LS1TECH - Camaro and Firebird Forum Discussion

Forced Induction Superchargers | Turbochargers | Intercoolers

Any difference?

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Old Jul 9, 2012 | 10:56 PM
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Default Any difference?
So I went with the on3 76mm .96/.81 ar t4 and it **** itself. Throwing the oil out the exhaust and all. Not worth rebuilding since it's so cheap so I was going to try that gt45 from ebay that I see some people using. Now the question is.. The on3 turbo has an undivided t4 flange but the gt45 has a divided t4 flange.. what's the difference? Pros and cons of switching to this turbo? Goal is 10-12lbs of boost if I ever get a chance to finish the damn thing.. any input helps. Thank you
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Old Jul 9, 2012 | 11:33 PM
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Hmm. What size return/feed are you using?
Any pics of the setup?
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Old Jul 9, 2012 | 11:59 PM
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I went with modular turbo feed and drain with a scavenge pump.
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Old Jul 10, 2012 | 12:02 AM
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Got pics on my email and on my phone.
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Old Jul 10, 2012 | 12:12 AM
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Use photobucket to upload them.
How many miles on the turbo?
Any in and out shaft play?
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Old Jul 10, 2012 | 12:21 AM
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Haven't even finished build. 5 months in. does have a driving tune for work, around town and that's all. No shaft play at all. Just bleeds out the oil. Noticed when my bov started blowing oil and turbo housing went from silver to gold lol
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Old Jul 10, 2012 | 01:05 AM
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I'm thinking its something wrong with your oiling system
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Old Jul 10, 2012 | 01:09 AM
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Pulling too much?
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Old Jul 10, 2012 | 01:12 AM
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Is it a rear mount setup?

Pics speak 1000 words.
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Old Jul 10, 2012 | 02:50 AM
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How does the motor run ? Any major blowby ? Boosting on the motor with no tune ?
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Old Jul 10, 2012 | 06:13 AM
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Give me an email and I'll forward the pics. Front mount. 7Lbs but I stay off of boost. Motor runs ok not it's best. I went from stock injectors, maf to sd, so the little tuning I was able to do was to adjust fuel and a little driveability because it's my dd and only vehicle. Another factor was that I was heating up which I'm leaning towards thermostat. Switched to dual pushers and thinking about adding same as pullers. Texas heat is no joke!!! So original question.. ??? could I use that gt45 divided
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Old Jul 10, 2012 | 06:55 AM
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Yes you can use it.
But I don't think thats your problem imo
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Old Jul 10, 2012 | 08:07 AM
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Should I try a restrictor?
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Old Jul 10, 2012 | 08:59 AM
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I really don't know much about oil pumps.
Maybe some one with more knowledge can chime in.
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Old Jul 10, 2012 | 12:22 PM
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that would be nice!!
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Old Jul 10, 2012 | 12:23 PM
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on the first one you can see where the pump sits a couple inches above turbo and on the second turbo you can see the shiny oil spots all around the turbo and bov
Attached Thumbnails Any difference?-imag0943.jpg   Any difference?-imag0945.jpg  
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Old Jul 10, 2012 | 02:49 PM
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post up pics of your return line and how your pump is mounted , do you have a check valve ? in the return line after the pump ?
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Old Jul 10, 2012 | 02:50 PM
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i have never ran a restrictor on any turbo but a ballbearing ..and i run petty much all flea bay turbos
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Old Jul 10, 2012 | 08:12 PM
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http://s360.photobucket.com/albums/oo41/cjvmboricua08/
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