 AM

Quote from: Red_LX;168726

Dude, DO NOT buy one of those $150-200 hybrids off ebay. Trust me, they're junk.

Why do you say that?!

What do I need to do to prepare my engine for a T3/T4 Hybrid turbo?

Reply #13 – August 14, 2007, 09:45:26 AM

Quote from: JoeNoble;168728

Why do you say that?!

is that the one you're talking about?!!!!
i thought it was a used unit that you were getting a good deal on.

DO NOT buy one of those turbos! they don't last more then a couple months... there's a reason that thousands of people absolutely refuse to put them on their motors.

What do I need to do to prepare my engine for a T3/T4 Hybrid turbo?

Reply #14 – August 14, 2007, 09:49:58 AM

Ok, so where can I get a good deal on a T3/T4 turbo? Are there any on ebay that are ok to use?