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10-29-2012, 11:27 AM | #1 |
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Outfront Motorsports Closed-Deck Torture Test
So this all stems back from the other thread about Outfront's closed-deck being useless since I have seen cracks with them installed. Since then, they took me up on my offer to abuse one to see if their NEW design is any good. I'll give them an A for effort so far, to take the constructive critisism and actually do something about it instead of continuing to sell a worthless product. On to the pictures.
Here is the old design. Notice the minute and worthless material around the case bolt relief slots up top on the trust side. Also notice that they cut out the stock braces and pressed in one solid piece. The problem with that IMO is that the cylinders just became an open deck and pressing in the new deck will move the cylinders around more so and if the new deck expands differently then you will continue to distort the deck. Which eventually will lead to this: Their new design, leaves the stock braces and beefs up the case bolt slots. The funky looking bottom plate actually looks like that on purpose because that is where a cooling passage is on the newer HG's. The plate actually requires you to grind down you case bolts and washers about 1mm in order for them to fit into the cases. So far, I am somewhat impressed with the newer design. More to follow.
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Last edited by Crystal_Imprezav; 05-02-2014 at 10:40 AM. |
10-29-2012, 11:28 AM | #2 |
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Hardware included: Cleaned and some replated bolts. A set of the new King main bearings. Some misc gaskets and seals.
Last edited by Crystal_Imprezav; 10-30-2012 at 01:09 PM. |
10-29-2012, 11:28 AM | #3 |
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10-29-2012, 11:54 AM | #4 |
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So when you say "Torture Test" what exactly do you plan on doing?
Are you comparing it to something else? Are you going to use a real dyno? Not just VDR. Are you just planning to see how many lbs of boost, volts of knock, retarded or advanced timing it will take before it pops? Are you going to break in the motor? Are you going to also use a rallyspec closed deck block as well? For a comparison. What fuel, turbo, injectors ect ect will you be using? Will this be tested in a climate controlled room? Last edited by ...CHUCKLES...; 10-29-2012 at 01:16 PM. Reason: Spelling errors |
10-29-2012, 12:23 PM | #5 |
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With a reasonable idea of the threashold that OE cylinders bust, the idea is to prove that this solution can take you past that threshold, or this is my understanding of the test.
The bigger question for me is if this is meant to be destructive testing. Push it untill it breaks? I hope this works out and Im sure CI will document findings very well. Hats off to Outfront for stepping up to the bar. |
10-29-2012, 12:52 PM | #6 |
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Not meant to be destructive testing. The block will see the same abuse my current block sees. The idea will be to run the block at 30-32psi and to put some daily driving miles on it, hopefully run it at the track a few times when it reopens, then tear it down and see how it looks. If it truly works, we should see no cracks, less engine wear, same/good cooling, etc. JC supposedly got the sleeves to crack at around 32psi so it should be interesting to see what happens around that power level.
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10-29-2012, 12:55 PM | #7 |
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try and get that turbo to match the aq t/a car, what is that at like 700+whp now? also once you do that, some 20-30 min road race sessions of 55-8k the whole time will tell us a bit, drag I feel isn't as hard as long term hotter temps abuse
jolly good show mate, Can't wait hopefully they don't still outsource their head work from the same guys down the street, that is what I feel was the main reason in our failures, but you had more first hand experience checking out our closed decks as you teared them down, warped, ovaled, bad/inconsistant clearances, and worse of all proud of selling china parts to make the extra buck, anyone buying stuff from them be sure to ask if its oem stuff, or just supply them with the gasket kit, and a few other things, their 1/2" headstud im not sure if it arp or china stuff, but for 500 including machine work to block and putting the new insert in the heads, sounds like a china stud price, gaskets are most likely china and worst of all their h-beam forged rods are super cheezy and we are way better off using stock sti rods instead of those chuckles, what does crystal using a rallyspec closed deck have anything to do with this test? Last edited by Irv Weissmanhowerton; 10-29-2012 at 01:02 PM. |
10-29-2012, 01:07 PM | #8 |
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^^^ I am not so convinced of this, because Outfront has been doing closed deck blocks for years almost a decade or more even before the more recent 704 cases debacol have been out.
However I do think it is great Jeremy and the guys from Outfront were willing to take this task on. I would have just assumed that if they wanted to do a REAL torture test they would have sent a completed turn key motor to a legitamate engine testing faculty to prove... Something. So to me this almost seems like a blind test with no comparison, there for no matter the results it will most certainly be better than nothing and result in fantom data. I just see WAY to many loopholes in this so to speek test. But I am getting way ahead of myself this might just turn out fanominal... We shall see. |
10-29-2012, 01:13 PM | #9 |
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The rallyspec block was just a question if there was a comparison? And would that be compared to the Outfront closed deck block test to the rallyspec closed deck (if he were to test that to). Outside of that there was no reason for it.
