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

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Old 11-03-06, 06:59 AM
  #1  
army88rx-7

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Throttle Bodies!!!!!!!!!!!

Has anyone used this type of throttle body setup on there car, does it help, is it a good investment, and how much power could you hope to see. Also do you have to use some sort of emanage system

EFI Hardware IDA Throttle Body Kit - Suit Mazda 12A, 13B Rotary
$852.00AUD (inc GST)
$774.55AUD(ex GST)

here is the link to where i found the throttle body

http://www.tweakit.net/shop/index.php?cPath=27_176
Old 11-03-06, 09:34 AM
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Sorry, but if you have to ask the ECU question, then you need to research this a little better and understand what you are looking at. Hint: this is not a "drop in" upgrade.

-b
Old 11-03-06, 10:24 AM
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You also need a lower intake manifold, EMS, fuel injectors, a good tuner, and a few other little things.

Otherwise it's a great upgrade for an NA.
Old 11-03-06, 10:31 AM
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thats some expensive HP.....
coud turbo swap cheaper.
Old 11-03-06, 10:34 AM
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yep we like throttle bodies.............
Attached Thumbnails Throttle Bodies!!!!!!!!!!!-dcao0092.jpg   Throttle Bodies!!!!!!!!!!!-dcao0093.jpg   Throttle Bodies!!!!!!!!!!!-dcao0094.jpg  
Old 11-03-06, 10:42 AM
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Originally Posted by army88rx-7
Has anyone used this type of throttle body setup on there car, does it help, is it a good investment, and how much power could you hope to see. Also do you have to use some sort of emanage system

EFI Hardware IDA Throttle Body Kit - Suit Mazda 12A, 13B Rotary
$852.00AUD (inc GST)
$774.55AUD(ex GST)

here is the link to where i found the throttle body

http://www.tweakit.net/shop/index.php?cPath=27_176
Yes they do help a lot, you will most definately need a stand alone ECU (don't forget the intake manifold). I will also suggest you look at www.kgparts.com
Old 11-03-06, 10:43 AM
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Originally Posted by banzaitoyota

Last edited by KNONFS; 11-03-06 at 10:45 AM.
Old 11-03-06, 10:43 AM
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I was waiting for someone to post those generic answers again. Typical as that's the only way on the forum of doing things. What intake should I use? Search and then swap a turbo on it instead. How should I port my motor? Search and then swap a turbo on it instead. What about supercharing? Search and the swap a turbo on it instead. What if I don't want a turbo? Get over it, do a search and swap a turbo on it instead. What exhaust should I use? Search and then install a turbo. What about a 3 rotor? Search noob and then turbo it. How should I mod my n/a? You shouldn't. Search and then sell it and buy a T-II. What if I have the money to do what I want? Search, then save your money, do it as cheaply as you can with a turbo swap, and give your money to the poor 2nd gen owners so they can turbo it.

Come on people. When someone asks a question, answer it with a valid answer. At least a few people have been cool enough to give a valid answer.
Old 11-03-06, 10:51 AM
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whats going on?

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drop in? no. will it bolt up with the other appropriate intake manifold? yes, yes it will. the problem lies within the realm of reality. meaning, what have you done to warrant such a modification. the only thing i see this necessary for is a full bridge or a p port setup.
Old 11-03-06, 10:54 AM
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whats going on?

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Originally Posted by banzaitoyota
yep we like throttle bodies.............
wouldnt the fuel injectors before the throtle plate on that one setup cause problems for part throtle and below?
Old 11-03-06, 10:57 AM
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Originally Posted by rotarygod
I was waiting for someone to post those generic answers again. Typical as that's the only way on the forum of doing things. What intake should I use? Search and then swap a turbo on it instead. How should I port my motor? Search and then swap a turbo on it instead. What about supercharing? Search and the swap a turbo on it instead. What if I don't want a turbo? Get over it, do a search and swap a turbo on it instead. What exhaust should I use? Search and then install a turbo. What about a 3 rotor? Search noob and then turbo it. How should I mod my n/a? You shouldn't. Search and then sell it and buy a T-II. What if I have the money to do what I want? Search, then save your money, do it as cheaply as you can with a turbo swap, and give your money to the poor 2nd gen owners so they can turbo it.

