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twin turbo ls1 question

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Old 02-27-2012, 07:25 PM
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Default twin turbo ls1 question

hey guys just a qiuck question.

currently i am in the middle of building a rear mount setup.

its a nissan 240 with an LS1 and a t56, was going to use a gt45 i got for cheap.

but now im thinking of doing a twin setup
what size turbos would i need to do the twin ?
only want to run about 10lbs

thanks for the input

ps i was thinking like 2 gt2560 ? or maybe like 2 20G turbos
Old 02-28-2012, 06:15 AM
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You havent got a ls1 supercharger for sale have ya?
Old 02-28-2012, 07:42 AM
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Im doing a rear mount setup on my ctsv right now amd i went with the new PT billit 5858/.82ex
But this is going on a built motor
Old 02-28-2012, 10:14 AM
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Is that ctsv a v6? (kidding) but seriously unless your talking twins I have done a ton of sizing research for my rearmount setup and id be affraid that a 58mm would choke that engine. I already had an uneasy feeling about the 67mm that was recommended for my setup. The only saving grace is its a bb and billet setup. But i am still consideering stepping up to the 76. Good luck i just hope you dont end up dissapointed like so many base sts kit buyers.
Old 02-28-2012, 10:48 AM
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no its a twin setup. Should make 1krwhp pretty easy.
1 67mm better be a t4 with a 1.15 ex or your motor will hate u
Old 02-29-2012, 09:09 AM
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Originally Posted by NAVY-ET
hey guys just a qiuck question.

currently i am in the middle of building a rear mount setup.

its a nissan 240 with an LS1 and a t56, was going to use a gt45 i got for cheap.

but now im thinking of doing a twin setup
what size turbos would i need to do the twin ?
only want to run about 10lbs

thanks for the input

ps i was thinking like 2 gt2560 ? or maybe like 2 20G turbos

Give Jim at CalSpeed and Performance (www.calspeedperformance.com ) a call. He can help you pick out what you need. He's putting in a single T76 BB turbo (rearmounted) into my 2002 Camaro (stock bottom).

Here's a video of one of his customer's C5 Vette. Twin T76 BB RearMounted. The vette and my camaro are using On3 turbos. He's got 2, I am getting one.

Video of his other customer's car:

http://vegaslsx.com/vbulletin/vbtube...yno-Run-850-hp

Hope this helps.
Old 02-29-2012, 09:37 AM
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Twin billet journal bearing Precision 6266s with .81 AR T4 exhaust housings. Get the ported S compressor cover.



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