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Series I Aftermarket Performance Modifications Discussion of power adding modifications
View Poll Results: Which Intake
Rotary Extreme Ram Air (not released yet)
11
17.74%
Rotary Extreme Short Ram
24
38.71%
K&N Typhoon Intake
17
27.42%
Other brand
10
16.13%
Voters: 62. You may not vote on this poll

Rotary Extreme Intake Info

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Old 11-04-2003 | 04:11 AM
  #26  
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Thanks for the support.

Chuck Huang

Originally posted by Irish_in_a_RX8
Chuck, it would be great to see some shots of the filter if poss.....

Just for the record, I bought from Chuck before, and I am sure everything is as accurate as he states
Old 11-04-2003 | 04:13 AM
  #27  
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Rx-7 is a great car. I still have mine and I will never get rid of it. Right now I am putting on a full carbon fiber widebody kit. It will be in the magazines in a few months. Thanks for your support too.

Chuck Huang

Originally posted by PoMan Ferrari
I've been looking into an RX8 but with my RX7, I feel guilty if I buy an 8.

Anyway, Chuck's product is first rate. I've the cold air intake from him. They run $500 for my car so what you guys are getting is dirt cheap.

Very high quality stuff and bolt-in without cutting etc..
Old 11-04-2003 | 04:29 AM
  #28  
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There definitely will be cheaper alternatives out there without all the featuers that are included with our own intake system. You can cut corners here and there to lower the cost. Our product is never the cheapest one on the market. We want to offer the products that's designed to work with all the features that we can think of, not designed to be cheap and affordable.

Chuck Huang


Originally posted by Efini 8
the standard short ram intake is not $260... that is more than Cold Air intakes... short rams typically are under $200 USD
Old 11-04-2003 | 09:42 AM
  #29  
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Originally posted by Rotary Extreme
Right now I am just waiting for the filters to arrive. I have all the other parts ready to go for the short arm intake.

The filter is an oval shaped one with 3.5" flange, 7" tall, 7" wide and 4" thick.

The ram air one will be finished around Nov 21st. Photos will be posted after it's done.

Chuck Huang
Thanks for the info, Chuck. Couple of more questions for you, if I may.

1. Am I correct in assuming you will also be posting dyno results for the ram air CAI when it's done?
2. Can you please post a pic of the short-arm CAI without the RX-8's engine cover in place?

Thanks...
Old 11-04-2003 | 10:46 AM
  #30  
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One thing people might consider in this price even though i also think it is still a little expensive, is that the cost of the machined part on the tube and the cost of the what looks like mirrored stainless steel is NOT cheap. Yes they are just small parts but the cost of R&D is also NOT cheap. Granted they proabably do have some very good resources to get the material from and just might have their own machine shop and sheet metal break but it still is expensive to throw god knows how many guys on one project in a 2 month period with the high expectation of perfection. People want perfect and cheap. Thats not an easy accomplishment in the R&D world. Sure give them 2 years and their just might be some better resaults and a little less money but by that time the RX-8 will no longer be the got to have parts for car.
Old 11-04-2003 | 11:08 AM
  #31  
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1. I expect the dyno result to be the same because I can't duplicate the ram air effect on the dyno since the car is not moving. But when you are actually driving, you can expect anthoer 3-5 rwhp gain over the short arm intake depending on how fast you are driving.

2. Here is the photos




Chuck Huang

Originally posted by Omicron
Thanks for the info, Chuck. Couple of more questions for you, if I may.

1. Am I correct in assuming you will also be posting dyno results for the ram air CAI when it's done?
2. Can you please post a pic of the short-arm CAI without the RX-8's engine cover in place?

Thanks...
Old 11-04-2003 | 11:16 AM
  #32  
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Looks great, love the shielding! I noticed Chuck that the K & N Protype Filters are much bigger. I wonder is there really a difference..i.e. bigger filter, more power..?
Old 11-04-2003 | 11:17 AM
  #33  
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Thanks for the support. The polished top cover already costs $60 to be done. When you little things add up pretty quickly.

I wish I can sell the intake without the top cover and just knock down the price to $200 but then this setup will not be optimal. The top cover greatly minimizes hot air getting into the filter.

The back heat shield and the top cover make big difference on temperature reduction. Besies that, the polished cover looks super sexy inside the engine bay.

Chuck Huang



Originally posted by Jhouse
One thing people might consider in this price even though i also think it is still a little expensive, is that the cost of the machined part on the tube and the cost of the what looks like mirrored stainless steel is NOT cheap. Yes they are just small parts but the cost of R&D is also NOT cheap. Granted they proabably do have some very good resources to get the material from and just might have their own machine shop and sheet metal break but it still is expensive to throw god knows how many guys on one project in a 2 month period with the high expectation of perfection. People want perfect and cheap. Thats not an easy accomplishment in the R&D world. Sure give them 2 years and their just might be some better resaults and a little less money but by that time the RX-8 will no longer be the got to have parts for car.
Old 11-04-2003 | 11:25 AM
  #34  
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Even though the K&N prototype uses a bigger filter, it's not really going to make a difference. You only need up to a certain size.

Our V mount intake for the RX-7 uses two small K&N filters and we made 386rwhp on those. Those two filters added together are still not as big as the K&N filter I am using for this intake set up. If I am able to put the filter I am using for the RX-8 on the single turbo RX-7, I am pretty sure it will support more than 500 rwhp.

Another thing I don't like the K&N prototype is that they positioned the filter at the very front. The tip of the filter blocks the stock fresh cold air duct. I don't know how they are able to get any cold air. That's why I use a shorter pipe so there is room between the filter and the stock fresh cold air duct for the cold air to get in.

