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RDX Down Pipe and CAT delete!!

 
Old 05-11-2011, 11:28 AM
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RDX Down Pipe and CAT delete!!

Finally in the making for the RDX is a down pipe that will eliminate the primary catalyic convertor and thusly increasing the power output of the engine!
The pipe will be manufactured by Jason Alper motorsports out of Las Vegas under the direction of fstcrvs here on the forum. Production, fitment and testing has begun with a projected completion time of aprox. 3 weeks from this posting.
Don (fstcrvs) will be making updates as the project progresses.

Originally Posted by fstcrvs View Post
Thanks guys to all that have contacted me.I am picking up flanges from laser jet cutter today.I could not find anyone building this pipe.So i know some great fabricators here in vegas due to are huge sand buggy groups.The pipe will be sold by me for the first 5 .After that the will be sold at jason alper motorsports.Jason makes custom sand buggys and brackets for ls1.We will be showing all parts the jig the welding the install.Now guys heres the deal because we make each one at a time if you want a extra o2 bung or changes we can do that also.And if any one wants to know more about me or the pipe call 7022371184
Originally Posted by fstcrvs View Post
The price will be set by end of week.Guys i built it for me.So all parts and work will be first class.Thanks again don Also guys if i find easy ways to do instal or extra goodies at the same time i will let you know.I am not selling anything else yet i will let the market leed us.We can build almost anything you need.Ok that out of the way.I am installing hondta intake gasket at this time it is way easy and if you see the stock one you can see why the hondata is so good.This job can be done with out disconecting any lines or fuel hookup this is very easy for power return.I will asy ti again guys if you mread pangs post and mine.This down pipe does not come off easy at all and if you have high milage it could be hrder.I am looking for help here any one know how to get back nut off easy on turbo side of down pipe? I was going to plasma cut mine off but way to much heat that close to alumminum block.Well i will post pics and events we will enter.Thanks don
I guess it could be called the DDP {don's down pipe}

Last edited by wspy; 05-11-2011 at 11:34 AM.
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Old 05-11-2011, 11:41 AM
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down pipe

Thanks mark . I love the ddp.
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Old 05-11-2011, 11:42 AM
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down pipe

Sorry guys i will get spell check working.
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Old 05-11-2011, 01:51 PM
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Can we merge some of these threads, or start one when a vendor actually offers this product.
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Old 05-11-2011, 02:59 PM
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down pipe

I picked up flanges from vegas water jet and they look great.The bottom flange of down tube will bolt to stock second cat flange with gasket.As this will help if someone only wants one or the other.The (N A G ) factor is very high here oh that would be my girlfriend not to keen on new rdx sittring for a month to get this done.So any one who has had to put up with this will understand why i need to get done soon.Mine or the first from may be done this weekend.Thanks don
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Old 05-11-2011, 04:26 PM
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Last edited by wspy; 05-11-2011 at 04:28 PM.
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Old 05-11-2011, 06:13 PM
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down pipe

The down pipe will be able to be seen at www.alpermotorsports.com as work starts we will post pics here and there.Thaanks don
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Old 05-11-2011, 07:00 PM
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Originally Posted by fstcrvs View Post
The down pipe will be able to be seen at www.alpermotorsports.com as work starts we will post pics here and there.Thaanks don
Don - is that your company that you work for or just having them make a custom downpipe for your RDX?
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Old 05-11-2011, 07:45 PM
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down pipe

rdxplus is my company.Jason is the fab guy .I will be helping on all of the build for pipes.The reason i am selling at his site he is set up to do sales from his site it is just easier.Jason and i both have other jobs .This is are fun time we do this because no one else makes these parts if you look at alper motorsports.com you will see he makes all parts on his site.I have been racing for over 30 years making parts nobody makes is away of life for us Most of the time we make it because what you can buy is not as good as we can make or the ones we buy break.So if you cant buy it or it wont last build it yourself. I bought my rdx 2 months ago and started looking for the parts right away.I have been working on this for 3 weeks getting all ready. Now you see why these pipes will get done my car does not run without its exhaust.Again will post all pics here or at www.alpermotorsports.com.Hope this helps.Thanks don
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Old 05-11-2011, 08:17 PM
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Any options with a hi flow cat for the downpipe?, better than no cat if you want to keep the stink down.
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Old 05-12-2011, 10:26 AM
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AFAIK there will be no such option!
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Old 05-16-2011, 09:13 PM
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Down pipe

The parts will all be in by wendsday hope to have first one done by friday.I will begin test this weekend.I will post pictures on this link when fabrication begins Thanks don.
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Old 05-17-2011, 07:59 AM
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down pipe

