Are these Holset turbos any good for 5.3 application??

[DavidPHumes]

That being said, you can put whatever hotside you want on that tc76 and on a 5.3 it won't make 950rwhp, it's not 950rwhp of coldside on a 5.3, not even close.  Sorry that's just real world facts, not on paper.

Totally agreed.  When I made my comment about large coldsides, we were still talking about 76/78 GTS's and billet 76s.

I've been talking about TC76s the whole time...

Yeah, looking back we did sorta change focus towards smaller 76s and I was still largely thinking of bigger 76/78s from the beginning of the thread, hence the 950 comment association.  My apologies.  Still not optimum in my mind, but not quite as bad as I was thinking, especially given the price as pointed out before.

No worries, I apologize for getting my panties in a bundle too lol

[Darth Viper]

Group Hug time.     I love you guys SO MUCH!!


<----- Just look at my face!

[Ilove7s]

Sorry to bump an old thread but I just got my car off the dyno running a 5.3 and a holset HX52...

Car made 571Hp (no torque numbers yet) on 12 pounds of boost on a very conservative tune.93 octane and meth..Also after this pass a vband broke and had to pull the car off the dyno.Go to find out and it had been leaking since we hit the dyno, so were hoping once I get that sealed back up the car wont be as laggy.

Stock bottom end iron block(except arp rod bollts.
Arp Headstuds
Ls9 Headgaskets
Stock heads ported and  cleaned up
Ls6 cam and intake manifold.

[screamin88]

Nice! That is kind of my initial power goal for my "stage 1" turbo setup...

[Ilove7s]

I will say this though the power comes in very very smooth to me..I will report back with the final numbers and a dyno sheet in the next week or 2.

[screamin88]

I will say this though the power comes in very very smooth to me..I will report back with the final numbers and a dyno sheet in the next week or 2.

Cool.. I'm excited to see what you come up with.. I am still wide open on turbos, I want a nice one but don't want to spend two left nuts...

[Ilove7s]

LoL i hear ya there i payed 150 shipped for the holset.