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Single Turbo sizing for 5.7 and 6.1 rcmd.. #622499 02/23/10 11:16 PM 02/23/10 11:16 PM
Joined: Jan 2003 Posts: 1,030 JAX FLA Curt OP super stock
Curt OP super stock Joined: Jan 2003 Posts: 1,030 JAX FLA	Suggestions for specific single turbo 5.7 and 6.1 liters would be appreciated. 15 PSI tops, blow through applications. Please no high dollar units ceramic unobtanium bearings with hyper convoluted transgential compressors...blah, blah blah, Just street use with either AtoA or meth aftercooling please. Thanks Curt Oh yeah...THAT'S gonna leave a mark!

Re: Single Turbo sizing for 5.7 and 6.1 rcmd.. [Re: Curt] #622500 02/24/10 02:56 PM 02/24/10 02:56 PM
Joined: Jan 2006 Posts: 452 nc cold85 mopar
cold85 mopar Joined: Jan 2006 Posts: 452 nc	Quote: Suggestions for specific single turbo 5.7 and 6.1 liters would be appreciated. 15 PSI tops, blow through applications. Please no high dollar units ceramic unobtanium bearings with hyper convoluted transgential compressors...blah, blah blah, Just street use with either AtoA or meth aftercooling please. Thanks Curt I would not go less than a T76 and would look more in the gt47-88 range.

Re: Single Turbo sizing for 5.7 and 6.1 rcmd.. [Re: Curt] #622501 02/25/10 10:29 AM 02/25/10 10:29 AM
Joined: Nov 2008 Posts: 833 MN hemidup super stock
hemidup super stock Joined: Nov 2008 Posts: 833 MN	Quote: Suggestions for specific single turbo 5.7 and 6.1 liters would be appreciated. 15 PSI tops, blow through applications. Please no high dollar units ceramic unobtanium bearings with hyper convoluted transgential compressors...blah, blah blah, Just street use with either AtoA or meth aftercooling please. Thanks Curt 8psi is all the stock pistons and ring lands can handle under boost and thats even pushing it. Most run a T60 on a stock block. If you want to up the boost, you'll need forged pistons at the minimum. Jerry Williams.

Re: Single Turbo sizing for 5.7 and 6.1 rcmd.. [Re: hemidup] #622502 02/25/10 09:44 PM 02/25/10 09:44 PM
Joined: Jan 2003 Posts: 1,030 JAX FLA Curt OP super stock
Curt OP super stock Joined: Jan 2003 Posts: 1,030 JAX FLA	Yes thank you. I am looking at baby steps. Install stock used complete engine. Make sure there are no drivetrain vibrations, overheating, ignition, fueling issues at maybe 4psi. Build another shortblock with a stock 6.1 crank, K1 rods and decent (diamond, CP) pistons. Then see max of approx 14 to 15 PSI boost. I sure do think an 88 MM turbo is way too big for this...but I have been wrong before. Thanks Curt Oh yeah...THAT'S gonna leave a mark!

Re: Single Turbo sizing for 5.7 and 6.1 rcmd.. [Re: Curt] #622503 02/25/10 10:10 PM 02/25/10 10:10 PM
Joined: May 2005 Posts: 1,130 Dayton, Ohio W wldtm super stock
wldtm super stock W Joined: May 2005 Posts: 1,130 Dayton, Ohio	What is this going in, if you dont mind me asking? Justin Interested in having you car wired? Drag car, street car, EFI swap? PM for details

Re: Single Turbo sizing for 5.7 and 6.1 rcmd.. [Re: hemidup] #622504 02/25/10 10:33 PM 02/25/10 10:33 PM
Joined: Sep 2007 Posts: 468 Dirty Dena, Maryland dodge turbo mopar
dodge turbo mopar Joined: Sep 2007 Posts: 468 Dirty Dena, Maryland	Quote: Quote: Suggestions for specific single turbo 5.7 and 6.1 liters would be appreciated. 15 PSI tops, blow through applications. Please no high dollar units ceramic unobtanium bearings with hyper convoluted transgential compressors...blah, blah blah, Just street use with either AtoA or meth aftercooling please. Thanks Curt 8psi is all the stock pistons and ring lands can handle under boost and thats even pushing it. Most run a T60 on a stock block. If you want to up the boost, you'll need forged pistons at the minimum. how are you only saying 8psi...that would be based on tune and if an intercooler, meth, or race gas is used....and the size doesnt matter...t-60 are you refering to a 60mm??? thats kinda of small on a 350cube engine theres a alot of factors that go into how much boost you are goin to run on that motor and that small turbo even with a bigger exh housing i think is going to cause some backpressure issues and make the air inlet temps hot 78 Adventurer 150small block turbo'd 360w/Borg S475....smoke'em

Re: Single Turbo sizing for 5.7 and 6.1 rcmd.. [Re: dodge turbo] #622505 02/25/10 10:49 PM 02/25/10 10:49 PM
Joined: May 2005 Posts: 1,130 Dayton, Ohio W wldtm super stock
wldtm super stock W Joined: May 2005 Posts: 1,130 Dayton, Ohio	top ring land on new hemi pistons is at the very top (not much material). power adders have to be conservative with boost or juice otherswise you are on borrowed time on the new hemis. it will lift the ring land up and off... i think that is why only 8 psi... Interested in having you car wired? Drag car, street car, EFI swap? PM for details

Re: Single Turbo sizing for 5.7 and 6.1 rcmd.. [Re: wldtm] #622506 02/26/10 10:40 AM 02/26/10 10:40 AM
Joined: Nov 2008 Posts: 833 MN hemidup super stock
hemidup super stock Joined: Nov 2008 Posts: 833 MN	Quote: top ring land on new hemi pistons is at the very top (not much material). power adders have to be conservative with boost or juice otherswise you are on borrowed time on the new hemis. it will lift the ring land up and off... i think that is why only 8 psi... Yup, The top ring land is only down 3mm from the top of the stock piston, plus the stock top ring end gap only has between .009"- .011" from what I've seen in all the engines I've torn down to be rebuilt. Jerry Williams.

Re: Single Turbo sizing for 5.7 and 6.1 rcmd.. [Re: wldtm] #622507 02/26/10 11:27 PM 02/26/10 11:27 PM
Joined: Jan 2003 Posts: 1,030 JAX FLA Curt OP super stock
Curt OP super stock Joined: Jan 2003 Posts: 1,030 JAX FLA	If I can sell this I will put it in this 5832651-leftdone.JPG (197 downloads) Last edited by Curt; 02/28/10 04:18 PM.

Re: Single Turbo sizing for 5.7 and 6.1 rcmd.. [Re: Curt] #622508 02/27/10 04:33 PM 02/27/10 04:33 PM
Joined: Jul 2009 Posts: 33 Calgary, Alberta T Turbo392 member
Turbo392 member T Joined: Jul 2009 Posts: 33 Calgary, Alberta	Quote: Suggestions for specific single turbo 5.7 and 6.1 liters would be appreciated. 15 PSI tops, blow through applications. Please no high dollar units ceramic unobtanium bearings with hyper convoluted transgential compressors...blah, blah blah, Just street use with either AtoA or meth aftercooling please. Thanks Curt The stock pistons will last until the 500-550 crank HP mark then it's game over. In my case with a bone stone 5.7 that was 9 psi with water/meth. The powdered rods will fail shortly thereafter. A good cheaper turbo would be a Master Power T76 with a larger exhaust housing (ie .96) 2003 Dodge Ram 1500 Turbo / Meth Injected 6.4L Hemi (392)

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