[s-cars] Oh Mama!!!- 034 EFI??

Elijahallen92 at aol.com Elijahallen92 at aol.com
Tue May 10 17:35:58 EDT 2005

 This is something I really wanted to do but the car needed a new down  pipe 
and the new oil and water lines and i just didn't have the energy or $$ to  do 
it twice. 

n a message dated 5/10/2005 10:33:48 AM Eastern Standard Time,  
cpayne at bconnected.com writes:

Did you do any pre and post dyno runs when  just swapping out the
header from the RS2 to the Tubular?  I am very  curious of the HP/Torque
gains in addition to you lowering your full boost  threshold by 600 RPM



-----Original  Message-----
From:  s-car-list-bounces+cpayne=bconnected.com at audifans.com
[mailto:s-car-list-bounces+cpayne=bconnected.com at audifans.com]  On Behalf
Of Elijahallen92 at aol.com
Sent: Tuesday, May 10, 2005 6:22  AM
To: tfrank at symyx.com; bobs6 at msn.com;  CaptMagu at aol.com;
s-car-list at audifans.com
Subject: Re: [s-cars] Oh  Mama!!!- 034 EFI??

I'm another guy running this  header. Mine was a little different  since
chose to stay with  hybrid KKK's and not make the switch to Garretts at
point since  all I've had is bad experiances with garrett turbo's. I
don't  expect  
this header to last very long either but at this point I'm not  worried
it and the gains I feel from the header are well worth it  for now and I
a guy here that is designing a stainless header to  better sute my  
configuration for that day when this one says good  bye. Before the
header using  the RS2 
EM the turbo was spooled to  full boost by 3600rpms, now with this the
header its close to  3000rpms and there is no lag between shifts like
there  was  
before, needless to say I'm going to a bigger turbo, I'll use the  same
cold side housing machined to fit the 29 compressor  wheel and use the
larger #8 
hot side. I hope this will put full boost  right around 3500-3800 rpms. 
Anyway as  for the tube header, I've  been to one track event and it held
up fine 
but the  car wasn't  running great due to a coil going bad but I still
drove the 
piss  out  of it with no problems other than having to tighten all the
nuts  and 
bolts after  every run. I hope to be at another track event next  month
the car is running  very strong now so we'll see how she  holds up.


In a message dated 5/9/2005 9:36:39 PM  Eastern Standard Time,  
tfrank at symyx.com writes:

Hey we   are both waiting for the answer, I have honestly heard of this.
I  have  built a few headers myself, and if it was made of mild steel  and
it broke  then I would use stainless, I did this on a rotary  motor, a
racing beat,  thick steel header and made new out of 316, it  would
literally melt during  every race and I would weld it back  together and
patch it up.  After a  few $100 trips to me I  finally convinced him to
let me to it right.   At 2300deg F even  the 316 didn't have much of a
chance, but I made it a bit  thin so  that it would radiate some of the
heat and not store it all and  well  it worked.  If I had to do it again
today, I would use   inconel.  The liquidus temperature of mild steel
makes it such that  at  turbo temps it will typically just blow out, you
can use really  thick  material and coat the inside and it might have a
chance of  surviving, or  run your motor rich and keep the egt's down.   I
was involved with a  guy who contracted a local company to make  500
headers for a 1.8t  application, a tube header that could go into  the
stock location, our  buddies at TAP, where the only other guy's  making
something like this at  the time.  Anyway again the guy  cheaped out,
coated steel and he had  an issue with it blowing out  around the merger,
he was out 5k.  Even  though he had a few good  engineers and fab shops
telling him different some  of his buddies  said it would work.  He
couldn't even get the good fab  shops to  make it out of steel cuz they
said it wouldn't work.  Now he  is  out 5k and has about 100 junk
IMO steel is wrong, coated  steel  inside and out is honestly no better,
you might be able to save  it if you  just coat the inside, but coating
the outside is just  keeping more heat in  and raising the temp of the
metal and making it  more prone to  failure.  I don't see the logic in
mild steel, and  honestly have heard  one or two people say to use it, so
I am  wondering where people are getting  this info?  If 304  stainless
doesn't work then I would look at if  there are hot spots  being
by the design or if there are stresses  being put  onto the header by the
down pipe or the turbo, and if that  wouldn't  work, 321 stainless
"actually this is where I like to start" is  that  doesn't work...well I
know some who have gone to inconel.   Either  way I don't going from
stainless steel to mild steel if  stainless didn't  workout.  Earlier
month I talked to a  few fabricators about this  as well and they where
scratching there  heads too.  No fault of haps I  don't think and I  am
trying to kill his sales or anything.  Its  just that I  don't like
to say things, and have other people think  that  its correct and spread
unsubstantiated info about stuff.  All   headers have design issues, and
longevity issues regardless of the   material, it's not that simple to
build something that will last, I know  I  have had to repair and build
new for a lot of people, and had to  repair and  build new of my own work
when it's broken.  This just  happened to me  recently with a 321 exhaust
that I built for a 1.8t  road racing car,  improper bracing of the
and 3g turn  ripped the wastegate flange  right off. It was not a
temperature  related failure of the material per  say, but more of a
bracing and  design issue with the header and exhaust  system.  I  built
to replace a coated weld ell metal header that was  having  failure of
material issues and design issues.  So we all   fail but starting with a
poor material choice is not giving it much of  a  chance.  With that said
I hope that the headers work for  these  guys.  

