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408ci Twin 67mm preliminary dyno results...

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Old 11-13-2006, 02:14 PM
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Default 408ci Twin 67mm preliminary dyno results...
We made some pulls with the 408ci twin 67mm turbo build we just completed.

Engine is our extreme 408 with AFR 225 heads, LS6 intake manifold, accufab 78mm throttle body, BS3 engine management, 96lb/hr injectors, twin bosch fuel pumps.

It made 988rwhp @15psi boost, 17 deg total timing. The dyno was having trouble reading engine RPM so no torque, but the BS3 datalog showed 7,500rpm on this pull. Cam is a 230/230 @.050 113lsa hydraulic roller on Comp lobes.

It is a 6-speed car running through a dual 3in exhaust exiting at the bumper.

We managed to keep the stock radiator and fans so it is running a consistent 180deg coolant temp. We'll probably turn it up a few more PSI when we get some better tires on the car.

Details of the build and dyno sheet-


https://ls1tech.com/forums/forced-induction/579103-speed-inc-streetable-race-twin-turbo-system.html


http://www.ls1speed.com/pictures/shane.jpg

www.ls1speed.com/pictures/DSC00949.jpg
www.ls1speed.com/pictures/DSC00950.jpg
www.ls1speed.com/pictures/DSC00952.jpg
www.ls1speed.com/pictures/DSC009562.jpg
www.ls1speed.com/pictures/DSC009582.jpg
www.ls1speed.com/pictures/DSC009592.jpg
www.ls1speed.com/pictures/DSC009612.jpg
Last edited by qqwqeqwrqwqtq; 11-13-2006 at 02:26 PM.
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Old 11-13-2006, 02:16 PM
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Can't you go to 15.5 psi just to hit the 1k? You're such a tease...
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Old 11-13-2006, 02:22 PM
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Badass!
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Old 11-13-2006, 02:26 PM
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its makes 900 forever
Last edited by smokinHawk; 11-13-2006 at 02:48 PM.
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Old 11-13-2006, 02:28 PM
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Sick!
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Old 11-13-2006, 02:41 PM
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Wow!!
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Old 11-13-2006, 02:42 PM
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Man that is one bad *** machine. Good numbers for sure.
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Old 11-13-2006, 02:49 PM
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Damn nice numbers. Seen the car in person 2 weeks ago. NICE!!!
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Old 11-13-2006, 02:55 PM
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That's a good working combo!
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Old 11-13-2006, 02:59 PM
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awesome results, looks great
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Old 11-13-2006, 03:44 PM
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Is that the TA that I saw over there guys?
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Old 11-13-2006, 05:15 PM
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Bad ***....
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Old 11-13-2006, 05:41 PM
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interesting results. Ya'll seem to have a secret agreement with the turbo gods....

does turbos, the 67mm. what a/r you running. Im assuming t4 flanges right? Pump/mix/race gas?
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Old 11-13-2006, 05:41 PM
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Very nice numbers...

I bet you could make similar power at 13 #'s with a 90/90 on there.
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Old 11-13-2006, 05:46 PM
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damn you guys continue to impress the **** out of me. what's great is that its such a simple combo that works.
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Old 11-13-2006, 05:46 PM
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Nice stuff
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Old 11-13-2006, 06:08 PM
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WOW, class act. Question, how are the down pipes run and what diameter are they?
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Old 11-13-2006, 06:24 PM
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Holy crap.

Welp, you've got my attention.

Whens this kit ready for production/sale? EDIT: just read the other thread...

I can't believe you fit all that, PLUS a 9" in the back of that car. Amazing job..


What's the ride height of that car look like? Was there much room between the fabbed gas tank and the 9"?
Last edited by BAD ASS TA WS6; 11-13-2006 at 06:37 PM.
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Old 11-13-2006, 06:54 PM
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wow, i love reading about speed inc cars. i just know they are all going to be bad ***. makes me want to move my hair dryer up front and get a bigger one......
+1
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Old 11-13-2006, 08:13 PM
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988? pffft thats it?

bwahaha awesome, but come on you could have just gotten the 12 more at least
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