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FLDak
Dodge Dakota
JOIN HERE
10/17/2003
14:47:55
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 Subject: Dyno Results after HO Cams installed
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Message:
With HO Cams:
HP 212.2@4400rpm
TQ 285.8@3400rpm
Previous Dyno before HO Cams:
HP 200.8@4200rpm
TQ 259.4@3700rpm
Peak gains are: 11.4HP and 26.4TQ.
Averaged gains between 3200rpm to 4700rpm are: 13.59HP and 28.63TQ
However when comparing the two charts at 3400rpm, the HO cams were making 26.3HP and 40.7TQ more at that particular rpm. Very noticable difference in the graphs also. I'm real pleased with the results, I'm just not sure if I want the HO Intake though.
Hope this helps someone if you are trying to decide if you should get the cams or not.
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Pittdawg
Dodge Dakota
JOIN HERE
10/17/2003
18:08:39
| RE: Dyno Results after HO Cams installed
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Message:
What other mods do you have?
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Demon Dakota
DakotaEnthusiast
10/17/2003
18:30:48
| RE: Dyno Results after HO Cams installed
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Message:
Definitely good gains...and you were wondering if they were really going to help :)~
True Dual exhaust and removed third cat
HO Cams & HO Intake
FASTMAN 70mm TB
Autolite 3923 Plugs
TPS @ .76 VDC
IAT Adjuster Mod
Custom tranny VB Mod
Demon long tube headers
Ported/polished heads w/ 1.92" Intake/1.60" Exhaust Valves
One dead stock LSD unit (POS...)
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Kowalski
Dodge Dakota
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10/18/2003
09:03:44
|  RE: Dyno Results after HO Cams installed
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Message:
Just that one mod will give you those kind of gains - very nice torque improvement.
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FLDak
Dodge Dakota
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10/20/2003
08:56:17
| RE: Dyno Results after HO Cams installed
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Pittdawg;
I forgot to list them earlier so here they are:
'02 Dakota SLT CC+, 4.7L, auto, 360 airintakez, TPS adj, Relocated IAT, Removed Clutch Fan, Removed 3rd Cat, Autolite 3923, Flowmaster 70 Series, 4.10s w/LSD, Fastman 68mm TB, ROE Controller. Robert Shaw 180 Tstat, Flex-a-lite ATC #31147.
Demon & Kowalski;
Thanks man, Just trying to decide if I need the HO intake now?
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Kowalski
Dodge Dakota
JOIN HERE
10/20/2003
16:20:55
| RE: Dyno Results after HO Cams installed
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Message:
I skipped it, sounds like it shifts the power band higher, I want the power down low.
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01Motorsport
Dodge Dakota
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10/20/2003
18:18:28
| RE: Dyno Results after HO Cams installed
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I'm glad someone else tried the Flowmaster 70, FLDak. I had one on my '92 5.2 and now my '01 4.7. Your improvement numbers compare favorably with KRC's cams.
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FLDak
Dodge Dakota
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10/21/2003
09:31:22
| RE: Dyno Results after HO Cams installed
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Message:
Kowalski; Thats exactly what I was thinking, I going to skip it also.
01Motorsport; I've been real pleased with mine, it's not obnoxiously loud but you know its there. Yeah, I would like to have those KRC 206s but the price is to steep for me right now, may be one day.
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01Motorsport
Dodge Dakota
JOIN HERE
9/29/2004
09:12:42
|  RE: Dyno Results after HO Cams installed
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Message:
There may be several of you who missed this post on dyno results of the HO cams swap. Most impressive are the huge hp/tq numbers at 3400 rpm: 26.3/40.7. This is with the ORIGINAL 4.7 intake manifold, not the 2003-up/HO intake. I kept the stock 2001 IM with my HO cams, to enjoy the low-end torque benefit. '01 4.7 5-spd 3:92; homebrew alloy air intake w/stock box K&N 6" Fernco; Flow 70 w/2 1/2" duals; true 68mm TB; Bosch 4118.
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Kowalski
GenIII
9/29/2004
15:57:50
| RE: Dyno Results after HO Cams installed
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Message:
Happy with the Bosch plugs ? Stock gap ? Time for me to do the plugs soon.
Lead, follow, or get out of the way
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01Motorsport
Dodge Dakota
JOIN HERE
10/01/2004
10:16:12
| RE: Dyno Results after HO Cams installed
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Message:
Hey, Kowalski! I've run Bosch Platinum for years. My old '92 5.2 ran the original 2-prong +2's until the +4's (4-prong) came along. I've used the +4's for about 35K now on my '01 4.7. No gap needed at all; just anti-sieze the threads and roll 'em in. What you will notice right away, compared to the stock Champions anyway, is easier starts and very smooth idle. I noticed a slight 1/2 gallon better MPG, but you can usually credit that to a normal plug change. One plus was the plug change interval. On my old 5.2, I would go 50K between changes. The plugs were in great condition even after that mileage. I can't swallow some of the negative platinum B.S. related to the 4.7 that used to appear on this board.
