Exhaust - size matters
Exhaust - size matters
Author
Discussion

factbv

Original Poster:

358 posts

253 months

Sunday 16th April 2006
quotequote all
I have a pre-cat griff that is fitted with a 500 exhaust system. However, I like the look of the short tail pipe extensions / trim fitted to the pre-cat cars, sad I know. The outside diameters of the 500 tail pipes are 20.3 cm or 8 inches.

My question is: are the diameters of the pre-cat tail pipes the same as a 500. If that is the case, I would just need to try and source some pre-cat pipe extensions, although perhaps easier said than done.

Would a pre-cat griff owner be kind enough to measure the diameter of their tail pipes just before the extension piece!

Many thanks

antonyj

5,254 posts

310 months

Sunday 16th April 2006
quotequote all
8 inch diameter???

Are you talking about the tail pipes????

johno

8,593 posts

311 months

Sunday 16th April 2006
quotequote all
Circumference ...

factbv

Original Poster:

358 posts

253 months

Sunday 16th April 2006
quotequote all
yes sorry, outside circumference is 8".

antonyj

5,254 posts

310 months

Sunday 16th April 2006
quotequote all
I didnt realise there was a difference between the pipes on the early and later cars.

My precat, has a jp SS system and the circum' at the very end is 8", and the next circum along is 6.5"

Interested to see pics of yours

redboy

267 posts

302 months

Sunday 16th April 2006
quotequote all
factbv said:

Would a pre-cat griff owner be kind enough to measure the diameter of their tail pipes just before the extension piece!

Many thanks



Hi, they are also 8 inches before the extension piece!

cheers...

factbv

Original Poster:

358 posts

253 months

Sunday 16th April 2006
quotequote all
redboy said:
factbv said:

Would a pre-cat griff owner be kind enough to measure the diameter of their tail pipes just before the extension piece!

Many thanks



Hi, they are also 8 inches before the extension piece!

cheers...


That's good of you; thanks very much. It looks as if the only difference between the pre-cat and the 500 exhaust tail pipes is that the 500 ends are chromed / polished, whereas the pre-cat relies on the chrome extensions for the bling. However, the pre-cat extensions do make the pipes look that litle bit bigger, which I like, (they have to be of a greated diameter to slide over the same diameter pipe as you have just confirmed) and they also bring the ends a little further away from the body work. It may help keep some of the soot of the back, then again maybe not

Does anyone know who might have a set of pre-cat tail pipe extensions for sale? I suppose that I could have some made up?

I will try Bellview and Douglas Valley on Tuesday.

Thanks again.

antonyj

5,254 posts

310 months

Sunday 16th April 2006
quotequote all
redboy said:
factbv said:

Would a pre-cat griff owner be kind enough to measure the diameter of their tail pipes just before the extension piece!

Many thanks



Hi, they are also 8 inches before the extension piece!

cheers...


Where are you measuring?
Mine is about 6.5" before the final larger bore end piece

Ballistic Banana

14,706 posts

296 months

Sunday 16th April 2006
quotequote all
johno said:
Circumference ...


oi get back in that garage

BB

redboy

267 posts

302 months

Sunday 16th April 2006
quotequote all
antonyj said:
redboy said:
factbv said:

Would a pre-cat griff owner be kind enough to measure the diameter of their tail pipes just before the extension piece!

Many thanks



Hi, they are also 8 inches before the extension piece!

cheers...


Where are you measuring?
Mine is about 6.5" before the final larger bore end piece


Hi .... measuring just before the extension/end piece, i.e the pipe that the extension piece fits onto, your JP stainless system is not original so guess it must be a slightly different size?
cheers

griffter

4,143 posts

284 months

Sunday 16th April 2006
quotequote all
factbv said:

Does anyone know who might have a set of pre-cat tail pipe extensions for sale? I suppose that I could have some made up?



I took mine off because they look like cosmetic add-ons - I thought they look really cheap and tacky! However I don't really want to sell them I'm afraid so I can refit them for 'originality'...sorry. Quite happy to supply you with measurements though if you like so you can get some made; they're not very complicated. If you fail to find some through the usual channels, all you really want is a 'chrome slash-cut' tailpipe trim. I'm sure Halfords or similar would have something suitable.

factbv

Original Poster:

358 posts

253 months

Monday 17th April 2006
quotequote all
griffter said:
factbv said:

Does anyone know who might have a set of pre-cat tail pipe extensions for sale? I suppose that I could have some made up?



