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  • 1996 - 2004 SN95 Mustang -General/Talk-

2 valve vs 4 valve

  • Thread starter Thread starter bhuff30
  • Start date Start date Mar 23, 2009
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Gearbanger 101

Straight Outta Locash
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Mar 26, 2009
#41
  • Mar 26, 2009
  • #41
Easy folks (*cough...mogs*)...no need to blow a head gasket here. Its just a friendly debate.
 

LaserSVT

Got FB banned again for saying nards
Founding Member
Nov 29, 1999
9,390
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Mar 26, 2009
#42
  • Mar 26, 2009
  • #42
mogs01gt said:
What an intelligent post...
Click to expand...
I please to aim! ..... wait...
 
Reactions: Adieu
B

bboylobo

New Member
May 4, 2005
130
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0
Lancaster PA
Mar 26, 2009
#43
  • Mar 26, 2009
  • #43
so my 2v has more street potential than a 4v? And 4v will be a better bet if you want something like a race track car? thats interesting. theres a lot of good info flying in this argument, please keep arguing
 

mogs01gt

Founding Member
Jul 22, 2002
3,113
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119
Ohio
Mar 26, 2009
#44
  • Mar 26, 2009
  • #44
bboylobo said:
so my 2v has more street potential than a 4v? And 4v will be a better bet if you want something like a race track car? thats interesting. theres a lot of good info flying in this argument, please keep arguing
Click to expand...
That is a perfect assessment!
 

Stan Weiss

Member
Dec 8, 2006
347
2
16
Philadelphia, PA
Mar 26, 2009
#45
  • Mar 26, 2009
  • #45
bboylobo said:
so my 2v has more street potential than a 4v? And 4v will be a better bet if you want something like a race track car? thats interesting. theres a lot of good info flying in this argument, please keep arguing
Click to expand...

NO! That is not what I said. The 4v can make more HP but will not be as drive able. Some of us live in large city's and yes anything can be driven on the street. I drove my SBC with roller cam, and 5.86:1 rear on the street back in the '70s.
 

LaserSVT

Got FB banned again for saying nards
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#46
  • Mar 26, 2009
  • #46
What is the most power anyone has seen out of a 5 liter (or very close) N/A two valve? I am very curious as I haven't a clue. The most I have seen out of a bored over Teksid block with 03/04 Cobra heads N/A and 5 liter size was 471 hp, I would bet there is a higher one out there but that was a Sean Highland built one.
 
B

bboylobo

New Member
May 4, 2005
130
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0
Lancaster PA
Mar 26, 2009
#47
  • Mar 26, 2009
  • #47
Stan Weiss said:
NO! That is not what I said. The 4v can make more HP but will not be as drive able. Some of us live in large city's and yes anything can be driven on the street. I drove my SBC with roller cam, and 5.86:1 rear on the street back in the '70s.
Click to expand...

well i get the part that anything can be driven on the street but there are some rides out there that wouldnt make sense to drive everyday. i see alot of trailer queens at the track that wouldnt make sense to have sitting at a stoplight in the city.
 

bhuff30

Founding Member
Dec 11, 2001
6,037
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129
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Mar 26, 2009
#48
  • Mar 26, 2009
  • #48
That's not bad, but also keep in mind that basically stock, the 4v wins out. The 2v doesn't win out until you start with head porting, cams and more compression.

bboylobo said:
so my 2v has more street potential than a 4v? And 4v will be a better bet if you want something like a race track car? thats interesting. theres a lot of good info flying in this argument, please keep arguing
Click to expand...
 
C

CatmanJJ

Captain Tangnet
20+ Year Stangneter
Feb 5, 2002
4,379
1
68
Maryland
Mar 26, 2009
#49
  • Mar 26, 2009
  • #49
Well I'll let everybody know how mine turns out when I get her back.
 

mustang50v8

Member
Feb 4, 2003
548
3
18
847 Chicago Burbs
Mar 26, 2009
#50
  • Mar 26, 2009
  • #50
LaserSVT said:
What is the most power anyone has seen out of a 5 liter (or very close) N/A two valve? I am very curious as I haven't a clue. The most I have seen out of a bored over Teksid block with 03/04 Cobra heads N/A and 5 liter size was 471 hp, I would bet there is a higher one out there but that was a Sean Highland built one.
Click to expand...

what is natzy from SVTP running in his car? i know he is all NA but i dont remember his CI's or HP
 

LaserSVT

Got FB banned again for saying nards
Founding Member
Nov 29, 1999
9,390
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#51
  • Mar 26, 2009
  • #51
IDK, I am hardley ever on there.
 

billfisher

Active Member
Jul 17, 2005
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38
huntsville, AL
Mar 27, 2009
#52
  • Mar 27, 2009
  • #52
Stan Weiss said:
If you are building an all out race engine the 4 v setup will be better. But if you are building a daily driver performance engine you are better off going the 2v routine.

