Removed my secondary cats.

Car is definitely more responsive now that the massive flow reducing cats have gone, it actually feels like it's had a remap!

Mike
 
Kbs133 said:
Now that does sound nice. :thumbsup:

Just come to the shop in it, the "van route" is 6 miles - The Zed route is 16 :D

I love it - There is an underpass 1/4 mile from our shop, I went through it 6 times in both directions :evil:

Mike
 
Its difficult to tell from a vid, especially on a laptop with crap speakers but whats your impression in terms of noise. Is it much louder etc?
Bet your neighbours love you! :rofl:
 
MACK said:
Its difficult to tell from a vid, especially on a laptop with crap speakers but whats your impression in terms of noise. Is it much louder etc?
Bet your neighbours love you! :rofl:

Not much louder, but different tone, with more rasp, Jag F type noise :)

Mike
 
Ducklakeview said:
MACK said:
Its difficult to tell from a vid, especially on a laptop with crap speakers but whats your impression in terms of noise. Is it much louder etc?
Bet your neighbours love you! :rofl:

Not much louder, but different tone, with more rasp, Jag F type noise :)

Mike

Would that be the V6 or the V8 one?! :poke: :rofl:
 
MACK said:
Ducklakeview said:
MACK said:
Its difficult to tell from a vid, especially on a laptop with crap speakers but whats your impression in terms of noise. Is it much louder etc?
Bet your neighbours love you! :rofl:

Not much louder, but different tone, with more rasp, Jag F type noise :)

Mike

Would that be the V6 or the V8 one?! :poke: :rofl:

Probably the 6 :)

Mike
 
I consulted with my friend. She was surprised and disappointed that I am harbouring cats in my Zed:
 

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Alright Mike does it crakle and pop when you lift off the pedal . There's more pick up as well .
Peter
 
funksta said:
Alright Mike does it crakle and pop when you lift off the pedal . There's more pick up as well .
Peter

Yup. Feels like it's been remapped! Can't wait to do my vanos now and get back a bit more power.

Mike
 
Did you look into the sprint booster Mike . It totally changes the car , it feels way faster , and it changes the exhaust note when you adjust it . If I get a chance at the weekend I'll come over to yours when I'm having a hoon .
Peter
 
funksta said:
Did you look into the sprint booster Mike . It totally changes the car , it feels way faster , and it changes the exhaust note when you adjust it . If I get a chance at the weekend I'll come over to yours when I'm having a hoon .
Peter

:thumbsup:

Mike
 
One thing I have noticed is extra torque low down. I also noticed that blippling the throttle now well and truly rocks the car from side to side :evil:

Presumably as a result of the extra torque.

Mike
 
Ducklakeview said:
Ok, so rather than replace with straight pipe, I whipped them off and removed the heat shields before cutting a large hole in the top of the cat with the plasma and removing all of the insides.

Welded back up with stainless wire and reassembled the heat shields before refitting.

Just got to finish the last of the tig welds to the 4th joint, so blowing a little, but couldn't resist a quick vid for you [ref]Chris_D[/ref].

I think it sounds awesome and can't wait to get out in it later..

[youtube]ddAPZlrOl68[/youtube]

Mike

Sorry to be a pain.. but I am just curious what welding gear you have? Do you mean mig weld? As I know you have mig and you then say tig? Have you got both? Your workshop is getting as well stocked as mine :thumbsup:

Great work if you need any advice on tig ask it's not easy to learn but stick with it it really is better. I wish I had the plasma touch!! One day soon I hope :thumbsup:
 
I felt more torque myself. Obviously don't know how much by measuring it on the dyno but it's noticeable. I also felt a difference after your mod. You can instantly feel it after a remap, not hugely but it's there . It would be interesting to find out how much the increase is all together. My remap was done before the cat delete and your back box mod . They dynoed it at the time for their record's (Top Gear Stockport ) . I wasn't bothered enough to pay 40 quid . Anyway it was 242 bhp . I don't know what it was before. They say they can give you 20 bhp before you get it . I paid 200 quid . But the sprint booster makes the car feel so much more quicker.

Peter
 
Machine monkey said:
Sorry to be a pain.. but I am just curious what welding gear you have? Do you mean mig weld? As I know you have mig and you then say tig? Have you got both? Your workshop is getting as well stocked as mine :thumbsup:

Great work if you need any advice on tig ask it's not easy to learn but stick with it it really is better. I wish I had the plasma touch!! One day soon I hope :thumbsup:

Mat, I have a mig an ac/dc tig. I also bought a new plasma last week, it's a stonker, MUCH better than the Chinese one I had which I sold on.

This is the new one on a piece of scrap, I think 1.6mm thick;

[youtube]j2oLYNaG3UU[/youtube]

Mike
 
Ducklakeview said:
Machine monkey said:
Sorry to be a pain.. but I am just curious what welding gear you have? Do you mean mig weld? As I know you have mig and you then say tig? Have you got both? Your workshop is getting as well stocked as mine :thumbsup:

Great work if you need any advice on tig ask it's not easy to learn but stick with it it really is better. I wish I had the plasma touch!! One day soon I hope :thumbsup:

Mat, I have a mig an ac/dc tig. I also bought a new plasma last week, it's a stonker, MUCH better than the Chinese one I had which I sold on.

This is the new one on a piece of scrap, I think 1.6mm thick;

[youtube]j2oLYNaG3UU[/youtube]

Mike

How you getting on with TIG? If you need any advice and i can help just ask.

Mat
 
Sounds great. I've also thought my Coupe need to make a more scary noise. What's the point of the secondary CAT if the primary is doing the work? Is it that the Primary get's it to the level required by MOT and Secondary does a bit more?
 
Newbers said:
Sounds great. I've also thought my Coupe need to make a more scary noise. What's the point of the secondary CAT if the primary is doing the work? Is it that the Primary get's it to the level required by MOT and Secondary does a bit more?

Yup. Will still fly through mot with secondaries removed.

Mike
 
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