I also added hondata heat shield at this time .I will post pics of this mod also.This upgrade is very easy at time of pipe install as intercooler is all ready off.All test will be done with down pipe second cat delete and hondata heat shield.I do not like doing more than one mod at a time as it gets to hard to find performance gain from single part or to look for problems.So as painfull as it may be for girlfriend.I will add hondata chip mod and air cleaner cold air box mod later after first testing.This will let me track gains a lot better. Thanks don.
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Old 05-17-2011, 06:43 PM
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I've been away from this site for a while. These are being made here, in Vegas??? Cool!
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Old 05-17-2011, 06:49 PM
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down pipe

Why yes sir right here in lost wages.You can stop buy and see them made if you want.And i do plan on running it in the silver state.Thanks don
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Old 05-17-2011, 11:23 PM
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Originally Posted by Joe Las Vegas View Post
Any options with a hi flow cat for the downpipe?, better than no cat if you want to keep the stink down.
And how does this work with our OBDII smog test here in NV? On my other car, the readiness monitors on the cats needs to be on or it will fail OBDII smog. On our RDX, I assume removing the primary cat will produce a CEL?
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Old 05-18-2011, 07:47 AM
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down pipe

Well sin city i guess we will find out in a couple of days after i get it in and check it.I will go have it smog checked. Also can any one tell me why azzies horsepower numbers after this mod were so much differnt than churchs or pangs?I am talking about the before and after differnce.I understand the differnt dynos what i did not under stand was the smaller increase on azzies car than the other 2.Thanks don
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Old 05-18-2011, 10:19 AM
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Originally Posted by fstcrvs View Post
Well sin city i guess we will find out in a couple of days after i get it in and check it.I will go have it smog checked. Also can any one tell me why azzies horsepower numbers after this mod were so much differnt than churchs or pangs?I am talking about the before and after differnce.I understand the differnt dynos what i did not under stand was the smaller increase on azzies car than the other 2.Thanks don

AZZIES

https://acurazine.com/forums/1g-rdx-performance-parts-modifications-162/custom-3-catless-downpipe-midpipe-pics-dyno-733627/

Pangs

https://acurazine.com/forums/1g-rdx-performance-parts-modifications-162/built-3-downpipe-cat-deletes-682724/

AZZIES is a full pipe down to the exhaust with full deletes of both cats.. Pangs is just the first section delete.. (judging by pictures)

both are 3" though im guessing a 2.5 all the way will help with the noise and still be good for the HP increase IMO

side thought.. how much more would it be to do in titanium to save on weight? get the best of both worlds.. lightened and HP increase
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Old 05-18-2011, 10:36 AM
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Mr Church doesn't use the typical dynojet dynamometer he uses a dynapack:
http://www.dynapack.com/
which bolts to the wheel hubs, theoretically its better, gives higher readings than rollers, and a firepit for debate as rollers are typical/"the" standard.

Which reminds me, Chủrch Automotive, 2 days before atlp dp came along and announced dp plans and before you came along I was talking to church's "on-the-side" fabricator to do a 2 off, I was gonna pay 1/2 for someones dp to get it done, thanks again Don!

Last edited by Kaze66218; 05-18-2011 at 10:46 AM. Reason: Nagging baby maker
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Old 05-18-2011, 12:52 PM
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Pang had 36 hp and auzzie only saw a increase of 20hp the differnce in the way dynos measure is usually not that far off.imho
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Old 05-18-2011, 09:49 PM
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Well it actually there is a big difference when using a roller dyno to a hub mounted dyno . Atlp dyno there stock rdx at 179 hp and Chruch dyno at 210 hp a 31 horsepower difference .
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Old 05-18-2011, 10:25 PM
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Your variable may be fuel.!? Had a lot of ether in the gasoline in Europe but ether helps with cold weather starting. Auzzie is in Ukraine right? My guess that it's the fuel
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Old 05-20-2011, 08:34 PM
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All parts are in jig is done.First pipe done saturday night .I will try and post pics on sunday. And get my car done and sweetie of my ass.I guess i cant bitch to much its her car.Thanks don
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Old 05-21-2011, 10:59 AM
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The difference in gains would probably be from the fact that Pang was using his/a stock ECU while Azzie's was on the Hondata.
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Old 05-21-2011, 11:09 AM
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Don,

Originally Posted by PANG_CO View Post
Spark plug foulers were use in addition to the extended o2 bung. The foulers by themselves aren't enough with how upstream the 2nd o2 is on the downpipe.
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Old 05-21-2011, 04:02 PM
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down pipe

Update first pipe done in jig.Second pipe will be done in a few hours.Pics posted later tonight.Jig turned out great Jasons work is awesome .Cant wait for mine hope to be on the road tommarow.Finished install on hondata heat sheid.Thanks wspy will make sure to get o2 bung set far enough out. I guess it will be trial and set cel till i get it right .Thanks don