Come on people. When someone asks a question, answer it with a valid answer. At least a few people have been cool enough to give a valid answer.
you must have missed
is it a good investment
Old 11-03-06, 11:13 AM
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Originally Posted by rotarygod
I was waiting for someone to post those generic answers again. Typical as that's the only way on the forum of doing things. What intake should I use? Search and then swap a turbo on it instead. How should I port my motor? Search and then swap a turbo on it instead. What about supercharing? Search and the swap a turbo on it instead. What if I don't want a turbo? Get over it, do a search and swap a turbo on it instead. What exhaust should I use? Search and then install a turbo. What about a 3 rotor? Search noob and then turbo it. How should I mod my n/a? You shouldn't. Search and then sell it and buy a T-II. What if I have the money to do what I want? Search, then save your money, do it as cheaply as you can with a turbo swap, and give your money to the poor 2nd gen owners so they can turbo it.

Come on people. When someone asks a question, answer it with a valid answer. At least a few people have been cool enough to give a valid answer.
No offense intended, but can you point me to your valid answer...

I ask because you seem to be one of the people who can come up with a valid answer...

Last edited by My5ABaby; 11-03-06 at 11:17 AM.
Old 11-03-06, 01:53 PM
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Rotors still spinning

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Originally Posted by snowball
you must have missed
The question of it being a good investment is one based on opinion. To those who just say stay cheap and go turbo, then no it isn't. Everytime someone asks an opinion on this forum, someone always responds with "go turbo" or sell it and buy a T-II", or do a T-II swap", or something along those lines.

At the same time, questions like "is it a good investment" bug me in the same way that quesitons like "what turbo should I use", "what intake should I use", "what exhaust should I get", or "how should I port my engine" bug me. When asking an opinion of course you'll get different answers. The problem is that there is only one or 2 generic answers here. The first is to go search. The other is to go turbo. That's it. We could just have a line in the FAQ section that states that these are the answers to all questions posted. I appreciate the people who actually give useful answers to the question rather than generic ones. He'll make up his own mind.

Admittedly I haven't given him a good answer yet in this thread. I will say that Individual runner throttlebodies can be very nice but you absolutely must use a standalone ecu. No ghetto rigging with the stock ecu. Is it a good investment? Sure.
Old 11-03-06, 01:56 PM
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Originally Posted by rotarygod
Admittedly I haven't given him a good answer yet in this thread. I will say that Individual runner throttlebodies can be very nice but you absolutely must use a standalone ecu.
How so? My knowledge in this area is basically 0.
Old 11-03-06, 02:31 PM
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Rotors still spinning

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Originally Posted by My5ABaby
How so? My knowledge in this area is basically 0.
In regards to which part? Why do you need a standalone ecu? Keep in mind when I say standalone I don't mean S-AFC or any other limited piggyback system.
Old 11-03-06, 02:51 PM
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Originally Posted by rotarygod
In regards to which part? Why do you need a standalone ecu? Keep in mind when I say standalone I don't mean S-AFC or any other limited piggyback system.
In regards to the throttle body being "nice". I figured a standalone would be necessary. From what I gather, they're pretty necessary for anything other than minor/moderate modding.
Old 11-03-06, 07:11 PM
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I'm about to leave right now but I'll answer that when I get more time. It'll get a little lengthy.
Old 11-04-06, 03:20 AM
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first of all, pretty much nothing you can buy for a rx-7 is a good investment

it quickly gets expensive to make alot of horsepower in NA form, individual throttles are great but I wouldnt call it cost effective.

money would be better spent boosting or just selling the car and getting one that is already turbocharged... or better yet, going in a savings account, or if you must take a risk at least take one that might have a positive return, like investing in stocks... buying expensive parts for an 80's japanese car is not wise.

By these statements, I cannot say I am very wise... as my car is NA, from 1987, has individual throttles, a haltech e6k, ported engine, coilovers, light wheels, and sticky rubber. Money I will never see again, totalling more than the cost of the cycle in my avatar, *ALOT* slower than the cycle in my avatar (04 R1 goes low 10's - high 9's), and when I sell the cycle in my avatar I will get all the money back. If I sell my FC, I won't even see half of what I spent on it. Think long and hard before you get carried away paying mazdatrix' rent.

Last edited by pengarufoo; 11-04-06 at 03:24 AM.
Old 11-04-06, 08:09 AM
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Originally Posted by pengarufoo
first of all, pretty much nothing you can buy for a rx-7 is a good investment

it quickly gets expensive to make alot of horsepower in NA form, individual throttles are great but I wouldnt call it cost effective.

money would be better spent boosting or just selling the car and getting one that is already turbocharged... or better yet, going in a savings account, or if you must take a risk at least take one that might have a positive return, like investing in stocks... buying expensive parts for an 80's japanese car is not wise.

By these statements, I cannot say I am very wise... as my car is NA, from 1987, has individual throttles, a haltech e6k, ported engine, coilovers, light wheels, and sticky rubber. Money I will never see again, totalling more than the cost of the cycle in my avatar, *ALOT* slower than the cycle in my avatar (04 R1 goes low 10's - high 9's), and when I sell the cycle in my avatar I will get all the money back. If I sell my FC, I won't even see half of what I spent on it. Think long and hard before you get carried away paying mazdatrix' rent.