Don't take my word for it, contact,   www.burnstainless.com  take a look
at  http://www.spdexhaust.com   give the guy's at www.wolfaircraft.com  a

-----Original  Message-----
From: Bob DG  [mailto:bobs6 at msn.com] 
Sent: Monday, May 09,  2005 5:57 PM
To:  Trevor Frank; CaptMagu at aol.com;  s-car-list at audifans.com
Subject: RE:  [s-cars] Oh Mama!!!- 034  EFI??

So what about the stainless being  brittle? Does it fit better  than the 
Swedish unit?

>From:  "Trevor Frank"  <tfrank at symyx.com>
>To: "Bob DG"  <bobs6 at msn.com>,   <CaptMagu at aol.com>,
<s-car-list at audifans.com>
>Subject:   RE: [s-cars] Oh Mama!!!- 034 EFI??
>Date: Mon, 9 May 2005 16:51:53   -0700
>As well as the down pipe.  All the  same  stuff, basically off of the
>700hp 034 efi 2.3l   aan.
>-----Original Message-----
>From:   s-car-list-bounces at audifans.com
>[mailto:s-car-list-bounces at audifans.com]   On Behalf Of Bob DG
>Sent: Monday, May 09, 2005 4:44 PM
>To:   CaptMagu at aol.com; s-car-list at audifans.com
>Subject: [s-cars] Oh  Mama!!!-  034 EFI??
>Related to Hap's post, does anyone  have any  experience with the 034
>tubular  header>
>  >From: CaptMagu at aol.com
> >To:  s-car-list at audifans.com
>  >Subject: [s-cars] Oh Mama!!!
>  >Date: Sun, 8 May 2005 23:15:42  EDT
> >
>  >S-heads
> >
> >The Happersized  Special roared back  to life after 3 days under the
> >capable  ife of  Evahboot's resident doctor, Dave Dawson. I am tired
>   >here's a link
> >to an AW post with install pics. One word   Wow!
> >
>   >http://forums.audiworld.com/s4s6/msgs/64914.phtml
>  >
>  >Hap, wit dakine few words from Evahboost,  Maguire
>   >_______________________________________________
>  >S-CAR-List  mailing list
>  >S-CAR-List at audifans.com
>   >http://www.audifans.com/mailman/listinfo/s-car-list
>S-CAR-List   mailing   list
>S-CAR-List at audifans.com
>Notice:   This e-mail message, together with any attachments,   contains
>information of Symyx Technologies, Inc. that may be   confidential,
>proprietary, copyrighted, privileged and/or  protected  work product,
>and is meant solely for the intended  recipient. If you  are not the
>intended recipient, and have  received this message in  error, please
>contact the sender  immediately, permanently delete the  original and
>any copies of  this email and any attachments   thereto.

S-CAR-List   mailing   list
S-CAR-List at audifans.com

S-CAR-List  mailing  list
S-CAR-List at audifans.com

More information about the S-CAR-List mailing list