Ultima GTR ls7 engine 650hp

Ultima GTR ls7 engine 650hp

Author
Discussion

BILLGTR

Original Poster:

8 posts

208 months

Saturday 11th May
quotequote all
Failed twice IVA test on emissions too high. Anyone have a cure for this. Noted emissions an issue with Ls7 engines



rottenegg

716 posts

69 months

Saturday 11th May
quotequote all
Fit the biggest cat(s) you get in there.

Steve_D

13,794 posts

264 months

Sunday 12th May
quotequote all
Not a lot of info to go on there Bill.
Would help if you told everyone the specifications such as what ECU are you running, if GM then what fault codes are present, as already mentioned what cats are fitted. In your email you mention big cam and big overlap both of which are red flags for emissions.

Steve