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Wal
Dodge Dakota
JOIN HERE
10/01/2004
11:26:41
| RE: Dyno Results after HO Cams installed
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Message:
Forgive my ignorance (I have a 318), is the 4.7 a DOHC motor? If so, then I have some other questions. If not, then they won't apply.
Thanks!
Wal
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Lurkin
Dodge Dakota
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10/01/2004
12:56:31
| RE: Dyno Results after HO Cams installed
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Message:
Wal, depends on your definition. According to my def'n, the 4.7 is not a DOHC.
But, it does have a single OH cam per cylinder bank.
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Figols
Dodge Dakota
JOIN HERE
10/01/2004
13:22:42
| RE: Dyno Results after HO Cams installed
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Message:
I haven't had the same luck with the Bosch plugs. I installed the +4's in my '00 4.7 QC at around 10K miles and after about 3K miles I started getting a missfire and/or an unstable idle. I replaced them with NGK V-powers(usually my first choice for any vehicle)and it never ran better. I still use the NGK's now at 75K miles. I've read that the 4.7L(along with other cars that have the same ignition system)doesn't like platinums.
In general though, I haven't had ANY luck with Bosch plugs lately. I had a Sunfire(commuter car)that required platinums and the Bosch plugs made the car run rough. I had the same problem with my Contour(also a commuter car). Both cars I replaced the Bosches with Autolight double platinums and smooth running was restored. What gives? Bosch used to make great plugs! I'm not the only one that has noticed this same problem with Bosch plugs lately.
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Figols
Dodge Dakota
JOIN HERE
10/01/2004
13:29:56
| RE: Dyno Results after HO Cams installed
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Message:
I haven't had the same luck with the Bosch plugs. I installed the +4's in my '00 4.7 QC at around 10K miles and after about 3K miles I started getting a missfire and/or an unstable idle. I replaced them with NGK V-powers(usually my first choice for any vehicle)and it never ran better. I still use the NGK's now at 75K miles. I've read that the 4.7L(along with other cars that have the same ignition system)doesn't like platinums.
In general though, I haven't had ANY luck with Bosch plugs lately. I had a Sunfire(commuter car)that required platinums and the Bosch plugs made the car run rough. I had the same problem with my Contour(also a commuter car). Both cars I replaced the Bosches with Autolight double platinums and smooth running was restored. What gives? Bosch used to make great plugs! I'm not the only one that has noticed this same problem with Bosch plugs lately.
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Wal
Dodge Dakota
JOIN HERE
10/01/2004
20:08:29
| RE: Dyno Results after HO Cams installed
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Message:
Thanks, ok Lurkin. That is SOHC. With DOHC motorcycle engines I have done intake cam swaps and left the exhaust alone, or done both and degreed differently, so that you preserve the low end and still get more top end. You don't get all of the top end power, but you don't miss it and you get to keep your low/mid. Sounds like it wouldn't apply here though; you'd need 4 cams to be DOHC.
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GraphiteDak
GenIII
10/02/2004
00:46:19
| RE: Dyno Results after HO Cams installed
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Message:
FLDak, how do you like them 4.10 gears? Does it really go through them gears now? I'm going to do them when I get a chance.
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FLDak
Dodge Dakota
JOIN HERE
10/03/2004
14:04:56
| RE: Dyno Results after HO Cams installed
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Message:
GraphiteDak,
Oh yeah!!
I would strongly recommend this mod. It accel a lot quicker than before and MPG did not suffer either.
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01Motorsport
Dodge Dakota
JOIN HERE
10/07/2004
10:28:15
| RE: Dyno Results after HO Cams installed
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Message:
FLDak, I for one, appreciate the dyno results you supplied. My Dak is a daily driver, and I am using the stock pre-HO intake manifold (like your 2002) with HO cams, so your results are particularly noteworthy in my case. We may even see a "retro-mod" someday, where the owners of heavier 4.7 Daks seeking low-end torque revert to the 2000-2002 IM instead of the "stock" HO 2003-up IM. So...thanks!
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jayb
Dodge Dakota
JOIN HERE
8/23/2005
23:30:32
| RE: Dyno Results after HO Cams installed
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Message:
hey those dyno number look lower than stock. 212hp is not good? what am i missing here.
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4.7onNO2
Dodge Dakota
JOIN HERE
8/24/2005
00:13:29
| RE: Dyno Results after HO Cams installed
IP: Logged
Message:
212 is good hp. You are prob compairing flywheel hp to
rear wheel hp which stock is around 190 give or take 5
hp. Dodge rates it with flywheel hp which is like 230 or
235.
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