To 19T or not to 19T...This is the question.
 

Ok, so it appears my turbo is truly fucked.

I don't have time to rebuild it, nor the tools/will to right now. I'm exhausted from school and these last two weeks are going to be rough.

My options from G-Pop Shop (best of places I've contacted):

High Performance Rebuild: pretty much stock rebuild w/ a steel thrust bearing, shipped back to me for: $430.

HP + 19T compressor wheel upgrade including machining: $605.

They are going to pull the turbo apart, see what was wrong with it, then let me know.

In the mean time, I'm having a hard time deciding to spend the extra coin. The car is a 90 1.6, but will be receiving a built 1.8 sometime within the year which I am shooting for at least upper 200s.

I'm broke, but wanted to see what the crew thought. 2.5" TBE, FMIC, MS, 550cc.


19T wheel should be good for roughly...310-320?

So...nobody has done this?

a 19T? to make upper 200whp? Yeah it can do it alright, considering that wheel can support over 370HP. I'd compare it closely to a 16g, 60 trim t3, or 2560 wheel.

go for it. i'd try it if i needed a rebuild and intended to keep the greddy setup while shooting for "at least upper 200s" i don't know of anyone doing it yet but i'd love to see the results

Watching this thread...T19, more greddy powah!

Are you planning on keeping this turbo for use on the future 1.8?

Yep.

Apparently all I need is the ETD manifold and everything else (downpipe included) should mate up just fine.


I know this came up before and you did the math saying ~315-330rwhp? The guys at the shop said it would be good for around the same amount of flow/power in the efficiency range.

Ben made like 255 on the stock turbo with pretty much the same mods I have.

I figure it would be a hell of a lot cheaper than buying new shit when I go 1.8.

I just don't want it to be a shit bucket on the 1.6 while I have it.

something around there....depends if i decide to use 12:1 or 11:1 as a multiplier when calculating.

lol, so basically we aren't really sure?


Kinda like my injectors, more than enough for what I plan on doing.


But my main concern is how spool will be affected...it shouldn't hurt it that bad? its not like it is spectacular on a 1.6 compared to other turbos.

its more like this....


the 19T can support around 500CFM at 15psi (this doesn't mean 15psi will give you 500cfm). http://www.stealth316.com/images/td04h-19t-cfm.gif

500CFM is around 34.5 lb/min

34.5 lb/min / 12:1 AFR / (.55/60 BSFC) = 313BHP

34.5 lb/min / 11:1 AFR / (.55/60 BSFC) = 340BHP

push it to 550CFM and that's 38 lb/min or 377BHP if you use 11:1



Spool will likely suffer slightly. wheel isn't that much bigger...not like going to a 76mm wheel or something, the wheel is about the same size as mine.

I'm glad you understand that, I understand what you wrote.

Just not a whole lot of why. learning curve ftw. :(

Thanks.

I was thinking about doing the same mod to my greddy set up, So do it and let us all know how it comes out!:bigtu:

Yes you should definately do it if you're planning on running it for the long haul. This is something I wanted to do badly.

GPOP claims that with the p&p job that they do, there is no difference in spool before/after between a totally stock turbo and the worked over 19t hybrid.

That would be pretty sweet.

The way I see it, I couldn't justify just modding it, but it is going to be apart anyway...so what the hell.

Turbo went out a few days ago, hopefully I'll hear back on if anything is FUBAR'd.

If not, I'm going to go ahead and have the wheel done.