mechanix565 Posted September 28, 2013 Report Share Posted September 28, 2013 So I'm building a basic 5.3 l setup for my truck 03 5.3 Arp head studs Comp springs Comp 224/228 .585/.590 115lsa Comp pushrods Oem 5.3l mls headgaskets Arp rod bolts New piston rings gapped a .020 for expansion I've got as much fuel as I think I need (siemens deka 80's twin walbro 255's, fuellab fpr, edelbrock fuel rails, aem meth kit) just wondering if the turbo I have will get me to 650-700 AWHP which is my goal It's an on3 performance 76mm unit Cold Side: Compressor Wheel 76mm .80 a/r 4 Inlet and 2.5 Compressor Outlet Inducer- 76.71mm Exducer- 102.36mm Exhaust Side: Exhaust Housing T-4 Flange .96 ar Exhaust housing 3.0" Vband outlet Inducer- 74.5mm Exducer- 65mm From the looks of it I think it will be sufficient I plan to upgrade to a turbonetics t78 later but I'm hoping to get a little while our of this Quote Link to comment Share on other sites More sharing options...
Cramer Posted September 28, 2013 Report Share Posted September 28, 2013 I have heard mixed reviews on them as a turbo but bad reviews of the customer service from them. I do have a MP T-70 turbo that is brand new and has all the fittings and a custom cover I made for the exh housing that I want to get off my hands. The specs are very similar to the O3P turbo you are looking at. I believe it is the P-Trim but I will have to double check that. It does have the .96ar housing on it. 810031-496T-70 / P-TRIM450-700.70101.764.069.191.058.96T4V-BANDUNDIVIDED64.574.076 810053-096T-70 / Q-TRIM450-700.70101.764.069.191.058.96T4V-BANDUNDIVIDED67.074.082 Quote Link to comment Share on other sites More sharing options...
mechanix565 Posted September 28, 2013 Author Report Share Posted September 28, 2013 Well I already own the turbo so I think I'm gonna try it out and see how it does I'm Judy curious if the compressor and turbine specs can support what I'm looking for Quote Link to comment Share on other sites More sharing options...
AKSSS Posted September 28, 2013 Report Share Posted September 28, 2013 How much boost are you planning on trying to get out of that turbo? That turbo should really start to make some power about 10-11 psi. Don't get me wrong it will make good power at lower levels but you won't get the turbo really working until 10+ psi. What compression motor? Stock? I am just guessing with a stock setup you would need around 13-15psi for 550-600hp. Quote Link to comment Share on other sites More sharing options...
AKSSS Posted September 28, 2013 Report Share Posted September 28, 2013 By the way. I would have to look but I am pretty sure that the master power turbo I have is identical to that on3 turbo you listed. I am running low compression and at 12psi I am getting about 600hp I am guessing from my 1/4times. Quote Link to comment Share on other sites More sharing options...
mechanix565 Posted September 28, 2013 Author Report Share Posted September 28, 2013 (edited) Stock compression Resurfaced heads and block Mls headgasket Arp head studs Arp rod bolts Piston rings gapped at .020 Custom grind 224/228 .585/.590 115 lsa turbo cam Comp .600 behive springs Siemens deka 80# injectors Aeromotive rails and regulator Twin walbro 255 in tanks on Hobbs switch And I have meth ill send as much boost through this pig as it will take as long as I'm not detonating ill run 18psi through it Edited September 28, 2013 by mechanix565 (see edit history) Quote Link to comment Share on other sites More sharing options...
mechanix565 Posted September 28, 2013 Author Report Share Posted September 28, 2013 I really want to hit 700 on 93 pump and meth then ill tone it down a bit so it lasts Quote Link to comment Share on other sites More sharing options...
AKSSS Posted September 28, 2013 Report Share Posted September 28, 2013 I think it is just going to be a matter of your tuning. You will get it there. I think that setup can. Get an electric boost controller. I have my waste gate at 7psi, then I flip my switch and it goes to 12psi and turns the meth on. It has worked out great for me. Quote Link to comment Share on other sites More sharing options...
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