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Dodge Competition and Performance General Dodge Competition and Performance Discussion |
01-27-2018, 12:56 PM
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#1
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Name: cliff-1972
Title: Too Much Time
Status: Not Here
Join Date: Nov 2006
Location: S.C.
Member`s Gallery
Posts: 444
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Changing turbine housing?
Haven't posted in years,but still around.I have been running a S475 (75/96/1.32) in my compound set up (63/68/.70 secondary).I have Weston 5 x .016 injectors, Ponci benched 180 hp pump (468cc with 181 dv's has 7 mm dv's now),5k and 22 degrees timing.It has a Maxspool 2.5 cam and ported bowls and exhaust ports head.I have a chance to buy a Garrett GT4202 (74.7/83/1.15) but was wondering if a 1.10/96 turbine housing for the BW would be better.The truck is a F250 4x4 reg cab with a built 4R100,4.10 gears and 315/75/16 tires.What is your opinion on what to do if anything?Thanks
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1996 F250 4x4 Reg Cab,98 12v,Maxspool 2.5,Weston 5X.016,AFC Live,Ponci benched pump,22 degrees,o-ring, 63/68/.70 Gen3 over S474,Dorsey Stage 4 4R100, DPC, 563hp 936ft.lbs. 7/26/14
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01-28-2018, 09:52 AM
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#2
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Name: Backhoe man
Title: nobody
Status: Not Here
Join Date: Apr 2008
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Posts: 475
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It looks to me like for the power level you are at the smaller turbine and ar will work much better. A 96/1.32 is way overkill in the 600 range, the truck will be a lot more fun to drive with the smaller setup. I have a very similar set in my 12 valve 5x14 with 351 over k31 (basically a 4202 made by BW) it drives really nice with very little smoke. My egt's are well controlled and there seems to be a little more left in it.
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01-28-2018, 09:59 AM
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#3
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Name: cliff-1972
Title: Too Much Time
Status: Not Here
Join Date: Nov 2006
Location: S.C.
Member`s Gallery
Posts: 444
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Thanks for the input.My secondary is basically a 351CW made to a 63/68/.70 by River City Turbo.I was thinking going to a 78 mm compressor wheel,but thought a smaller turbine may give me what I want.
__________________
1996 F250 4x4 Reg Cab,98 12v,Maxspool 2.5,Weston 5X.016,AFC Live,Ponci benched pump,22 degrees,o-ring, 63/68/.70 Gen3 over S474,Dorsey Stage 4 4R100, DPC, 563hp 936ft.lbs. 7/26/14
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01-28-2018, 11:25 AM
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#4
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Name: turbo2387
Title: Nipple Fluffer
Status: Not Here
Join Date: Jun 2011
Location: Indiana
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Posts: 665
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I run a 75/96/1.15. The difference from the 1.32 to the 1.15 was maybe 100rpms faster primary spool about 3psi more primary boost and zero change in egts. Was it worth newrly $300.....? Probably but wasnt a huge seat of the pants change.
I run at 425cc’s with 5x16’s and am smokeless. My secondary is a smudge bigger.
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01-28-2018, 11:50 AM
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#5
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Name: cliff-1972
Title: Too Much Time
Status: Not Here
Join Date: Nov 2006
Location: S.C.
Member`s Gallery
Posts: 444
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That's the kind of info I'm looking for thanks.
__________________
1996 F250 4x4 Reg Cab,98 12v,Maxspool 2.5,Weston 5X.016,AFC Live,Ponci benched pump,22 degrees,o-ring, 63/68/.70 Gen3 over S474,Dorsey Stage 4 4R100, DPC, 563hp 936ft.lbs. 7/26/14
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