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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 07-22-2008, 12:22 AM   #41
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Maybe I should install a supercharger because my power down low sucks.

and i have no top end.
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Old 07-22-2008, 03:50 AM   #42
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omgz you should get a "turbonator"
power ANDDDDDD mpg increase
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Old 07-22-2008, 09:38 AM   #43
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I'll do a sequential turbo kit like the one Braineak posted if someone want's to pay for it. I have most of the CAD models done on the manifolds, etc.
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Old 07-22-2008, 09:46 PM   #44
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blah, I sent my head off to get treatment from a computer measurement machine this week. I'm working up manifolds on both sides of the block. This is for sure, neither side of my engine supports a supercharger my goals are a little modest for that. That is an intiguing sequential setup though.
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Old 07-23-2008, 01:57 AM   #45
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??

Actaully I said itd be funny to hear someone mouth it off, because its so rediculous to have that many different systems combined into one. I'm not 15 I'm 24, I'm also an aerospace engineer who does this stuff in his spare time. I'm the only vendor of adaptronic E.C.U's in north america, and I engineer all my own components. I wasn't really contemplating on a hearing of the twincharged setups or even debating them. I just wanted to see the other twin charged setups... I don't quite know why all this is so hostile. Jeeze I just wanted to see who had them and what their plots looked like.
damn, you're a bad *** ************. No one has them here because we're all bad ***, and have 12" *****.
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Old 07-23-2008, 02:04 AM   #46
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Old 07-23-2008, 10:42 AM   #47
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blah, I sent my head off to get treatment from a computer measurement machine this week.
You'll find it sucks compared to most other japanese ports.

Unless you are just digitizing the flanges...
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Old 07-23-2008, 10:54 AM   #48
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You'll find it sucks compared to most other japanese ports.

Unless you are just digitizing the flanges...
I've been working on a solution for that forever, and I really haven't figured anything out. I've been bounced around between head porting companies for a while now. Most of them want 3k+ to do a first port, 1k to digitize and 1k to own the rights for what I paid for... then another 2k a piece for the CNC porting. So how long would it take to make my money back?? Forever oh ok.. I had thought about making an aftermarket head, but its a little outside of my area of expertise. I could probably finance it, but I don't have the know how when it comes to making those ports. There are what 5 guys that study port flow on a scientific level in the world?

I just wanted to digitize the flanges, but he said he'd be willing to cut one open. I have one cylinder lapped and ground for airflow testing. I've got an ITB kit I've been putting together and I wanted to play with that entry angle. I can't believe the stock manifold comes in flat to the head. It makes no sense. Have you done any research playing with it?
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Old 07-23-2008, 11:36 AM   #49
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Have you done any research playing with it?
I have not done any research, other than giving a 99, 94, and (hopefully...eventually...soon) a worked aftermarket head to a CNC shop for flow testing. My old boss actually. He has flowed the 99 head and said it sucks (obvious too looking at it compared to other's), but he's comparing it to the other heads he does. He has a few head porters and a digitizer, and of course a bunch of 5 axis machines. Where I work we also have the same digitizers and a 5 axis machine and we do ports here, but mostly prostock-style stuff so far, and all for the owner's *****-n-giggles (nothing ever for production, we're not in the head porting business). The machinist here who runs the 5axis and digitizers the most said he'd make a mazda head with honda ports (or whatever), but I'm not about to go thru that. I don't think I want to afford just the raw material, especially if there's an "oops". And I run a street car that needs to stay cool.

I don't have the desire to make a fancy head, and if I did, I'd make one, use it, and move on.
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Old 07-23-2008, 12:25 PM   #50
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why did you come to miataturbo.net to talk about superchargers? You should go here: www.superchargedmiata.com
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Old 07-23-2008, 01:02 PM   #51
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why did you come to miataturbo.net to talk about superchargers? You should go here: www.superchargedmiata.com
I pretty much didn't, hustler, stop acting like your 15. My build involves ITB's and a turbo. That being a compressor and turbine section that receives its energy from the exhaust. Pay attention will ya? Oh yea, and I didn't click your link, because I don't like superchargers, and replying to your message I'm glad I didn't. If you can put two neurons together you're realize in twin charging you're only using the supercharger as a pawn to spool a massive turbo. Such extortion should excite you, not **** you off.
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Old 07-23-2008, 01:16 PM   #52
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It does excite him....that's why he is "so" pissed off.
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Old 07-23-2008, 01:20 PM   #53
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why did you come to miataturbo.net to talk about superchargers? You should go here: www.superchargedmiata.com
Don't click on the link. It points to some other site. My email notification showed the true site. What's the deal? Turbocharging and supercharging are both forced induction. Open your mind and let knowledge flow in.
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Old 07-23-2008, 01:39 PM   #54
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Quote:
Originally Posted by paul View Post
Maybe I should install a supercharger because my power down low sucks.

and i have no top end.


exactly. n00b.
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Old 07-23-2008, 10:06 PM   #55
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Quote:
Originally Posted by Wittyfull View Post
Don't click on the link. It points to some other site. My email notification showed the true site. What's the deal? Turbocharging and supercharging are both forced induction. Open your mind and let knowledge flow in.
come on, what's wrong with a little "trannysurprise.com?"
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Old 07-23-2008, 11:05 PM   #56
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trannys are always funny.
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Old 07-23-2008, 11:08 PM   #57
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come on, what's wrong with a little "trannysurprise.com?"
probably the part where the "surprise" isnt a pleasant one
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Old 07-24-2008, 12:16 AM   #58
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come on, what's wrong with a little "trannysurprise.com?"
You're right, this IS a Miata forum...
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Old 07-24-2008, 03:01 AM   #59
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If we're talking about ridiculous setups, I've contemplated twin turboing my ITB setup. I figure if I rebuilt my motor with a ported head I may get enough flow to spool two small turbos alright. I'd do it totally ridiculous too, two seperated intercoolers, and each turbo would feed two ITB runners. That may actually happen too, depending on how much money I have when my stock motor goes pop.
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Old 07-24-2008, 04:28 AM   #60
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Originally Posted by Wittyfull View Post
I think twincharging is a good concept if you can control and smooth out the transition between SC and turbo. We may see more of this as engines get smaller and smaller.
I have to come back to this - actually we see this over here in Europe, as Volkswagen makes this 1,4l TSI engine (turbo+supercharger) which makes a good 170 bhp with a really low fuel consumption. (Due to the insane fuel prices over here)

Some technical data although in German)
http://www.volkswagen.de/vwcms_publi...tail.0.10.html

170 bhp, torque 240 NM from 1750-5000 rpm, 7,3 l/100km (I'm sorry i dont know how many mpg this is) And if it is build for Germay - it has to be completly reliable even for long full speed runs at the Autobahn. So, I would love to have such an engine in my Miata... (Or better the 2.0 TFSI...)

What I would like to say - it sure is possible, but you need a lot of engineering and money and experience and..... to get it running reliable and strong and with a sensible behaviour. (Volkswagen can manage this - but for DIY... I don't know.)

Greets
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