What is the evo III big 16g?

[DSM-Talon-John]

Ok there is a evo III 16g, I found some stuff on a evo III big 16g but two people have never heard of them before i showed them the link to them. IS there something bad I should know about them or if not why are they called that?

 

[2gGSX]

They are 16g's off of the Evo III's. Pretty self explanatory. They flow a decent amount more than a standard MHI big 16g and are pretty popular nowadays.

 

[DGajre777]

The EVO III turbo is a EVO III Big 16G. People sometimes just call it Evo III 16G.

 

[SaiyanFury]

The EVO III is a really good upgrade from the normal 14B, but it does have a few points. The biggest point you need to realize, is that it has a slightly slower spool on a factory setup. The worst thing that I've read about on my EVOIII is the boost creep issue. The best way that I know of to address this is to add proper cams. I have HKS cams on my car so it's not a huge issue on mine. But it you're planning on an EVOIII map your plan out as far as your car goes: injectors and such. If you can make your plans accordingly, and add your mods as fit, you will reap greater benefits. If you want higher RPMs, add parts to your head that will support higher RPMs that can tolerate abuse such as valve springs, and other things. I have both HKS valve springs and cams, so boost creep is not such an issue. You just need to figure out what you want from your engine, and add a proper turbo and mods accordingly.

 

[92awddsm]

The worst thing that I've read about on my EVOIII is the boost creep issue. The best way that I know of to address this is to add proper cams. I have both HKS valve springs and cams, so boost creep is not such an issue.

Boost creep has nothing to do with cams. Boost creep is caused by the inability to bypass enough exhaust through the wg before it makes it to the turbine wheel. There are 3 cures to the boost creep issue on the evoIII.
1) Use a smaller, more restrictive exhaust.
2) Properly port the turbine housing to promote flow through the wg.
3) Use an external wg mounted off of the exhaust manifold.

If you suffer from boost creep, cams will not help. In some instances, the cams will make creep worse.

 

[fourreGsixty3]

The EVO III 16G flows more then the Big 16G, the difference between the to is the inducer wheel, and exducer wheel. The MHI EVO III 16G has an inducer wheel dia. of 1.903", and an exducer wheel of 2.675", and the Big 16G has an inducer wheel dia. of 1.89", and an exducer wheel dai. of 2.68".

If you want higher RPMs, add parts to your head that will support higher RPMs that can tolerate abuse

The stock valvetrain will take 7500rpm all day, and it would just be a waste of time for him to rev past the stock rev limiter (he would also have to change that) because the 16G falls off considerably in the redline region.

I have both HKS valve springs and cams, so boost creep is not such an issue.

I have never heard of cams, and valve springs eliminating boost creep Boost creep is created from the exact reason Keith (92awddsm) said, and its prevented by the reasons he gave as well. Here are some links to vfaq on porting>>>http://www.vfaq.com/mods/porting-turbo.html, and http://www.vfaq.com/mods/porting-O2.html. Here is a nice thread going into detail on boost creep>>>http://dsmtuners.com/forums/showthread.php?s=&threadid=109324

Dustin

 

[SaiyanFury]

Oh OK sorry guys, I'm still pretty green to the whole modding thing so sorry for bad advice. I just thought I remembered a post a while back where someone said they cured a boost creep issue with cams. Sorry again

 

[fourreGsixty3]

No worries bro. I read another post you made and had a similar statement, you may want to go change it.

Dustin