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Post by denz on Apr 1, 2010 20:58:48 GMT -5
pics or vid or it never happened. lol
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Post by turbo23240sx on Feb 19, 2012 4:05:52 GMT -5
I never posted my last outing which was a the begining of the season. I ended up running 12.40 @ 110mph with 26psi from the stock T3 and a slipping clutch.
There is a vid on youtube and you can hear it driving through the clutch on top end. I need to figure out how to post it.
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Post by Matt Culpepper 2300gearjammer on Feb 19, 2012 19:27:28 GMT -5
Just copy/paste the link here
Also 26psi on a stock T3 probably isnt helping you much
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Post by turbo23240sx on Feb 20, 2012 2:05:23 GMT -5
Well running 26psi is when it ran the fastest times, so i guess it did help? I spray pre compressor which helps broaden the compressor map, hence why it made the power it did on the small turbo.
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Post by ericmitchell on Feb 20, 2012 9:33:50 GMT -5
Any where I can read up on spraying before the compressor? Don't remember, but were you running fmic? Curious to How liquid does sprayed through cooler
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Post by turbo23240sx on Feb 20, 2012 14:17:04 GMT -5
The methanol is evaporated as soon as it enters the compressor, there is no liquid going in the intercooler. Yes i had a front mount but think it was hurting after some testing i did.
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Post by ericmitchell on Feb 20, 2012 15:52:53 GMT -5
It was hurt, or it was hurting performance? Care to elaborate on testing.
I wasn't sure if you'd even run one being blow through deal
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Post by turbo23240sx on Feb 20, 2012 18:16:32 GMT -5
It was restictive and it was a pretty large cooler which was suprising. I need to test more with out it but i think it will go faster with it removed.
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Post by ericmitchell on Feb 20, 2012 20:23:21 GMT -5
Just take it off and see if it mph more
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Post by turbo23240sx on Feb 20, 2012 21:28:52 GMT -5
I wish i could but the car now has a twin turbo 5.0 in it now.
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Post by Stinger on Feb 20, 2012 22:16:08 GMT -5
There isn't any practical reason for a high boost setup to lose power with an FMIC unless 1) the tubing is too small, 2) the IC is too small, 3) the IC core is severely restrictive, 4) there is a boost leak, or 5) you're getting insufficient airflow over the core. The only other reason would be if the tune goes south when the cooler, denser air is introduced into the setup.
You can't defy the laws of Physics and Physics shows that cooler air is more dense, denser air allows more oxygen to get into the engine, and more oxygen = more power.
There is a reason that the only high output turbo race cars that don't run an intercooler are those that run alcohol.
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Post by turbo23240sx on Feb 20, 2012 23:13:24 GMT -5
It's strange as it's a large power stroke intercooler and it loses 5lbs of boost. I wish i had ran it with it by passed with the meth injection as i feel it would have picked up.
It has 2.5" inlet and outlet but it is restictive. I have spoke to a very sharp guy that builds real high powered cars and he was not surprised by it and actually told me before he thought that would happen?
People don't do enough testing i guess they just assume things work and they more than often aren't correct.
Has anyone else done this testing or is it assumption the intercooler is proper for their application?
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Post by Stinger on Feb 20, 2012 23:29:44 GMT -5
A Powerstroke intercooler has horribly restrictive end tanks so I'm not surprised. Note how the end tanks are very close to the end of the core which causes the air to flow horizontally past the openings in the core rather than directing the air into the core. A 5psi drop indicates it was severely restrictive.
Again, you can't defy the laws of Physics. If there aren't any issues with the setup (outlined above), you'll make more power with an intercooler, period. It's not an "assumption", it's Scientifically proven.
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Post by turbo23240sx on Feb 20, 2012 23:37:31 GMT -5
Yes i think the powerstroke is resticitve which is suprising as they run decent boost pressures on a large engine. What i meant is has anyone tried running with their cooler bypassed to know for a fact that it isn't resticting like mine?
I know a cooler will help if sized properly i'm not arguing that fact, i question how many people have a resticitive cooler and just assume it is helping when it might be hurting?
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Post by Stinger on Feb 20, 2012 23:43:47 GMT -5
There are certainly some people running around with restrictive or minimally effective intercoolers. The stock 2.3T intercoolers are an example. They flow well but their location makes them heat soak from the exhaust manifold which kills their effectiveness. They typically still work better than no intercooler at all though. My old Volvo intercooler setup was horribly inefficient as it doesn't cool very well but it allowed me to run an additional 6-7psi over no IC at all.
There was a guy on Turboford years ago that made over 500rwhp through a very small Starion intercooler. He couldn't figure out why he couldn't make more and finally measured pressure drop and it was something insane like 12psi across the core. He was using an intercooler designed for ~200hp on a setup that should make 3x that amount.
You're results are also severely polluted by your use of Meth Injection. It allowed you to get away with running a ton of boost without detonation. Had you been on straight pump gas, you'd find you couldn't run more than 15psi or so without an IC and most likely more with the IC at that point.
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