Difference between turbos

[Black99GST]

ok, so i've decided to give up on the FP green for finance reasons, also because i'm REALLY tired of the T-2small.i'm still looking for upwords of 350whp, perferably about 360-380whp. So i'm trying to figure out what the difference between the MHI big 16g (b16g), and the MHI EvoIII 16g (Evo3). i understand the b16g flows 45 more cfm then a standard (small) 16g and it, the b16g, is capable of 350WHP on a good tune. but SBR is rating the Evo3 at 380whp on the street, and over 400whp possible with a race-built 4g63, yet its the same compressor, same hot side, and the same housing... so my questions are:
~Does the Evo3 and the b16g flow the same cfm of air?

~How does the Evo3 make more power then the b16g?

~Is the Evo3 worth $100 more then the b16g?

~why or why not?

Thanks guys

[NOFX0617]

The EVO 3 does flow quite a bit more air...Road Race has it right here

http://www.roadraceengineering.com/eclturbos.htm

[Black99GST]

Originally Posted by NOFX0617

The EVO 3 does flow quite a bit more air...Road Race has it right here

http://www.roadraceengineering.com/eclturbos.htm

RRE talks about the differences between the 16g and the big 16g, to my understanding, the EVO3 is different then the big 16g.
direct quote from RRE:
MHI EVO III 16G Turbo

"This is the stock turbo from the Lancer EVO III. Outwardly they look like any other 16G. They use the same compressor housing, TDO-5 exhaust wheel, and the same 7cm volume exhaust housing. Until you pop off the compressor housing... HELLO! Big Wheel. Flows 550 cfm vs. 505 cfm for the regular 16G.

The normal 16-G compressor wheel is 1.83" at the inducer and 2.36" at the exducer. The Big 16-G is 1.89" at the inducer and 2.68" at the exducer. That is just over 5/16" (8mm) larger than the normal 16-G exducer and the same size as the GReddy 18-G (inducer diameter is only .10" smaller than a 18-G)."

what they are explaning seems the be to difference between the standered 16g (small 16g) and the big 16g... and has nothing to do with the EvoIII 16g.

[solar-eclipse]

in my opinion, i would buy the evo III, 1. because you get what you pay for..

2. the evo III flows heavier than the big 16G turbo, and for only 100 dollars more, you cant lose!!

[Black99GST]

Originally Posted by solar-eclipse

the evo III flows heavier than the big 16G turbo, and for only 100 dollars more, you cant lose!!

how do you know? the b16g flows 550cfm according to SBR, and RRE states that the Evo3 flows 50cfm more then the standered 16g, which is equal to 550cfm... so they are the same? why spend $100 more on something that is EXACTLY the same? unless i'm missing something?

SBR clames to have made over 400WHP (AWD) on a EvoIII w/o nawwz which is about where i want my car to MAX out at, just over 400whp. however, they state that the b16g is good for up to 350whp (AWD) yet they flow exactly the same CFM? i just want to know HOW and WHY they are different!

[solar-eclipse]

once again as nofx stated, roadraceengineering has it right there, i may be mistaken but i doubt it



im not trying to be a smartass or anything but if your going to ask what you should get and then secound guess the people trying to help you then you should do what ever you want..... not trying to be disrespectful lol

[Black99GST]

Originally Posted by solar-eclipse

once again as nofx stated, roadraceengineering has it right there, i may be mistaken but i doubt it



im not trying to be a smartass or anything but if your going to ask what you should get and then secound guess the people trying to help you then you should do what ever you want..... not trying to be disrespectful lol

I replied to nofx's post... maybe you should read it? I’m not second guessing ANYONE! i just want to know why! i want to see some #'s! i see it like this, I could SAVE $100 if the turbos are EXACTLY the same or have minimal differences... its like the EBay intake pipe rather then an name brand one, they would the same, just $100 different in price! Why waste the money on something that could be obtained for cheaper? Both turbos are MHI, so your comment on getting what you pay for is irrelevant in this sense. I’m not trying to start a fight or piss anyone off, but you’re just telling me EXACTLY the same thing, I didn’t ask if one was better or which one I should get! I asked what the difference is! If you don’t know that’s fine, because neither do I! Maybe we can both learn something about the EvoIII turbo…

[gthompson97]

The Evo turbo will (or should) outflow the big16g, whether the difference of 50cfm is absolutley correct or not, I do not know, but it should be around that range. SBR may have put down 400whp on the e316g, but I'm willing to bet that's after MANY MANY tunes and lots of other modifications, they are cranking the shit out of that turbo and pushing it to the very max, on a street setup you'd probably see between 370-385 on a good tune with the evo, and probably around 350 on a regular 16g.

As to why it flows more, I don't know exactly, but I think it has something to do with the wheels on the inside, because they have the exact same housings. Hope that helps clear up some questions.

[Black99GST]

Originally Posted by gthompson97

Hope that helps clear up some questions.

thanks alot, it really does! does anyone know or can find what EXACTLy the differences are? how much you think i could get out of the b16g? right about 350whp? if thats the case, i think i'll go with the Evo3. although i have read that the B16g compressor housing is thicker metal and can be ported out to fit 20g blades in it. is this true? if so it is a plus for the b16g. also the b16g is much easier to find used in good shape (Thor has one i've been talking to him about) which is another GREAT +... i just need some more info on anything and everything about both the b16g and the Evo3 before i'm ready to make my decision. if anyone has any unspoken info, no matter how little it is, please post it.

[gthompson97]

Port the stocker. You won't need anything more than a stock until upwards of 500+, and even then you could still use it if you *had* to.

[gthompson97]

Upon furthur research I found out that the EvoIII has a smaller shank than the Big16g, and the compressor blades are thinner, which adds up to more compressor inlet area, and leads to why it puts out more power.

[Black99GST]

Originally Posted by gthompson97

Upon furthur research I found out that the EvoIII has a smaller shank than the Big16g, and the compressor blades are thinner, which adds up to more compressor inlet area, and leads to why it puts out more power.

that also would decrease rotating mass, aswell as overall weight reducing lag correct?

+ for Evo3...

[gthompson97]

Correct. Probably not anything noticeable in the car, but technically yes.

[Black99GST]

so that little difference in the shank and compressor blades makes up for 50+ whp??? does anyone know any other info on either turbo? (b16g or EvoIII 16g)

[gthompson97]

Whoa! I didn't see your edit until just now. The B16, EvoIII, and 20g all use the same compressor housings (TDO5H), so I don't see how porting one or the other would help at all. If you wanted to put the 20g wheel in a different housing, you might as well just buy the 20g, it would be alot easier. Same thing goes with the B16 and EvoIII, same compressor housings, but the compressor wheels themselves are different. You "could" take the Evo wheel and put it in the B16 housing and have a "hybrid" Evo, but then again, it'd just be easier to buy a turbo that you KNOW will work for sure.