Honda Prelude All Model Preludes

obx intake manifold...

Thread Tools
 
Search this Thread
 
Old Jul 14, 2004 | 11:31 PM
  #1  
flip1199's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Mar 2002
Posts: 3,818
Likes: 0
From: sacramento, ca, usa
Default obx intake manifold...

yes i know obx doesn't make the best of products but i'd thought i'd ask anyways. Has anybody had any experience with this intake mani? anyone know the performance benefits on a turbo application?

Reply
Old Jul 15, 2004 | 01:55 PM
  #2  
flip1199's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Mar 2002
Posts: 3,818
Likes: 0
From: sacramento, ca, usa
Default Re: obx intake manifold... (flip1199)

anyone???
Reply
Old Jul 15, 2004 | 02:59 PM
  #3  
Daemione's Avatar
Member
 
Joined: Jun 2001
Posts: 1,395
Likes: 0
From: Norwalk, CT
Default Re: obx intake manifold... (flip1199)

Hard to say. I've never heard of anyone using one - there's an H22 application? How much? Any more information on it? Runner lengths & diameters? Plenum volume? Any vacuum fittings? How about mounting the IACV? Idle port? Throttle cable stay?

From past experience, getting any details on OBX products is like pulling teeth from a rhinocerous.
Reply
Old Jul 15, 2004 | 04:43 PM
  #4  
Rick Solis's Avatar
Junior Member
 
Joined: Mar 2004
Posts: 921
Likes: 0
From: San Diego, CA
Default Re: obx intake manifold... (flip1199)

OBX has been trying to make a better name for themselves of late... Theyve been basicly taking all the top products out there (skunk2, Kaaz, etc) and replicating them... Like with this intake manifold for isntance, its an exact copy of the new Venom IM...

THe design is pretty basic, its a large tube with a flat plenum floor... Large plenum volume and short runners... It will work ok on HUGE (2.4+) high reving NA H series motors but was more specificly designed for forced induction.

If you have a mildly built NA (2.2 - 2.3) aplication, this IM is a no no...
Reply
Old Jul 15, 2004 | 07:10 PM
  #5  
Daboi630's Avatar
 
Joined: Jun 2003
Posts: 952
Likes: 0
From: Houston, TX, 77082
Default

Joel has OBX racing seats
Reply
Old Jul 15, 2004 | 07:11 PM
  #6  
Kal's Avatar
Kal
 
Joined: Oct 2002
Posts: 3,173
Likes: 1
From: Sunny, FL
Default Re: obx intake manifold... (flip1199)

this thread is quite interesting. Someone has to be the guinea pig and buy it...
Reply
Old Jul 15, 2004 | 10:02 PM
  #7  
flip1199's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Mar 2002
Posts: 3,818
Likes: 0
From: sacramento, ca, usa
Default Re: obx intake manifold... (Kal)

there on ebay for 175
Reply
Old Jul 16, 2004 | 04:20 PM
  #8  
flip1199's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Mar 2002
Posts: 3,818
Likes: 0
From: sacramento, ca, usa
Default Re: obx intake manifold... (flip1199)

anybody think it's worth the 175?
Reply
Old Jul 16, 2004 | 06:31 PM
  #9  
dawalude's Avatar
Honda-Tech Member
 
Joined: Mar 2003
Posts: 907
Likes: 0
From: Anaheim, CA
Default Re: obx intake manifold... (Daemione)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Daemione &raquo;</TD></TR><TR><TD CLASS="quote">Hard to say. I've never heard of anyone using one - there's an H22 application? How much? </TD></TR></TABLE>

it is only for the h23's. no h22 application "retails for over $400" but its $175 looks nice and shiny tho
Reply
Old Oct 17, 2004 | 09:22 PM
  #10  
Alstare's Avatar
 
Joined: Jan 2002
Posts: 665
Likes: 0
From: Windsor, Ontario, Canada
Default Re: obx intake manifold... (dawalude)

They just realesed the H22 ones...

I jkust bouht one, I'll be the guinee pig.

