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441ci LSX Twin Turbo new #'s Precision 67 CEA vs Turbonetics TC70

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Old 01-07-2012, 06:08 PM
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Default 441ci LSX Twin Turbo new #'s Precision 67 CEA vs Turbonetics TC70

Heres my new graph showing Precision 6766 CEA billet, ball bearing with .68 a/r's vs Turbonetics TC7068 cast, journal bearing with .81's a/r's. We did not change anything but turbos and the air/fuel and did not touch the timing. Its still low like it was when we tuned it in 110 degrees out side. The Precision graph is on 21lbs and the turbonetics is on 17.5lbs. when we compared 10lbs vs 10lbs it was 695rwhp vs 790rwhp. Each time we turned it up it would love it. 17.5 vs 17.5 is 916rwhp vs 1030rwhp. i picked up 250rwhp and 250-300rwtq under the curve and from the get go i picked up 150-200rwhp and 150-200rwtq off throttle. BTW spinning on the dyno on 1172rwhp

Last edited by jeremym; 01-08-2012 at 02:24 PM.
Old 01-07-2012, 06:15 PM
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Graph?
Old 01-07-2012, 07:08 PM
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Im guessing you made more hp with the precisions? your not to clear on this.
Old 01-08-2012, 09:31 AM
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Here's some vids of the dyno pulls

302 Found

302 Found
Old 01-08-2012, 10:10 AM
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Old 01-08-2012, 03:46 PM
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Congrats man very nice numbers..
Why did you guy let off early it looks like power is still raising?? maybe 1200rwhp !!

Let's see some fun vids of it?
Are you going to TX2k12?? Or maybe D vs H?
Old 01-08-2012, 04:01 PM
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Your car is perfect, congrats on the new numbers.
Old 01-08-2012, 04:57 PM
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Originally Posted by dan03mach
the blue line is the precisions and the red is turbonetics
Old 01-08-2012, 04:57 PM
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Why does the one graph stop at like 5800??
Old 01-08-2012, 05:51 PM
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So sick. You have some stones only using 2 straps on the back. I'd be tying it down with anything I could find, then shoving Rosie O'Donnell in the trunk. Sick car dude.
Old 01-08-2012, 05:57 PM
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What does it make SAE corrected?
Old 01-08-2012, 06:07 PM
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Originally Posted by Frans96SS
What does it make SAE corrected?
1171rwhp. sae, uncorrected and std were all within 1-2rwhp
Old 01-08-2012, 07:31 PM
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Very nice congrats!!
Old 01-08-2012, 08:24 PM
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Originally Posted by 03supercobra
Your car is perfect, congrats on the new numbers.
THIS +1.

Look at the power at 3.5k! What a huge jump in power right off throttle!
How fast does your setup spool on the street? (Still amazed you have street car in your sig badazz) I mean do you even feel the spool at 1000RWHP?!? LOL

Can someone break down what's the real difference between the turbos used? I know the A/R is smaller on the new setup, which helps spool right? I'm still learning about turbos and whatnot, trying to go TT with my WS6 without any lag, just instant boost right off throttle!
Old 01-08-2012, 08:54 PM
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Originally Posted by WS6sleeper
THIS +1.

Look at the power at 3.5k! What a huge jump in power right off throttle!
How fast does your setup spool on the street? (Still amazed you have street car in your sig badazz) I mean do you even feel the spool at 1000RWHP?!? LOL

Can someone break down what's the real difference between the turbos used? I know the A/R is smaller on the new setup, which helps spool right? I'm still learning about turbos and whatnot, trying to go TT with my WS6 without any lag, just instant boost right off throttle!
Billet wheel = lighter/stronger, ball bearing = not even a comparison to journal, they spin effortlessly, smaller A/R = less exhaust gas required to spin = less lag.
Old 01-09-2012, 06:32 AM
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Originally Posted by 'Trust'
Billet wheel = lighter/stronger, ball bearing = not even a comparison to journal, they spin effortlessly, smaller A/R = less exhaust gas required to spin = less lag.
you are right. the car is a whole diff car with the new turbos
Old 01-09-2012, 08:31 AM
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Originally Posted by jeremym
you are right. the car is a whole diff car with the new turbos
I told you to do this over a year ago. Thanks for finally listening. You're welcome.



Old 01-09-2012, 08:33 AM
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Jeremy if you spin that thing to 7k rpms it would probably make around 1250rwhp on the same boost level. The hp was not dropping off at all. It was steadily pulling higher and higher.
Old 01-09-2012, 09:28 AM
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Nice! looks like the switch was a great upgrade! BTW the car is very nice.
Old 01-09-2012, 10:52 AM
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I'm glad to see that the .68 turbine A/R doesn't limit even your 440 CI. Makes me feel more comfortable that my twin GTK-650s will be happy on my 408. I'm slowly working out the tubing now.


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