• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

Got me some dyno numbers (PI headswap, cams)

  • Thread starter Thread starter AquamanCHS
  • Start date Start date Oct 11, 2004
  • 1
  • 2
Next
1 of 2 Next Last
A

AquamanCHS

New Member
Sep 17, 2003
122
0
0
N. VA
Oct 11, 2004
#1
  • Oct 11, 2004
  • #1
I went to the dyno today and got three runs in.. the best of my three runs yielded 265.4 RWHP and 299.7 RWTQ. Anyone else think these numbers are a little low of the mods in my sig? A/F was a flat line starting at 14 at 3k and went to 13 at 6k.
 

Blev

New Member
Aug 17, 2003
1,295
1
0
So. Cal. V-Town
Oct 11, 2004
#2
  • Oct 11, 2004
  • #2
AquamanCHS said:
I went to the dyno today and got three runs in.. the best of my three runs yielded 265.4 RWHP and 299.7 RWTQ. Anyone else think these numbers are a little low of the mods in my sig? A/F was a flat line starting at 14 at 3k and went to 13 at 6k.
Click to expand...
I would say those are pretty good considering they are not ported (P&P).
 
A

AquamanCHS

New Member
Sep 17, 2003
122
0
0
N. VA
Oct 11, 2004
#3
  • Oct 11, 2004
  • #3
Anyone know what else I can do to try to get closer to 300 N/A? Plenum/TB? Inlet tube and K&N? What's all that good for? 10? 15?
 

Blev

New Member
Aug 17, 2003
1,295
1
0
So. Cal. V-Town
Oct 11, 2004
#4
  • Oct 11, 2004
  • #4
AquamanCHS said:
Anyone know what else I can do to try to get closer to 300 N/A? Plenum/TB? Inlet tube and K&N? What's all that good for? 10? 15?
Click to expand...
With a K&N Drop in filter, Plenum/TB combo I would say 10 - 15 is pretty realistic. The Accufab setup was rated at 7.something HP and 7.something TQ. Alot with a good air filter I would say you would be helping your get more air to the heads.
 

03-s281

New Member
Jan 20, 2004
421
0
0
Stangville,TN
Oct 11, 2004
#5
  • Oct 11, 2004
  • #5
You should be higher than that with the compression of that motor.
I would do a PI intake swap. Your numbers should be around 275-280 now.
I'm at 263 SAE and you've got cams and LT's. Switch intakes and get a tune
and see where that puts you.
 

Blev

New Member
Aug 17, 2003
1,295
1
0
So. Cal. V-Town
Oct 11, 2004
#6
  • Oct 11, 2004
  • #6
03-s281 said:
You should be higher than that with the compression of that motor.
I would do a PI intake swap. Your numbers should be around 275-280 now.
I'm at 263 SAE and you've got cams and LT's. Switch intakes and get a tune
and see where that puts you.
Click to expand...

Maybe you should read the post again. He did the PI headswap, that incluces the PI intake. The average HP is around 245 - 255 after a headswap. So his numbers are pretty good
 
A

AquamanCHS

New Member
Sep 17, 2003
122
0
0
N. VA
Oct 11, 2004
#7
  • Oct 11, 2004
  • #7
Blev said:
Maybe you should read the post again. He did the PI headswap, that incluces the PI intake. The average HP is around 245 - 255 after a headswap. So his numbers are pretty good
Click to expand...

So my cams and full exhaust only got 10-20 hp? that seems pretty weak to me . What's the difference between SAE and STD? My numbers were STD
 
A

AquamanCHS

New Member
Sep 17, 2003
122
0
0
N. VA
Oct 11, 2004
#8
  • Oct 11, 2004
  • #8
Double post
 

Blev

New Member
Aug 17, 2003
1,295
1
0
So. Cal. V-Town
Oct 11, 2004
#9
  • Oct 11, 2004
  • #9
AquamanCHS said:
So my cams and full exhaust only got 10-20 hp? that seems pretty weak to me . What's the difference between SAE and STD? My numbers were STD
Click to expand...

Most people who do the headswap already have full exhaust and on average, you gain about 15 from cams. Don't be dissapointed, you pulled some good numbers. The only thing you could have done better would have been to have the heads P&P before the install. Try the plenum/tb combo and drop in filter and you'll see some more improvement.
 

Blev

New Member
Aug 17, 2003
1,295
1
0
So. Cal. V-Town
Oct 11, 2004
#10
  • Oct 11, 2004
  • #10
AquamanCHS said:
What about UD pullies? Are those good for the 10hp advertised at or is that BS? I'm just trying to see how I can manage 300, if at all.

Thanks for the suggestions so far, Blev... been real helpful
Click to expand...
The Steeda UD's are, IMO, the best out there. I'm not sure if you'll 10 ponies out of them but you can safely say 5 - 8 from what I have seen folks Dyno them for. If you want to hit that 300 mark, I hate to say it but your going to need a P&P. You might be able to nickle and dime it to death and get real close though.