I'm not a big OBX fan/supporter but for this application I don't forsee any major difference from simular ones like venom.

And for 175$ you can't go wrong. Especilyl for us neglected h22 folk..

My ported out 4 runner h22 mani has been working fine so this should make a good compairison.

I'll make a thread as soon as I get it and try it out...
Reply
Old Oct 17, 2004 | 09:36 PM
  #11  
ChrisRicketts's Avatar
Member
 
Joined: Apr 2004
Posts: 1,457
Likes: 0
From: Natchitoches, LA, USA
Default Re: obx intake manifold... (Alstare)

i'd be interested in hearing the results. i'd pimp it, as long as no one else will ever know that's it's obx. does it say obx anywhere on it?
Reply
Old Oct 18, 2004 | 06:31 AM
  #12  
Silverpike's Avatar
Junior Member
 
Joined: Jun 2002
Posts: 199
Likes: 0
From: San Jose, CA, USA
Default Re: obx intake manifold... (Alstare)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Alstare &raquo;</TD></TR><TR><TD CLASS="quote">They just realesed the H22 ones...

I jkust bouht one, I'll be the guinee pig.

I'm not a big OBX fan/supporter but for this application I don't forsee any major difference from simular ones like venom.

And for 175$ you can't go wrong. Especilyl for us neglected h22 folk..

My ported out 4 runner h22 mani has been working fine so this should make a good compairison.

I'll make a thread as soon as I get it and try it out... </TD></TR></TABLE>
Hell yeah Brian, that is a comparison I'd really like to see.

Do you have a link describing your setup? Like PSI and turbo size information?
Reply
Old Oct 18, 2004 | 07:34 AM
  #13  
SuperSlow's Avatar
Honda-Tech Member
 
Joined: Nov 2003
Posts: 3,548
Likes: 1
From: NORCAL, USA
Default Re: obx intake manifold... (Silverpike)

Just for reference recently..


https://honda-tech.com/zerothread?id=1005259
Reply
Old Oct 18, 2004 | 11:50 AM
  #14  
Alstare's Avatar
 
Joined: Jan 2002
Posts: 665
Likes: 0
From: Windsor, Ontario, Canada
Default Re: obx intake manifold... (SuperSlow)

I'm running 15psi daily now, and have a few things added to the mod list not on there yet, but this is basically it.

http://www.activeperf.com/memb...stare

SuperSlow&gt; Thanks for the references, I search everywhere and the typical "obx is **** y0!" and "my friends brother says it's shyte!" or " there is prolly no R&D into that thing, get a stock euro R, they are better designed"etc... post was about the technical info I could find.

--------

I'm well aware of previous quality to many obx parts but there **** seems to be improving lately and I think it is more application dependant. There LSD's seem to be all the rave now, and evn tested and proven to be a good product, there turbo manifolds clearly suck, things like shifters and **** i don't really see a difference.

The fit an finish of this IM is going to be alot less then a $500+ venom/ge/str. I'm sure but I don't mind doing some slight adjusting here and there so save over $400 if need be. Regardles of what IM I bought I would port match it clean the welds up, add fitting that I want etc... In this application I think anything of theis general design has to be better then stock since the stock was never designed to Fi or 2.4lor 9:1 or etc...

As we all know the bandwagons on HT are a plenty so no one wants to try OBX, but everything I have done with my setup since day 1 has been a "you can't do it" or "it won't work" etc..

So I guess this won't be any different. If it's **** I got a nice flange and runners to build my own plenum on...big deal. Lord knows I have wasted more then $175 on other useless **** along the year doing this hobby. &lt;cough bolt-ons&gt;, People will pay 300+for an AEM CAI intake to gain 3-5hp max cause they heard it's the **** yo, but dog on everything else...

In the end if this thing had a skunk2 label on the side of it 80% on HT would buy it and rave about it, and the other 20% would be die hard venom/ge/fr/etc lover who would dog on it saying how the quailty and design is no where near something that is 500x the price...

