5.4 2v vs 4.6 2v

Forum for discussing engines in general, anything engine and not tuning-specific belongs here, such as power adder discussions (turbos, blowers, nitrous, meth / water injection, exhaust setups, etc...)

5.4 2v vs 4.6 2v

Unread postby redtopracer » Fri May 22, 2020 11:21 am

Welllll getting a new engine soon. Sticking with the 2v engines for cost and simplicity and I already have most of the power adding parts.


Read a whole lot on the mustang forums that the 5.4 2v is a waste of time because of the bore to stroke ratio and the issues people have with cylinder fill on NA versions


But since it was a mustang forum ive dumped a whole ton of salt on these opinions lol.


Anyway my thoughts were to run some intake adapter plates and throw my Ford Racing SVO intake manifold and hammered on long tubes on a stock PI 5.4 .


Obviously this engine would produce a TON more tq than a 4.6 variant with the same kit. But what would the hp look like? Would this thing fall flat at 4k?


Ultimately I would plan on throwing the lighting supercharger bits on it. Which is the other reason im looking at a 5.4 2v.
redtopracer
General Poster
 
Posts: 71
Joined: Sun Oct 27, 2019 10:02 pm
Name: james
Vehicle Information: 98 mustang gt 5spd
GUK2 box code
FRPP SVO intake manifold
57mm dual throttle bodies
manifold back exhaust
a strong desire for my car to idle correctly again

Re: 5.4 2v vs 4.6 2v

Unread postby decipha » Fri May 22, 2020 3:41 pm

I would take the 5.4 over the 4.6 any day of the week.

If your doing the swap you might as well toss on some trickflow (non R) heads to make it worthwhile. Thats an easy bolt on +150rwhp.

The stock heads are the restriction. It will make the same power on a 5.4 as a 4.6 but the 5.4 gives you more torque.

You want 11:1 compression n/a and 10:1 if going boosted.
User avatar
decipha
Tooner
 
Posts: 19118
Joined: Mon Jul 15, 2013 5:29 pm
Location: New Orleans, LA
Name: Michael Decipha Ponto
Vehicle Information: Supercoupin' x10
90 (4x 5spds) - Dante, Ruby, Daja, Ava
91 4r70w - Skarlett
92 (2x) 5spd & auto - Bianqa, Andrea
93 auto - Danika
94 5spd Rionda
95 auto Aisha
Vehicle 2 Information: Others:
00 Lincoln LS - Luanda
98 Camaro SS - Bounquisha
02 Harley F-150 - Sasasha
03 Marauder - DyShyKy
00 Explorer 5L - Bernyce
07 GMC 2500HD 6L - Veranafer
06 Chrysler 300 AWD


Return to Speed Shop & Engine Talk

Who is online

Users browsing this forum: No registered users and 0 guests