check out my ETD shorty tubular mani - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Reply
 
 
 
LinkBack Thread Tools
Old 08-13-2007, 10:43 PM   #1
Elite Member
Thread Starter
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default check out my ETD shorty tubular mani

http://pages.sbcglobal.net/jcuadra/etd/

The videos make the collector construction clear.
JasonC SBB is offline   Reply With Quote
Old 08-13-2007, 10:48 PM   #2
Elite Member
iTrader: (12)
 
Join Date: Aug 2006
Location: Central-ish VA
Posts: 4,449
Total Cats: 16
Default

loading at 56k speeds
neogenesis2004 is offline   Reply With Quote
Old 08-13-2007, 11:08 PM   #3
Elite Member
iTrader: (13)
 
cjernigan's Avatar
 
Join Date: Oct 2006
Location: Atlanta, GA
Posts: 8,147
Total Cats: 6
Default

Get a photobucket, imageshack account. It'll be way faster for us all.

That mani looks great though. I wonder how well they perform. Sure they do well.
cjernigan is offline   Reply With Quote
Old 08-13-2007, 11:48 PM   #4
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 407
Default

I dunno. That's pretty bold not pointing the gases from 1 and 4 into the turbo instead of at each other...

Are you happy with the construction? T25 flange?
y8s is offline   Reply With Quote
Old 08-14-2007, 03:16 AM   #5
Elite Member
Thread Starter
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default

Yes I'm quite pleased.
I will port the part where the runners enter the T25 flange, the gases see a step. Shouldn't be too hard.

But first, I have to get my BMW running. The guy who will mod the BEGI downpipe to mate with the new turbo location will take 3 days. If I don't have a 2nd car, I can't visit him to check on his progress. Gotta send the BMW head out for porting and a valve job.
JasonC SBB is offline   Reply With Quote
Old 08-14-2007, 03:21 AM   #6
Elite Member
Thread Starter
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default

So y8s, where should I put thermal relief cuts?
JasonC SBB is offline   Reply With Quote
Old 08-14-2007, 03:22 AM   #7
Junior Member
 
Join Date: Oct 2006
Posts: 312
Total Cats: 0
Default

Yeah 2nd cars kick ***. Grats on the nice manifold. What size turbo?
beerslurpy is offline   Reply With Quote
Old 08-14-2007, 03:41 AM   #8
Elite Member
iTrader: (24)
 
kotomile's Avatar
 
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,578
Total Cats: 40
Default

So the idea with this manifold is to have a "best of both worlds" between log type and tubular/ram horn type?

Looks really good!
kotomile is offline   Reply With Quote
Old 08-14-2007, 11:01 AM   #9
Junior Member
iTrader: (1)
 
Join Date: Dec 2006
Location: Toronto, Canada
Posts: 72
Total Cats: 0
Default

Quote:
Originally Posted by JasonC SBB View Post
So y8s, where should I put thermal relief cuts?
Don't do relief cuts.

I've had two of those manifolds, a 1.6 and a 1.8...

On the first one (1.6), I made relief cuts and it cracked regularily. John at ETD said it was the cuts causing it.

I got a second one for my 1.8, didn't make any cuts and it is fine, no cracks.
Starsky is offline   Reply With Quote
Old 08-14-2007, 11:20 AM   #10
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 407
Default

yeah I dont know that you need relief cuts (or that I did heh!)

The pipes aren't a single piece like a cast manifold so there is room for expansion and bending.

The thing I had an issue with on my ETD was flange flatness. You may want to have both flanges skimmed to get them flat again.

I admit I'm a little jealous. I bet yours flows as good or better than mine and weighs about half as much.
y8s is offline   Reply With Quote
Old 08-15-2007, 12:55 PM   #11
Elite Member
Thread Starter
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default

I called em and they said they had way more cracking with cut manifolds than those without. They also said they heat cycle 'em and re-skim 'em flat.

Don't be jealous. My turbo is like Peewee Herman to your John Holmes special.

