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I'm getting serious about this twin turbo idea....

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Old Nov 14, 2004 | 04:51 PM
  #11  
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Originally Posted by GoldenVelvet
A company called Areocharger made a twin turbo truck, but they never went into production with it and have taken it off of thier website. They used the stock exhaust maifolds mounted backwards and up side down, and it still fit with the stock fan.

Ill see if I can find a pic of it for you guys.
Me and my friend were talking about this. Flipping the stock exhaust manifold and swapping sides. Clear the stock fan!? I must see a pic of that!
Philip S.
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Old Nov 15, 2004 | 01:24 AM
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this is with my garretts, still a work in progress...
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Old Nov 15, 2004 | 01:54 AM
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Originally Posted by Fullthrottledan1
this is with my garretts, still a work in progress...
?!? Details pleas
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Old Nov 15, 2004 | 02:53 AM
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I'll have to try and get pics, a buddy of mine locally made his own twin setup on a 2500 hd 6.0 liter, and did a nice job, then had a custom made FMIC made and he plumbed that in, the nice thing is, that the turbos sit high enough ((custom headers to mount them each in front, like the upside down manifold idea)) they sit high enough for the oil return to gravity drain from the turbo's into fittings he welded into the Valve covers, so taking off the kit is very easy, no tapped lines in the oil pan, i think they are ball bearing water cooled turbos too, the thing sounds awesome!
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Old Nov 15, 2004 | 03:03 AM
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Originally Posted by ZYA_LTR
I'll have to try and get pics, a buddy of mine locally made his own twin setup on a 2500 hd 6.0 liter, and did a nice job, then had a custom made FMIC made and he plumbed that in, the nice thing is, that the turbos sit high enough ((custom headers to mount them each in front, like the upside down manifold idea)) they sit high enough for the oil return to gravity drain from the turbo's into fittings he welded into the Valve covers, so taking off the kit is very easy, no tapped lines in the oil pan, i think they are ball bearing water cooled turbos too, the thing sounds awesome!
Get him to come on line, once he's here the addiction will do the rest.
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Old Nov 15, 2004 | 12:43 PM
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If you're going twins on a 5-6L motor that rev's to 6500 you need to be be running smaller hot sides. A full T4 with a 1.15 turbine housing would be great if you were only using 1. A pair wouldn't spool till like 4000+rpm. On twin V8 we run little T2's for quick spool or at the largest T3/T4's with .63 turbine housings. A little bird told me you could get some real nice T04B's in .63 T3 turbine housings for like $500 new, but the seller would have to be a vendor here.

Kevin
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Old Nov 15, 2004 | 02:44 PM
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with the 1.15, at 12psi and 52-55lbs per min of air, these turbo's are still in the 73% range of the compressor map. if they are wrong i will change them, but i guess ill find out soon
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Old Nov 15, 2004 | 02:58 PM
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Originally Posted by Fullthrottledan1
with the 1.15, at 12psi and 52-55lbs per min of air, these turbo's are still in the 73% range of the compressor map. if they are wrong i will change them, but i guess ill find out soon
It looks like alot more work to install twins over a larger single. Is spool time lessoned that much with twins??? I love how you guys make it sound so easy!!
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Old Nov 15, 2004 | 03:04 PM
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Originally Posted by Z1500
If you're going twins on a 5-6L motor that rev's to 6500 you need to be be running smaller hot sides. A full T4 with a 1.15 turbine housing would be great if you were only using 1. A pair wouldn't spool till like 4000+rpm. On twin V8 we run little T2's for quick spool or at the largest T3/T4's with .63 turbine housings. A little bird told me you could get some real nice T04B's in .63 T3 turbine housings for like $500 new, but the seller would have to be a vendor here.

Kevin
After doing some research in the past on this and talking with a few people about spool time with twins on a 5.3/6.0L I think you're right on with the T3 exhaust housing with a .63 A/R for up to 700-800 flywheel hp. Above that a T4 housing would probably be better for top end flow.

I think you're right on about the 1.15 T4 housings not spooling till 4000+ also.
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Old Nov 15, 2004 | 05:08 PM
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Originally Posted by XLR8NSS
After doing some research in the past on this and talking with a few people about spool time with twins on a 5.3/6.0L I think you're right on with the T3 exhaust housing with a .63 A/R for up to 700-800 flywheel hp. Above that a T4 housing would probably be better for top end flow.

I think you're right on about the 1.15 T4 housings not spooling till 4000+ also.
That's why I'm leaning towards the second set I listed......

Originally Posted by Yelo
The second set is: TO4B .60 A/R compressor housings with 3" intake, 2" outlets and 47mm compressor wheels, The exhausts are T3 housings with 1.00 A/R inlets....these seem more along the lines of what I could reasonable use
I'm pretty sure the first set is too large but the second with the T3 exhaust housings seem just about right
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