Bill your head port charges the same to do all that extra work that 4v's require? Double the amount of valve seats, valve bowls and a divider wall.
Click to expand...


touche` STAN.


oh and 322-330 cu.in 4v's making 500+ rwhp are common.(in racing circles)

and there are NO 400RWHP 2V'S IN THE ENTIRE WORLD.
 

billfisher

Active Member
Jul 17, 2005
1,296
4
38
huntsville, AL
Mar 27, 2009
#53
  • Mar 27, 2009
  • #53
322CI.....530+RW All Motor -Base Line-

--------------------------------------------------------------------------------

322CI (BB/STR), FR500 Intake, 03-up Heads, Cams, full exhaust base line tune did not even messed around with the timing tables @ 7500RPMs. Motor wanted (and still wants lots of fuel), added 2% fuel...gained 28RW, added 1%and she continued to gain.....we stopped the dyno since we were running out of fuel (on the tank and since we run 50/50 93-MS109) and we had to drive home about 30 minutes out...we did not want to risk it lol! This was with mild timing curve.

We belive she will make ~550-560RW when we finalize the tune and take her to 8000+RPMs, play with the plenum volume and 3" cat-back.

Power was on the way up very agressively by 7500RPMs, and we belive she will peak at ~8000RPMs.

Huge Kudos to John T @ Modular Performance for building another beast, as always his advice and builds deliver HUGE power and Don @ LaSota Racing who provided me with a killer base line tune!

Naz
__________________
1999 Mustang Cobra
All Motor!
Nazty Performance
Click to expand...

roughly 200rwhp more than a 2v.


i know this is apples to whatever, but its the 2v guys saying'my ported 2v will outpower a 4v', not me.


i started out as a die hard 5.0 guy, then a PI2v, then a 3v, and now a 4v. top of the food chain.
 

Gearbanger 101

Straight Outta Locash
20+ Year Stangneter
Aug 10, 2002
9,457
1,377
234
Ontario, Canada
Mar 27, 2009
#54
  • Mar 27, 2009
  • #54
mogs01gt said:
400hp in this current age is no problems for a 2v.
Click to expand...

Really....show me a N/A 400hp 2V. I have yet to see it?
 

1991notchbackLX

Active Member
Dec 25, 2007
1,483
47
48
New York
Mar 27, 2009
#55
  • Mar 27, 2009
  • #55
5.0L pushrod FTMFW... oh wait, i'm in the wrong section of this forum
 
T

TGJ

New Member
Mar 30, 2005
1,049
4
0
Mar 27, 2009
#56
  • Mar 27, 2009
  • #56
*Cough* The current fastest N/A 2V that broke KenB's N/A 1/4 mark made 434 RWHP.*/Cough* Granted it was a 5.0L Big-Bore but non the less it easily made 400 RWHP.
 

GroverDill

GoldMember
Founding Member
Aug 18, 1999
5,442
1,490
214
Demotte IN 46310
Mar 27, 2009
#57
  • Mar 27, 2009
  • #57
1991notchbackLX said:
5.0L pushrod FTMFW...
Click to expand...


Agree 100%
 

Gearbanger 101

Straight Outta Locash
20+ Year Stangneter
Aug 10, 2002
9,457
1,377
234
Ontario, Canada
Mar 27, 2009
#58
  • Mar 27, 2009
  • #58
TGJ said:
*Cough* The current fastest N/A 2V that broke KenB's N/A 1/4 mark made 434 RWHP.*/Cough* Granted it was a 5.0L Big-Bore but non the less it easily made 400 RWHP.
Click to expand...

Link
 
T

TGJ

New Member
Mar 30, 2005
1,049
4
0
Mar 27, 2009
#59
  • Mar 27, 2009
  • #59
Gearbanger 101 said:
Link
Click to expand...

Brian,

This car did this almost 3 years ago. A lot can change in 3 years. IE, that member's Modular Depot account is now considered a Guest account which you can't search posts by user name of guest accounts. The best I can do right now is someone 2.5 years ago mentioning how he achieved 428 RWHP.

ModularFords.com - View Single Post - 400rwhp NA?
 

LaserSVT

Got FB banned again for saying nards
Founding Member
Nov 29, 1999
9,390
3,536
233
Mar 27, 2009
#60
  • Mar 27, 2009
  • #60
TGJ said:
*Cough* The current fastest N/A 2V that broke KenB's N/A 1/4 mark made 434 RWHP.*/Cough* Granted it was a 5.0L Big-Bore but non the less it easily made 400 RWHP.
Click to expand...
Ok, at 434 rwhp and knowing that 471 exists for the 4V then you see the 4V makes more power. Being the block is the same then the difference must be the heads. So.............. 4V>2V
Thanks for the help in proving my point
 
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