just installed EVO3 GT turbo, here's a tip...

[sk8er629]

Longevity doesn't automatically make it a great company. AOL's been around for a long time, too.

that got a good laugh out of me

 

[PaintMunky468]

Chinese DID NOT make this turbo. That is another rumor spread by those trying to make the gt look bad. Taiwan makes it and they are known for making desent turbos. I recently put the Evo III gt on my 98 gs-t and it performs great. I am getting 14lbs of boost in 2nd-5th gear, and it pulls good. However i do need a few mods to make it spool better like 550 cc injectors and fuel pump, simply because its a bigger turbo than my stock one.

The alloy is fine, i dont plan on running more than 20 psi through it, so nothing to worry about. If you want like 35+, consider a beter turbo. But the housing is actually thicker than a ported MHI EVO III because the inlet/outlet of the gt is cast the same size as an already ported MHI, yet the thickness is the same as a MHI prior to porting.

BOTH turbos are excellent. BOTH perform well. If you want to avoid boost creep by having porting and a bigger flapper, but still want to save about 200 dollars, get the GT like I did. If you are overly hung up on having the MHI name behind your turbo, spend the extra money (if you have it) and get the MHI unit. I speak from experience, the GT is a great turbo, the install was smooth and it runs great!

 

[leet]

Let's keep it to how it performs, not on who made/designed it.

It could be made by a rural tribe of Swahili for all I care, facts are what this forum is about.

 

[Stapl3]

http://www.machvforums.com/showthread.php?t=31399

Just came across that.

 

[truwarrior]

My 14b died and I was going to replace it with a big or small 16g from the classifieds, but after almost getting ripped off of $250, I decided to just buy a new turbo. So, I searched for the cheapest alternative and came up with the EVO3 GT on ebay- turbochargerscom, website is turbochargers.com go figure. This is the same turbo as on logicperformance and rre's websites as well, and for $550 shipped I figured it'd be worth the extra few dollars to get the GT as opposed to a small 16g.

Anyways, here's my tip just in case anyone else decides to purchase this turbo. On my 1g, the bolts that hold the oil return line to the turbo were longer than the EVO3 GT was threaded for. So, I was torquing down the first bolt, only to keep on turning, and turning waiting for it to click. Well it finally clicked but then it felt Really loose all of a sudden- the bolt broke in half! Apparently the bolt bottomed out because it was too long, and I had to take the entire turbo assembly back out to get the broken bolt out with some vise-grips (not enough room for a drill and extractor.) Went to Home Depot and replaced the bolts for 50 cents with M6-1.0 x 16mm (stock is 20mm.) If I would've known that was going to happen and had shorter bolts to start with I could've saved myself HOURS of frustration.

PITA... but first impressions after installed- Very satisfied! Response is good, doesn't peter out at high rpms, and my car's faster with the EVO3 GT @ 9lbs than my 14b @ 13lbs.

Happy DSM'ing
Rommel

My car is barely faster then my friends 1GAWD at 12psi then my 2G FWD EVO III at 19 psi.

I think I'm gonna put the 450s back in and see what I can do. IDK, my car sux. I still blaming the gearing between the too though...

 

[Mellon]

interesting thread.. I was scared to buy the GT's and went with the MHI version since the price was so close.

sounds like some good feeback for the most part on the GT.. I hope they perform and hold up for you guys. A cost effective alternative is always welcome

btw, I drive a 91 Stealth TT

 

[Imp Pwr Online]

interesting thread.. I was scared to buy the GT's and went with the MHI version since the price was so close.

sounds like some good feeback for the most part on the GT.. I hope they perform and hold up for you guys. A cost effective alternative is always welcome

btw, I drive a 91 Stealth TT

the price is close, except the GT and other knock offs come ported and with the bigger WG flapper standard. That makes hem a better deal...that is if they hold up. If they turn out to last 1K miles...then it's not a deal at all. So far I am not hearing about massive failures so I think they are a good turbo.

 

[Mellon]

the price is close, except the GT and other knock offs come ported and with the bigger WG flapper standard. That makes hem a better deal...that is if they hold up. If they turn out to last 1K miles...then it's not a deal at all. So far I am not hearing about massive failures so I think they are a good turbo.

yeah I noticed the port/WG flapper difference but that still wasn't enough to convince me to take a chance on a new turbo that was untested and getting bad press. I figured I'd spend a little more and go with something I could beat on without the fear of failure in the back of my mind.

yeah there's always going to be freak failures on any turbo that comes out so the lil onesees and twosees haven't convinced me that they are indeed poorly made turbos yet.

 

[Imp Pwr Online]

yeah I noticed the port/WG flapper difference but that still wasn't enough to convince me to take a chance on a new turbo that was untested and getting bad press. I figured I'd spend a little more and go with something I could beat on without the fear of failure in the back of my mind.

yeah there's always going to be freak failures on any turbo that comes out so the lil onesees and twosees haven't convinced me that they are indeed poorly made turbos yet.

I hear ya. I look at it this way, sure there has been bad press, but NOT becuase of failures. Just the compition bad mouthing it. I have yet to hear of it being unreliable from actual users. So far a few here have logged thousands of miles without incident.

 

[truwarrior]

I'm still pissed about the gearing difference between the GSX and the GST. Screw u guys and the GSX. BTW, I have a EVOIII and it's being goin strong at 19 psi since Dec.

 

[yell-O]

I was going to buy the XSPOWER turbo but I decided not to after I did my research on their turbos. But I would still keep in mind that every company has some defective products and customer complains. But I think I would stick to the real MHI product.
following our a couple of links that made me change my mind, its a honda tech forum though but I know honda's tiny engine's dont have the power to do that :

http://www.honda-tech.com/zerothread?id=1097918&page=1

i know there was another site that I cant find right now.

