quick questions about the 16t

[martin_r_smith]

Hi all, what is a 16t like at holding 24psi from say 3000-5000rpm? And when on your petrol cars does it start spooling?

Cheers

[t5 pete]

Tbh no tdo4 wants to be run at that constant and I doubt many would keep that pressure up 16t are very good at quickly spooling and will hold 18psi

[JamesT5]

Hi all, what is a 16t like at holding 24psi from say 3000-5000rpm? And when on your petrol cars does it start spooling?

Cheers

Speak to MRP, he'll correct me if I'm wrong but he's had his to 22psi.

[martin_r_smith]

Bugger, I was hoping they wouldn't mind at least 20psi. But do you think as mine is a derv, so it would all be running cooler anyway, that it wouldn't mind so much?

[martin_r_smith]

The only reason I'm asking is owens reckon a td04 is my easiest option as it's a T3 flange and more or less the same exhaust flange. Although they did suggest I get one of their special 19t's but that's out of budget.

[M-R-P]

Mine holds at just over 20psi right through 4th gear but I wouldn't do it for more than a quick squirt - it's got 212k on it after all.

Spoolup is pretty quick with the right mapping...


https://www.youtube.com/watch?v=VTWJ9BwNSDU

The delay after the gear change is just me faffing about :)

[martin_r_smith]

Hmmm, this is encouraging and I think that as my Peak power is 4650rpm I may be ok with a 16t. After all 20psi at 2500-4500rpm is a bit less strain on a turbo than at the rpm's you guys are doing in your petrols I'm sure.

[M-R-P]

I think the D5 run at 1.6 bar standard :D

[martin_r_smith]

Think your right, but it's not a question of if I can run at that boost level as I have been using 1.7-1.8bar for sometime but I need a more efficient turbo than the kkk k14. Unfortunately this unit, although capable of high pressure at low revs, it can't hold pressure as it causes Extremely high emp. This on a diesel means high egt's and thus lots of black smoke as the afr drops below 16:1! Now ideally I need a freer flowing turbo than the standard unit purely to be able to keep up an afr of 18-20:1 (relatively smoke free), by keeping the emp at no more than 1 bar above map.

[M-R-P]

I like your logic mate.

The 16t is a tough little blower too.

[martin_r_smith]

Thought my logic only made sense to me lol, awesome!

Well I think I will try a 16t first (as it's a fairly cheap option), then go from there, it's got two choices after all.

[Jamest5r]

The 16T is a.great little turbo in my view, spools up really quickly and holds long enough for normal circumstances, I run one on my daily auto :)

[smithy]

Thought my logic only made sense to me lol, awesome!

Well I think I will try a 16t first (as it's a fairly cheap option), then go from there, it's got two choices after all.

All I have to say is holset for your application mate .most diesels don't have water cooling on the turbo just oil.

[JamesT5]

I think the D5 run at 1.6 bar standard :D

That reminds me, I was surprised to note that the first generation D5 only has 10nm torque more than the T5. I expected the D5 to have far more torque than that given that it's a diesel. Just goes to show how 'torquey' the T5's are!

[martin_r_smith]

All I have to say is holset for your application mate .most diesels don't have water cooling on the turbo just oil.

Very true, and a holset (hx25 or 30) is still an option. But it's no problem fitting a water cooled though, only a bit of plumbing after all!

[martin_r_smith]

The 16T is a.great little turbo in my view, spools up really quickly and holds long enough for normal circumstances, I run one on my daily auto :)

Is that the old man burgundy that your gonna sell me one day ;)