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-   -   Aftermarket intake manifolds and vaccume/boost sources (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/aftermarket-intake-manifolds-vaccume-boost-sources-272418/)

1987RX7guy 02-16-04 05:26 PM

Aftermarket intake manifolds and vaccume/boost sources
 
Hey guys long time no whore :D

I just bought an IDA intake setup for my TII and I want to know how all you guys with aftermarket manifolds and custom setups get vaccume sources for your fuel reg's and all the other things like wastegates and bovs. From the looks of it my manifolds aren't setup with nipples for vac lines. Is there a way to add them to it? I haven't gotten the parts in the mail as I just bought them off of ebay but from what I can tell the LIM is made of aluminum. This is all going to be run by a microtech also in case anyone wanted to know. :D


Santiago

nashman69g 02-16-04 05:34 PM

u can always weld on some bungs..or (gettto way) just drill a hole and use a grommet and stick a hose with some type of stiff adapter in the hole!

EDIT:
I did the a similar thing (getto way) on my TII...I was looking for a constant vac source so I jammed the stock 1way valve(the one that goes into the intake tube after the AFM) into the silicone connector and it workes just fine!!!

JasonL 02-16-04 05:36 PM

Yea, mabye drill some holes and insert some nipples and use jbweld to keep them in place?

1987RX7guy 02-16-04 06:17 PM

What about drilling and tapping for NPT(sp?) fittings?

Crusader_9x 02-16-04 06:27 PM

that would be my vote u can get some npt nipples at autozone. thats where i got the ones that i needed for my wastegate/blow off valve.

1987RX7guy 02-16-04 06:39 PM

http://www.aztechrotary.com/files/tii/ida.jpg http://www.aztechrotary.com/files/tii/ida2.jpg


Here are the pics of the intake I got.


Where is a good place to get a tap/die set? I have never even used them how do you do it?

Snrub 02-16-04 07:00 PM

I have no idea what you can do to solve your problem...

Question: What are you doing for an air filter?

1987RX7guy 02-16-04 08:10 PM

I have two options: Buy an aluminum plenum from tweakit or make my own.

NZConvertible 02-16-04 08:58 PM

Drill and tap the cast bosses on the inside of the manifold directly under the throttles, and install brass hose barbs. Do the same thing to the bigger boss on the outside of the manifold under the rear throttle for the brake booster line.

1987RX7guy 02-16-04 09:16 PM

Ah I should have thought of that :dunce: :D


Santiago

Now to get to making that plenum :D

2ndGen.rocket 02-16-04 10:24 PM


Originally posted by 1987RX7guy


Where is a good place to get a tap/die set? I have never even used them how do you do it?

Home Depot baby!

1987RX7guy 02-16-04 10:26 PM

I need an idiot's guid to tapping. lol I am a noob at everything! :p:

2ndGen.rocket 02-16-04 10:37 PM

I've only tapped and threaded about 3 holes in my life. (that didn't sound right). Anyways, its not really hard, pretty self explanitory.

White_FC 02-16-04 10:39 PM

Yeah.... You drill a hole... Lube it up... then insert the tapping device... Tighter the fit the better.

Hehe now that really didn't sound right.... ;)

1987RX7guy 02-16-04 10:56 PM

lol lube!

I am goinb to have to see what barbed nipples I can find and what kind of taps I can locate here. :) Thanks guys!

shiftnmadkwik 02-17-04 09:32 AM

tapping is easy, the set will come with a variety of taps, and the handle to screw them in with.. depending on what diameter/coursness of thread you are tapping, the instructions will indicate the right size drill bit to use.. but yea use those bosses, theyre probably designed for nitrous nozzles but vacuum nipples will work too. you can always use a few t's if you dont wanna fill your manifold with holes.. also make sure you clean it out good after the drilling.. brake parts cleaner works nice.

wpgrexx 02-17-04 09:53 AM

always remember to drill a smaller hole than the tap, not the same size. Oiling helps make a cleaner thread, and bring the tool back out every turn or so to empty the shavings. I would probably practice a couple times on similar surfaces as to keep that intake pretty.

1987RX7guy 02-17-04 11:31 AM

Well the LIM for the setup is only 179+ shipping so if I completly destroy it it isn't tooo much money lost. I may practice on my spare S4 UIM :D

Bio-Weapon 02-17-04 11:46 AM

Yea you want to turn the tap 1/4 to 1/2 a turn, then back off a bit, then another 1/4 or 1/2 turn. Its kinda tedious but its really easy. As long as you take it slow. You want to back out and get the shavings out too, as stated above, they could wreck the threads. Just dont put it in, and turn it as fast as possible to get through it, not a good idea at all.

Bebesito21 02-17-04 12:07 PM

im jealous....thats a BEAUTIFUL intake. how much did you end up paying?

