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Track car cat question 

 

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 Post subject: Track car cat question
Posted: Sun Jul 15, 2007 11:19 pm 
Getting Side Ways
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Hey lads do the 6cil saloon race cars need cat in there exhaust? how bad does the cat hinder the exhaust flow?


cheers

Molloy.

 

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Posted: Mon Jul 16, 2007 12:36 am 
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if your talking about a track day car, that you can drive home, the million dollar question is do YOU want it to pass emissions if the need arises?

putting a cat on a car will almost always restrict it in some form.

one thing cats dont like a whole lot of is excess heat or abuse. have heard of some cats colapsing on the inside, clogging, melting, glowing red. the reason they arn't at the end of the exhaust is because the need heat to do they're 'job' but the question the designer has is 'the closer to the engine it is, the quicker it gets to temp, too close it wears out faster.'

if its saloon car racing, look in to the rules more, i dare say they wouldn't even run one. unless you want it road legal

 

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Posted: Mon Jul 16, 2007 7:46 am 
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cheers thanks mate.

 

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Mods going on: Nizpro springs, bosch 040 pump + Walbro gss341, 600cc injectors, PWR transcooler, 20% Underdrives, 15psi Actuator, Kingspring SSL's, 15psi tune.....More coming

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Posted: Tue Jul 17, 2007 12:33 am 
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no probs

whats the project?

 

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Posted: Tue Jul 17, 2007 8:49 am 
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No project me and a mate where having a chat about saloon cars and the cat came up

 

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SS Inductions CAI, K&N Filters, M-spec FMC, Turbosmart BOV, 8psi capa tune, X-force cat.

Mods going on: Nizpro springs, bosch 040 pump + Walbro gss341, 600cc injectors, PWR transcooler, 20% Underdrives, 15psi Actuator, Kingspring SSL's, 15psi tune.....More coming

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Posted: Tue Jul 17, 2007 9:01 pm 
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well the science says they work.

whether they do a whole lot or just hinder zorst flow is another thing. and as for a $200 odd, high flow cat, for an extra kw or something, id spend the money on the cam first. or drill a 10mm hole in the honeycomb structure

 

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Is it about sex? The engine in my car? Or a cure for cancer?
No?

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