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Hjs Cat For Sc

Started by Dan r , Jul 25 2020 07:41 AM

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15 replies to this topic

#1 Dan r

Super Duper Member

666 posts

Location:Brighton

Posted 25 July 2020 - 07:41 AM

Pretty sure the cat has had it again on my tullet fitted to my stage 2 sc vx.
I replaced it with a 100cell motorsport cat (can't remember the brand maybe red something?) about 4 years back but has recently failed with very high CO at idle, so assume this is the cause.

Ive checked the voltage of the first lambda sensor on opcom which is in the right area so assume this is ok.

I plan to replace with an HJS cat which i obviously should have done in the first place, but I'm not sure which one to get, does anyone know? May go for 200cell this time round as well.

Usually I'd get under the car and measure it but I barely get time for a sh*t at the moment with family life!

Thanks
Dan

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#2 chris_uk

I Fancy Joe

10,060 posts

Gender:Male
Location:Leeds UK

Posted 25 July 2020 - 08:38 PM

when i bought my 200 cell HJS cat a couple years ago it was Â£450.

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#3 Dan r

Super Duper Member

666 posts

Location:Brighton

Posted 26 July 2020 - 12:12 PM

Thanks Chris, any idea which one i need for the tullet 2.5 inch system as I've had a good search online and can't find the dimensions?

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#4 chris_uk

I Fancy Joe

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Gender:Male
Location:Leeds UK

Posted 26 July 2020 - 03:32 PM

Speak to Miltek as far as im aware they are the only UK supplier of the HJS cats.

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#5 Dan r

Super Duper Member

666 posts

Location:Brighton

Posted 26 July 2020 - 03:36 PM

Ok thanks Chris

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#6 FLD

WANNABE MY LOVER

13,717 posts

Gender:Male
Location:Near nantwich
Interests:Tugging my todger.

Posted 28 July 2020 - 07:44 AM

I bought mine from 2bular. It's 100 cell HKS but this was quite some time ago. Far better than the crap one tullet supplied.

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#7 smiley

Thetan level 15

10,427 posts

Gender:Male
Location:Netherlands

Posted 28 July 2020 - 07:57 AM

These are the markings on the hjs that Tullett welded in on my cat.

I have not fitted it yet, but i take it it fits.

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#8 Dan r

Super Duper Member

666 posts

Location:Brighton

Posted 28 July 2020 - 08:06 AM

Thanks smiley

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#9 smiley

Thetan level 15

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Gender:Male
Location:Netherlands

Posted 28 July 2020 - 08:52 AM

Only just noticed that this number gives nothing usefull in google.

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#10 Dan r

Super Duper Member

666 posts

Location:Brighton

Posted 28 July 2020 - 09:16 AM

No worries, thanks for checking.

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#11 Arno

Need to get Out More

1,233 posts

Gender:Male
Location:Netherlands

Posted 28 July 2020 - 11:03 AM

These are basically the 200CPI cats:

https://www.hjs-moto...-catalysts.html

Get a cat that's as big as possible for you to fit diameter-wise. 120 or 130mm preferred.

The 'HD' ones are heavy-duty and usually better for forced induction car exhaust temperatures.

I've been using the type 90950161 for several years on my N/A K20 Elise (200cpi, 120mm diameter, 300mm total length):

And ECE R103 marked for those that need it. I thought it was no longer available, but seems some still sell it:

https://dbilas-shop....00cpsi-oe60.5mm

Works fine and very good MOT exhaust gas values like 0.01% CO and such after a little warmup.

HJS ones are not cheap, but they are the 'real deal' as far as build quality and lifespan goes. Do make sure to buy from a reputable reseller as like many things these days there's a lot of counterfeit ones out there too..

Bye, Arno

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#12 Dan r

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666 posts

Location:Brighton

Posted 28 July 2020 - 11:07 AM

Great stuff, thank you.

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#13 Dan r

Super Duper Member

666 posts

Location:Brighton

Posted 14 September 2020 - 05:47 AM

To help anyone else looking into this I got hjs 90 95 0082 which is a very snug fit, <5mm between it and the silencer when fitted.

The hd one wasn't available at the moment and from what it says on the website the difference is just a different winding of the structure which enables a later euro 4 level.

Thanks for the help as always

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#14 Dan r

Super Duper Member

666 posts

Location:Brighton

Posted 14 September 2020 - 06:26 AM

.... <5mm between it and the silencer when fitted.
The hd one wasn't available at the moment, the website said the difference is the winding of the cell structure which enable a later euro 4 spec, no mention of higher durability.
Thanks again for the help

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#15 Dan r

Super Duper Member

666 posts

Location:Brighton

Posted 14 September 2020 - 06:30 AM

.... Less than 5mm between the silencer when fitted.
The hd one wasn't available at the moment, the website said the difference is just the winding of the cell structure which enables a euro 4 level, no mention of higher durability.

Thanks for the help.

Note.. if you put a greater than symbol in the text it doesn't load any further text in the post using tapa talk?

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