I'll be porting the turbo side flange a bit, the gases see a step going from the tubes to the flange.

kotomile the idea is to NOT FKN have the gases turn sharp corners like almost every other cast mani out there.
JasonC SBB is offline   Reply With Quote
Old 08-15-2007, 12:59 PM   #12
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

looking forward to data...
Hurry up!
Ben is offline   Reply With Quote
Old 08-15-2007, 01:17 PM   #13
Junior Member
 
Join Date: May 2007
Posts: 62
Total Cats: 0
Default

Nice manifold!
shayrgob is offline   Reply With Quote
Old 08-15-2007, 01:33 PM   #14
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 407
Default

Quote:
Originally Posted by JasonC SBB View Post
I called em and they said they had way more cracking with cut manifolds than those without. They also said they heat cycle 'em and re-skim 'em flat.
Nice that they do that now.

My head flange was about as straight as a politician.
y8s is offline   Reply With Quote
Old 01-11-2008, 11:00 PM   #15
Newb
 
Join Date: Jan 2007
Location: New Jersey
Posts: 28
Total Cats: 0
Default

Jason,

Any data on the new manifold? How does it compare to the AVO or better yet with the new Begi "directed pulse" cast manifold?
RSV-95 is offline   Reply With Quote
Old 03-28-2008, 04:33 PM   #16
Junior Member
iTrader: (7)
 
Join Date: Feb 2007
Location: Overland Park, KS
Posts: 395
Total Cats: 6
Default

Quote:
Originally Posted by RSV-95 View Post
Jason,

Any data on the new manifold? How does it compare to the AVO or better yet with the new Begi "directed pulse" cast manifold?

Jason, sent you a PM. You haven't posted in a while. Hopefully you are still around.

I am considering this manifold and would like to know your results as well.

Thanks,
-Josh
MazDilla is offline   Reply With Quote
Old 03-29-2008, 06:37 PM   #17
Junior Member
iTrader: (1)
 
Join Date: Jan 2006
Location: Ontario, Canada
Posts: 84
Total Cats: 0
Default

Looks good, guess you are not running an external waste gate. you think it would be possible to add one to this type of header?

I'm going to be using a tial 38mm.
2004GS is offline   Reply With Quote
Old 03-29-2008, 06:48 PM   #18
Elite Member
iTrader: (13)
 
cjernigan's Avatar
 
Join Date: Oct 2006
Location: Atlanta, GA
Posts: 8,147
Total Cats: 6
Default

They offer that manifold with an external wastegate flange added on. You can see it in the pictures.
cjernigan is offline   Reply With Quote
Old 03-29-2008, 10:02 PM   #19
Newb
 
Join Date: Jan 2007
Location: New Jersey
Posts: 28
Total Cats: 0
Default

Quote:
Originally Posted by MazDilla View Post
Jason, sent you a PM. You haven't posted in a while. Hopefully you are still around.

I am considering this manifold and would like to know your results as well.

Thanks,
-Josh
I've received a couple of PM's but nothing from Jason. Yep, still around. The ETD looks interesting and I'm curious about the benefits from a design standpoint. But if I ever upgrade I'm probably going to lean towards an "Absurdflow" mani from TurboTim. That boy can weld!! Just take a look at Paul's setup.
RSV-95 is offline   Reply With Quote
Old 03-31-2008, 10:04 AM   #20
Elite Member
iTrader: (9)
 
TurboTim's Avatar
 
Join Date: Jun 2006
Location: Chesterfield, NJ
Posts: 6,485
Total Cats: 248
Default

Thanks Riccardo!

I'm going to make a couple manifolds in the next month or so. That way if someone wants one they don't have to wait. Bla bla bla. I jsut feel like building two.
TurboTim is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
15x10 - 15x11 6UL @ 949 Racing emilio700 Wheels and Tires 151 06-02-2017 03:36 PM
New M62 Miata owner Pist0n Meet and Greet 4 10-01-2015 09:18 PM
"Chimney Ethanol" E100 MiataGarage Engine Performance 5 09-30-2015 12:04 AM
Another Alternator thread ihiryu General Miata Chat 9 09-28-2015 11:22 AM


Thread Tools

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 Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 01:07 PM.