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Twin turbo LSx Vega build

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Old 10-04-2012, 04:57 PM
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Default Twin turbo LSx Vega build

I have owned this car for almost 24 years. It's been trough many builds from a nitrous small block, nitrous big block, alcohol injected big block, blown big block, to now a twin turbo LS. I am trying to make it a street car I can cruise around on weekends and still run good at the track.

Here are a couple pics from when it had the blown big block in it:





I had a minor accident in the spring of '06:

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We fixed it, then hurt the motor. The chassis expired and would only pass a sportsman cert, so I parted the motor and parked the car.
Old 10-04-2012, 05:01 PM
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Starting the mock up of the motor:

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It looks like is a ton of room to mount turbos, radiator, etc, but it filled up fast.
Old 10-04-2012, 05:03 PM
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Cool. I used to have a Monza with a mild small block that could scoot pretty good.
LS1 tt ? insane
Old 10-04-2012, 05:14 PM
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Starting on the headers:

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I bought the Edelbrock Pro Flow intake because I thought it looked cool.

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Another shot of the headers:

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Old 10-04-2012, 05:24 PM
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Ohhh my lord!!!!!!! wow you have some tallent sir...! very impressive header work, as well and the rest of the car. I wish you luck
Old 10-04-2012, 05:32 PM
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Originally Posted by bottlefedb20
Ohhh my lord!!!!!!! wow you have some tallent sir...! very impressive header work, as well and the rest of the car. I wish you luck
Thank you. I was just checking out your build, very nice.
Old 10-04-2012, 10:43 PM
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what coating is on the headers???
Old 10-05-2012, 01:58 AM
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Originally Posted by VegaJim
Thank you. I was just checking out your build, very nice.
Thank you....Its my first ground up, but im pretty proud of myself so far. Im just poor and thats my biggest set back..lol, anyways, Iwas looking for someone to build me some 180* headers a while back....Damn I wish i could of found you earlier..Nice work again! name is Jim also
Old 10-05-2012, 06:05 AM
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Nice, I'm also working on my x275 Vega LSX single turbo..
Keep up the good works ,is lookin great.
Old 10-05-2012, 09:47 AM
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Originally Posted by ttranssam
what coating is on the headers???
They are polished stainless. I know they will turn colors, but they look good for now.
Old 10-05-2012, 09:53 AM
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Nice build! i like the motor plate and headers.
Old 10-05-2012, 10:27 AM
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Removed all the old wiring and installed a street rod wiring harness. It made everything so much easier and nicer, I even have turn signals and flashers.

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I am going to run a stock PCM and tune it with HP Tuners. If i can't get it to do what I want i will switch to and aftermarket EFI system. I mounted the PCM between the seats and the relay center in front of the passenger seat, it keeps the engine bay cleaner.



Mounted the turbos and started on the downpipes and charge pipes. Like a dumb ***, I located the turbos without mounting the radiator. I got everything done and the turbos hit the radiator. I moved the turbos to clear the radiator and they the supports for the front wrap. I finally got it on the third try.

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Old 10-05-2012, 10:54 AM
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WOW!!!! How did you polish the headers to make them look so good? Or did you send them out? You can't even see the welds on them. Did you grind them flush before you polished them?

Very nice build man. Keep up the good work.
Old 10-05-2012, 11:30 AM
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Originally Posted by Danny
WOW!!!! How did you polish the headers to make them look so good? Or did you send them out? You can't even see the welds on them. Did you grind them flush before you polished them?

Very nice build man. Keep up the good work.
I polished them. I welded the primary tubes, then polished them, then finished welding the headers together.

Thanks.
Old 10-05-2012, 12:01 PM
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I LIKE!!!

how much did it weigh with the bbc?
Old 10-05-2012, 06:59 PM
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Originally Posted by 71 chevy
I LIKE!!!

how much did it weigh with the bbc?
Thanks, it weighed 2965 after a run. I hope it weighs a little less with LS motor.
Old 10-06-2012, 02:36 AM
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I'm excited to see this thing come to life
Old 10-06-2012, 09:25 AM
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Originally Posted by VegaJim
Thanks, it weighed 2965 after a run. I hope it weighs a little less with LS motor.
it should. maybe 150 less
Old 10-06-2012, 11:23 AM
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Thanks for the compliments.

I ported my own heads, they are factory 243's. By the time I paid for machine work, valves, guides, springs, lock, retainers, and seals, I should have bought an aftermarket set.

A couple pics:

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While the heads were apart, I decided to put a little shine on them:

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Old 10-06-2012, 11:36 AM
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looks good.


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