For NA apps I doubt you'd see much gain from this thing, but for FI I don't see how you couldn't especilly over the poorly designed dual runner h22 manifold which seems to be the biggest restriction in an h22 FI setup. This may not have perfect R&D and flow testing and porting etc... But it has all the basic things found in every "top dollar" manifold big plenum short runners and removes a lot of **** that I no longer use in my setup&lt;ie. egr/coolant lines/iac/iab/etc...&gt; People keep compairing this to all these huge $$ parts and companys, I'm more concerned on improving over what I have now, Not what I can't afford. If i can pay $175 for 5hp gain and a flatter tq curver or $500+ for 7hp gain and the same flatter tq curve, you can guess what I'll pick.

O well I guess I'll just see. Either way I will try and post a full review with as much unbiased info as I can...



Modified by Alstare at 4:10 PM 10/18/2004
Reply
Old Dec 1, 2004 | 03:04 PM
  #15  
Alstare's Avatar
 
Joined: Jan 2002
Posts: 665
Likes: 0
From: Windsor, Ontario, Canada
Default Re: obx intake manifold... (Alstare)

Here's a bit of an update...

It was pretty rough and needed alot of work, but for the $100 or so I paid for it you can't go wrong. I consider it more of a DIY kit then a bolt-on. If you can't or are not willing to do some porting/surfacing/custom fabbing then this manifold is not for you.

I had to portmatch it and port out the inside where the runners meet the flange cause they just leave the raw tube hanging inside the flange. Also I had to surface the head flange cause it was off by about .042 in the middle compaired to the ends.

I fabbed up a throttle bracket and used Tony the Tigers method of hooking up the iac valve. But instead of using a plate I just found a 1/4npt brass fitting at Home Depot that i threaded into the hole in the iacv. Amazingly the hole was the perfect size i just had to run a tap down it.

Also I had to redo some of my charge pipes becuase it sits about 6" lower then the stock manifold. I was absolutly amazed how low it sits and had to rearrange some stuff in my engine bay to allow for it &lt;civic/h22&gt;. I can now see atleast half of my firewall and up wide open in the back now.

Performance gain's I can't really provide yet. The weather has been extreamly shitty lately around here, the tracks are now closed, and I don't have any access or extra $ right now to do any dyno testing. I had to do some fine tuning again after the install and the butt dyno seems to approve, and I made some runs against a friends car that is always pretty much even from both a stop and a roll and it seems I can pull on him really hard now in compairson, Especilly on the top end.

So short answer is:

If you want to just bolt an IM on and go-on about your business the OBX is not for you. But if you don't mind getting dirty and doing some work you can't go wrong especilyl for the price you can get these things for. And it's not like us H22 guys have a big selction anyway.

On a side note I had done a visual compairson between the obx intake and the new venom and I must say they are absolutly identical. So I feel the results of both should be simular at huge price reduction...


Reply
Old Dec 1, 2004 | 05:29 PM
  #16  
SuperSlow's Avatar
Honda-Tech Member
 
Joined: Nov 2003
Posts: 3,548
Likes: 1
From: NORCAL, USA
Default Re: obx intake manifold... (Alstare)

Nice. So did you have to weld? You mention some porting/grinding to match/clean things up, but any welding? or pics?

Thanks for posting.
Reply
Old Dec 1, 2004 | 05:42 PM
  #17  
EKboyEK96's Avatar
 
Joined: Nov 2004
Posts: 55
Likes: 0
From: Daly City, CA, USA
Default Re: obx intake manifold... (flip1199)

obx stuff are cheap, the only thing you would trust buying from them are their mufflers or catbacks.
Reply
Old Dec 1, 2004 | 06:31 PM
  #18  
SuperSlow's Avatar
Honda-Tech Member
 
Joined: Nov 2003
Posts: 3,548
Likes: 1
From: NORCAL, USA
Default Re: obx intake manifold... (EKboyEK96)

and now try to contribute something original.

