Sponsored

GT350 manifold worth it?

ALUSA

Well-Known Member
Joined
Jul 13, 2017
Threads
9
Messages
558
Reaction score
179
Location
Plainfield, IL
First Name
AL
Vehicle(s)
2015 Mustang GTPP, 2017 Cadillac CTS 2.0T AWD
This is true. I've seen back to back GT350 vs. CJ manifold drag races (at strips) and the CJ wins in trap speed and time just about every time, unless the guy has a bad launch. Typically we're talkin' street tire runs. I haven't seen every race of the GT350 vs. CJ and #drivermod matters but... then we have dyno days relatively often and, well, the CJ wins by a smidge again in the curve.

The GT350, compared to the CJ (if you're going to change the manifold anyway), is a much better bang for the buck, though. I think the CJ, because of the fancy TB and need for at least a different intake tube, is notably more expensive.
I can't imagine an 18 gtpp with 10 speed auto and magna ride running cobra jet intake manifold. If they find a way to do that then we are looking at an NA Track and Drag Strip Monster! This is with proper tires ofcourse.
Sponsored

 

JustinReed

Well-Known Member
Joined
May 11, 2015
Threads
34
Messages
292
Reaction score
37
Location
Santee
Vehicle(s)
2017 Mustang GT
I can't imagine an 18 gtpp with 10 speed auto and magna ride running cobra jet intake manifold. If they find a way to do that then we are looking at an NA Track and Drag Strip Monster! This is with proper tires ofcourse.
I agree
 

WildHorse

N/A or GO HOME
Joined
Jun 28, 2017
Threads
270
Messages
10,297
Reaction score
8,350
Location
Home World: CLASSIFIED
First Name
Puddintane
Vehicle(s)
'17 S550
Vehicle Showcase
1
Last edited:

CEHollier

Well-Known Member
Joined
Sep 6, 2015
Threads
81
Messages
1,570
Reaction score
707
Location
Prairieville, La.
First Name
Charles
Vehicle(s)
2015 GT Premium Magnetic
Vehicle Showcase
1
[ame]
 

Taneras

Well-Known Member
Joined
Dec 8, 2013
Threads
14
Messages
1,020
Reaction score
158
Location
Ascension Parish, LA
Vehicle(s)
2015 Auto 3.55 GT
Interesting video. I'm pretty sure I know the guy he referenced at the end who trapped 122mph with the GT350 mani, if its the Scott I'm thinking of he also had catless SW longtubes and put down 454rwhp. So essentially its a full bolt-on coyote.

Sounds about like what I've heard so far. If you want to go all out, go with the CJ. If you're on a budget, go with the GT350. If you're not too big into drag racing stick with the stock manifold.

EDIT: All this PMAS talk has me wanting to try mine out. I'll probably ask Lund for a PMAS and JLT tune and test them out at the track once I get the GT350 manifold installed.
 

Sponsored

JustinReed

Well-Known Member
Joined
May 11, 2015
Threads
34
Messages
292
Reaction score
37
Location
Santee
Vehicle(s)
2017 Mustang GT
Interesting video. I'm pretty sure I know the guy he referenced at the end who trapped 122mph with the GT350 mani, if its the Scott I'm thinking of he also had catless SW longtubes and put down 454rwhp. So essentially its a full bolt-on coyote.

Sounds about like what I've heard so far. If you want to go all out, go with the CJ. If you're on a budget, go with the GT350. If you're not too big into drag racing stick with the stock manifold.

EDIT: All this PMAS talk has me wanting to try mine out. I'll probably ask Lund for a PMAS and JLT tune and test them out at the track once I get the GT350 manifold installed.
I'm with ya on the PMAS, I've seen more than a few mentions of the benefits of the PMAS, compared to other CAIs.
 

Dr. Norts

Banned
Banned
Banned
Joined
Nov 3, 2016
Threads
27
Messages
1,238
Reaction score
993
Location
Ontario, Canada
Vehicle(s)
2015 Race Red Mustang GT
Any more dyno graphs of stock IM vs GT350 IM both using CMCV??
 

jasonstang

Well-Known Member
Joined
Oct 23, 2015
Threads
23
Messages
5,571
Reaction score
1,307
Location
Denver, CO
Vehicle(s)
2017 GB GT/CS 6MT
I am gonna say depending on how you drive the car.
Just commuting, you are not gonna notice the added top end power.
 

DB83

Granny Shifter
Joined
May 4, 2014
Threads
77
Messages
736
Reaction score
164
Location
Spain
Vehicle(s)
2017 Mustang GT
Bear in mind the guy on the video is talking exclusively about drag racing, where only top end matters.
 

CEHollier

Well-Known Member
Joined
Sep 6, 2015
Threads
81
Messages
1,570
Reaction score
707
Location
Prairieville, La.
First Name
Charles
Vehicle(s)
2015 GT Premium Magnetic
Vehicle Showcase
1
Bear in mind the guy on the video is talking exclusively about drag racing, where only top end matters.
Yes. Drivability is important to me. I think swapping the GT350 manifold. Keeping the stock TB, swapping LU47 injectors, and retuning the Lund flex tune for me should meet the best of both worlds.
 

Sponsored
OP
OP
Bluemustang

Bluemustang

Well-Known Member
Joined
Nov 6, 2015
Threads
151
Messages
3,969
Reaction score
2,348
Location
Maryland
First Name
Ryan
Vehicle(s)
2015 Mustang Base GT
I'm thinking maybe it is not worth it for me. I daily drive my Mustang and like to rev it out but I don't drag race. Will be tracking it but not often.

All this talk about the PMAS is intriguing me though. I wonder if there are any gains to be had over the JLT.
 

WildHorse

N/A or GO HOME
Joined
Jun 28, 2017
Threads
270
Messages
10,297
Reaction score
8,350
Location
Home World: CLASSIFIED
First Name
Puddintane
Vehicle(s)
'17 S550
Vehicle Showcase
1
All this talk about the PMAS is intriguing me though. I wonder if there are any gains to be had over the JLT.
I bet gains over the JLT will be zero.
 

wildcatgoal

@sirboom_photography
Joined
Feb 8, 2016
Threads
76
Messages
6,589
Reaction score
2,512
Location
USA
Vehicle(s)
TBD
It has already been shown that the JLT has a little more bottom end power, the PMAS offers a little more at the top and (compared to each other). The Steeda intake seems to offer gains (with a tune) over the entire curve which is what I'd care about. You can contact [MENTION=25806]SteedaTech[/MENTION] to discuss their testing. Yes, the Steeda intake will connect to the GT350 manifold with a cheap adapter - done it.
 

SteedaTech

Well-Known Member
Diamond Sponsor
Joined
Aug 8, 2016
Threads
71
Messages
2,079
Reaction score
1,624
Location
Pompano Beach, FL
Vehicle(s)
2016 Mustang Q750
Steeda GT 350 Dyno Run

Dyno run GT350 intake,T/B, long tube headers, Steeda tune, Steeda CAI with full exhaust. This rear wheel HP on Steeda's Dyno Jet.
dyno graph 20 car.webp
 

Dr.Pat

Well-Known Member
Joined
May 31, 2016
Threads
18
Messages
139
Reaction score
17
Location
Fort Myers, FL
Vehicle(s)
2017 Mustang GT
I had this same question. My 2017 GT is my DD...No track or drag racing (except for occassional stop light wars). I have an axleback exhaust, but not going to do headers, supercharger, or any other major power adder. I'm wondering if I'd really benefit from the GT350 IM. Thinking i should just do a CAI and tune, and call it a day
Sponsored

 
 








Top