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Who has the biggest Twin Turbos?

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Old 09-23-2005, 12:22 AM
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Default Who has the biggest Twin Turbos?

What are the biggest known Twin Turbos on a car today, street driven or track only, just want to know
Old 09-23-2005, 02:43 AM
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Somebody in Detroit........................
Old 09-23-2005, 05:12 AM
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Ya w2w

http://www.w2wpowertrain.com/t-Casper-2.aspx
Old 09-23-2005, 05:20 AM
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It funny when ya see that car in a pic with noone aroudn it it looks liek regular size. In the other pic on that page it looks like a toy car. What size are the twins on casper? I didnt knwo they had only 352ci. That is amazing. GL


John
Old 09-23-2005, 07:27 AM
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For a street ls1, 99t66ls1 's twin precision t67 p trims have got to be up there.
Old 09-23-2005, 08:13 AM
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i think casper as well! man i love that vid they made, rocks
Old 09-23-2005, 09:25 AM
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Yea what size are those turbos?? I wonder how much money went into that car, I thought the record was still in the 7's lol

Very nice setup though. I am waiting on my quote from them on back halfing my car, ite been like 5 days
Old 09-23-2005, 09:35 AM
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We have a customer with a street driven C5 running Twin T70's on a 427 LSX.

Jose
Old 09-23-2005, 09:39 AM
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I think harlan was running 67's but now I'm sure he has got something bigger.
Old 09-23-2005, 09:46 AM
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i think casper has some 80mm's on him'

finally got my casper shirt yester day too
Old 09-23-2005, 10:44 AM
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Originally Posted by JZ 97 SS 1500
We have a customer with a street driven C5 running Twin T70's on a 427 LSX.

Jose
Wow a T70 TT 427, I thought there was no need for big cube when you have turbos?? Oh well, thats awesome, any track times or numbers?
Old 09-23-2005, 10:48 AM
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Casper has 88's on it!!!





















I have seen bigger..........lol...
Old 09-23-2005, 10:54 AM
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This girl I know has some big twins.
Old 09-23-2005, 12:24 PM
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Increasing displacement allows your turbo envelope to increase as far as what you can fit and the related spool that comes with it.

You start to get into surge and other problems with turbos that are too large for the given displacement. If the car is like casper, where it almost never sees below 3500 under load, and never sees the street, you can push that turbo envelope much further.
Old 09-23-2005, 12:30 PM
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didnt Mike Moran have twin 91mm's on a big block?
Old 09-23-2005, 12:31 PM
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If your going for all out, then Brad brand had 2 T106's on his 700+ci motor. He has since backed it down to 2 91's I believe.

Jose
Old 09-23-2005, 01:36 PM
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Originally Posted by JZ 97 SS 1500
If your going for all out, then Brad brand had 2 T106's on his 700+ci motor. He has since backed it down to 2 91's I believe.

Jose
Backed it down... what a pansy
Old 09-23-2005, 02:08 PM
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the reason they backed it down was not because they were scared ,but because they were putting so much air through the motor that the air reached suppersonic speed and would shut the engine down,the only thing to do was to put smaller turbos or more restricktive heads.
Old 09-23-2005, 02:23 PM
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the reason they backed it down was not because they were scared ,but because they were putting so much air through the motor that the air reached suppersonic speed and would shut the engine down,the only thing to do was to put smaller turbos or more restricktive heads.

if thats true then
Old 09-23-2005, 02:26 PM
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I know Mike Moran and Annette Summers run some big twin turbos. Not a LSx engine though.


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