PT Cruiser Forum  
Advertisements
       

Go Back   PT Cruiser Forum > 2.4L Turbo Forums > General Turbo Discussions

PT Cruiser Forum

Advertisements
Possibly dumb turbo manifold question

 
Like Tree10Likes
  • 1 Post By kudah440
  • 1 Post By Handy_Cruiser
  • 1 Post By kudah440
  • 5 Post By _PTGT03
  • 1 Post By Handy_Cruiser
  • 1 Post By kudah440

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 30 Jun 2020, 03:50 pm
Young Cruiser
 
Join Date: Sep 2017
Posts: 72
Default Possibly dumb turbo manifold question

So, growing up building Mopar musclecars, there was a very standard process.
Step 1: purchase Barracuda, Challenger, Duster, Satellite etc..
Step 2: stop at parts store one the way home and buy Hedman or Hooker headers...
Step 3: install headers BEFORE exhaust even cools.

Standard operating procedure, but why aren't headers even remotely involved in building a turbo PT for instance.
I understand the exhaust flow will have different circumstances.... But wouldn't free flowing, mandrel bent headers still improve things?
I dunno, it was threatening to rain so I quit working on the PT and I'm in the bar contemplating my next mods when this idea infested my spongy idea-maker....🤔🤔🤔
rockandroller likes this.
__________________
Jeremy
03 PT GT Inferno red Auto
95 Caprice wagon LT1
69 Barracuda 440 8bbl
plus a long list of vehicular toys
Reply With Quote
  #2 (permalink)  
Old 30 Jun 2020, 07:36 pm
Handy_Cruiser's Avatar
Obsessed Cruiser
 
Join Date: Oct 2013
Location: Arkansas
Posts: 10,653
Default Re: Possibly dumb turbo manifold question

On the turbo PT, the exhaust manifold is integrated with the turbocharger. It's called a "turbofold".



To use a custom exhaust manifold you have to adopt the setup with a "log" exhaust manifold and a turbo with it's own exhaust housing. Chris has one of these on his PT. It also requires the use of a SRT4 style intake manifold and custom intercooler pipes. It's a pretty considerable mod on a PT but opens up the door to additional performance mods like like Chris has.



Here's what the exhaust manifolds look like for this:




And here's a header design. There's several to choose from:

rockandroller likes this.
__________________

Last edited by Handy_Cruiser; 01 Jul 2020 at 11:10 am.
Reply With Quote
  #3 (permalink)  
Old 30 Jun 2020, 08:54 pm
Young Cruiser
 
Join Date: Sep 2017
Posts: 72
Default Re: Possibly dumb turbo manifold question

But that seems like it would be a first mod from my point of view, but it seems that people don't see it that way. Why doesn't Hooker have these all over the place, if I fit an 440 RB big block in my little A-body barracuda that was never intended to have a big block with off the shelf conversion headers you know they can build one to give the advantage of free flowing, equal length runner tubes that still allow you to close the hood... But the products aren't there, and people don't seem willing to go through the effort.
Just just strange coming from my background where improve exhaust flow, then improve intake flow, cam, heads, converter, gears then make them all love each other and work together... Seems completely opposite to how it things are done now.
Just silly musings though...
Handy_Cruiser likes this.
__________________
Jeremy
03 PT GT Inferno red Auto
95 Caprice wagon LT1
69 Barracuda 440 8bbl
plus a long list of vehicular toys

Last edited by kudah440; 01 Jul 2020 at 02:58 pm. Reason: autocorrect is bad
Reply With Quote
  #4 (permalink)  
Old 01 Jul 2020, 02:10 am
_PTGT03's Avatar
Fanatic Cruiser
 
Join Date: Oct 2015
Location: Abbotsford, British Columbia.
Posts: 774
Default Re: Possibly dumb turbo manifold question

Quote:
Originally Posted by kudah440 View Post
But that seems like it would be a first mod from my point of view, but it seems that people don't see it that way. Why doesn't Hooker have these all over the place, if I fit an 440 RB big block in my little A-body barracuda that was never intended to have a big block with off the shelf conversion headers you know they can build one to give the advantage of free flowing, equal length runner heads that still allow you to close the hood... But the products aren't there, and people don't seem willing to go through the effort.
Just just strange coming from my background where improve exhaust flow, then improve intake flow, cam, heads, converter, gears then make them all love each other and work together... Seems completely opposite to how it things are done now.
Just silly musings though...
forced induction engines don't need to go to the lengths of expensively produced tubular manifolds because any power loss due to drag can be made up with more flow and turbo pressure. cast iron exhaust manifolds retain heat energy more effectively than tube headers, leading to hotter gasses which expand and spin the turbo faster.
__________________
2003 GT M/T in Onyx Green Pearl on Michelin Pilot Sport AS 3 Plus Tires 205/50ZR17. Dark Slate Gray Interior. OEM cargo net, parcel shelf, slush mats and trunk protector, mud flaps, mopar subwoofer. Platinum edition pedals, Neon SX 2.0 steering wheel with black+grey wrapped leather cover. Generic lowering springs, KYB gas shocks, Valeo solid flywheel conversion and clutch kit. Urethane insert engine mounts. Energy suspension full body urethane bushing kit. Chrysler premium front speakers, Jenson 6x9 rears. Boston Audio 4x55W amp. Panasonic head unit with xtenzi bluetooth. 300W AC power inverter. Escort 360max and Escort Shifter ZR4, dual front+rear dash camera. stage 1 blow off valve and syked tune computer . Boost and oil pressure gauges with Turbo-Timer. Needswings 3" exhaust elbow, Electric valve actuated Y-pipe with catalytic converter. To do: coilovers, 2step controller, quaife diff, Air-Fuel Meter
Reply With Quote
  #5 (permalink)  
Old 01 Jul 2020, 11:05 am
Handy_Cruiser's Avatar
Obsessed Cruiser
 
