Where does a 1.6 DP on a 1.8 put the outlet as opposed to a 1.8 on a 1.8? - 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 04-05-2010, 07:26 PM   #1
Want fries with that?
Thread Starter
iTrader: (3)
 
Join Date: Oct 2009
Location: Twin Cities, Minnesota
Posts: 2,023
Total Cats: -1
Default Where does a 1.6 DP on a 1.8 put the outlet as opposed to a 1.8 on a 1.8?

I picked up a BEGI-S DP from a 1.6. I have a 96. I'm planning on just fabbing up a piece if it's near 1.8 outlet. If it's not, I'm only out 80 bucks.

Where will it put the DP in relation to the stock outlet?
rider384 is offline   Reply With Quote
Old 04-05-2010, 07:45 PM   #2
Elite Member
iTrader: (17)
 
Join Date: Apr 2009
Location: Atlanta, GA
Posts: 2,831
Total Cats: 0
Default

sell the 1.6 DP and buy mine!
WonTon is offline   Reply With Quote
Old 04-05-2010, 08:40 PM   #3
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,854
Total Cats: 1,788
Default

get a 1.6L cat. profit.
Braineack is offline   Reply With Quote
Old 04-05-2010, 08:44 PM   #4
Senior Member
iTrader: (6)
 
Join Date: Sep 2007
Posts: 1,085
Total Cats: 30
Default

Quote:
Originally Posted by rider384 View Post
I picked up a BEGI-S DP from a 1.6. I have a 96. I'm planning on just fabbing up a piece if it's near 1.8 outlet. If it's not, I'm only out 80 bucks.

Where will it put the DP in relation to the stock outlet?
Gatdamn! If you decide to sell it let me know! I'm local and i'll run over and pick it up.
albumleaf is offline   Reply With Quote
Old 04-05-2010, 08:50 PM   #5
Elite Member
iTrader: (17)
 
Join Date: Apr 2009
Location: Atlanta, GA
Posts: 2,831
Total Cats: 0
Default

Quote:
Originally Posted by albumleaf View Post
Gatdamn! If you decide to sell it let me know! I'm local and i'll run over and pick it up.
see! sell it and buy mine!

help sombody out, then help me out so i can help sombody else out!
WonTon is offline   Reply With Quote
Old 04-05-2010, 08:59 PM   #6
Want fries with that?
Thread Starter
iTrader: (3)
 
Join Date: Oct 2009
Location: Twin Cities, Minnesota
Posts: 2,023
Total Cats: -1
Default

Quote:
Originally Posted by Braineack View Post
get a 1.6L cat. profit.
Are you for cerial? Really. 'Cause a 1.6 test pipe would be profit.


Quote:
Originally Posted by albumleaf View Post
Gatdamn! If you decide to sell it let me know! I'm local and i'll run over and pick it up.
If Brain isn't for cerial, we can probably work something out. I'll let you know.
rider384 is offline   Reply With Quote
Old 04-05-2010, 10:47 PM   #7
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,854
Total Cats: 1,788
Default

should be in the ballpark but for the cat flange.
Braineack is offline   Reply With Quote
Old 04-06-2010, 10:51 AM   #8
Junior Member
iTrader: (6)
 
Join Date: Jan 2006
Location: St Johns, Fl
Posts: 378
Total Cats: 0
Default

I believe the only difference is the location (fwd/aft) of the flange (and maybe angle). I bought a 1.8 DP for my 1.6 with the understanding that I was going to custom make the exhaust from the DP flange back, but I ended up saving the DP for my 1.8 car instead. I asked Stephanie the same question and she looked at the two and said the 1.8 flange ends up farther back (I think). If you are trying to mate to the stock exhaust, you may need a short pipe with two flanges to connect the two.
clay is offline   Reply With Quote
Old 04-06-2010, 11:02 AM   #9
Elite Member
iTrader: (24)
 
Join Date: Jul 2007
Location: Cypress, TX
Posts: 3,778
Total Cats: 35
Default

The downstream cat flange (cat-back) is in the same place on 1.6 and 1.8.

I've swapped in a stock 1.8 'downpipe' and cat to pass emissions with my stock 1.6 manifold before.
Bryce is offline   Reply With Quote
Old 04-06-2010, 11:13 AM   #10
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,854
Total Cats: 1,788
Default

Quote:
Originally Posted by Bryce View Post
The downstream cat flange (cat-back) is in the same place on 1.6 and 1.8.

I've swapped in a stock 1.8 'downpipe' and cat to pass emissions with my stock 1.6 manifold before.

See....don't doubt the
Braineack is offline   Reply With Quote
Old 04-06-2010, 03:28 PM   #11
Want fries with that?
Thread Starter
iTrader: (3)
 
Join Date: Oct 2009
Location: Twin Cities, Minnesota
Posts: 2,023
Total Cats: -1
Default

Quote:
Originally Posted by Bryce View Post
The downstream cat flange (cat-back) is in the same place on 1.6 and 1.8.

I've swapped in a stock 1.8 'downpipe' and cat to pass emissions with my stock 1.6 manifold before.
But what's the point in having separate 1.8 and 1.6 downpipes then? Just to accomodate the different cat?
rider384 is offline   Reply With Quote
Old 04-06-2010, 04:37 PM   #12
Senior Member
iTrader: (18)
 
Join Date: May 2008
Location: Big Bear Ca
Posts: 990
Total Cats: 8
Default

To make my 1.8 swap with 1.8 DP fit into my 90. All I had to do was get a 1.8 cat. Both cars have identical exhaust once you are past the cat.

Like he said, don't doubt the
dstn2bdoa is offline   Reply With Quote
Old 04-07-2010, 03:44 PM   #13
Junior Member
iTrader: (1)
 
Join Date: Oct 2008
Location: Edmonton, Alberta
Posts: 86
Total Cats: 0
Default

Thank god for no emissions in Canada. I would just go catless and fab a piece inbetween if you got the skillzors and tools.
aphongt is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 57 07-19-2017 05:11 PM
Noob to Miataturbo from MA JxPhan Meet and Greet 3 10-02-2015 03:17 AM
Going back to stock. Need some 1.6 parts. Trent WTB 2 10-01-2015 01:15 PM
Low oil pressure after 1.8 swap and new turbo setup JesseTheNoob DIY Turbo Discussion 15 09-30-2015 03:44 PM


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 01:00 PM.