No power in higher revs, Cat issue?

1. Furio-92 Saxperience Post Whore Joined: Oct 2009 Newcastle, Ashington Posts: 5086 Cammed and VTR'd Furio. Corsa c - Slammed & Euro

   #1 27th December 2011, 18:19

   I put a bigger cat on the car earlier this month for MOT, its alot bigger than the origional one i had on the car. Now the car has a severe lack of power, just doesnt seem to want to pull. Would this be because of the bigger cat? Thanks
2. MiniGibbo Saxperience Hardcore! Joined: Apr 2007 Bournemouth Posts: 15289 '04 VW Transporter.

   #2 27th December 2011, 18:24

   Id imagine if you havent fed it the cat will have died by now..
   
   Was the cat new, it may be shagged..
3. Furio-92 Saxperience Post Whore Joined: Oct 2009 Newcastle, Ashington Posts: 5086 Cammed and VTR'd Furio. Corsa c - Slammed & Euro

   #3 27th December 2011, 18:59

   Passed MOT, but its about twice the size of the original
4. MiniGibbo Saxperience Hardcore! Joined: Apr 2007 Bournemouth Posts: 15289 '04 VW Transporter.

   #4 27th December 2011, 19:20

   Then it's restricting air flow and strangling the car at high revs..
5. SaxoJamie Saxperience Forum Bum Joined: Jul 2007 Sussex Posts: 3891 2x 106 GTi

   #5 27th December 2011, 19:24

   the velocity of the exhaust gasses has slowed down because of the larger space it has to flow through this is why the car may appear to have slowed down. This is because it has lost too much backpressure.
6. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #6 27th December 2011, 19:29

   Quote:

   Originally Posted by Furio-92 Passed MOT, but its about twice the size of the original

   If it`s passed its mot then its done its job,so stick the original one back on mate.
7. Tontsy Saxperience Addict Joined: Oct 2008 Plymouth, Fiddling - under a two poster ramp Posts: 14064 Audi

   #7 27th December 2011, 19:31

   it has ticket...so put the origional or what you had on before - assume it was a Decat.
8. Tontsy Saxperience Addict Joined: Oct 2008 Plymouth, Fiddling - under a two poster ramp Posts: 14064 Audi

   #8 27th December 2011, 19:31

   it has ticket...so put the origional or what you had on before - assume it was a Decat.
9. Furio-92 Saxperience Post Whore Joined: Oct 2009 Newcastle, Ashington Posts: 5086 Cammed and VTR'd Furio. Corsa c - Slammed & Euro

   #9 27th December 2011, 19:31

   Thanks people, time for a 421