Dynamometer Results & Comparisons Dyno Records | Dyno Discussion | Dyno Wars

Forged 347, Trex, and Heads = 402rwhp??????

Thread Tools
 
Search this Thread
 
Old 10-24-2006, 09:51 AM
  #21  
TECH Junkie
iTrader: (10)
 
GrannySShifting's Avatar
 
Join Date: Nov 2001
Location: Glen Burnie, Md
Posts: 3,944
Received 20 Likes on 13 Posts

Default

Leak Down!
Old 10-24-2006, 12:11 PM
  #22  
TECH Fanatic
iTrader: (7)
 
moeZ28's Avatar
 
Join Date: Dec 2003
Location: ashland, ky
Posts: 1,022
Likes: 0
Received 1 Like on 1 Post

Default

I have a very similar setup to what you have and my car put down 453rwhp with only 500 - 600 miles on it. Mine didnt smoke any from initial startup to present, even while the rings seated. I used non-synthetic Castrol 5w30 motor oil for the first 1,000 miles. My car also throws a TPS code, and this is gonna be normal for the setup. It has to do with the amount of vaccuum your car is making at idle, and at low rpm cruising. My car at idle only pulls 78 to 80 kpa of vaccuum, whereas a stock car pulls, i think, around 50 kpa. HP Tuners, if you have this, makes a Speed Density Enhanced upgrade for our cars that lets the fueling be read off of the TPS sensor instead of the vaccuum which will help some of your issues. Getting ready to upgrade mine in the next couple of days.
Old 10-26-2006, 04:18 PM
  #23  
TECH Apprentice
Thread Starter
 
ws.6kid's Avatar
 
Join Date: Jan 2004
Location: San Antonio, Texas
Posts: 380
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by moeZ28
I have a very similar setup to what you have and my car put down 453rwhp with only 500 - 600 miles on it. Mine didnt smoke any from initial startup to present, even while the rings seated. I used non-synthetic Castrol 5w30 motor oil for the first 1,000 miles. My car also throws a TPS code, and this is gonna be normal for the setup. It has to do with the amount of vaccuum your car is making at idle, and at low rpm cruising. My car at idle only pulls 78 to 80 kpa of vaccuum, whereas a stock car pulls, i think, around 50 kpa. HP Tuners, if you have this, makes a Speed Density Enhanced upgrade for our cars that lets the fueling be read off of the TPS sensor instead of the vaccuum which will help some of your issues. Getting ready to upgrade mine in the next couple of days.
Do you still have the stock PCV system? or did you delete it?
Old 10-27-2006, 07:58 PM
  #24  
TECH Junkie
iTrader: (3)
 
cantdrv65's Avatar
 
Join Date: Nov 2001
Location: TEXASS
Posts: 3,202
Likes: 0
Received 0 Likes on 0 Posts

Post

i cant believe not one person has told you this! FIX the ******* problem with the O2s etc and get the car tuned FIRST and FOREMOST before tearing into the engine! A bad O2 sensor or really FUBARd tune could easily cost you 50rwhp... Get those items fixed first and the A/F ratio right BEFORE tearing into the engine and chasing around ring problems. This could easily solve your entire problem, the rings may still seat fine once they are not being washed down with the rich A/F mixture.
Old 10-28-2006, 07:25 AM
  #25  
9 Second Club
iTrader: (17)
 
JMBLOWNWS6's Avatar
 
Join Date: Nov 2002
Location: New Braunfels ,Tx
Posts: 4,997
Likes: 0
Received 0 Likes on 0 Posts

Default

First off you need to use a wideband for the car. Second do a compression test. Find out the leakdown and go from there.
Old 10-28-2006, 09:13 AM
  #26  
TECH Junkie
iTrader: (2)
 
WKMCD's Avatar
 
Join Date: Mar 2005
Location: Northern VA
Posts: 3,416
Likes: 0
Received 2 Likes on 2 Posts

Default

Originally Posted by Slowhawk
From the brief decription it sounds like a problem with the driver side.The TPS should not be throwing a code either.The gas in the oil is not normal.I would hate to say it but I would think the engine is gas washed.

