Heavy H.P.

I know people know and run the PT88 which according to their website is rated to 1250hp. But has any one ran the PT8847? Rated to 1400hp.

http://www.precisionturbo.net/Street...r---PT8847/287

WillRyan

I went with the PT8847 for the LQ4!

No where near running yet, but I found a lot of good information from google about that turbo with similar builds!

Ryans99ls1

iTrader: (16)

The PT8847 is one bad ****. Its pretty damn big but it will make big power too

Heavy H.P.

I wonder if anyone is running into back pressure issues with it?

LS1NOVA

iTrader: (12)

Search user name SlowredZ.

mike13

iTrader: (27)

yes, it's a small housing and turbine wheel for 1000+ hp. Only way I can see a pt8847 making 1250-1400 with a T4 housing is on a small cubic inch motor with a lot of back pressure. Also the PT 47/88 compressor cover isn't nearly as efficient as the larger GT47/88 cover.

Not knocking the pt47/88 just not the best option past 800hp.

Slow94Formula

iTrader: (18)

I believe you mean user name "Jakson" for LS1tech.

Heavy H.P.

Then why make it if it can't get the job done?

LS1NOVA

iTrader: (12)

811whp at 15psi is damn good imo. Never got turned up as it broke the T56.

Heavy H.P.

Damn, what are the details on the motor?

Slow94Formula

iTrader: (18)

https://ls1tech.com/forums/forced-in...-pg-5-7-a.html

mike13

iTrader: (27)

it gets the job done, just not 1000 efficiently. People wanting to make a 1000 are using the GT50 & GT55.

rotary1307cc

iTrader: (5)

It is a gt4788 in smaller housings

mike13

iTrader: (27)

Which aren't as efficient. If you want to make 1000+ type power with a T4 you should look at the Borg Warner turbos Jose at Forced induction has developed. The issue is going to be turbine wheel size. Or if you want to stay with a pt88 based turbo look at the GT91 built by Forced Induction.