Custom Tubular Manifolds

[jc..]

don't buy manifolds from anyone on Ebay! I have bought two now and they are utter pants, the stainless is of questionable quality, the welding is shocking, they are not back purged and the overall design, fitment and preparation of the tubes before welding has been very poor. There is a reason they are on eBay.
If you want Custom...get custom. I am sourcing parts for a tubular, equal length, long runner manifold now.
I am sourcing the material myself, have had flanges made and will provide the welder with all the info he needs.
Flanges cost £100, (more than they should), pipework will run to about £80-100, Welding and preparation should be no more that £200.
Ask people who know and find a welder who does this for a living, plenty around, go see his (or her) work and do some research.

Mine will be in Sch10 316 (marine grade) stainless with 10mm laser cut flanges. plenty of room for skimming for ultra flat surfaces after welding.
You can get them ceramic coated afterwards if you want.

learn something about it, save some money and get the smug factor that you have got better manifolds.

[ZeroK66]

I thought they were only 1200 coated... you can get em non-coated for about 8-900 I think? RS Fabrications charge 1800... 1200 isnt a bad price really. Check out sites in the states like ASP APR etc... they must do kits. Dollar-Pound is not bad.

[tartan_rob]

Or get yourself on a titanium welding night school course and buy some second hand F1 jobs, cut off what is not required and use the spare to mount the turbo's. That way you reduce weight as well....

Rob

[tartan_rob]

Or get yourself on a titanium welding night school course and buy some second hand F1 jobs, cut off what is not required and use the spare to mount the turbo's. That way you reduce weight as well....

Rob

[ZeroK66]

Not quite that easy... need to get the turbo orientation exactly right else you have downpipes that dont fit anymore or knocking on the body... nightmare.

[dummi]

hence buy some made for the job like mine )