4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

Headed to the dyno for the first time ever

Thread Tools
 
Search this Thread
 
Old 07-23-2011, 05:52 AM
  #1  
jeh4269
3rd Gear Member
Thread Starter
 
jeh4269's Avatar
 
Join Date: Jul 2010
Location: Pennsylvania
Posts: 704
Default Headed to the dyno for the first time ever

I have an appt at 9 am for the dyno.Just want to see what my car is making since I finished my 4v swap.I have a stock 96 cobra engine with a JLT CAI on it.My exhaust is BBK LT's,BBK catted X,and Flowmasters.I'm running it on the GT tune but the MAF and injectors are stock cobra items,so there shouldn't be any issues with them working together.Thought it would be neat to get some predictions on RWHP and RWTQ.So let's hear some numbers.I'm sorry but I don't know which brand of dyno he has.
jeh4269 is offline  
Old 07-23-2011, 05:56 AM
  #2  
Moonshine
5th Gear Member
 
Moonshine's Avatar
 
Join Date: Nov 2008
Location: Wa
Posts: 2,293
Default

Hmm...u need an SCT bruh. Im gonna say 280-85.
Moonshine is offline  
Old 07-23-2011, 06:08 AM
  #3  
jeh4269
3rd Gear Member
Thread Starter
 
jeh4269's Avatar
 
Join Date: Jul 2010
Location: Pennsylvania
Posts: 704
Default

Moon I would be very happy with those numbers.I'm heading out my door now.I'll post the numbers tonight.Got my fingers crossed.BTW SCT is on my to do list.
jeh4269 is offline  
Old 07-23-2011, 06:59 AM
  #4  
Moonshine
5th Gear Member
 
Moonshine's Avatar
 
Join Date: Nov 2008
Location: Wa
Posts: 2,293
Default

Good luck brah! I'm excited to see what those lt's do for ya. You may be my determining factor on them.

I put down 275/275 with Intake, tb, pulleys, tune, and an h pipe.

I have high hopes for ya!
Moonshine is offline  
Old 07-23-2011, 07:02 AM
  #5  
Moonshine
5th Gear Member
 
Moonshine's Avatar
 
Join Date: Nov 2008
Location: Wa
Posts: 2,293
Default

^^^ this is all assuming that GT tune doesn't f u up.
Moonshine is offline  
Old 07-23-2011, 07:26 AM
  #6  
Ryan86272
5th Gear Member
 
Ryan86272's Avatar
 
Join Date: Aug 2006
Location: same as you.
Posts: 3,287
Default

Good luck.. I would think the GT tune would mess up right?? Different motors? different tunes?

I would try to get a tune appointment.. Probably get you another 20whp..
Ryan86272 is offline  
Old 07-23-2011, 01:54 PM
  #7  
jeh4269
3rd Gear Member
Thread Starter
 
jeh4269's Avatar
 
Join Date: Jul 2010
Location: Pennsylvania
Posts: 704
Default

The numbers are dissappointing to me.Best run was 260rwhp and 261rwtq.I'm not very happy about them.I really need to get a tune.I'm prob leaving a good bit of hp on the table.My car is running very rich.AFR average was 11.9.My rey limiter shut down at 5150 rpm's which is surprisingly low to me.The hp/tq were steadily rising when the rev limiter kicked in.I'm hoping after a good tune to gain 30 rwhp.I think another 1200-1500 rpm's will def help and getting the afr will help too.Maybe 30rwhp is asking too much from a tune.Sorry I can't really help you Moon but once I get a tune I should have some better numbers for ya.
jeh4269 is offline  
Old 07-23-2011, 01:59 PM
  #8  
jeh4269
3rd Gear Member
Thread Starter
 
jeh4269's Avatar
 
Join Date: Jul 2010
Location: Pennsylvania
Posts: 704
Default

What are you guys with 4v's gaining from 5100 and up?When do your rev limiters kick in?My tach said 5400 and his dyno said 5150.He was getting his reading right from the crank itself and said it was very accurate.Just wondering how much it's costing me.
jeh4269 is offline  
Old 07-23-2011, 02:21 PM
  #9  
uberstang1
Chupacabra
 
uberstang1's Avatar
 
Join Date: Jul 2004
Location: wilkes-barre PA
Posts: 9,621
Default

With a tune and the proper RPM I think 300 is in sight, peak horsepower on my SCed is at about 6400 rpms. After inspection of my dyno sheet my AFR stays between 11.6 and 12.0.

Last edited by uberstang1; 07-23-2011 at 02:24 PM.
uberstang1 is offline  
Old 07-23-2011, 02:32 PM
  #10  
jeh4269
3rd Gear Member
Thread Starter
 
jeh4269's Avatar
 
Join Date: Jul 2010
Location: Pennsylvania
Posts: 704
Default

Is that low.I thought 12.8-14 was the proper range.What hp did yours gain from 5100-6400?
jeh4269 is offline  


Quick Reply: Headed to the dyno for the first time ever



All times are GMT -5. The time now is 09:40 AM.