exhaust tubing size for N/a - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members

Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by:

LinkBack Thread Tools Search this Thread
Old 11-18-2013, 08:52 PM   #21
Supporting Vendor
iTrader: (3)
emilio700's Avatar
Join Date: May 2005
Posts: 5,309
Total Cats: 1,328

At TTD power levels, 2.5" might make 1-2whp more past 7500 rpm. Weight won't matter since it's down low and you're adding ballast anyway.

From what I have seen, there are no significant gains N/A below 180whp or so with 2.5" over 2.25". We have gradually migrated towards putting Borla XR-1 systems with optional muffler (2.25") or RB single tip systems (2.375") on every car in our shop. The RB is prettier and costs a bit less so it tends to be our favorite.
emilio700 is online now   Reply With Quote
Old 11-19-2013, 01:01 AM   #22
Junior Member
Thread Starter
iTrader: (1)
Join Date: Aug 2013
Posts: 224
Total Cats: 13

Thanks for the info! Unfortunately I cant use an OTS exhaust because of the way my trans tunnel is modified for seat clearance but I will have one built in the suggested fashion
circuitmstr74 is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Garrett Turbo, 1.8 Oil Pan, & Misc. Stuff nbdooey Miata parts for sale/trade 9 08-30-2017 10:50 PM
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 57 07-19-2017 05:11 PM
Another Cast Manifold Corky Bell Prefabbed Turbo Kits 18 11-22-2016 10:01 PM
1994 Spec Miata Race Car SM/SM2/SSM For Sale Quinn Cars for sale/trade 6 10-23-2016 08:58 AM
1996 Turbo Build Goldwar DIY Turbo Discussion 2 09-29-2015 10:20 AM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 10:43 AM.