Tuning iam looking for a little advice

[J333EVO]

OK we do have a different engine (1.4 16V) but on our Sei which started life as an MPi we use a SuperSprint s/s manifold and have a CAT fitted in the recess that on the SPi models the cat sits in.

All you need to do is then get a lambda boss welded on after the CAT and extend the wires on the lambda its only got 3 wires IIRC.

I know that with your position you're saying its difficult to get something made, but there must be somewhere, even a Powerflow type place within 50miles that can do it.

You buy manifold and get a CAT, either a 2nd hand Cento SPi CAT, though be careful I've seen them collapse inside and be near impossible to get any airflow through meaning strangled car. Or a free flowing one, Renaultsport Clio 182's have a 200cell CAT as standard and many are decatted so they pop up cheap. Though not as often anymore as all forms of motorsport now in UK need a CAT fitted and I'm sure it will not be long before tracks start imposing CO2 as well as noise levels if it becomes cheap enough to check track side.

Its not going to be cheap, so you have to weigh up if its worth it or just get a CAT back exhaust.

 

[richydraper]

i also cant see an 1108 manifold being too different... knowing what little i do about gas flow.

iirc a conversation i had with a guy who builds custom SS Exhausts for Vauxhalls rekons 2inch (50mm) is suitable from cat back. so i would have guesed probably 1.5 inch from headers into either 2 2.5 inch collectors then into cat or hearders into a single 3.5/4 inch collector into cat. maybe even consider some kind of balancing for maximum scavanging effect between headers... i dont know its just a thought from what little i have picked up along the way

 

[cc1]

I've been looking for a CSC manifold for my Shumacher and found this.
Euro 3 is for MPI
http://eshop.superracetuning.eu/sto...rrency=GBP&cPath=142_147_210&products_id=1842

The average price for a CSC seems to be around £390 delivered which is way over priced.

I managed to get a Supersprint ordered today from Gazzella racing for £270 delivered. Will be here Tuesday. Gazzella said that there were only 2 in stock and I got the last one.

Also bought a 200 cell cat and weld on boss.

Will takes some pics when it's done.