Here is a dynosheet of the 386 rwhp stock twin turbo rx7.



Chuck Huang

Originally posted by Irish_in_a_RX8
Looks great, love the shielding! I noticed Chuck that the K & N Protype Filters are much bigger. I wonder is there really a difference..i.e. bigger filter, more power..?

Last edited by Rotary Extreme; 11-04-2003 at 11:28 AM.
Old 11-04-2003 | 11:33 AM
  #35  
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Thanks for all the info Chuck!
Old 11-04-2003 | 11:54 AM
  #36  
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There is another thread on the K&N intake. It looks like their retail version does not come with any kind of heat shield. With the front fresh air duct blocked off and no heat shield, you can expect the engine to be sucking in all the hot air and lose horsepower.

Rotary engine runs very hot. You can do the test yourself. Drive your car for a while even just cruising at high speed. Park the car and immediately take off the top cover and see how hot it is. Be careful not to get burnt when you do this.

Colder air makes more power just based on thermodynamics. That's why a turbocharged car needs to use an intercooler to cool down the charged air in order to make more power and prevent detonation. Same concept here.

Chuck Huang
Old 11-04-2003 | 12:09 PM
  #37  
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Hi Chuck,

I'm not sure did you answer this question or not, but my question is why don't you use your first prototype? The one with longer piping, all the way to the lower front bumper. Isn't it suck colder air than the current prototype?

P.S. Your customer service is great. Super fast shipping. I ordered the clear marker from you guys, and received it in TWO business day.
Old 11-04-2003 | 12:28 PM
  #38  
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The first prototype was done wrong. It didn't gain power on the dyno. We are still working on another ram air intake that's similar to the first prototype with some changes and it will be done around Nov 21st.

Thanks for the support. We keep those clear sidemarkers in stock for fast shipping. We always have at least 30 pairs of those in stock. Customer satisfaction is our number 1 concern.

Chuck Huang

Originally posted by donald121
Hi Chuck,

I'm not sure did you answer this question or not, but my question is why don't you use your first prototype? The one with longer piping, all the way to the lower front bumper. Isn't it suck colder air than the current prototype?

P.S. Your customer service is great. Super fast shipping. I ordered the clear marker from you guys, and received it in TWO business day.
Old 11-04-2003 | 12:29 PM
  #39  
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Do you have to take off the front bumper assembly to install this intake? When will this thing be for sale? I'm very interested.
Old 11-04-2003 | 12:36 PM
  #40  
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For the short arm intake that's shown in this thread, you do not need to take off the front bumper to install. You can finish the install within 40 min at most. All the components are already done. The only things we are waiting are the filters which will be here within a week. Currently we have 10 sets of the components made. Our machine shop can produce 20-30 sets of components per week so the lead time is very short even if we run out the first 10 sets.

On the ram air intake which will be released around Nov 21st, you will need to take off the front bumper to install. It will take about 1 hour to 1 1/2 hours depending on how good your mechanical skill is.

Thank you.

Chuck Huang

Originally posted by Peakster
Do you have to take off the front bumper assembly to install this intake? When will this thing be for sale? I'm very interested.
Old 11-05-2003 | 09:43 AM
  #41  
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Somebody order this thing quick and post some results!
Old 11-05-2003 | 11:16 AM
  #42  
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Replace that accordian tube with a straight pipe
Old 11-05-2003 | 12:27 PM
  #43  
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Question

On your site you said that there is a 14 horsepower gain but the figures you post before and after 187 to 195 is only 9. What am I missing here to get 14 hp?

Thankx a lot...
Old 11-05-2003 | 12:49 PM
  #44  
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The 14 HP gain was at about 7200 RPM, not at the Max HP point.

Originally posted by davefzr
On your site you said that there is a 14 horsepower gain but the figures you post before and after 187 to 195 is only 9. What am I missing here to get 14 hp?

Thankx a lot...
Old 11-05-2003 | 06:54 PM
  #45  
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quote:
-------------------------------------------------------------
Replace that accordian tube with a straight pipe
-------------------------------------------------------------

I would think the accordian would help keep torque induced rattles and vibration down and make installation a no brainer for those of us with just three wrenches.
Old 11-05-2003 | 10:25 PM
  #46  
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Chuck,
got the sidemarkers 4 days ago. Thanks!
can't wait for CAI and your Urethane front bumper. So I guess that doesn't come painted. By the way do you have the headlight eyelids in stock right now?
Thanks
Old 11-05-2003 | 10:29 PM
  #47  
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Can a new intake really provide a 12hp increase? How much does an intake like this normally cost (ballpark)?
Old 11-06-2003 | 02:19 AM
  #48  
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ballpark 150
Old 11-06-2003 | 04:00 AM
  #49  
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no a new intake will not make 12 hp..at the most it will make half of that or a little bit more..depending on what other mods you have done to your engine..
Old 11-06-2003 | 07:22 AM
  #50  
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Originally posted by XDEEDUBBX
no a new intake will not make 12 hp..at the most it will make half of that or a little bit more..depending on what other mods you have done to your engine..
(Warning: stupid question coming)

Then why does K&N claim 12hp? If everyone knows it isn't true, aren't they setting themselves up for some trouble (false advertising, etc.)?

Mikeb, are you sure it's around $150? I did some poking around after I posted, and most of the K&N intake kits seem to be more like $250.

Still seems like a decent deal for 5-6hp increase...wonder how much it adds to engine noise though...


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