If only this thread asked for opinions.

knuckleheads.
Reply
Old Dec 1, 2004 | 10:22 PM
  #19  
Alstare's Avatar
 
Joined: Jan 2002
Posts: 665
Likes: 0
From: Windsor, Ontario, Canada
Default Re: obx intake manifold... (SuperSlow)

Nope the welds were really good amazingly and everything fit fine all and all I had to make a throttle bracket though.

Just bent a strip of 1/8" steel into an "L" shape and and tapped some holes under the IM to mount it and ran the cable under the runner nice and clean...

The only "cheapness" that I expected/seen was the thin material it's made of, it seemed extreamly thin, but seems more then plenty for this application, but if this is what they use for there turbo manifolds I can see why so many people have problems. And the straightness of the flange, there is noway it would of sealed without surfacing it.

I wanted take some pics for you guys, my camera was MIA when I got the manifold and installed it I really wanted to do a full fledge write up in this thread about the whole thing to end the usual rumors and post somefacts. But my Gf had my camera and was out of town, also another reason I had freetime to do the project...

I'll snap some pics of it installed when I get a chance, ther's not much to really see but I'll not how low it is and the clearences around stuff I suppose. All my piping and whtnot is still ghetto from it cause I haven't had time to make some new peices but you'll get the idea...
Reply
Old Dec 2, 2004 | 12:30 AM
  #20  
kikeh22's Avatar
 
Joined: Sep 2004
Posts: 55
Likes: 0
From: Japan
Default Re: obx intake manifold... (flip1199)

I have the venom one and it works great(my car is n/a)....OBX is a replica so it should work too
Reply
Old Dec 2, 2004 | 08:23 AM
  #21  
DLB1994's Avatar
Honda-Tech Member
 
Joined: Aug 2001
Posts: 4,083
Likes: 0
From: manakin sabot, va, us
Default Re: obx intake manifold... (****h22)

i wanted to buy one but if do am buying a new turbo in the same time ill hate to spend 300 or 400bucks and re-tuning my hondata for 10whp

am just going to max out what i have and try to be happy for a little while ,
Reply
Old Dec 2, 2004 | 08:51 AM
  #22  
Hawkze_2.3's Avatar
Honda-Tech Member
 
Joined: Jan 2004
Posts: 10,629
Likes: 1
From: Further down the spiral, TX, usa
Default Re: obx intake manifold... (****h22)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ****h22 &raquo;</TD></TR><TR><TD CLASS="quote">I have the venom one and it works great(my car is n/a)....OBX is a replica so it should work too </TD></TR></TABLE>

Yaaaahhh...the Venom manifold is made for turbo applications. You are most likely loosing power...
Reply
Old Dec 2, 2004 | 11:33 PM
  #23  
kikeh22's Avatar
 
Joined: Sep 2004
Posts: 55
Likes: 0
From: Japan
Default Re: obx intake manifold... (Hawkze_2.3)

Before you post stupid s hit ,search and learn a little bit more,k?

http://www.importtuner.com/tech/0208it_power/

and btw my car has way more **** than that one
Reply
Old Dec 3, 2004 | 06:02 AM
  #24  
SuperSlow's Avatar
Honda-Tech Member
 
Joined: Nov 2003
Posts: 3,548
Likes: 1
From: NORCAL, USA
Default Re: obx intake manifold... (****h22)

1. Nitrous is not NA.

2. The plenum design on the venom/str/obx/GE or any other square mani will generally rob power on NA setups.

3. Be careful who you criticize.
Reply
Old Dec 3, 2004 | 06:28 AM
  #25  
Hawkze_2.3's Avatar
Honda-Tech Member
 
Joined: Jan 2004
Posts: 10,629
Likes: 1
From: Further down the spiral, TX, usa
Default Re: obx intake manifold... (****h22)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ****h22 &raquo;</TD></TR><TR><TD CLASS="quote">Before you post stupid s hit ,search and learn a little bit more,k?

http://www.importtuner.com/tech/0208it_power/

and btw my car has way more **** than that one </TD></TR></TABLE>

Good job, *******, you got SuperSloWNED


Modified by Hawkze_2.3 at 7:53 AM 12/3/2004
Reply



All times are GMT -8. The time now is 07:50 PM.