TSP Duals vs Y Pipe/Catback for H/C/I 150 shot - LS1TECH - Camaro and Firebird Forum Discussion

Notices
Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

TSP Duals vs Y Pipe/Catback for H/C/I 150 shot

Old 01-03-2019, 08:16 PM
  #1  
TECH Addict
Thread Starter
iTrader: (77)
 
98RedBird's Avatar
 
Join Date: May 2005
Location: Peoria, IL
Posts: 2,588
Default TSP Duals vs Y Pipe/Catback for H/C/I 150 shot

So a few years ago I picked up a set of TSP 1 7/8's and their rumbler duals. They were intended for another car that they never went on.

So now I'm building this car and still have them sitting there.

That said, the duals will present a few issues for me. I'm going to be lowered on strano's/koni yellow's, so ground clearance with the duals will suffer compared to a y setup.

The other issue is drone, the duals can suck in an automatic (which this car is).

The other "possible" issue is smell. I do have the option to run cats with the y pipe setup to cut down on the odor if I so choose.

If not for the potential power loss, I'd absolutely go with the y pipe setup.

So, in regards to the power being given up between the two, what are we realistically talking here? Both H/C/I and with the 150 shot?

98RedBird is offline  
Old 01-04-2019, 02:11 PM
  #2  
TECH Fanatic
iTrader: (4)
 
trilkb's Avatar
 
Join Date: Jul 2005
Posts: 1,673
Default

Maybe a 4" catback would be the best route. Maybe tsp with cutouts at the headers?

one guy just saw big gains from true duals out the back.

Everything is a sacrifice.
trilkb is offline  
Old 01-04-2019, 02:27 PM
  #3  
Staging Lane
 
Join Date: Dec 2017
Posts: 91
Default

Check out Mavn's build thread on the gen 3 page. Picked up YUUUGEEE gains with the speed engineering duals over the stocker y pipe stuff
LSleeper1500 is offline  
Old 01-07-2019, 12:39 PM
  #4  
TECH Junkie
iTrader: (11)
 
Full-Force's Avatar
 
Join Date: Aug 2004
Location: Upstate of SC
Posts: 3,035
Default

Cant compare dual to stockish y pipe setup. A good merge with a 4" outlet is gonna sound the same and perform better in my opinion. My heads/cam car is trapping 99MPH in the 1/8th and sounds damn good.

I didn't know it was gonna be a pro tree so I left at too low of an rpm. Otherwise I would have left around 6,000

Full-Force is offline  
Old 01-08-2019, 03:27 AM
  #5  
TECH Apprentice
iTrader: (1)
 
Join Date: Jun 2008
Location: Houston/Clear Lake, TX.
Posts: 330
Default

I've learned that if you want to run a Y pipe and get the most out of it you will need a y pipe merge of 3inches into 4 inches and then a cutout.
A Flowmater merge is the best bang for the buck that I've read.
Here are some pics of what I mean.


383z is online now  
Old 01-08-2019, 03:49 PM
  #6  
TECH Junkie
iTrader: (6)
 
bad_408_vert's Avatar
 
Join Date: Jan 2009
Location: Queens, NYC
Posts: 3,229
Default

Thereís limited options with space in lowered car.
Another possibility is to run cutouts before the y merge.
Depends on if you will get alotta street driving on bad roads.
This is what im going with in spring.


Last edited by bad_408_vert; 01-08-2019 at 03:56 PM.
bad_408_vert is offline  
Old 01-09-2019, 01:28 AM
  #7  
TECH Apprentice
iTrader: (1)
 
Join Date: Jun 2008
Location: Houston/Clear Lake, TX.
Posts: 330
Default

Originally Posted by bad_408_vert View Post
Thereís limited options with space in lowered car.
Another possibility is to run cutouts before the y merge.
Depends on if you will get alotta street driving on bad roads.
This is what im going with in spring.

Damn that looks pretty!!
What are all the parts you used and how did you get it one color?
383z is online now  
Old 01-09-2019, 09:37 AM
  #8  
TECH Junkie
iTrader: (6)
 
bad_408_vert's Avatar
 
Join Date: Jan 2009
Location: Queens, NYC
Posts: 3,229
Default

Originally Posted by 383z View Post
Damn that looks pretty!!
What are all the parts you used and how did you get it one color?
Thanks, that picture is something I want to do, not my ypipe.
Parts, From what I can see itís 2 cutouts, Flowmaster Y merge, meticously bent pipes and some paint.
bad_408_vert is offline  
Old 01-10-2019, 02:17 AM
  #9  
TECH Apprentice
iTrader: (1)
 
Join Date: Jun 2008
Location: Houston/Clear Lake, TX.
Posts: 330
Default

I wonder what brand cut outs are those? I don't recognize them.
383z is online now  
Old 01-10-2019, 07:39 AM
  #10  
TECH Enthusiast
 
ZYA_LTR's Avatar
 
Join Date: Sep 2002
Location: Clinton Twp. Michigan
Posts: 658
Default

They look like any standard cutout available at Summit or Jegs, plain jane 3 bolt flange setup, just custom trimmed by installer to align properly with the Y-pipe.
ZYA_LTR is offline  


Thread Tools
Search this Thread

About Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: