This is topic Dyno Results from my new catback in forum Tech Talk at Northern California Ford Owners  .


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Posted by bunchmyfunky (Member # 360) on :
 
I put on a Magnapack system in place of my welded in Magnaflows and found my missing Torque.

Previous numbers before the catback swap were 259.8 rwhp and 288.7rwtq

New numbers with the Magnapack system
258.1rwhp and 300.5rwtq

There was no loss in low end tq it was up and from 3300rpm and up is were the big across the board gains are.
 

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Posted by HungryHippo (Member # 537) on :
 
wow, i never woulda thought. thats a pretty torquey 4.6

[ December 13, 2003, 03:44 PM: Message edited by: HungryHippo ]
 

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Posted by mustanggt5091 (Member # 444) on :
 
wow not bad
 

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Posted by FasterDamnit (Member # 442) on :
 
So, back together and ready for the track?
 

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Posted by Black94 5.0 (Member # 655) on :
 
So, were the welded in Magnaflows with the stock cat back 2.25" piping?....If you did go to the bigger 2.5" piping its even more amazing how you got more rwtq....

Nice numbers Mark!....
 

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Posted by J's DDLY SNK (Member # 2016) on :
 
Sweet! Those are some impressive #s. What did the Catback system cost you?
 

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Posted by bunchmyfunky (Member # 360) on :
 
Yup it's back together and ready for the track.

The magnaflows were welded into the stock piping 2.25

Now it goes from the 3inch collectors to the x which is 3inch at the collector and steps down to 2.50 at the back of the x and everything back is 2.50 with 3inch tips. I'm very happy with the results.
 

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Posted by bunchmyfunky (Member # 360) on :
 

quote:

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Originally posted by J's DDLY SNK:
Sweet! Those are some impressive #s. What did the Catback system cost you?

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I bought it new off of ebay for $335 shipped
 

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Posted by DropTopFox (Member # 1689) on :
 
and people say mufflers don't do anything for performance
 

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Posted by shade- (Member # 298) on :
 
as far as I know no muffler on the planet will swing TQ that much, it's got to be something else. Glad it went UP though
 

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Posted by 98slowhoe (Member # 895) on :
 
Good numbers Mark! Can't wait to see that thing Fly again!
 

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Posted by bunchmyfunky (Member # 360) on :
 

quote:

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Originally posted by shade-:
as far as I know no muffler on the planet will swing TQ that much, it's got to be something else. Glad it went UP though

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That was the only change made to the car. You have to look at my whole combo and going from the welded in magnaflows that they used reducers when they welded them in, so I never got the full benefit from my catback or LTs. Every car I looked at with my similar combo is putting down right around 260rwhp and 300rwtq
 

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Posted by 4.6 EATIN GM'S (Member # 1633) on :
 
nice #'s mark.hopefully u can pull some nite track times when u go.the car sounds good too
 

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Posted by bunchmyfunky (Member # 360) on :
 

quote:

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Originally posted by 4.6 EATIN GM'S:
nice #'s mark.hopefully u can pull some nite track times when u go.the car sounds good too

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quote:

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Originally posted by bunchmyfunky:

quote:

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Originally posted by 4.6 EATIN GM'S:
nice #'s mark.hopefully u can pull some nite track times when u go.the car sounds good too

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Thanks, Hopefully next time it wont be raining out and we can take it out for a spin.

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fo sho!!
maybe next time ill have mine with me too
 

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Posted by Chico Stang (Member # 801) on :
 
Why do you think you lose hp? I am assuming these were diff days, maybe even diff dynos and that could be why no major difference on HP, but I would have thought it would have atleast improved it a lil bit over the stock catback, rather then lose hp. What do you think?
 

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