Last edited by fstcrvs; 05-21-2011 at 04:06 PM.
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Old 05-21-2011, 06:50 PM
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nice.. i think ill be one of your first few customers. im also in vegas so this will be a nice pick up. any word on how much the setup will be?
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Old 05-22-2011, 10:53 PM
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We had to make a few adjustments on the pipes better for you guys damn you guys allready get upgrades.I did not have time for pics all will be posted tomorrow.AND YES MINE IS INSTALLED just have few things to finish running tomorrow.I will post tomorrow. Thanks, Don
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Old 05-23-2011, 03:20 AM
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when will we be able to order them? and when i do install it do i have to get the hondata retuned because i have hondata and typhoon.. i called up AMS performance in chicago and they said they can tune hondata
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Old 05-23-2011, 08:13 AM
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They are done

Ok guys as I said we are making improvments in fit and function. As we are going into production of these we need to make them better (easier and less time consuming to build and install). I have many pics but having trouble compressing pics to load. Some details: this pipe is a true 3 inch pipe: no neck downs. Two smooth bends/curves and one straight pipe which means only three welded pieces: no extra angles, welds, pieces .The pipe is 3 inches at turbo stays 3 inch all the way to stock exhaust. Guys our second cat delete is so open you can see end to end looking through the pipe. These pipes are 3 inches everywhere. The bends are very smooth as is overall look. We will be adding many options such as high flow second cat. For you guys with 3 inch cat back we can do 3 inch all the way out of second cat or 2.5 inch for stock hook up. The fit is awesome, the work is fantastic. I believe Jason has come up with a better design than most of the others I have seen. Ok still working on prices as the first took so long to work out minor design details. We are trying to cut production time down and build a better pipe. So give me a day or two to set prices. And yes WISPY gets first pipe out and he can tell you how they look. Thanks Don.
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Old 05-23-2011, 08:39 AM
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Sorry mark wspy Not wispy no i in team.And kaze number 2.Thanks don

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Old 05-23-2011, 02:24 PM
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Originally Posted by RDXturbo07 View Post
when will we be able to order them? and when i do install it do i have to get the hondata retuned because i have hondata and typhoon.. i called up AMS performance in chicago and they said they can tune hondata
Ok, lets get something straight here; The re-flash for the RDX by Hondata is not 're-tunable' by anyone other than the folks at Hondata. That being said, they have already stated that they are not interested in offering a 'special' tune for other aftermarket parts (other than what was used at the time or the original flash tune)! Pang_Co had approached them on a flash for his DP and they refused!
AMS may have been referring to one of Hondatas other user tunable systems!
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Old 05-23-2011, 10:20 PM
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It is done .The car runs great .The girlfriend took the first drive.When she returned she said the little turbo gauge did not move.She thought it was broke.The turbo spool is so smooth it takes no power to start moving. This is a great mod.And no cel.We are going to be making a few changes to ease instalation.All should be ready in a few days. Thanks don

Last edited by fstcrvs; 05-23-2011 at 10:22 PM.
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Old 05-23-2011, 10:46 PM
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Good news - pictures would be great! ~
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Old 05-24-2011, 08:04 AM
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Guys i know you want pictures .My girlfriend snaped about 75 pics.The trouble is she used way to high resolution and i cant compress them enough to send.As mine is now on i will take new loadable pics when second pipe is done.This will be ok as new pipes have a few changes.The new pipes look cleaner and easier to install . I have been building race cars for over 40 years and this is one of the best upgrades i have ever seen. Now on to hondata and air box in the next few weeks .Girlfriend says she wants to drive the car for a while damn kill joy.Have a great day. Thanks don

Last edited by fstcrvs; 05-24-2011 at 08:11 AM.
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Old 05-24-2011, 08:52 AM
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Originally Posted by fstcrvs View Post
Guys i know you want pictures .My girlfriend snaped about 75 pics.The trouble is she used way to high resolution and i cant compress them enough to send.As mine is now on i will take new loadable pics when second pipe is done.This will be ok as new pipes have a few changes.The new pipes look cleaner and easier to install . I have been building race cars for over 40 years and this is one of the best upgrades i have ever seen. Now on to hondata and air box in the next few weeks .Girlfriend says she wants to drive the car for a while damn kill joy.Have a great day. Thanks don
Try - http://www.picresize.com/ or http://www.picresize.com/
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Old 05-24-2011, 08:55 AM
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Thank you jcrdx11 .This is why i love this site.I will try this out.
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Old 05-24-2011, 09:23 AM
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jcrdx11 I think i can email you a few pics if you want to post your email.Or 7022371184 or send me a email [email protected] and i can attach.Thanks don
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Old 05-24-2011, 09:39 AM
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wow maybe i am realy going to make them.I will post more later .Thanks don

Last edited by fstcrvs; 05-24-2011 at 09:46 AM.
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Old 05-24-2011, 10:05 AM
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Hey wspy what do you think?
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