1987RX7guy 02-17-04 12:13 PM

575 shipped. I opted for the "buy it now" on ebay. I didn't want to deal with opposing bidders messing with my shit. :D

1987RX7guy 02-17-04 01:18 PM

My bad my math sucks ass. I payed 565 shipped. It was 550 "buy it now" and 15 for shipping. For some reason I added that up to 575. :p:


In any case thats way better than buying from TWM or Tweakit. :D

EDIT: I added the parts up from www.tweakit.net and it totals up to 812+ shipping. And mine are comming with a custom TPS setup for EMS's so thats a little added value.

:D

Bebesito21 02-17-04 02:32 PM

I want to get that intake manifold setup too. I want it with the AN fittings on the fuel rail and etc. Let us know how it feels on the car and your hp gains....

NZConvertible 02-17-04 02:51 PM

He's not doing it for hp, he's doing it for the bling-bling... ;)

Bio-Weapon 02-17-04 03:38 PM

1987Rx7Guy doing something for looks? No way... that would be rice. Although with that blue, i dunno. :)

1987RX7guy 02-17-04 03:50 PM


Originally posted by NZConvertible
He's not doing it for hp, he's doing it for the bling-bling... ;)
All of a sudden you know what my the purpose behind my actions is? Damn give the man a cigar he is reading minds now.

1987RX7guy 02-17-04 04:09 PM


Originally posted by Bebesito21
I want to get that intake manifold setup too. I want it with the AN fittings on the fuel rail and etc. Let us know how it feels on the car and your hp gains....
I'll make sure to get back to everyone with a review and what not. I don't think I am going to use AN fittings because Reted told me that the stock diamiter fuel hose supports somewhere in the rance og 500hp. Which is within my goal so I don't see the need to buy the extra rails and what not.


Santiago


Oh and the anodised (sp?) horn/stack peices will not be used because the plenum that I plan to use replaces them. If I wanted bling bling i'd go buy an SUV and get my teeth cap'd in gold and silver. ;)

NZConvertible 02-17-04 04:11 PM

IMO that manifold is a waste of money considering the power target you've previously stated. That money would've bought you the turbo you need to reach that goal (with change probably) while still using the stock manifold. I've read your previous posts on this manifold, so no mind reading is required. ;)

1987RX7guy 02-17-04 04:16 PM

What hybrid turbo gets you 400hp? I haven't seen that one yet. The highest one that I saw was 350hp or so. ANd regardless of what you've read you are only assuming I did it for "bling" but you have nowhere near the right idea of why I clicked the buy button on the auction.

NZConvertible 02-17-04 04:32 PM

Who mentioned a hybrid?

And you don't need to get all testy. I know you're not doing this just for looks; I'm just teasing you a bit. But I'm pretty sure your reasons aren't completely engineering-based either. If my thinking is so far off base, why don't you enlighten me? :D

1987RX7guy 02-17-04 04:35 PM

Well I wasn't aware of any turbo that bolted to the stock manifold so I "assumed" <dumbass mistake :p: hint hint ;) That you meant a hybrid turbo.

But you got my attention what turbo are you refering to?

Santiago

PS- The secondary reason I bought the intake setup is because I like to be different. :) Most have the stock intake so I wanted to set myself apart. If you want to call that "bling" then you got me. :) And I get all testy because I am like that. ;)

carx7 02-17-04 04:37 PM


Originally posted by 1987RX7guy
What hybrid turbo gets you 400hp? I haven't seen that one yet. The highest one that I saw was 350hp or so. ANd regardless of what you've read you are only assuming I did it for "bling" but you have nowhere near the right idea of why I clicked the buy button on the auction.
I'll bite and ask why buy it then... I came to the post to ask that question anyway :)

Not trying to be confrontational, but NZ pretty much said what I was going to... can't see the need for this power level that you've previously stated... unless you've changed your mind.

That and the fact that most all the companies that I've spoken to about this sort of design actually talked me out of it saying that it would hamper low end and that the big gains on the top end were only see at high (like 30psi) boost. I tend to listen when shop tells me not to buy their product.

That's cool if you wanted it for looks... just curious.

-Chris

NZConvertible 02-17-04 04:44 PM


Originally posted by 1987RX7guy
Well I wasn't aware of any turbo that bolted to the stock manifold so I "assumed" <dumbass mistake :p: hint hint ;) That you meant a hybrid turbo.
I was talking about the stock intake manifold, that being the thread topic and all. ;)

But you got my attention what turbo are you refering to?
I wasn't referring to one turbo in particular, just that you'll need to spend another big bunch of money to get a turbo capable of supporting 400hp. A big turbo will be necessary to reach that goal, but a different intake manifold will not.

