I have a older H1c from a 91 dodge 5.9 inline six. Ive looked all over for a adapter for the oil feed and I cant find ----!!!! Its a 5/8 inverted flare. Now im looking for somthing like a 5/8 inverted flare male to -3an male or 1/8 npt. The only thing I have found was a 5/8-18 to -6an, and thats way to big for a oil feed at 80psi. Let me know what you bitches find.

 

make a flat flange with 1/8npt threads and done. it's what i did

 

if my car was here i would take a pic. I took the turbo to a hydraulic shop and found an inverted flare brakeline fitting and a -4an (1/4 JIC i think?) fitting and they sort of fit together so i had dvst8r weld those bitches up.

 

you runnin that on the ls? I just bid on a h1c on ebay for mine

 

I thought JIC was like 37*and AN was 45* Dose it leak at all? I said ---- it and switched turbos, I have 3 to choose from....lol

I was going to but I ended up going with my To4e 40 trim with a .70 ar exhaust. I think it will be a better street turbo over the h1c, but it wont push much over 19-20 psi. SO it should put somewhere in the 350hp range witch is lower than I was wanting but as a daily it should be alot more fun. I had this turbo on my a6 and it was at full boost by 5k, so with my new deltas, and about another 250cc of displacement Im thinking I should have full boost by 3500. I maped it out on the compressor map and I will be in the dead center of the island at 5k.

 

No leaks.

 

The threads on the H1c are either a 12mm x 1.5 or 14mm x 1.5, depending on if it was from a non ic'd or ic'd truck.

 

re-tap to 1/4" npt on the 12mm and hope the fitting grabs

 

^
food for thought

 

I just took a die over a brass fitting, that was somewhat close and made my own.