Yup!
Old 10-29-2006, 05:29 PM
  #27  
TECH Apprentice
Thread Starter
 
ws.6kid's Avatar
 
Join Date: Jan 2004
Location: San Antonio, Texas
Posts: 380
Likes: 0
Received 0 Likes on 0 Posts
Default

Well I deleted my pcv system and it stopped smoking all together. But now my o2 sensors are all out of whack I guess because of the smoking oil going through the exhaust. It's throwing p0135 and p0155 heater circit malfunction. It seems quicker now, but I guess I wont find out till i replace the o2s and get it redynoed...
Old 10-29-2006, 10:06 PM
  #28  
TECH Resident
iTrader: (15)
 
Specialized's Avatar
 
Join Date: Jun 2006
Posts: 940
Likes: 0
Received 0 Likes on 0 Posts

Default

I think you should honestly take your car and do a 100% throrough leak-down test on it. Then you can go and fix your problems, your o2 are out of whack because youve been running pig rich.
Old 10-29-2006, 10:17 PM
  #29  
9 Second Club
iTrader: (17)
 
JMBLOWNWS6's Avatar
 
Join Date: Nov 2002
Location: New Braunfels ,Tx
Posts: 4,997
Likes: 0
Received 0 Likes on 0 Posts

Default

Who ever is tuning it should be able to tell you the AFR @ idle with the wideband. And you will also be able to pull your dipstick and smell it. There should be no fuel smell in the oil. If there is then you fuel washed the motor. Like everyone has said. Do the comp test. Better be to be safe than sorry!
Old 10-30-2006, 12:32 AM
  #30  
On The Tree
iTrader: (7)
 
seth webster's Avatar
 
Join Date: Jan 2005
Location: Greensboro NC
Posts: 175
Likes: 0
Received 0 Likes on 0 Posts
Default

I think your rings are probably fine.
The tune and codes may be causing your engine to flood.
What pistons do you have in shortblock??
a valve relief piston w/ stock head is gonna hurt your compression/power output
12bolt w/ 4.10s may also hurt you dyno #s.
Old 01-25-2007, 09:59 PM
  #31  
TECH Enthusiast
 
mahhddgtp's Avatar
 
Join Date: Mar 2004
Location: Loganville, GA
Posts: 604
Likes: 0
Received 0 Likes on 0 Posts

Default

Any update?
Old 01-25-2007, 10:30 PM
  #32  
TECH Addict
 
bad95killer's Avatar
 
Join Date: Jul 2002
Location: Somewhere I Belong
Posts: 2,906
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by mahhddgtp
Any update?
Ditto !!!

peace
Old 01-28-2007, 02:07 PM
  #33  
TECH Resident
iTrader: (28)
 
santiago's Avatar
 
Join Date: Sep 2004
Location: norcal
Posts: 987
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by ws.6kid
Well I deleted my pcv system and it stopped smoking all together. But now my o2 sensors are all out of whack I guess because of the smoking oil going through the exhaust. It's throwing p0135 and p0155 heater circit malfunction. It seems quicker now, but I guess I wont find out till i replace the o2s and get it redynoed...
my tuner just deleted my 02 sensors all together.
Old 01-28-2007, 03:58 PM
  #34  
TECH Apprentice
 
Ksett's Avatar
 
Join Date: Sep 2005
Posts: 339
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by ws.6kid
This does not make any sense, I have done a TON of research before starting my motor up and 50% of the people say to run the car easy for 500 miles, don't go past 4500 rpm, then after 500 miles let it rip,with oil changes periodically.

The other 50% say it is necessary to run the motor hard with in the first 20 mins as there is a small window of opportunity to get the rings to sit.

So if there is a chance my rings could seal which should I do to by all means to make this happen? Would it be a good idea to try lucas oil stabilizer or some other kind of "stop smoke" oil additive, which cause bad rings to supposedly seal????
I seated my rings properly and didn't go over 4500 rpm's. However, this does not mean you putt around and make sure you don't bring it up past 4500. What you need to do is apply as much load on the motor as possible without going over 4500. This means you need to be constantly rowing through 1st, 2nd, 3rd etc.. up to 4500 in each gear. Also, when cruising bring the rpm down and nail it up to 4500 over and over. Do not putt around babying the car or they won't seat.



Quick Reply: Forged 347, Trex, and Heads = 402rwhp??????



All times are GMT -5. The time now is 08:58 PM.