Griff new owner
Griff new owner
Author
Discussion

edgun

Original Poster:

396 posts

160 months

Hello everyone,back in the Tvr fold having owned two wedges in the very distant past.had the griff about a month,and working through bits and bobs that need doing.now this is probably a daft question does my griff 500hc have cats?previous owner says no it doesn’t,car registered may 1994.
Thanks for replies in advance.

frontfloater

426 posts

166 months

Lovely looking car, great colour combination.

Belle427

11,447 posts

257 months

Show us a photo of the engine bay, it would have had one as standard so the previous owner/s must have removed it or fitted a decat y piece.
Will be an issue come Mot time sadly if its gone, spares are available though.

lancepar

1,126 posts

196 months

If it's precat it will look something like this, just big pipes and best sound.

This is a 400-250bhp



bounce

sixor8

8,018 posts

292 months

If you have the collector that is connected to the manifolds with clips instead of bolts, it will be a catalyst car. I would expect it to be if it is a 1994 car. There was a crossover period in early 1993 where some manufacturers had cars still to be registered, but as a low volume seller, TVR made all the 500s with cats, unless it was an export repatriated?

There's a chance someone may have gutted it to remove the honeycomb catalyst internals and there are also pre-cats inside the manifold to reduce emissions when the engine is cold. Even more of these have been removed. Emission tests are done on a warm engine so it should pass if the main cat is still in place. Some cars can be run lean enough to pass the test without a cat fitted, but unlikely in this case! There are the cliché 'friendly' MoT testers of course. whistle


edgun

Original Poster:

396 posts

160 months

Thanks everyone looks like it has cats,big y piece with clamps and not bolts,last owner for 13 years was a doctor and not really a hands on guy,anything needed done was put into a garage.

edgun

Original Poster:

396 posts

160 months

Ok,where exactly are the precats?difficult job to delete them?

sixor8

8,018 posts

292 months

The precats are inside the exhaust manifolds. There are several threads on here regarding them no doubt, here's one I found with a search. It's not easy and they'd have to come off the car to do it:

https://www.pistonheads.com/gassing/topic.asp?t=16...