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What crankshaft...22psi....single 94mm....iron 408ci...????

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Old 06-22-2012, 07:18 PM
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Originally Posted by SKULL
whyyyyyy run a 2k hp turbo on a street car make 1000whp? that doesnt make any sense lol
What 94 are you looking at? A precision PT94 is rated at 1620 crank horsepower. With a 15% drivetrain loss you could make roughly 1350.
Old 06-22-2012, 08:30 PM
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yea and a f1r is rated to 1300 but has cars going 4.78 at 145+ in a 3300 lbs car(comes out to like 1300+whp threw an auto). but then how is say a large frame or even a mid frame 88 rated for around 1500fwhp. but still your recommending a 94mm turbo(1600 crank) for a car shooting for 1k wheel.
Old 06-22-2012, 09:00 PM
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While that may be true those cars are meant for that and every part of their equation is perfectly adopted for that blower or turbo. While in this case, its a street car. Plus the guy is on somewhat of a budget. A PT94 is $2600, where an X275 88mm is $3700..
Old 06-22-2012, 09:16 PM
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I'd recommend the latest PTE promod BB 94mm and a Callies crankshaft they think will be the best.
Old 06-22-2012, 11:46 PM
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Went to my builder today.

6.0L iron 370ci stock crank, 4.030 bore, Lunati rods, Diamond pistons, 9:1 cr

80-88mm turbo

800-850 RWHP

.
Old 06-23-2012, 12:48 AM
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Originally Posted by LS6427
Went to my builder today.

6.0L iron 370ci stock crank, 4.030 bore, Lunati rods, Diamond pistons, 9:1 cr

80-88mm turbo

800-850 RWHP

.
Yes. If you're happy with it then go with it. It seems like a full proof plan. Make sure he pins the main caps. Thick Deck Head and LS9 Headgaskets with Properly Torque ARPs and you're set.
Old 06-23-2012, 05:46 AM
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Originally Posted by TheLS1Lover
While that may be true those cars are meant for that and every part of their equation is perfectly adopted for that blower or turbo. While in this case, its a street car. Plus the guy is on somewhat of a budget. A PT94 is $2600, where an X275 88mm is $3700..
I recommended a 85ishmm turbo from the start. My buddy just got a new borg for 2100 a mid frame 88 but like I said he should get in touch with a few turbo places and find out what the ideal turbo they would recommend. Im just a noob
Old 06-23-2012, 02:26 PM
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if he's on a budget, why not a 47-88? you can find em all the time in good shape used for $12-1400. i got mine with a handful of 1/8 mile passes, looks like new, and hot coated for $1300 and is good to either 1450 or 1500 hp depending on the website you're viewing. that's a pretty decent bang for the buck imo and isn't as heavy as say an 88mm bw turbo. just a thought. but i AM a newb actually hahaha
Old 06-23-2012, 02:45 PM
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Originally Posted by PRAY HRD
if he's on a budget, why not a 47-88? you can find em all the time in good shape used for $12-1400. i got mine with a handful of 1/8 mile passes, looks like new, and hot coated for $1300 and is good to either 1450 or 1500 hp depending on the website you're viewing. that's a pretty decent bang for the buck imo and isn't as heavy as say an 88mm bw turbo. just a thought. but i AM a newb actually hahaha
That sounds good......that 47-88 shouldn't have to breath hard to just make 800-850 RWHP.......on a 370ci.


.
Old 06-23-2012, 04:11 PM
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yea a 47-88 would be a very good turbo. just do your research like i mentioned cause there is i think 2-3 different style 47-88 i believe but not positive.
Old 06-23-2012, 04:48 PM
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yea it's a bit confusing and i don't know what the differences are but to my understanding there's a Garrett and a Precision that are each called a 47-88 but i've yet to find out if 1 is better than the other.
Old 06-23-2012, 06:11 PM
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Seems like the research never ends.....then when you finally get it all built.......there's always someone that says, "oh man, you should have gone with this instead."

And it usually turns out that the this really would have been a better choice.......
.
Old 06-23-2012, 06:14 PM
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The GT4788 would be nice. I would use Garrett over Precision right now. Seems to be some problems with them. See if you can get a T6 verision if not a big A/R T4. The 4788 Turbine is somewhat "small".
Old 06-23-2012, 11:48 PM
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yea if your shooting for 1000. just go with a t6. dont try and make a t4 work cause its just a waist of time if you run into back pressure issues on the t4. then you would need a new merge to t6 and a new turbo in t6

Last edited by SKULL; 06-23-2012 at 11:53 PM.
Old 06-24-2012, 12:35 AM
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For a budget build you cannot beat the BW S480 96mm turbine 1.32 a/r. Will make 800 + rwhp all day long for around $800-900 brand new. They are a great unit that can easily be rebuilt into other sizes when you max it out (billet 83, 88mm). Very reliable units that you never hear about failing.
Old 06-24-2012, 01:43 AM
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Originally Posted by Nitroused383
For a budget build you cannot beat the BW S480 96mm turbine 1.32 a/r. Will make 800 + rwhp all day long for around $800-900 brand new. They are a great unit that can easily be rebuilt into other sizes when you max it out (billet 83, 88mm). Very reliable units that you never hear about failing.
Who sells them?

.
Old 06-24-2012, 07:37 AM
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So no one is using the Eagle or Scat rods for their boost engines?
Old 06-24-2012, 08:06 AM
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Originally Posted by LS6427
Who sells them?

.
Its a born Warner turbo. Any turbo sponsor on the site will have one
Old 06-24-2012, 10:45 AM
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Originally Posted by Nitroused383
For a budget build you cannot beat the BW S480 96mm turbine 1.32 a/r. Will make 800 + rwhp all day long for around $800-900 brand new. They are a great unit that can easily be rebuilt into other sizes when you max it out (billet 83, 88mm). Very reliable units that you never hear about failing.
Remember with the B&W turbochargers the T4 housing are a couple of hundred dollars more over the T6 housings, seems odd but that's the pricing structure. Hard to beat the price of the budget BW turbo.

I've owned a 80/83, 80/87 and presently have a 83mm billet/ 92 turbine.
presently at 706/649 hp/tq on a Mustang dyno, converter unlocked and 14% slippage of the torque converter
390, etp heads.

Last edited by mike13; 06-24-2012 at 10:53 AM.
Old 06-24-2012, 10:45 PM
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You went from 1200 goal to 850 goal. You need a power lever goal. Ill have about 1200 chp on my stock crank


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