Jason's reverse Build
03-30-2010, 02:27 PM
#342
I'm with the other guy - bad penetration on the welds or the material is too thin. It's a balloon with sharp corners. Bad design idea. :-) Making it thicker (heavier) would work, or even just adding material at the corners would help. Posts through it could help, too.
FYI, the OEM intake can handle serious backfires. :-) A guy once came down the street 6 houses cause he said my garage scared him and he came to offer medical assistance, the last explosion he'd heard like that was in an iraqi war zone. :-)
Perhaps (though I'd hate to mess with the flow) putting a bolt or two through it would really help hold it together, to keep it from ballooning? Or a clamp/strap on the outside? Seems iffy, really good high res close ups of the weld would help someone who knows welding (and I know a few if you don't) tell you if it's the fault of the weld.
FYI, the OEM intake can handle serious backfires. :-) A guy once came down the street 6 houses cause he said my garage scared him and he came to offer medical assistance, the last explosion he'd heard like that was in an iraqi war zone. :-)
Perhaps (though I'd hate to mess with the flow) putting a bolt or two through it would really help hold it together, to keep it from ballooning? Or a clamp/strap on the outside? Seems iffy, really good high res close ups of the weld would help someone who knows welding (and I know a few if you don't) tell you if it's the fault of the weld.
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04-03-2010, 02:00 PM
#344
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I'm fairly certain that it could have been easily welded back up, but it would have just failed again. 17# is what I run on low boost and on high boost it needs to withstand upwards of 32#.
I felt the best course of action is to let the guy that designed it have the first opportunity to come up with a fix for it. So currently the manifold is back at Flipside as of last Monday. Rob took a look at it and listened to my concerns. Not sure what his plan is going to be, but I will post up about it when I get the manifold back.
As much as I like the Flipside manifold, I decided to put a 99 intake manifold on the car this week. I'm in the process of finishing that up this weekend. I wish it was as easy as just bolting it on, but I need to re-work my cold side piping, a bunch of wiring, etc... Having a reliable car that I can actually drive is of utmost importance to me right now. I'll most likely sell the Flipside manifold when I get it back.
I felt the best course of action is to let the guy that designed it have the first opportunity to come up with a fix for it. So currently the manifold is back at Flipside as of last Monday. Rob took a look at it and listened to my concerns. Not sure what his plan is going to be, but I will post up about it when I get the manifold back.
As much as I like the Flipside manifold, I decided to put a 99 intake manifold on the car this week. I'm in the process of finishing that up this weekend. I wish it was as easy as just bolting it on, but I need to re-work my cold side piping, a bunch of wiring, etc... Having a reliable car that I can actually drive is of utmost importance to me right now. I'll most likely sell the Flipside manifold when I get it back.
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04-03-2010, 06:46 PM
#347
Have you considered using the Edelbrock manifold. There are some mega horsepower Miatas running them, I bet they are relatively inexpensive compared to sheet metal. It does not look as good a sheet metal intake, but it should handle any amount of boost you can throw at it.
The tubed Miata that is going low 9's at 150+mph is using that manifold. I have seen it on a few other cars. I think it is worth checking to see what kind of flow and boost they can handle, and if it is still available.
I can't wait to see how the car runs when it is back together.
The tubed Miata that is going low 9's at 150+mph is using that manifold. I have seen it on a few other cars. I think it is worth checking to see what kind of flow and boost they can handle, and if it is still available.
I can't wait to see how the car runs when it is back together.
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04-03-2010, 11:46 PM
#348
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At this point I'm going to just take it easy for a bit and see what happens. If I don't start driving this car soon, I'm going to end up selling it. With that being said, I finished everything up and the car is ready to drive again. I'll go over it again tomorrow to make sure I didn't miss anything and then it's time for a drive. I hope it doesn't rain.
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04-04-2010, 10:45 PM
#349
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What a wonderful day. I took it out and beat the ever living **** out of it, all the way to the gas station and then back home the long way. The plan was to go further, but I left the hood at home and it was starting to rain.
Overall it's a bunch quieter now that I'm not running an open dump tube. I also installed an aftermarket exhaust cam. When I get back on the dyno to do some tuning I'll get it dialed in and see if it will give me any extra power.
Overall it's a bunch quieter now that I'm not running an open dump tube. I also installed an aftermarket exhaust cam. When I get back on the dyno to do some tuning I'll get it dialed in and see if it will give me any extra power.
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04-11-2010, 02:52 PM
#353
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Did a few pulls on the dyno to see what the car is putting down with the 99-00 intake manifold. VICS was locked in the open position and this was at 19# (wastegate).
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04-11-2010, 09:36 PM
#355
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It also sounds quite a bit different with the dump tube plumbed back in. Ben was nice enough to do a flyby in it today so I got to hear it from outside the car and I think it sounds awesome.
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04-11-2010, 10:19 PM
#357
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It's fully spooled at 4500. As for the other boost levels, I'm not sure and I don't have a log available. With a mbc or ebc I should be able to get it spooled a few hundred rpm earlier. When I do put a boost controller on it I will shoot for a solid 20.5 and call it a day on pump gas. I haven't done this yet because my injectors are already maxed out up top.
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