Your at 265 now so if you go with the Accufab plenum/70mm TB, Drop in filter, UD's and bump your timing up, you may get pretty damn close. What is your timing at now?
 
A

AquamanCHS

New Member
Sep 17, 2003
122
0
0
N. VA
Oct 11, 2004
#11
  • Oct 11, 2004
  • #11
What about UD pullies? Are those good for the 10hp advertised at or is that BS? I'm just trying to see how I can manage 300, if at all.

Thanks for the suggestions so far, Blev... been real helpful
 

stang9gt

Founding Member
Dec 21, 2001
1,247
0
0
State College, Pa
Oct 11, 2004
#12
  • Oct 11, 2004
  • #12
Blev said:
I would say those are pretty good considering they are not ported (P&P).
Click to expand...

No P&P here, and I am closer to 300 now...
 
1

1ba96gt

New Member
Dec 10, 2002
181
0
0
Oct 12, 2004
#13
  • Oct 12, 2004
  • #13
Get a dyno tuned chip, the other bolt ons as mentioned by everyone else, and you'll get close. With cams that aren't the most agressive and no P&P job it will be difficult. You are going to have to pick up each little HP you can through small gains. It might be better just to throw a small shot of juice in it. Its kinda of cheating your way out, buts its a whole lot cheaper. Just something to think about.
 

GTn00b

New Member
May 25, 2004
175
0
0
Independence, MO
Oct 12, 2004
#14
  • Oct 12, 2004
  • #14
definately get a tune that should give you pretty good gains!!
 

madmatt

Ellis Juan sympathizer
Founding Member
Dec 28, 2002
465
0
16
Lexington, SC
Oct 12, 2004
#15
  • Oct 12, 2004
  • #15
See I thought it looked low too, but then realized that you havent gotten it tuned yet. That would and should be your FIRST priority with cams and the headswap. Well, thats what I would do anyway.
 

LI98GTStang

Founding Member
Jun 22, 2000
1,715
0
36
L.I., NY
Oct 12, 2004
#16
  • Oct 12, 2004
  • #16
My take is that you even though your numbers are excellent, to get to the magic 300, a more agressive cam than the Stage 1 will be needed. If you look at some of the guys that have made it there, agressive cams on an N/A car is one of the major pieces along with the full exhaust with LTs that you have already. Atleast you have the heads/PI intake swap done, so if you wanted to change the cams atleast you can use the AFM tool for a pretty easy job.
 

navarro98gt

Member
May 15, 2003
213
3
16
chicago, IL
Oct 12, 2004
#17
  • Oct 12, 2004
  • #17
Those numbers look decent for no porting or tune. I put down 278rwhp/292tq with mods in sig. Numbers are through an auto with no tune.
 

98GTVortech

New Member
Sep 30, 2003
242
0
0
Philadelphia
Oct 12, 2004
#18
  • Oct 12, 2004
  • #18
For the money you invested into your PI Headswap VT Stage I Cams and installation you could have picked up a cheap s/c on ebay and had it rebuild and seen number above 300. What i did and loving every minute. Just a thought.
 

navarro98gt

Member
May 15, 2003
213
3
16
chicago, IL
Oct 12, 2004
#19
  • Oct 12, 2004
  • #19
98GTVortech said:
For the money you invested into your PI Headswap VT Stage I Cams and installation you could have picked up a cheap s/c on ebay and had it rebuild and seen number above 300. What i did and loving every minute. Just a thought.
Click to expand...
What kind of numbers are you puting down and how much boost?
 

PacificStang46

Founding Member
Oct 27, 2002
73
0
0
In Your Blind Spot!
Oct 12, 2004
#20
  • Oct 12, 2004
  • #20
Those are pretty good numbers, mine only did 261/290 but with a 15.5 a/f, not enough fuel. now I have put in the 26# injectors and it feels 10 times as responsive...
 
  • 1
  • 2
Next
1 of 2 Next Last
You must log in or register to reply here.

Similar threads

Engine Intake Temperature Dyno Difference
  • FastDriver
  • Jul 2, 2015
  • Fox 5.0 Mustang Tech
Replies
10
Views
11K
Fox 5.0 Mustang Tech Jul 5, 2015
Gearbanger 101
Excellent Hagerty Article About The "kings Of The Street"
  • FoxMustangLvr
  • Sep 21, 2017
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
11
Views
4K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Sep 21, 2017
NIKwoaC
Timing Cover/harmonic Balancer Removal And Replacement
  • jrichker
  • May 28, 2017
  • Fox 5.0 Mustang Tech
Replies
1
Views
16K
Fox 5.0 Mustang Tech Jul 6, 2024
Noobz347
J
4.6l 3v Exhaust Only Dyno
  • Jcon
  • Jun 17, 2013
  • 2005 - 2009 Specific Tech
Replies
0
Views
2K
2005 - 2009 Specific Tech Jun 17, 2013
Jcon
J
What It Cost Me To Not Put An Ls In My Fox.
  • CarMichael Angelo
  • Feb 14, 2014
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
14
Views
3K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Feb 15, 2014
CarMichael Angelo
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?