Big 16G or small, everyone says no way to tell???

[Stoner]

I just bought a used Big 16g, I think. Right now I am in the process of porting the exhaust housing and since it is apart there has to be some way to make sure that it is or isnt a big 16g.

Someone has to know something, I have searched the topic and everyone says that you cant tell. So if anyone has any ideas please help.

Thanks,
Ben

 

[rsr93]

take off the compressor housing and check the wheel.

16-G compressor wheel is 1.83" at the inducer and 2.36" at the exducer.


Big 16-G is 1.89" at the inducer and 2.68" at the exducer.



WTH???
who is this everyone that says you cant tell???

 

[Stoner]

I just searched under big 16g and found 2 or 3 articles where guys were asking about visual differences in the big and the small and all the replies were they were the same.

I will mic the wheels and find out

Thanks,
Ben

 

[thegreatms]

they must have ment the the outside of the turbo looked the same. there are sevela sites that list the internal differences.

 

[doug]

If somebody can visually distinguish between 1.83" and 1.89" (or even 2.36 and 2.68) if they only have one or the other in front of them (as is usually the case), I'd like to see it.

 

[EvolvingGST]

measure it...

Go look at Slowboy's comparison and measure cuz i think they have a measuring picture too.

 

[Stoner]

I Have been looking at sbr's website and I saw the nice diagrams they have, but after looking at my compressor housing it looks like it would be a pita to get it off.

Have any of you ever taken one off before?

 

[blcknspo0ln]

i personally wouldn't mess with the comp housing..

just take of the exhaust housing and measure that wheel

 

[sweet97]

Just MIC the compressor bore. You were given the figures for the wheel inducer size which will be close to the bore. 16G=1.830"
big 16G=1.892"
evo big 16G=1.902"

Simple enough. Mark

 

[Stoner]

I think that all of the exhaust wheels specs are the same the difference is only in the compressor wheels.

And will that work just measuring the bore of the intake outlet on the compressor housing. I will try that on monday at work.

Thanks

 

[Stoner]

Compressor bore measured 1.853" but I am not sure if that would be consistant all the way to the actual wheel. It looks pretty straight but I guess it could cone out some, does any one have the measurements off of their turbo?

Thanks
Ben

 

[sweet97]

Ben call Robert at Forced Performnce with your findings and he should be ablr to help identify it. mark

 

[Stoner]

I spoke to forced performance and they gave me the bad news, Its a small 16g. All I had to give them was the numbers off of the compressor housing of 05200 and they said it was definately a small 16g.

Well that sucks and I guess thats what I get for trying to save some money and not buying new from a vendor.

Thanks for all your help.
Ben

 

[CanadianTSi]

There's nothing worng with a "small" 16g...don't let the name fool you. Still easily capable of 300+ WHP.

 

[Stoner]

Yea, i know but I had my heart set on a big 16g. I just ordered a new EVO III from slowboy and I will be selling the small 16g that I have now. If anyone is interested let me know. I will be looking to get $400.00 for the turbo and it will include a 1g j-pipe stock oil feed line and one of the stock water lines(im not sure which one it is) Turbo was only run for 50 miles and is in brand new condition with a mild port on the exhaust inlet.