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Hi guys, quick question, I just bought a set of extractors last week, and I can hardly feel the difference. Iv'e got 2 1/2 redback exhaust with hiflow cat and obviously extractors, there the 4499 series, any help would be appreciated
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| 94FUTURA |
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4499s will give you more high end power, when i got mine i could definantly feel the difference.
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| MYLO_XR6 |
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hmmm this is begining to sound so repetative, whats that? you got a 2 1/2" exhaust? THERES THE PROBLEM, youre getting more upper end torque when ur car would probably never hit 6000rpm, whats the point of that? More bottom end = good back pressure = 2 1/4" INNER diameter system. THEN youll notice a difference.
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| smiley235 |
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mylo, do you have headers and zorst on your BA and if so, did it make a difference at low end for you as my Ba is too slow off the line
_________________ 178.3 rwkw
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| MYLO_XR6 |
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mines s**t off the line too, they all are, nah its stock, i just put on 18's and that the only mod im allowed to do, im thinking of "gutting" the muffler(s).
Anyway, i know a guy that has 2 1/4 exhaust, it made a difference in his falcon
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| fnp |
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Age: 38 Posts: 4401 Joined: 25th Mar 2005 Ride: BA XT, BA XR6T, ED Ghia 5.0 Location: Perth |
Mine's got a set of pacies and a 2.5" zorst, helps mostly with the top end, it's still a slug off the line. Can't help but think a diff swap to a 3.7 or something would liven it up a lot.
_________________ What's the difference between a Holden and a sheep? It's less embarrasing getting out of the back of a sheep.. |
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| smiley235 |
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Yeh, well im with just cars and have unlimited mods. I was thinking of getting the 3.45 dif to see if it makes a difference but would rather get the exhaust system if it were better than the dif. With low end power, i would be loving it as I have no complaints at all with the top end power as it canes at 4500+.
_________________ 178.3 rwkw
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| Steady ED |
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MYLO_XR6 wrote: hmmm this is begining to sound so repetative, whats that? you got a 2 1/2" exhaust? THERES THE PROBLEM, youre getting more upper end torque when ur car would probably never hit 6000rpm, whats the point of that? More bottom end = good back pressure = 2 1/4" INNER diameter system. THEN youll notice a difference.
Nobody makes off the shelf MANDREL BENT 2.25" exhausts for EA-EL! And 2.25" press bent is stock 
_________________ ED XR8 Sprint - S-Trim, V500, 249rwkw |
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| spud69 |
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i noticed a huge difference when i put my extractors on.
they are x-force stainless steel with a very long primary and cone over pipe like pacemakers. i noticed alot more torque from 2500rpm onwards. |
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| Steady ED |
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spud69 wrote: i noticed a huge difference when i put my extractors on.
they are x-force stainless steel with a very long primary and cone over pipe like pacemakers. i noticed alot more torque from 2500rpm onwards. I'm running the 'X-Force' stainless as well. Definately more top end in them, complements my cam but sucks out my bottom end 
_________________ ED XR8 Sprint - S-Trim, V500, 249rwkw |
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| leezels |
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so if the stock system is 2.25" why wouldnt you just put headers straight onto that! i dunno, seems like 2.5" is the go and i wouldnt wanna waste my money trialing 2.25"
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| Southy |
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you should be getting the revs up alot quiker than before after getting that setup.
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| blackjack_original |
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Posts: 3516 Joined: 8th Nov 2004 |
[self-deleted]
Last edited by blackjack_original on Fri Jun 06, 2014 9:04 pm, edited 1 time in total. |
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| LG |
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4499s are designed to give you better bottom end, not top end.
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| Steady ED |
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blackjack_original wrote: Steady ED wrote: MYLO_XR6 wrote: hmmm this is begining to sound so repetative, whats that? you got a 2 1/2" exhaust? THERES THE PROBLEM, youre getting more upper end torque when ur car would probably never hit 6000rpm, whats the point of that? More bottom end = good back pressure = 2 1/4" INNER diameter system. THEN youll notice a difference. Nobody makes off the shelf MANDREL BENT 2.25" exhausts for EA-EL! And 2.25" press bent is stock Not true. I dunno who, but someone does. I know this, because when i went to the exhaust shop the guy showed me a catalogue and in it it had a picture and written underneath was "available in 2,1/4 and 2,1/2" My bad! Still think 2.25" is too small for a 4l. Plus most extractors have 2.5" flanges on them...
_________________ ED XR8 Sprint - S-Trim, V500, 249rwkw |
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