Jaared

is a .69 hot side side too small for a tii?

simple question... simple answer..

what is the stock tii ht-18 turbos A/R?

jaared

ilike2eatricers

I think it's 1

Jaared

the search is not working.

Jaared

i keep trying to use the search on here and its not working for me... keep getting a proxy error

White_FC

The a/r ratio is just that, a ratio, you need to tell us what 'size' turbo it is...
a 0.69 a/r is small if your talking about a stock 'size' turbo. But a 0.69 a/r ratio t04 for instance would still most probably flow more than a stock S4 turbine housing.

Series 4 have a 0.88 a/r
Series 5 have a 1.00 a/r

Jaared

im not sure. the info he gave me is:

airesearch to4 The numbers on the ex. side are B50 and 407748. The numbers on the in.side are 409140-2 and DK0105 and TO457

here is a pic

Sponge Bob Square Pants

Simple Answer? YES

Jaared

what symptoms will a to4 turbo thats "too small" have? i mean i dont want to rev to 9k or anything.

Infini IV

That looks like an on-center housing as well... bad for efficiency...

With such a small A/R, you would be choking the motor. Your boost might come in real quick, but when your motor starts to really open up, your housing will choke it... If you're getting the turbo for a really good price, just pick up a better-sized housing.

BTW, the last couple numbers... T0457... I'm guessing it's a T04E 57 trim.. If so, that should be quite a nice turbo for near-stock response and should be capable of about 300-340hp... Not something a hybrid can't achieve.

Jaared

a better sized hot side housing? what size? but i guess for that kinda of hp numbers i could just get a hybrid

Infini IV

If collected, go with either .81 or .96..... If divided, go with either .84 or 1.00