The secondary reason I bought the intake setup is because I like to be different.
That's what people say about superchargers too... :rolleyes:


Originally posted by carx7
...most all the companies that I've spoken to about this sort of design actually talked me out of it saying that it would hamper low end and that the big gains on the top end were only see at high (like 30psi) boost.
Exactly.

Digi7ech 02-17-04 04:44 PM

NM saw your post above about the velocity stack. :)

So are you going to try and get a nice clean flwoing one made? some type of y splitting plenum?or more like the stock fatty?

carx7 02-17-04 04:47 PM

haha, we all posted at the same time!

I have may answer I think... guess you'll have to let us know what you think.

I've been contemplating something like this for a while... but I'll want to do dyno comparison with my current setup... and I just don't have teh $$$'s right now.

1987RX7guy 02-17-04 04:48 PM

Like I already said my secondary reason is for individuality and to separate my car from others like it. But the main reason I wanted it was to see for myself what its "cracked up to be" I don't like just accepting things. Thats why I tested my stock intake. Thats why I logged the temps for my CAI. Thats why! :) I like finding out for myself. This car, My TII, is not about "worth it" or "how much" or words like "budget". I set a goal and I will reach it eventually. I plan to learn on the way. After I finish with my goal I may set a higher one who knows I might want to take on Soul Assasin's car(his HP anyways) It could go in any direction. The only limits to my project is the rate at which I can put more money and parts into the build and how well I can learn how to do things like tunning and other high level tasks which I have never done before.


I do not know if that made any sense or if thats a good enough reason or excuse if you will for buying this intake but the thing is payed for. Even if I made the wrong choice I have to live with it for now. But I hope I didn't make the wrong choice.


Santiago


carx7 btw your car is killer! :)

1987RX7guy 02-17-04 05:05 PM


Originally posted by NZConvertible
I was talking about the stock intake manifold, that being the thread topic and all. ;)

I wasn't referring to one turbo in particular, just that you'll need to spend another big bunch of money to get a turbo capable of supporting 400hp. A big turbo will be necessary to reach that goal, but a different intake manifold will not.


That's what people say about superchargers too... :rolleyes:

Exactly.

I know and have already picked the turbo, manifold, exhaust, wastegate, and IC I will need for my power goal. Who said I didn't know I needed a big turbo? And, for example, removing my catalitic converter isn't needed to increase horsepower but I did it anyways. Why? because it will make power gains easier to attain. Just like the 80mm exhaust I chose and I beleive this intake will do the same. It will facilitate power gains. I already said it isn't about "worth it" or "hp per dollar" That isn't one of my main concerns.


Santiago

White_FC 02-17-04 05:11 PM

Just curious, are you leaving the motor stock internally? (ie, port timming)

1987RX7guy 02-17-04 05:14 PM

BDC is incharge of that department. I will have him do the largest street port he can and I will be doing the rebuild myself. < one of the things I have to learn. :)

A lot of people tell me to go with a bridge but I seriously don't want to tackle that kind of tunning.

White_FC 02-17-04 05:17 PM


Originally posted by 1987RX7guy
BDC is incharge of that department. I will have him do the largest street port he can and I will be doing the rebuild myself. < one of the things I have to learn. :)

A lot of people tell me to go with a bridge but I seriously don't want to tackle that kind of tunning.

Fair enough... the tuning of a BP will be just as difficult as any other port... :)

I'd bet you'd see more gains using a brideport.. But if a street port is your thang then thats cool.

Aaron Cake 02-17-04 05:43 PM

You have bought that intake, have dreams of 400 RWHP, yet can't install a vacuum nipple? Uh huh...

(I actually had a nice post, but the forum lagged and ruined it...hence the bad mood)

carx7 02-17-04 05:53 PM


Originally posted by 1987RX7guy

I do not know if that made any sense or if thats a good enough reason or excuse if you will for buying this intake but the thing is payed for. Even if I made the wrong choice I have to live with it for now. But I hope I didn't make the wrong choice.


Santiago


carx7 btw your car is killer! :)

Eh, I wouldn't say you made a mistake. Get what you want. As long as you understand what you're buying and you're buying things for the right reasons.

That's exactly why I didn't put an FD manifold on my car and kept the stock S5 (till I get an intake manifold that matches my exhaust manifold anway ;) ) There's a lot of hype but no proof (meaning dyno sheet not hear-say) of extra power.

Anyway, good luck with the car. Projects are always fun.

-Chris

Thanks for the compliment. :D

1987RX7guy 02-17-04 07:14 PM


Originally posted by Aaron Cake
You have bought that intake, have dreams of 400 RWHP, yet can't install a vacuum nipple? Uh huh...

