|
Author
|
Topic: Peak power ?
|
Fastymz
Moderator Posts: 15522
From: Reno Nv USA MEM#1240
Registered: Apr 2001
|
posted 06-02-2004 03:35 PM
   
Any one have a guess where my motor should be maikng peak power. Because it sure does seem to like 3800-4300 rpm.  It's a 270h cam if that helps. I'm thinking I'm real close to peak torque at 3800 rpm ?
------------------
oddly obsessed with big scoops on little Mustangs 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics
IP: Logged |
JCQuinn@work
Gearhead Posts: 687
From: Lakewood, CO, USA
Registered: Jun 2001
|
posted 06-02-2004 03:40 PM
I don't remember what heads, manifold and carburetor you have.John
IP: Logged |
Fastymz
Moderator Posts: 15522
From: Reno Nv USA MEM#1240
Registered: Apr 2001
|
posted 06-02-2004 03:44 PM
RPM 2.02 heads, RPM intake, holley 600vs, 2200-2400 stall, and 3.40 gears. ------------------ oddly obsessed with big scoops on little Mustangs 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics [This message has been edited by Fastymz (edited 06-02-2004).]
IP: Logged |
JCQuinn@work
Gearhead Posts: 687
From: Lakewood, CO, USA
Registered: Jun 2001
|
posted 06-02-2004 03:59 PM
Check your mailbox.John
IP: Logged |
kcode
Gearhead Posts: 2822
From: alvaton,ky,usa Suburb of Bowling Green, M&M #79, MCA #29208
Registered: Jun 99
|
posted 06-02-2004 11:10 PM
Ron,
Not a real good comparison, but, when I had the 270H in the 347, torque peaked at 3200-4100. Hp peaked at 5700. Of course that is with 1.90" RPM heads. ------------------
Mike Golliver
MCA Gold Card Judge-Modifieds
65 Kcode coupe 347 stroker modified 5-speed MCA Retired
66 convertible-3 dueces and a 5-speed with a 289
89 T-Bird Super coupe
01 Mustang GT Convt
IP: Logged |
steve'66
Gearhead Posts: 7692
From: Sonoma,CA,USA
Registered: Mar 2000
|
posted 06-02-2004 11:24 PM
Mike,That should be close to Ron's combo, his may peak a little higher once he gets a good carb on top of it. SteveW
IP: Logged |
Fastymz
Moderator Posts: 15522
From: Reno Nv USA MEM#1240
Registered: Apr 2001
|
posted 06-03-2004 01:06 AM
You got mail too John thanks. Mike, thanks that was kinda of my guess. I've not had the motor over 4200 yet. But I can tell it really likes the 3500-4000 range. Steve, Yes bigger carb next on the must have list.  Why would the 2.02 heads make a difference in peak RPM range ? I'm starting to think the heads are alittle over kill for now. I think they would work better with a bigger cam and exhaust. ------------------ oddly obsessed with big scoops on little Mustangs 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics [This message has been edited by Fastymz (edited 06-03-2004).]
IP: Logged |
indyphil
Gearhead Posts: 1518
From: Peachtree City, G.A. USA
Registered: Jul 2002
|
posted 06-03-2004 08:39 AM
What you "feel" seat of the pants is torque not power. If (in a given gear) the car really picks up at around 4000 then thats peak torque. Peak power is important only when you consider your gear ratios and shift points. Its a little confusing but I would need to draw some diagrams to help explain...------------------
'68 coupe, '66 289 C code
engine, edel 600cfm carb, performer intake, dual exhaust http://www.geocities.com/ottouk_77/68mustang.htm
IP: Logged |
Fastymz
Moderator Posts: 15522
From: Reno Nv USA MEM#1240
Registered: Apr 2001
|
posted 06-03-2004 05:34 PM
Shift points, is it better to aim for peak HP or Torque ?
I know the best thing to do is take it to the track and see where it runs the best at. For now I'm just doing alittle bench racing. And it also gives me a good starting point. ------------------
oddly obsessed with big scoops on little Mustangs 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics
IP: Logged |
steve'66
Gearhead Posts: 7692
From: Sonoma,CA,USA
Registered: Mar 2000
|
posted 06-03-2004 06:06 PM
Ron,You want to launch at peak torque and shift slightly above peak h.p. Keeping the engine between those two peaks will run the quickest. Steve
IP: Logged |
69stanger
Journeyman Posts: 75
From: Northridge, CA
Registered: Aug 2002
|
posted 06-03-2004 07:22 PM
I too have the 270H cam and feel that it pulls best between 3.5-4.5K.
IP: Logged |
N266fords
Gearhead Posts: 1139
From: Spokane ,WA USA
Registered: Apr 2003
|
posted 06-03-2004 08:45 PM
torque is getting something to move
horsepower is the power need to keep moving it. torque is accelation hp is top speed (mph). I hope This helps and does not confuse you as I have that effect on people,lol
Bruce
IP: Logged |
Fastymz
Moderator Posts: 15522
From: Reno Nv USA MEM#1240
Registered: Apr 2001
|
posted 06-03-2004 09:28 PM
Thanks that was helpful and makes good sense. ------------------
oddly obsessed with big scoops on little Mustangs 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics
IP: Logged |
Mustangsandmore Forums
UBBFriend: Email This Page to Someone! 
