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Old 01-05-2013, 02:52 PM   #1
cummins624

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Vp twin set up question

Right now I'm running a super b special (64/71/14) and am wanting to look into a twin set up. Was thinking a 64/s475 but was told they were too close to work properly. So then I thought a 64/s480 but was told my vp will not fuel enough to make them spool.


So now here's the question... It might just be my redneck logics but i know a 62/s475 is an awesome set up, and there is 13mm between the two turbo sizes. So would a 64/s478 work out for me? Trying for something different. A buddy of mine is running something lIke a 66/83 and says it runs pretty well. I did think it was a little too laggy for my liking. What's everyone's opinion on the 64/78
 
Old 01-05-2013, 03:05 PM   #2
BiodieselPower
 
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Either the 78 or 80 will work fine
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Old 01-05-2013, 03:12 PM   #3
stubz616
 
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I have a 64/74/14 and am going to eventually put an S480 under it. Its gunna have a benched 180 pump with 5x.018's fueling it though... I would think an 80 would be big but would still be okay for you. the 78 would be better though
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Old 01-05-2013, 03:24 PM   #4
cummins624

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So you guys think a 64/78 would spool alright for a daily driver? Im running 200hp cpp 7x0.012 injectors right now but will probably bump up to 250hp sticks when the time comes. Just dont want lag up the ass
 
Old 01-05-2013, 04:16 PM   #5
5.9LtrPwrJkeEtr
 
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Bwwwhahaha who in the hell told you a s475 wouldnt work well with a 64?? I ran a 64 over a s475 and it ran 12.0 with egts staying under1400* at WOT. I DD it as well and towed great. Lol the things i hear sometimes cracks me up!!!!
 
Old 01-05-2013, 04:17 PM   #6
5.9LtrPwrJkeEtr
 
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O yea not to mention i was running 300hp injectors and a monster pump
 
Old 01-05-2013, 04:33 PM   #7
cummins624

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5.9ltr- how did they spool
 
Old 01-05-2013, 04:43 PM   #8
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Click the image to open in full size.
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Old 01-05-2013, 04:51 PM   #9
5.9LtrPwrJkeEtr
 
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Quote:
Originally Posted by cummins624 View Post
5.9ltr- how did they spool
It spooled faster than our stock 97 12 valve.
 
Old 01-05-2013, 04:53 PM   #10
5.9LtrPwrJkeEtr
 
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Smokem i love your signature very true!
 
Old 01-05-2013, 05:04 PM   #11
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Mark Twain is a personal favorite.
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Old 01-05-2013, 05:20 PM   #12
cummins624

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EGTs easily kept under control running on the road?
 
Old 01-05-2013, 05:21 PM   #13
cummins624

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Also did you have them on a 12v or vp?
 
Old 01-05-2013, 05:26 PM   #14
Smokem
 
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I'd get some of those 500hp stickzzzz and some 66/S488 twins, should make 800hp with a VP44 and spool faster than an HY35 on gravel.
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Old 01-05-2013, 05:34 PM   #15
cummins624

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Ya thanks your real awesome ... Said no one ever. I'm looking for real advise here not smart a$$ remarks
 
Old 01-05-2013, 05:37 PM   #16
Smokem
 
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Advice...?
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Old 01-05-2013, 05:41 PM   #17
cummins624

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Ya as to which of the three turbos would be a better choice for a dd
 
Old 01-05-2013, 05:44 PM   #18
Smokem
 
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You asked for advise....not advice. I'd advise you to size the turbochargers on more than soley the compressor wheel size.
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Old 01-05-2013, 05:45 PM   #19
5.9LtrPwrJkeEtr
 
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That was with a vp. Egts were great on the road
 
Old 01-05-2013, 05:47 PM   #20
Smokem
 
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Seems to be a few options...

Quote:
S400
Turbine Wheel
74/83, 77/87, 80/87, 82/87, 82/92, 88/96
Comp Wheel
66/100
71/100-----89lbs/min
75/100-----100lbs/min
76/107-----104lbs/min
78/110
80/116-----120lbs/min
83/119
88/xx
91/xx
Housings
T4 .90, 1.00, 1.10, 1.25
T6 .90, 1.10, 1.32, 1.51
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Last edited by Smokem; 01-05-2013 at 05:48 PM.
 
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