I took mine off because they look like cosmetic add-ons - I thought they look really cheap and tacky! However I don't really want to sell them I'm afraid so I can refit them for 'originality'...sorry. Quite happy to supply you with measurements though if you like so you can get some made; they're not very complicated. If you fail to find some through the usual channels, all you really want is a 'chrome slash-cut' tailpipe trim. I'm sure Halfords or similar would have something suitable.


Griffter

To be honest the reason why I would like a set is that I have the factory publicity BV Griff and having sourced a set of original five spoke AMIL wheels, the only differences externally, to the photos in the original sales brochures, is the oval side repeaters and the lack of exhaust trim. I have n't suddenly joined the Max Power crowd; just after originality - honest.

Thanks for the offer of some measurements, I will see how I get on with sourcing some originals.

Cheers

griffter

4,143 posts

284 months

Monday 17th April 2006
quotequote all
In that case you certainly would want originals, not Halfords approximations or even something fabricated I'd have thought. Drop me a line if you draw blanks everywhere else - I might be persuaded, after all it's a good home.

tweety

829 posts

288 months

Monday 17th April 2006
quotequote all
Hi factbv, I have the yellow 91 Motorshow Griff and have the extended tailpipes, its amazing how many people think they are add-ons, especially 500 owners. They do make the exhaust stick out noticeably more than a 500 and are an ar$e in the garage when you catch your ankle on them as you're walking round the back of the car. I have a set of the original side indicators spare in the garage somewhere that i took off my first pre-cat years ago, are you intending to change these back aswell? I think we chatted briefly at the Growl last year, good to hear you'ree getting the car how you want it.

Al.

factbv

Original Poster:

358 posts

253 months

Monday 17th April 2006
quotequote all
tweety said:
Hi factbv, I have the yellow 91 Motorshow Griff and have the extended tailpipes, its amazing how many people think they are add-ons, especially 500 owners. They do make the exhaust stick out noticeably more than a 500 and are an ar$e in the garage when you catch your ankle on them as you're walking round the back of the car. I have a set of the original side indicators spare in the garage somewhere that i took off my first pre-cat years ago, are you intending to change these back aswell? I think we chatted briefly at the Growl last year, good to hear you'ree getting the car how you want it.

Al.


Al

Good to hear from you, thanks for the note.

Yes I would be very interested in the side indicators, I had intended to change them when I have the front end resprayed (some fiberglass work is required as the holes are now just a little too big). I managed to get two originals from Bellview but they were slightly different sizes. I understand that the originals are Fiat Tipo ones so I ordered a set from Fiat. When they arrived they were similar but about 4mm deeper than the originals, so if you have a set in good condition, I would be very happy to buy them from you, if they are for sale.

Let me know if you find them.

Cheers

Peter

tweety

829 posts

288 months

Thursday 20th April 2006
quotequote all
Peter, I'll dig them out and check the condition and let you know.

Al.

si 4.3

122 posts

271 months

Friday 21st April 2006
quotequote all
Hi Pete I must agree with tweeny that a lot of people think the tailpipe extensions are add ons,I recently had two sections made in stainless steel from the rear box.I did not want the look of the 500s so they made an exact copy of my setup so I have the PRE CAT look but in highly polished stainless steel (one peace).The chrome tailpipes slide over the sections I had made so I can maintain the original as factory look,however I leave them off at the moment.
are you going to Chatsworth on Sat if so see you there.

Simon

factbv

Original Poster:

358 posts

253 months

Friday 21st April 2006
quotequote all
tweety said:
Peter, I'll dig them out and check the condition and let you know.

Al.


Al

Many thanks

Peter

factbv

Original Poster:

358 posts

253 months

Friday 21st April 2006
quotequote all
si 4.3 said:
Hi Pete I must agree with tweeny that a lot of people think the tailpipe extensions are add ons,I recently had two sections made in stainless steel from the rear box.I did not want the look of the 500s so they made an exact copy of my setup so I have the PRE CAT look but in highly polished stainless steel (one peace).The chrome tailpipes slide over the sections I had made so I can maintain the original as factory look,however I leave them off at the moment.
are you going to Chatsworth on Sat if so see you there.

Simon


Simon

Good to hear from you. Look forward to seeing your work on the exhaust.

Unfortunately, I won't be at Chatsworth but will be at the Growl, although I seem to recall from a previous thread that you can't make the Growl this year.

Incidentally, you have just cost me around £1200. After seeing your stunning pre-cat SS manifolds last year (automotive porn if ever there was such a thing) I have now had to buy a set myself! They're being fitted next week.

So obviously I have told Mrs factbv that this current round of completely unnecessary expenditure is your fault!! Seems to have worked!!

Cheers

Peter