2.25 OR 2.5 Pipe
09-13-2008, 07:49 AM
#1
Junior Member
Thread Starter
Join Date: May 2007
Posts: 57
Likes: 0
Received 0 Likes
on
0 Posts
Car: 86 z28
Engine: 350 sbc
Transmission: TH350
Axle/Gears: 2.73
2.25 OR 2.5 Pipe
Ok new engine making 360/370. 650cfm carb, hedman elite headers. Will 2.25 dual system work good?
09-13-2008, 01:08 PM
#2
TGO Supporter
Join Date: Oct 2002
Location: Saskatoon, SK, Canada
Posts: 9,067
Likes: 0
Received 1 Like
on
1 Post
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Re: 2.25 OR 2.5 Pipe
2.25" dual flows about the same as a 3" single, so yes it should work fairly well up to around 370-400hp.
09-13-2008, 05:31 PM
#4
Junior Member
Join Date: Sep 2008
Location: South Jersey
Posts: 13
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1968 chevelle
Re: 2.25 OR 2.5 Pipe
there is no exact horsepower level. you need to be more specific with the engine. mainly cubic inch, camshaft specs, head flow numbers, runner size, etc. id put a 2.5 inch on and be done, depending on the cubic inch. if it is a 383+ i would say 3 inch because then u have room for more improvement without choking the motor and having to pay for exhaust twice.
09-14-2008, 06:52 AM
#5
Junior Member
Thread Starter
Join Date: May 2007
Posts: 57
Likes: 0
Received 0 Likes
on
0 Posts
Car: 86 z28
Engine: 350 sbc
Transmission: TH350
Axle/Gears: 2.73
Re: 2.25 OR 2.5 Pipe
350 CID, 76cc heads with 2.02"Int/1.600,Hydraulic flat tappet cam with .480" valve lift, performer RPM Intake, 9.1 Comp. Nothing special.
09-14-2008, 07:30 PM
#6
Junior Member
Join Date: Sep 2008
Location: South Jersey
Posts: 13
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1968 chevelle
09-15-2008, 11:18 AM
#7
Senior Member
iTrader: (3)
Join Date: Oct 1999
Location: Apple Valley, MN
Posts: 549
Likes: 0
Received 0 Likes
on
0 Posts
Car: 92 Z28 convertible
Engine: Miniram 383
Transmission: T-56
Axle/Gears: 4.10 stk 10 bolt
Re: 2.25 OR 2.5 Pipe
Also keep in mind if this is a daily driven car, dual exhaust systems run under a thirdgen lose ALOT of ground clearance. With your "nothing special" 350 I think you'd be better off with a good 3" cat back system. It will save you alot of headaches. Just my .02c
Trending Topics
09-15-2008, 12:28 PM
#8
Senior Member
Join Date: Dec 2006
Location: toledo
Posts: 584
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1987 Z28
Engine: LG4
Transmission: T5
Axle/Gears: 3.23
Re: 2.25 OR 2.5 Pipe
I am running a 3" catback and love the fitment and ground clearance. From what ive heard my 327 will no be choked up from the setup
09-15-2008, 02:07 PM
#9
Junior Member
Join Date: Jul 2008
Location: Tulsa, OK
Posts: 49
Likes: 0
Received 0 Likes
on
0 Posts
Car: 95 Z28, 92 Camarobird
Engine: 410 rearwheel hp LT1, TBI 305
Transmission: 4L60E, 700R4
Axle/Gears: 4.11's, Whatever BS GM put in it
Re: 2.25 OR 2.5 Pipe
X3. 3 inch will be the way to go. Plus the 3" single pipe gives a deeper tone than 2.25"
09-15-2008, 03:08 PM
#10
Junior Member
Thread Starter
Join Date: May 2007
Posts: 57
Likes: 0
Received 0 Likes
on
0 Posts
Car: 86 z28
Engine: 350 sbc
Transmission: TH350
Axle/Gears: 2.73
Re: 2.25 OR 2.5 Pipe
would i have to get a custom y-pipe for my hedman elite shorties, (ball and socket flange)?
09-15-2008, 03:51 PM
#11
Re: 2.25 OR 2.5 Pipe
heres the link--http://store.summitracing.com/partde...5&autoview=sku
09-15-2008, 03:56 PM
#12
Junior Member
Thread Starter
Join Date: May 2007
Posts: 57
Likes: 0
Received 0 Likes
on
0 Posts
Car: 86 z28
Engine: 350 sbc
Transmission: TH350
Axle/Gears: 2.73
Re: 2.25 OR 2.5 Pipe
yea but thats a 2 1/2 single, if i wanted to go with a 3" Y to a 3" intermediate pipe, does anyone make one of those? because it just doesn't make sense to run a single 2 1/2 or run an expander at the end of the Y to make it a 3". Or at least thats what i think? idk lol
Thread
Thread Starter
Forum
Replies
Last Post
[Sold] Flowmaster exhaust system
Night rider327
Engine/Drivetrain/Suspension Parts for Sale
4
10-09-2015 09:25 AM
LT1Formula
Engine/Drivetrain/Suspension Parts for Sale
7
10-08-2015 08:34 PM
