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Old 07-31-2012, 01:05 PM   #41
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You're going to make a front mount anyway. Just do it now before you spend money/time fabbing a cross over pipe.

Honestly, in the time it takes to fab the crossover pipe, you can spend an hour more and have the front mount done. No sense in using terms like "sleeper" to justify doing it, anything less than 10psi and you'll still get whomped by most stock cars
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Old 07-31-2012, 01:13 PM   #42
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Anything more than 10psi and I'm going to whomp the rods. And I don't have time for a build right now.

But I get your point. It will take time to fab up a crossover so might as well go for the real deal
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Old 07-31-2012, 04:35 PM   #43
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You know Vlad, if you would just half-*** it like the rest of us, it wouldn't take nearly as long.
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Old 07-31-2012, 07:07 PM   #44
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Old 08-01-2012, 12:34 AM   #45
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i say try just the E85 and see how far u can get without the IC you could probibly use the stock crossover tube for some ---- about testing anyhow.

Next step would be seeing how close u can go to say 200rwtq from say 3k to 7.5k rpm. Using water meth at the higher end to allow more timing to "prop up" the top end perhaps. Letting you toe the line a bit for some extra torque without having to snap rods

Ill get some testing for that done i hope with my setup, ill have a FMIC / E85 / aqua mist HFS 3 setup on an SR20t25 stock 1.6. Other than timing and boost creep any ideas on propping up the top end ?
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Old 08-01-2012, 01:41 AM   #46
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The whole point of a hot pipe setup is to get the charge cooling from evaporating the alcohol in the E85. If don't inject fuel between the turbo and throttle body, you're wasting your time...
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Old 08-01-2012, 09:54 AM   #47
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I think people are getting distracted by some of the terminology being posted:

I never said I want to run a "hotpipe" setup. I said I want to not use an intercooler. So it would just be a cross-over tube like the non-intercooled begi kits use and what not.
I also never said I'd be injecting anything into the pipe. Because at that point its much easier to fab up an fmic than plumb in w/i or m/i.

It would simply be an intercooler-less system running on e85.

At least that's what I'm proposing: not sure If I'll even do it yet.
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Old 08-01-2012, 12:03 PM   #48
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And I'm saying you're wasting your time if you're not going to inject fuel into the crossover tube. It's going to be slow and lame. Might as well not bother turbocharging it.
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Old 08-01-2012, 02:10 PM   #49
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1. Vlad never said it would be permanent -- just something temporary.
2. All he wants to know is whether 10psi on E85 would be safe.

So, after all the responses, I guess we can report that no one here has tried it so we don't know.

My guess, based upon a similar setup with WI, is that it would be safe.

Plus, if you get some det, you can always loosen the wastegate arm and/or retard timing a bit until you get around to doing the FMIC.
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Old 08-01-2012, 04:05 PM   #50
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Yeah pretty much.

Also:
Google search turned up a BUNCH of threads on other forums where people were saying its fine and they do it regularly. About 20-30% of those people also shoot w/i into the tube. About 10% of the people said don't do it.

I dunno lol
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Old 08-01-2012, 04:19 PM   #51
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probably safe. i don't think it'll reach your power goals. just get out your sawzall already and mock up some piping. bro.
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Old 08-01-2012, 04:22 PM   #52
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I'm sure it wont hit 250, but almost certain it'd hit 200
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Old 08-01-2012, 04:33 PM   #53
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agreed. i think that's a reasonable goal for what you're trying to do. 200 is still pretty fun. more than a msm.
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Old 08-03-2012, 06:53 PM   #54
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I've been running my car @10psi for the last year w/o an intercooler on pump gas. Seems to be fine. I don't take it to the track or anything, just some street abuse. I say go for it.
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Old 08-10-2012, 09:24 PM   #55
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A lot of the older turbo/supercharger kits managed to use a straight crossover with low boost (6-9psi), and they were using bandaid fuel management. I think the compulsion to intercool comes from a why not- it's easy mentality. If you don't plan on pushing the car to its limit and measure AITs, I don't see why it can't be reliable.

I would be interested to see if a more direct flow and lower tube volume would help create more flow at a lower pressure.
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Old 08-10-2012, 11:31 PM   #56
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More flow? No
Less pressure drop? Yes

Higher AIT's? Yes
But how much higher and is it a non-issue given fuel type? That's the real question.
I understand what you're saying and know its true, and on top of that will be using a very potent EMS as well as fuel that burns much cooler, but still......
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