This statement is true in a way but I bought my FC not as a investment. I bought my FC for a hobby, to modify my car and enjoy it in every possible way ( my car will die with me ). I love my FC and it has become a matter of pride!. To the originator of this post I say this, if you plan to keep your FC n/a and have a concrete and realistic goal by all means go for it. Understand though that the item you are asking about involves more than just a bolt on like everybody has stated. Make a plan and modify your car in steps. Learn and research as much as you can before you start buy things and once you know what you want stick with it. I have been buying parts for my car slowly but surely and now after a year of stockpiling everything I am putting the parts on my FC in steps. Anyway good luck with what ever you deside to do!

JP
Old 11-04-06, 09:00 AM
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your going to see more gains in switching to a full stand alone. the thing is, making an engine breathe correctly isnt as easy as you think. i believe that if you used this, you would need to have proper airflow so it wouldnt suck in debris and hot air. then you would need a new fuel system. all for what? around 200 whp with a stock 13b 6 port? nah.
Old 11-04-06, 02:01 PM
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Originally Posted by umi415
This statement is true in a way but I bought my FC not as a investment. I bought my FC for a hobby, to modify my car and enjoy it in every possible way ( my car will die with me ). I love my FC and it has become a matter of pride!. To the originator of this post I say this, if you plan to keep your FC n/a and have a concrete and realistic goal by all means go for it. Understand though that the item you are asking about involves more than just a bolt on like everybody has stated. Make a plan and modify your car in steps. Learn and research as much as you can before you start buy things and once you know what you want stick with it. I have been buying parts for my car slowly but surely and now after a year of stockpiling everything I am putting the parts on my FC in steps. Anyway good luck with what ever you deside to do!

JP

I see what you are saying but I think you need to realize anything you spend your money on is an investment.

Just making your NA FC fast with a standalone and individual throttles is a *bad* investment.

Simply labeling your acts as those done due to pride or a hobby does not eliminate the financial impact of what you are doing, I learned this the hard way.
Old 11-04-06, 07:04 PM
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Originally Posted by army88rx-7
Has anyone used this type of throttle body setup on there car, does it help, is it a good investment, and how much power could you hope to see. Also do you have to use some sort of emanage system

EFI Hardware IDA Throttle Body Kit - Suit Mazda 12A, 13B Rotary
$852.00AUD (inc GST)
$774.55AUD(ex GST)

here is the link to where i found the throttle body

http://www.tweakit.net/shop/index.php?cPath=27_176


Yes, you would need a standalone. Unless you built a plenum to use the AFM with you would have to run the car as speed density, which would require a standalone and tuning.

Its probably worth quite a few top end hp on even a stock port motor, but it would shine on a BP or aux BP motor. Which is why I plan on eventually putting that set up on my Aux BP in the future.

throttle response is supposed to be greatly improved. Like you touch the pedal, it does as you command, immediately. Im sure top end is significantly improved, and you can tune the set up for where you want to see the greatest improvement in the rom band based on the air horns you use.


BC
Old 11-04-06, 08:03 PM
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Originally Posted by pengarufoo
I see what you are saying but I think you need to realize anything you spend your money on is an investment.

Just making your NA FC fast with a standalone and individual throttles is a *bad* investment.

Simply labeling your acts as those done due to pride or a hobby does not eliminate the financial impact of what you are doing, I learned this the hard way.
So with that logic buying a new computer is a bad idea. You old computer can cruise the internet and send e-mails so why do you need a new one? Because you want to have fun and play good computer games.
Modding a car is not an investment, it is spending money on something that will make you happy.

That said, I don't think that the moeny involved in this is justifiable unless you are running at least a half or aux bridge motor. The stock intake is still fine even for a street ported motor, especially if you do the intake port mod listed in the archives.
Old 11-04-06, 08:14 PM
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Originally Posted by pengarufoo
first of all, pretty much nothing you can buy for a rx-7 is a good investment...

Think long and hard before you get carried away paying mazdatrix' rent.
Word. That's why I just fix stuff that breaks or needs to be fixed before it breaks.

There is some merit saying you're doing it as a hobby. A hobby is something that you enjoy doing that you are going to spend your time and money on.

That is a very cool looking throttle body, but I wouldn't say $700 cool.
Old 11-04-06, 08:24 PM
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Well, once you add in the haltech and IDA lower manifold, it comes out to 2600 ASD, or 2000 USD after shipping. Without the haltech its "only" 825 or so.


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