Engine choice
Author
Discussion

Rich.f

Original Poster:

73 posts

259 months

Thursday 21st July 2005
quotequote all
Hi all,
Having nearly finnished the car I have come across a majour problem, The enging I aquired is a 1996 therefore needing cat etc which is as I undrestand NOT the way to go. I have the offer of a recently reconditioned engine which has not been used but it is a 1985 engine, this would need emmssons testing during SVA and subsiquent MOT test's, I have been asured that the engine will have no problem passing. Basicly my question is - do many of you have engines fitted that are post 1975 therfore requiring the Emmissions test, if so do you have any problems and kind of BHP are you running.

I am in a bit of a delemer as to which way I should go and I am not sure if it is best to look for a engine built before 75.
Any advise is welcomed.

Rich.

G Man

4,053 posts

289 months

Thursday 21st July 2005
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Rich.F

The Ultima factory repackable exhaust can have sports cats installed ...

This is quite possible

G man

steve_D

13,802 posts

287 months

Thursday 21st July 2005
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YHM

Steve

Rich.f

Original Poster:

73 posts

259 months

Thursday 21st July 2005
quotequote all
My understanding is that if the engine is pre 92 the emmissions is relative to the engine year so a cat would not be reqiured?

Rich

Boosted LS1

21,200 posts

289 months

Thursday 21st July 2005
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My mot tester told me that all he needed to see was clean emmisions with or without the cat. Some new cars don't really need the cat. So if the engines a clean engine you may not need a cat either. I'd leap at an lsx because it's got minimal crevice area around the top ring lands and a really good ecu.

Boosted.

Rich.f

Original Poster:

73 posts

259 months

Friday 22nd July 2005
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Are you all running post 75?

Rich

adequatespeed

87 posts

304 months

Friday 22nd July 2005
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As I understand the SVA people don't have record of US engine numbers so you could just say its a pre 74 block!

pb3

1,064 posts

275 months

Friday 22nd July 2005
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Be careful here. I had a letter from AS stating that my engine block was a 1972 blah blah and the SVA tester would not except it as prove of age. What they require as proof is written conformation from the original engine manufacture, not just anybody like you engine builder. So what do they go by, well block casting number to date it. What that meant for me was that I had to pass 1980 emissions, why, because the casting number showed that the block could have been manufactured from something like 1967 to 1978, not sure exactly but the latter date fell past the cut off point and therefore put me at 1980 emissions.

The tester then spent ¾ of an hour tweaking my carbs to get it through! From an MOT standpoint I believe I will now just have a visual smoke check at idle.

mclark

582 posts

265 months

Friday 22nd July 2005
quotequote all
I've been told that the VOSA guys and the DVLA have used www.mortec.com in the past to grade the age of an engine.