Pt7675cea claims 1200hp ?! - LS1TECH - Camaro and Firebird Forum Discussion



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Pt7675cea claims 1200hp ?!

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Old 05-19-2017, 12:32 AM   #1
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Default Pt7675cea claims 1200hp ?!

can anybody back precisions claims up? I have a forged/billet 365 ls2 with billet doweled mains, o ringed with mast 245cc heads. Can this turbo really lay down these numbers ? I'm looking to make 1000 rwhp and have great spool times in my gto. I don't want to go twins , and this caught my eye . Every dyno result I see on this turbo is about 2-500 hp short of advertised whether it be wheel or crank! If anybody can recommend a turbo to make 1000 rwhp in my car and have room to grow . My motor should be very efficient with a btr combo specific turbo grind, and the mast heads .
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Old 05-19-2017, 06:21 AM   #2
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It might do 1200hp on a 2JZ, not likely going to happen on a 365" motor.
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Old 05-19-2017, 06:42 AM   #3
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You need a S400 with a 80-85 compressor and the 96 turbine.
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Old 05-19-2017, 07:46 AM   #4
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Like mentioned already... on a 4 banger at high boost (40+psi) it would probably make 1200hp. On your motor... 800rwhp is doable.
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Old 05-19-2017, 08:25 AM   #5
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Another member has this turbo for sale . How do you guys think this turbo would work for my goals ?
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Old 05-19-2017, 08:28 AM   #6
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Turbo is a beast... Should be pretty awesome and still spool pretty good.
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Old 05-19-2017, 09:25 AM   #7
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Yeah I picked up a Turbonetics T7875 which also advertised a 1,200 hp rating only to find out on the mid-300 inch LS platform it will probably top out at 700-800rwhp.
From everything I've gathered and researched its the 75mm exhaust turbine that is the limiting factor.
Unfortunately if you want a larger turbine I'm pretty sure your getting into the borg style units and fitment becomes an issue.
I'm sure there are guys who have more accurate input than myself as well and hopefully they'll chime in with ideas.
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Old 05-19-2017, 09:50 AM   #8
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Yeah I picked up a Turbonetics T7875 which also advertised a 1,200 hp rating only to find out on the mid-300 inch LS platform it will probably top out at 700-800rwhp.
From everything I've gathered and researched its the 75mm exhaust turbine that is the limiting factor.
Unfortunately if you want a larger turbine I'm pretty sure your getting into the borg style units and fitment becomes an issue.
I'm sure there are guys who have more accurate input than myself as well and hopefully they'll chime in with ideas.
That precision is good for around 900rw on a 365 inch motor. My junk made 820 with a soft tuneup. Now 1200....iiiii dunno bout that.
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Old 05-19-2017, 11:05 AM   #9
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That precision is good for around 900rw on a 365 inch motor. My junk made 820 with a soft tuneup. Now 1200....iiiii dunno bout that.
See and I was wondering if there's a billet wheel available for the T7875 that would extend that rating out to 900whp or more.
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Old 05-19-2017, 11:08 AM   #10
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See and I was wondering if there's a billet wheel available for the T7875 that would extend that rating out to 900whp or more.
It may. But I can tell you this, it's going to take an aggressive tuneup to do it. Oh and that 820...soft tuneup.... was with a billet 7675.
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Old 05-19-2017, 11:35 AM   #11
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It may. But I can tell you this, it's going to take an aggressive tuneup to do it. Oh and that 820...soft tuneup.... was with a billet 7675.
Not just the tune, but also a turbo screen and uncapped downpipe (open downpipe or a properly placed cutout).
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Old 05-19-2017, 12:13 PM   #12
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The turbo you posted thats for sale would get you to 1000rwhp. Thats a nice turbo combination in my opinion. I am about to run almost the exact same thing but mine is only a 76mm comp wheel, but has the same 87mm turbine wheel and mine is on a 1.10 A/R T4. My goals are the same, 1000rwhp but on a forged 5.3 I built with home ported 243 heads.

I would snag that turbo if I were you. Thats about the best option as far as the turbine housing and wheel goes for a balance between your 1000rwhp and spool time. It should light off real quick with your 365
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Old 05-19-2017, 12:21 PM   #13
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See and I was wondering if there's a billet wheel available for the T7875 that would extend that rating out to 900whp or more.
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It's a 75mm wheel instead of the 78, but yea.
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Old 05-19-2017, 12:50 PM   #14
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Not just the tune, but also a turbo screen and uncapped downpipe (open downpipe or a properly placed cutout).
I was thinking a cutout was automatic on a boosted setup.
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Old 05-19-2017, 04:28 PM   #15
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I would call Jose @ forced inductions he will get you exactly what you need. I would stay away from the bullseye turbo. Ls1nova already said exactly what you need and I wouldn't consider anything less.
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Old 05-19-2017, 10:39 PM   #16
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The turbo you posted thats for sale would get you to 1000rwhp. Thats a nice turbo combination in my opinion. I am about to run almost the exact same thing but mine is only a 76mm comp wheel, but has the same 87mm turbine wheel and mine is on a 1.10 A/R T4. My goals are the same, 1000rwhp but on a forged 5.3 I built with home ported 243 heads.

I would snag that turbo if I were you. Thats about the best option as far as the turbine housing and wheel goes for a balance between your 1000rwhp and spool time. It should light off real quick with your 365
i think I'm gonna . Not a great deal by no means pricewise , but I thought it would be just about perfect for what I want it to do in my gto. About to see what this heavy pig can do n/a in the morning 😂😂 if I run 12.5 I'll be happy lol
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Old 05-20-2017, 09:58 AM   #17
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Originally Posted by Dennis5374 View Post
i think I'm gonna . Not a great deal by no means pricewise , but I thought it would be just about perfect for what I want it to do in my gto. About to see what this heavy pig can do n/a in the morning 😂😂 if I run 12.5 I'll be happy lol
If it's not a great deal why are you picking it up? lol

You've been given good advice that you seem to be just ignoring. Best of luck regardless.
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Old 05-26-2017, 12:54 AM   #18
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zero chance a 7675 makes 1k tire with that many cubic inches
i bet it struggles to make 800
an s400 based turbo with a bigger turbine would be a much better choice
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Old 05-26-2017, 05:29 AM   #19
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zero chance a 7675 makes 1k tire with that many cubic inches
i bet it struggles to make 800
an s400 based turbo with a bigger turbine would be a much better choice
1k might be a stretch, 800.....a breeze. This car has an ls1 under the hood, along with the 7675 and this what it does at 16psi. I'd bet anything that he's well beyond 800. Car is full weight as well. Hard to see the clocks, but it runs 9 teens at nearly 150.
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Old 05-26-2017, 07:18 AM   #20
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I also have my eye on the 7675 for my LQ4, or the Turbonectics 7875. Is there any other compact turbos that would perform like the 7675? The s400's which I like just seem to be unnecessarily physically large. The turbo the OP is looking at does seem like the a nice turbo for the application.
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