Join Date: Oct 2013
Location: Arkansas
Posts: 10,653
Default Re: Possibly dumb turbo manifold question

Quote:
Originally Posted by kudah440 View Post
But that seems like it would be a first mod from my point of view, but it seems that people don't see it that way. Why doesn't Hooker have these all over the place, if I fit an 440 RB big block in my little A-body barracuda that was never intended to have a big block with off the shelf conversion headers you know they can build one to give the advantage of free flowing, equal length runner heads that still allow you to close the hood... But the products aren't there, and people don't seem willing to go through the effort.
Just just strange coming from my background where improve exhaust flow, then improve intake flow, cam, heads, converter, gears then make them all love each other and work together... Seems completely opposite to how it things are done now.
Just silly musings though...
On an American V8 car, headers are relatively cheap and pretty well bolt-on. And there's often a decent payoff in power and/or sound. That's not really the case with a turbo PT Cruiser.

If you look back through the older posts on this forum, you will see that back in the day, many of the more serious racers and hotrodders did convert to a setup like Chris has. It just makes more sense for other modifications. But this is a pretty expensive upfront cost. Over the last ten years or so, the PT has become more of a low-cost play car and/or just cheap transportation. Many current owners, including most of the hotrodders, just don't want to spend that kind of money on them.
kudah440 likes this.
__________________

Last edited by Handy_Cruiser; 01 Jul 2020 at 11:11 am.
Reply With Quote
  #6 (permalink)  
Old 01 Jul 2020, 02:28 pm
Young Cruiser
 
Join Date: Sep 2017
Posts: 72
Default Re: Possibly dumb turbo manifold question

Aahhh...I completely get the flow part and forced flow part, and thats what I was generally basing my thoughts on. My experience I remember going to ridiculous efforts for and tiny scrap of .00Xth of a second...but I never thought about the heat retention aspect of it.
You would think with as much skin I've left on the headers over the years, that would be a first thought.
That 440 'Cuda is notorious for it, she's got Schumaker creative services chrome coated conversion headers (theres even a couple pics of my 'Cuda in the customer cars section), and funny thing about the chrome headers, it just straight burns the skin directly onto the chrome unlike painted ones where you just tend to get the burn part.

Quote:
Originally Posted by _PTGT03 View Post
forced induction engines don't need to go to the lengths of expensively produced tubular manifolds because any power loss due to drag can be made up with more flow and turbo pressure. cast iron exhaust manifolds retain heat energy more effectively than tube headers, leading to hotter gasses which expand and spin the turbo faster.
__________________
Jeremy
03 PT GT Inferno red Auto
95 Caprice wagon LT1
69 Barracuda 440 8bbl
plus a long list of vehicular toys
Reply With Quote
  #7 (permalink)  
Old 01 Jul 2020, 03:12 pm
Young Cruiser
 
Join Date: Sep 2017
Posts: 72
Default Re: Possibly dumb turbo manifold question

But now that I see some....those are puuuurty...me likey

Makes me want to go mock-up some header designs for twin turbo on the wifes Duster...OH' or even the future project Dodge Scamp. "The TT SuperScamp". Oh no, the project is named, now its a thing. But Im liking this idea.
And I was just going to go out to my Zombie Apocalypse shelter and reload a couple hundred 9mm rounds to relax. lol

Quote:
And here's a header design. There's several to choose from:

Handy_Cruiser likes this.
__________________
Jeremy
03 PT GT Inferno red Auto
95 Caprice wagon LT1
69 Barracuda 440 8bbl
plus a long list of vehicular toys
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Dumb question: Need help Michigander General PT Cruiser Discussions 21 17 Sep 2014 05:04 pm
Dumb Question L2fish Tech & Performance Forum 1 07 May 2013 07:54 pm
Dumb Question of the Day Badglas General PT Cruiser Discussions 5 07 Nov 2012 11:54 am
question about plastic manifold for turbo 4SPEED Tech & Performance Forum 8 25 Sep 2008 08:21 pm
Turbo manifold question proxeyed Tech & Performance Forum 6 29 Jan 2005 12:55 am


All times are GMT -5. The time now is 03:53 pm.




Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
vB.Sponsors