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10-29-2012, 01:33 PM | #10 |
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JC only had a GTX35R so my HTA86 should be pretty close in comparison.
Rallispec doesn't make a closed deck block that I know of. Did you mean S&R? |
10-29-2012, 02:09 PM | #11 |
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Well any closed deck block for that matter. I could have swore rallispec did at one point (if not my bad).
But the the main point of that was to have a comparison of any kind, and not just say that this Outfront block is better or worse than... Err, aah this Outfront block. |
10-29-2012, 02:30 PM | #12 |
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As a guy in a situation where I'd be interested in actually spending the money, I'd want to know how it stacks up against a stock block, and against a standard sleeved block.
I don't know if wheel horse/torque, or just flat out boost pressure is a better number to measure (without putting fancy technology to measure actual cylinder pressure). In the end, my concern, as a potential customer, is say next year I was to run a monster turbo and really crank up the boost. What's the most cost effective way of getting my hands on a block that will handle this? Are these things going to be better than a stock block? Better than sleeves? At what cost? Looking forward to results! |
10-29-2012, 02:50 PM | #13 |
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Would it be possible to O-ring the block?
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10-29-2012, 03:02 PM | #14 |
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Thanks for doing this. Despite other critical sentiments made by other members, I really appreciate your posts.
My only concern is that you're not currently destroying blocks as is, so that makes it hard to compare. If you do manage to crack the sleeves, what does that prove? Likewise, what will it prove if the block survives considering you don't have a problem right now. Still I'm anxious to hear your thoughts after testing. |
10-29-2012, 03:15 PM | #15 |
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Once I am done testing it, the teardown should tell a lot. If the inserts are truly working well, skirt wear, ring wear, and cylinder wear should be much less than with a stock semi-closed deck motor which I will compare to. Like reid-o said, I don't destroy blocks as is so it is highly unlikey I will destroy this one but running it with identical internals to my current motor should give a decent comparison on wear.
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10-29-2012, 03:19 PM | #16 |
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Also, the previous design of their inserts probably made the sleeves weaker than stock since they were machining a step into the sleeve and replacing it with a thin piece of unsupported aluminum as the case bolts. The current insert machines less of the sleeve and the instert actually has some material behind it for support.
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10-29-2012, 03:24 PM | #17 | |
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10-29-2012, 03:39 PM | #18 |
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Sounds like a cool test.
Things that would be cool to know ahead of time. Bore Diameter(Top/Bottom), Bore Squareness(Before/After Torque plate) Milage of car before motor goes in, and millage after motor comes out(pics are win). Compression after start, after breakin, at end of testing cycle. All modifications associated with test, AEM EMS Cal Associated with Test, Log Files associated with test. Oils used with motor. Dyno Chart after breakin, and Dyno Chart at end of test. I am sure ther is more data that would be cool, but that is just off the top of my head. Are you going to put road racing miles on that motor, it seems that would be a good way to rack up some decent abuse to that motor in a short amount of time. Also I might not agree with Crystal because of other interactions with him, but I am interested in seeing the results. |
10-29-2012, 04:09 PM | #19 |
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I like this... Can't wait to see the results.
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10-29-2012, 04:28 PM | #20 |
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As long as Outfront is at least checking there bearing clearances now...............all should be good
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10-29-2012, 06:26 PM | #21 | |
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Quote:
S&R quoted me 2500 for a bare block fitted with their deck inserts. Just FYI |
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10-29-2012, 06:48 PM | #22 |
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10-29-2012, 07:06 PM | #23 | |
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Quote:
Our new sTi bare blocks with our closed deck is only $1900 and in stock. We can also perform this to your stock used block with a little time delay. This new design also works for both early and late HG designs covering the dual and quad AVCS head cooling passages. Irv, i will comment on all of your post tomorrow with some pics to debunk your myths. John Last edited by outfrontmotorsports; 10-29-2012 at 07:44 PM. |
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10-29-2012, 07:20 PM | #24 | |
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John Last edited by outfrontmotorsports; 10-29-2012 at 07:45 PM. |
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10-29-2012, 09:00 PM | #25 |
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This is very interesting. Way too many variables to, "prove", anything but very interesting. Hopefully this doesn't turn into a witch hunt, stays to the point and informative.
YMMV |
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