Bw s475 or pt7675????
9 Second Club
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Joined: Apr 2009
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From: Joliet,IL and Las Vegas 50/50
PT7675 is a potent turbo for it's size. On 10psi I've ran a best of 10.4@134mph with a crap 1.6 60'. Next time out i'm shooting for 9's on 17-20psi. Car made 735whp and 920wtq through an unlocked converter/4l80e so they will make great power and spool damn near instantly on my 346ci motor. I can't run a bigger sized turbo do to space constraints so I'll push the little Precision as far as it will take me.
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Joined: Mar 2011
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From: Statesville, NC
TECH Fanatic
Joined: Mar 2011
Posts: 1,916
Likes: 8
From: Statesville, NC
What do people actually mean and what basis of comparison do they have when they say a turbo spools "pretty quick"?
The PT76GTS (Same as PT7576) spooled like a diesel on my 6.0L, it was instant. Now the same turbo on a 5.3 people have told me my car spools pretty fast and i look at them like they are nuts... its slow as hell compared to when it was on the 6.0L.
People have told me their 15 second honduh is "pretty quick".
The PT76GTS (Same as PT7576) spooled like a diesel on my 6.0L, it was instant. Now the same turbo on a 5.3 people have told me my car spools pretty fast and i look at them like they are nuts... its slow as hell compared to when it was on the 6.0L.
People have told me their 15 second honduh is "pretty quick".
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9 Second Truck Club
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Joined: Sep 2006
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From: Colorado Springs, Co/ Central, Ca
I ran a S475/83 on my nova for a short bit and it went 8.90/157.7mph @3300 lbs having to peddle car a few times due to jet fuel sprayed all over the track. I think I could go ~8.6 @158~159 mph if I tried again.
Absolutely no complaints about my Precision 7675GTS-H. Its a cast wheel, ported housing and makes awesome power. You can get it to spool as quick as you want with the tune. Clearly people are happy with both, if you are size limited, the Precision is the way to go.
I just off the phone with forced Inductions and he said they have their own version of a pt7675 out that has a larger billet wheel t4 divided flange. Also said its out down 1000rwp already. It's not listed on their site but you might think about that as well. It will light quick and won't choke up top.
Heck I was talking with Liljohn and he said that they had a 92mm turbine powering a Billet 80+mm compressor and doing very well with it. Lightning fast spool and making some steam up top too. Supposedly that 92mm turbine wheel (same one I have in my cast s480) is a great design. This is the only turbo I have run on my 5.3 so I have nothing to compare it to.
On The Tree
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TECH Fanatic
Joined: Mar 2011
Posts: 1,916
Likes: 8
From: Statesville, NC
