2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Dual Throttle Body

Old Aug 18, 2003 | 05:08 PM
  #26  
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That must be some really restrictive stock intake manifold to yeild so much HP.

I still don't beleive it.
Old Aug 19, 2003 | 08:36 AM
  #27  
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TIG welders aren't unicorns. Try radiator shops, machine shops....welding shops.
Old Oct 2, 2003 | 02:04 PM
  #28  
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We simply ran a brake cable from a bike across the throttle bodies. Yes, the car is going to suck in the air it needs, but it can potentionally suck in more air this way due to more air being readily available. Like i said, i rode with him and i did feel a power increase in his car. By the way, it would take a tig welder to weld an intake manifold, they're aluminum. I'm not sure where to find a tig welder.

quote from O 16581 72452 5

I'm a welder and just for a little insight to the conversation, just because it is alluminum doesn't mean you have too tig weld it you can also mig weld it, and there are a couple other methods, oh and we probably sound cocky too you only because some people in here know what there talking about, i can't say i'm one of them, ha ha
Old Oct 2, 2003 | 02:50 PM
  #29  
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Originally posted by Cory Simpson
You should talk to most of the FD people!!!

And were not cocky, it just doesn't seem practical.
Old Oct 2, 2003 | 05:02 PM
  #30  
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Originally posted by blackdiamond
We simply ran a brake cable from a bike across the throttle bodies. Yes, the car is going to suck in the air it needs, but it can potentionally suck in more air this way due to more air being readily available. Like i said, i rode with him and i did feel a power increase in his car. By the way, it would take a tig welder to weld an intake manifold, they're aluminum. I'm not sure where to find a tig welder.
Let's see...I think the original post was from a Hyundai?&nbsp So where is the RX-7 application?


quote from O 16581 72452 5

I'm a welder and just for a little insight to the conversation, just because it is alluminum doesn't mean you have too tig weld it you can also mig weld it, and there are a couple other methods, oh and we probably sound cocky too you only because some people in here know what there talking about, i can't say i'm one of them, ha ha
Wow, so you're going to weld an aluminum piece that's casted...
Boy, aren't we looking smart today...


I'd file this whole thread in the bullshit bin.&nbsp The FC's run some of the biggest TB area for it's engine size.&nbsp The restriction is not in the TB itself - look in the exhaust or engine porting for better gains.


-Ted
Old Oct 2, 2003 | 08:05 PM
  #31  
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Originally posted by O 16581 72452 5
I'm glad i didn't buy an FC, i don't want to be part of this cocky group of people.
There are a select few of regulars in this forum that are real morons. They see someone getting flamed, don't know **** about the said topic, and just jump on the bandwagon, trying to be cool...

For the record I don't think on an RX7 it would yeild much gain, the TB is already huge, IMO. I looked into using a single plated TB from a beefy GM V8 in conjunction for a future EMS, and after close comparison from the size of the V8 TB, I realised the stock TB is freaking huge for all of 1.3 litres. From what I can see also it's much better off using the stock TB as it's (probably) got a much better flow and volume for the way the runners all bolt up. I haven't yet started a thread about using a customized non-stock based TB though, so I can't give you much more information that just what I have observed.
Old Oct 2, 2003 | 11:10 PM
  #32  
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This thread is so funny. Two throttle bodies gives you the opportunity for two ebay air fans after the cone filters guys, ok?
Old Oct 3, 2003 | 01:41 AM
  #33  
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Originally posted by Black13B
There are a select few of regulars in this forum that are real morons.
Yes, and they always blindly jump on the bandwagon to support dumb ideas, and get upset when the more educated and experienced forum members criticize the dumb ideas. See also the threads on the air pump supercharger and the electrically-controlled Tesla supercharger.
Old Oct 3, 2003 | 07:54 AM
  #34  
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Originally posted by Evil Aviator
Yes, and they always blindly jump on the bandwagon to support dumb ideas, and get upset when the more educated and experienced forum members criticize the dumb ideas. See also the threads on the air pump supercharger and the electrically-controlled Tesla supercharger.
Exactly.

I read that thread, actually.. It was pretty funny..

It must be why so many guru's get so embittered after being here so long..
Old Oct 3, 2003 | 09:48 AM
  #35  
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I have a question isn't timing greatly affected by the length, shape, volume, etc of the manifold? Maybe I was wrong on where I read this, but if you added a second tb on the actual manifold wouldn't that cause big timing issues? And if that were true there would be no way to accurately adjust timing for both rotors to run right. This is just on the basis that timing is greatly affected by the manifold, so please if I'm wrong point it out.

- Steiner
Old Oct 3, 2003 | 01:37 PM
  #36  
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for this to work well on our cars, we would need a whole new intake manifold. At that point, it would prolly be better to go get an aftermarket edelbrock throttle body for a big v-8. have you seen what our throttle bodys look like?
Old Oct 3, 2003 | 01:48 PM
  #37  
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I don't even know what to say...

