LS2 Dyno guesses?
Tech Contributor
Joined: Jul 2002
Posts: 14,950
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From: St. Louis, MO
St. Jude Donor '08
You gonna come get me Joe? 
I really don't even care, well see what it does and let Vengeance make a solid safe tune. I'm more interested in how the Halltech feels around town with a fresh tune
If I don't like it I may go larger car (5.0/GT500) or redo the H/C (G6X3/TFS) ....or buy a scooter and forget keeping up with the Jones'.
I really don't even care, well see what it does and let Vengeance make a solid safe tune. I'm more interested in how the Halltech feels around town with a fresh tune
If I don't like it I may go larger car (5.0/GT500) or redo the H/C (G6X3/TFS) ....or buy a scooter and forget keeping up with the Jones'.
Your car is going to feel fast. Really fast. Traction will be a problem over 4500.
If you want in on the 500 rwhp club a g6x3 meat stick and a set of TF 225's are the way to get there.
Tech Contributor
Joined: Jul 2002
Posts: 14,950
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From: St. Louis, MO
St. Jude Donor '08
I'll be the wet blanket here. Here is what I'm thinking.
You didn't mention compression so I'll assume stock 10.9. I'll also assume you are running on a Dynojet 248 SAE Smoothing 5, and that you have stock gears. Based on my setup and similar setups I've seen I'll say:
480/430
Which is nothing to be ashamed of. Your 112 cam will help low end TQ at the expense of some top end.
It's enough to be a 10 second car on a cold day.
To get over 500 on an LS2 you need every last mod, including Trickflow heads (or shaved heads, 12.5 compression and METH), light flywheel, electric water pump, A/R or LG expensive headers. A few dyno tricks such as super light wheels, etc. don't hurt.
You didn't mention compression so I'll assume stock 10.9. I'll also assume you are running on a Dynojet 248 SAE Smoothing 5, and that you have stock gears. Based on my setup and similar setups I've seen I'll say:
480/430
Which is nothing to be ashamed of. Your 112 cam will help low end TQ at the expense of some top end.
It's enough to be a 10 second car on a cold day.
To get over 500 on an LS2 you need every last mod, including Trickflow heads (or shaved heads, 12.5 compression and METH), light flywheel, electric water pump, A/R or LG expensive headers. A few dyno tricks such as super light wheels, etc. don't hurt.
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Melting Slicks
Joined: Jul 2007
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Tech Contributor
Joined: Jul 2002
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From: St. Louis, MO
St. Jude Donor '08
Realize you won't feel that difference; it might show up on a time slip but you don't race that much I don't think.
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Melting Slicks
Joined: Jul 2007
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I wouldn't put in a g6 with stock ported heads. It's a huge cam that needs huge heads to go with it. The killer combo is Trick Flow 225's and the G6. It's really a big cam for max effort builds, not for a DD I'd say. If you want 8-10 rwhp for your dyno satisfaction, get an electric water pump.
Realize you won't feel that difference; it might show up on a time slip but you don't race that much I don't think.
Realize you won't feel that difference; it might show up on a time slip but you don't race that much I don't think.
I look forward to your replies, always accurate. I'm leaning towards TF 225's and the G6X3 with a possible vacuum pump. That would (should) get me where I want, at more cost obviously. Ading the G6 now would not be optimal but a natural process (add TFS when affordable) and it would also be nice to have as a dyno result with (now EPS/AI) a G6 and AI's. We'll see.
I appreciate your advice
Tech Contributor
Joined: Jul 2002
Posts: 14,950
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From: St. Louis, MO
St. Jude Donor '08
I look forward to your replies, always accurate. I'm leaning towards TF 225's and the G6X3 with a possible vacuum pump. That would (should) get me where I want, at more cost obviously. Ading the G6 now would not be optimal but a natural process (add TFS when affordable) and it would also be nice to have as a dyno result with (now EPS/AI) a G6 and AI's. We'll see.
I appreciate your advice
I appreciate your advice
Frankly, if your goal is 500 rwhp, I would try to get there with your cam. Your cam is pretty big. I'd go EWP, then merh, then TF225's, in that order.
Call LG - get their advice, they have always been good with tech advice for me.
If indeed that is really your goal. Keep in mind that you aren't going to feel a difference between 485 and 500...and the difference will only be 5500-6800 rpm so you are seldom going to experience it. So it's a lot of money for IMHO very little gain.
Instructor
Joined: Sep 2010
Posts: 244
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From: Cleveland Mississippi
I have the same exact cam as you man. I put down 506rwhp you just need TFS225cc heads like me. That was in terrible weather too in cool weather with a ported fast I guarantee I will put down 520+rwhp.
Drifting
Joined: Oct 2004
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From: STL MO
St. Jude Donor '09-'10
Even a nice set of As Cast 220's from Brian Tooley would put Jason over 500 as I believe he has the supporting pieces already in place...
Thread Starter
Melting Slicks
Joined: Jul 2007
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No sir
Thank you
Yea, yea. My budget is tight 
Thank you
Instructor
Joined: Sep 2010
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From: Cleveland Mississippi
I think so too. Ported FAST along with a vacuum pump I want around 530rwhp.
Drifting
Joined: Jan 2010
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From: Katy TX