 

[Imp Pwr Online]

I just broke the FWD 3S Dyno record with the knock offs

519 FWHP 487 Ft-Lbs @ 25psi FWD Record

I have had them up to 34psi at the track, but had the CAS retarded 11 degrees by accident so times were not great, 13's @ 118 stumbling down the track. THen figured out the timing was retarded and went to the dyno.

I am having REAL BAD blowout issues on C16. Engine stumbles and struggles to run after a hard run until it dries out. DIS4 HO and new non projected NGK coppers will be here tomorrow, track time friday.

Mustang Dyno-York Dyno in York PA
Ran Today
AFR average 11.5 but dips into 10.8 range in spots. More fuel to pull out.

Peak EGT all day was 900C

Could not run past 25psi-tires were spinning off rollers-spitting chunks of rubber across the room. Have pics. Some rubber across the room and on top of a table.

All runs were getting blowout and at 6K it got so bad it would start sputtering and we would shut down. Then plugs would be so wet, the engine would stumble for 1-2 minutes until the plugs dried out.

Here is one of the runs that was started at 4500 to get the upper end. Started higher in the RPM to try to avoid some of the wheel spin and get upper RPM data instead of having to abort early.

You will see the peak HP 518 and Torque 429 at 6300-6400, you will then see the power start diving. At the same time you will see that the A/F is getting rich as power dives. This is when the car was breaking up due to Blow Out. At 6700 it's so choppy the run is aborted.

Note: if power was dropping from a let off of the throttle, the A/F would shoot into lean not slowly dive into rich.

Keep in mind, the Throttle was only moderate to get it up to speed in 3rd until about 4K when the test was started, then the param on the dyno was to log from 4500+ He went WOT at about 4200+ which is why the boost starts at about 7 psi on the graph. The up and down of the boost is the ProfecB spec II. I haven't got it tuned in yet so it's still fluctuating too much.

Look at the AF on the run, It starts at 9.7 then barely makes it to 11.5 before the blow out starts. Lots more power is hiding in there.

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[Tom N]

How come hp and torque doent cross at 5200rpm`s.

 

[Imp Pwr Online]

How come hp and torque doent cross at 5200rpm`s.

The run didn't start until 4200 (WOT)
So it's a little different than a full pull from say 2500rpm

The power and torque lines do cross. but not until about 6300

Could not run past 25psi-tires were spinning off rollers-spitting chunks of rubber across the room. Have pics. Some rubber across the room and on top of a table.


Here is one of the runs that was started at 4500 to get the upper end. Started higher in the RPM to try to avoid some of the wheel spin and get upper RPM data instead of having to abort early.

Keep in mind, the Throttle was only moderate to get it up to speed in 3rd until about 4K when the test was started, then the param on the dyno was to log from 4500+ He went WOT at about 4200+ which is why the boost starts at about 7 psi on the graph. The up and down of the boost is the ProfecB spec II. I haven't got it tuned in yet so it's still fluctuating too much.

Look at the AF on the run, It starts at 9.7 then barely makes it to 11.5 before the blow out starts. Lots more power is hiding in there.

 

[boostedinaz]

The run didn't start until 4200 (WOT)
So it's a little different than a full pull from say 2500rpm

The power and torque lines do cross. but not until about 6300

What he is getting at it that the actual formula for HP would make the curve's cross at 5252 RPM. It wont matter what gear or what RPM you start at it should always cross at 5252.

 

[Imp Pwr Online]

What he is getting at it that the actual formula for HP would make the curve's cross at 5252 RPM. It wont matter what gear or what RPM you start at it should always cross at 5252.

no matter what motor or car?

 

[jim97gst]

no matter what motor or car?

Yes.

http://auto.howstuffworks.com/question622.htm

Torque X Engine Speed (in RPM) / 5252 = Horsepower

If you are at 5252 RPMs, then you have 1 / 1 on the left side of the equation, and Torque = Horsepower. Something is not right with the dyno if torque and horsepower are not equal at 5252.

 

[Steve Hebert]

Yes.

http://auto.howstuffworks.com/question622.htm

Torque X Engine Speed (in RPM) / 5252 = Horsepower

If you are at 5252 RPMs, then you have 1 / 1 on the left side of the equation, and Torque = Horsepower. Something is not right with the dyno if torque and horsepower are not equal at 5252.

Wow I never knew that - but I just looked at all my dyno sheets and every one of them cross at 5200 - cool

 

[Tom N]

no matter what motor or car?

You are a vendor with a performance shop and you dont know this???

 

[Imp Pwr Online]

You are a vendor with a performance shop and you dont know this???

yeah, I don't run a dyno, and don't visit one much. I know everybody shold be born knowing everythign in the world. Give me a ####ing break

 

[L2RTSiAWD]

You are a vendor with a performance shop and you dont know this???

That's a pretty ignorant statement.

 

[Tom N]

That's a pretty ignorant statement.

Right, I`m the ignorant one.

 

[leet]

That's a pretty ignorant statement.

How? I figure if you're going to be working on engines for a living, that would be one of the things you know?

 

[The Shodan]

Actually, turbochargers.com is pheonix turbo..

VERY incorrect, sir. They are NOT the same company by any means. Where are you getting this information? WTF

Phoenix Turbo and Turbochargers.com

 

[Imp Pwr Online]

I just broke the WORLD TRAP RECORD for the 3000GT/Stealth using cheap knockoff EVOIIIs

139.67 MPH

I think that proves something?!