The throttle body on an RX-7 is not a restriction. It is the rest of the engine (ports).

Even if it was, you would see better results using a larger aftermarket throttle body, as well as saving the weight and complication of putting another FC throttle body on the intake....

Connecting an AFM in parallel with another AFM is just plain dump. Resistors in parallel behave in a certain way, defined by Rt=(R1 x R2)/(R1 + R2) ). It is not a linear relationship. I can only imagine how this would confuse the hell out of the ECU...
Old Oct 3, 2003 | 02:00 PM
  #38  
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I would bet that if you carbed a fc with this guys duel setup he made it would spank the **** out of 85% of the NA's on this forum. Keep up the good work on fabing your own equipment. Don't stop trying things because someone thinks its stupid.
Old Oct 3, 2003 | 02:50 PM
  #39  
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Originally posted by Bukwild
I would bet that if you carbed a fc with this guys duel setup he made it would spank the **** out of 85% of the NA's on this forum. Keep up the good work on fabing your own equipment. Don't stop trying things because someone thinks its stupid.
I think this guy is a motivational speaker...


-Ted
Old Oct 3, 2003 | 06:13 PM
  #40  
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Originally posted by Aaron Cake
just plain dump.
Old Oct 4, 2003 | 01:27 AM
  #41  
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Originally posted by RETed
I think this guy is a motivational speaker...


-Ted
LOL, I'm motivated to build a carbed duel EFI setup right now!

Um, does that mean the the carb duels against the two throttle bodies, or that the carbs go onto the two throttle bodies that are dueling each other for signal values to the EMS, or what? Nevermind, I'm going to spend lots of time and money ruining my car even if I don't know what I'm doing!

Oh, one more thing, does anybody know where I can buy JB Weld by the gallon, or can I just use Liquid Nails?
Old Oct 4, 2003 | 01:58 AM
  #42  
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LIQUID NAILS SUCKS
Old Oct 4, 2003 | 06:11 AM
  #43  
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Heh, this thread is still alive. Read the comments in that link, the FB owners were supportive, not cocky. It was just an idea for someone that had extra parts laying around.
Old Oct 4, 2003 | 10:56 AM
  #44  
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Sorry, "dumb"...
Old Oct 4, 2003 | 11:00 AM
  #45  
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Originally posted by Aaron Cake
Sorry, "dumb"...
It was funnier as dump.. Sounds like something I would say..
Old Oct 4, 2003 | 01:40 PM
  #46  
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Man, sometimes this forum is sad. Why do you guys gotta hate like that?

Just because somebody does something different does not mean it is incorrect. So how many of you guys have used JBweld before? Or have you heard from somebody by somebody by somebody on forum that it is bad. Using it on my TB mod with no prob.

The burden of proof is on O 16581 72452 5 to prove it. So why don't you let him instead of sounding like an *** like this forum is turning into?

James
Old Oct 4, 2003 | 05:05 PM
  #47  
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I never said it would work on an Rx-7, but it was proven to work great on another car.

Originally posted by Aaron Cake


Connecting an AFM in parallel with another AFM is just plain dump. Resistors in parallel behave in a certain way, defined by Rt=(R1 x R2)/(R1 + R2) ). It is not a linear relationship. I can only imagine how this would confuse the hell out of the ECU...
The S-AFC has a setting on it so it can process both of the signals.


Last edited by O 16581 72452 5; Oct 4, 2003 at 05:07 PM.
Old Oct 4, 2003 | 05:12 PM
  #48  
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This forum is where hating flourishes. Go to Nopistons.com if you want any kind of consistent moral support. Sure, they'll rip you up for fun but not in a cocky way. They call this forum a **** camp!
Old Oct 4, 2003 | 06:14 PM
  #49  
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Originally posted by O 16581 72452 5
I never said it would work on an Rx-7, but it was proven to work great on another car.
Last time I looked, this was an *RX-7* Forum - at the very least, it was inappropriate.


-Ted
Old Oct 4, 2003 | 06:17 PM
  #50  
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Originally posted by Wankel7
Just because somebody does something different does not mean it is incorrect. So how many of you guys have used JBweld before? Or have you heard from somebody by somebody by somebody on forum that it is bad. Using it on my TB mod with no prob.
Oh yes it does...

If someone says..."if one turbo is great, why not run two turbos?"&nbsp I bet you would've fell off your chair.&nbsp The whole online community is usally nasty - if you've found a good one, then count yourself lucky.&nbsp Having it unmoderated (to a point) allows all kinds of leeway in terms of posting and replies - this one should've been deleted for being totally inappropriate in the first place.&nbsp Society has degraded ourselves into turning more hostile than more friendly - too much **** gets posted and claimed online.&nbsp Do you disagree?&nbsp I will sometime lose my cool and post something nasty - it's more frustration that anything.


-Ted

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