(I actually had a nice post, but the forum lagged and ruined it...hence the bad mood)


Some people that own Lambo's and Ferraris don't know how to change their oil. Whats your point? Atleast I asked about how to achieve what I KNOW is needed for the car to work properly. I never had to tap anything before so I didn't bother learning something that was not needed. Just like someone that wants to be a diplomat needs to know different languages but that doesn't mean the guy or girl is born with the knowledge and skill to accomplish his/her task.


Santiago

NZConvertible 02-17-04 07:21 PM


Originally posted by 1987RX7guy
...the main reason I wanted it was to see for myself what its "cracked up to be" I don't like just accepting things. Thats why I tested my stock intake. Thats why I logged the temps for my CAI. Thats why!
So are you going to do back-to-back testing of the stock and aftermarket manifold/TB/plenum set-ups? I've never seen that done, and I think the potential improvement is not as great as everyone seems to think. For example do the benefits of the shorter intake runners outweigh the fact that the TB is much smaller?

Who said I didn't know I needed a big turbo?
Not me. Read it again. I was simply pointing out that for your stated power goal, spending money on the big turbo was necessary, but spending money on the intake was not.

It will facilitate power gains.
It will facilitate peak power gains. Elsewhere in the rev range will probably be a different story.

I don't think you've made a mistake (it will work fine I'm sure), I just think you've made an unwise economic decision. For your initial power goal, the cost and downsides outweigh the benefits. Those long runners on the stock manifold are much better for low-end torque, and with a big turbo on a little engine in a (relatively) heavy street-driven car, that's important. I wouldn't want to sacrifice that until the stock manifold actually causes a significant restriction.

And I'd love to know where a 20yo student gets the money for all this. When I was at uni slapping a Weber on my '78 Corolla was a financial stretch... ;)

White_FC 02-17-04 07:45 PM

I really do think that you'd need some pretty agressive porting to take full advantage of a shoter manifold like this... A(agressive) brideported N/A motor would definatly see gains from using a setup like this as compared to a stocker manifold (either N/A or a Turbo manifold), that is for sure, however I'm not so sure about turbo motors.. don't have enough experience with these beats yet..

Hmm... but seeing pics of dual throat manifold like that make me dream about making a telescopic manifold... (read: r26b style..)
Pitty you couldn't really make one that handled boost easily.. so not very relevant to this discussion i guess. :)


ps- Aaron Cake, when are we going to see a progress report on your brideport build up? I'm quite interested.. :)

White_FC 02-17-04 07:53 PM

Arrghhh double fricken post, stupid forum server.. grr...
:o:

Snrub 02-17-04 10:08 PM

Jesus, $565! $180 total I can see doing it for experimentation, differentiation, looks, whatever, but not for $565. Don't get me wrong it's really cool.

I think Mr. Cake's point was not about actually having a car with 400hp but your ability to make your car have 400hp.

1987RX7guy 02-17-04 10:18 PM

[
And I'd love to know where a 20yo student gets the money for all this. When I was at uni slapping a Weber on my '78 Corolla was a financial stretch... ;) [/B][/QUOTE]


I'm 19 I turn 20 in July. :p: :D


And where do I get the money for it? Well I have a job don't I? I also pay taxes and get grants/scholarships for my studies. Just because I act stupid on the forum doesn't mean I am low on brain power. ;)

1987RX7guy 02-17-04 10:32 PM


Originally posted by Snrub
Jesus, $565! $180 total I can see doing it for experimentation, differentiation, looks, whatever, but not for $565. Don't get me wrong it's really cool.

I think Mr. Cake's point was not about actually having a car with 400hp but your ability to make your car have 400hp.

With the stock parts that I sold off of the TII It comes out even. So technically I didn't spend anything on it. :D

Its all about credit and debt lol!

And I could care less what people beleive about me. I know I act stupid and I am an asshole all the time without warrant. But that doesn't mean I am not able to build a car. I don't need an engineering degree nor do I need to know everything that mr. cake knows or whoever. If I really wanted to get 400hp I have the list and I could have been half way there based on other people's setups. But I want to try out my own things I don't need to be put down by mr. canada. I just think he has a beef with me but I really could care less. Anyhow they are payed for all I have to do is wait for mr. postman to deliver them and I can start my handy work at taping for those vac nipples. Those that helped me thanks! I hope I can help you all in return. Those that didn't well I really don't want to start anything because I am at a disadvantage.


Santiago

cprx7 02-18-04 11:56 AM


Originally posted by 1987RX7guy
....I act stupid and I am an asshole all the time without warrant. But that doesn't mean I am not able to build a car......
Santiago

No, but it means people are going to bash you and probably not provide you with help in your times of need. You in the admittance stage right now just unmanageability and acceptance to go. You making progress at least :)


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