6cm2 turbine housing on a small 16g

[And_44]

This is driving me crazy. Going to be rebuilding a 16g I picked up for a good price but the wastegate flapper isn't aligned to cover the hole completely and has some cracking around it.

It's way easier for me to find 14b's around so going to be swapping to that turbine housing. Car will be a street car maybe a daily driver and I know I'm going to enjoy the early spool up. Don't get to play with the top much so won't miss it.

So the question driving me crazy is. What is the high end I should expect? Will it be higher then the 14b?

 

[007jimmy]

You can align the flapper over the wastegate hole. I just applied some heat to the arm and tapped it in with a hammer. Problem solved. If its cracked bad then i wouldnt suggest using it as i dont know what it looks like exactly.

 

[And_44]

Yea, I'm either going to sell this one and pick up a good 16g or replace the turbine housing. Id prefer the early spool up any way since I'll be driving it mainly as a weekend cruiser and back and forth to work occasionally.

Anyone know the estimated top end of a combo like this? My 14b got to 5500 and got weak after that. Maybe hoping the 16g with a 6cm2 housing could take me to at least 7k.

 

[And_44]

So never found an answer for this. Ended up selling the turbo as a whole and picking up a Big 16g that needed a rebuild. Sold small 16g with cracked wastegate and misaligned flapper for $200 and picked up biggie for $80 rebuilt it and put a new compressor wheel in for an additional $95. Got a fresh tight rebuilt mhi big 16g for a grand total or $175.

Did I score or what!!!

Can tell you that with the big 16g as is it hits my full set boost (15psi) at about 3300-3500 rpms and screams up to 7k no problem.

And boy oh boy. When they say a big 16g hits like a sack of potatoes they don't lie. Pulls way harder at 15psi then a 14b at 15psi. Lovin' it. Can't wait for more supporting mods to turn it up. Believe this turbo will take me to my ultimate goal of 350-400 WHP.

 

[Fourdoor]

So never found an answer for this. Ended up selling the turbo as a whole and picking up a Big 16g that needed a rebuild. Sold small 16g with cracked wastegate and misaligned flapper for $200 and picked up biggie for $80 rebuilt it and put a new compressor wheel in for an additional $95. Got a fresh tight rebuilt mhi big 16g for a grand total or $175.

Did I score or what!!!

Can tell you that with the big 16g as is it hits my full set boost (15psi) at about 3300-3500 rpms and screams up to 7k no problem.

And boy oh boy. When they say a big 16g hits like a sack of potatoes they don't lie. Pulls way harder at 15psi then a 14b at 15psi. Lovin' it. Can't wait for more supporting mods to turn it up. Believe this turbo will take me to my ultimate goal of 350-400 WHP.

Sounds like you made out pretty good on that deal! Pump gas you can probably hit 300 to 350, any more than that you will need E-85 or race fuel and you will be out of the efficiency range of the turbo.

Keith

 

[And_44]

Well with gas prices going the way they are e85 is looking very possible. But ultimate goal is between 350-400 and keeping it drivable daily.

Already get comments on its looks now need to get the performance up to the same standards.

 

[Fourdoor]

Well with gas prices going the way they are e85 is looking very possible. But ultimate goal is between 350-400 and keeping it drivable daily.

Already get comments on its looks now need to get the performance up to the same standards.

Keep in mind the 20% to 30% drop in fuel economy (depending on tune, mine was a 21% drop) when switching to E-85. Unless E-85 is $1.00 or more cheaper you will loose money on switching to E-85.... Also, with drought hurting the corn crop I would not expect E-85 to be lower in cost for much longer even if it is at the moment.

If you are wanting 350 or better, then the price of E-85 compared to 105 octane race fuel you will be saving a crap load of money

Keith