I turbo'd my 2H which is a lot like a 3B I suppose. No fuel aneroid, just turned the fuel screw up a hair. My gas mileage actually increased quite a bit with the turbo, more complete burn as it was struggling before..
The cummins witha 9cm2 housing would probably work pretty well. If you wanted me to see what I could dig up I would be happy to. They yield a 3" exhaust which is nice, better than the 2.5" exhaust that all the gas turbos use (but you could easily adapt to 3" early for the same effect.
I have never owned a water cooled turbo other than what was OEM on these gasser Saabs I have owned. My previous gasser turbo Volvo was not water cooled. It makes for quicker shut down times but I do not think it is mandatory at all. All the Cummins turbos never came with a water cooled feature - to this day... On boost valvues. I ran about 12 psi max on my HJ60, 9 psi in a headwind or really pushing it on the flats and it worked very well. I think that is about right. They are indirect injection so I think it works a little better longevity wise to have a 'mild' turbo like 6-9psi when pushing it on the flats. It is still amazing the difference that low pressure makes...
So that is my $.02 on it. Here is a link to when I turboed my 2H using a junkyard turbo off a Mitsubishi 4.0L that was almost identical to a 2H, including even it's bolt pattern!
http://cruisers.shoumatoffmedia.com/hj60turbosetup.html
The cummins witha 9cm2 housing would probably work pretty well. If you wanted me to see what I could dig up I would be happy to. They yield a 3" exhaust which is nice, better than the 2.5" exhaust that all the gas turbos use (but you could easily adapt to 3" early for the same effect.
I have never owned a water cooled turbo other than what was OEM on these gasser Saabs I have owned. My previous gasser turbo Volvo was not water cooled. It makes for quicker shut down times but I do not think it is mandatory at all. All the Cummins turbos never came with a water cooled feature - to this day... On boost valvues. I ran about 12 psi max on my HJ60, 9 psi in a headwind or really pushing it on the flats and it worked very well. I think that is about right. They are indirect injection so I think it works a little better longevity wise to have a 'mild' turbo like 6-9psi when pushing it on the flats. It is still amazing the difference that low pressure makes...
So that is my $.02 on it. Here is a link to when I turboed my 2H using a junkyard turbo off a Mitsubishi 4.0L that was almost identical to a 2H, including even it's bolt pattern!
http://cruisers.shoumatoffmedia.com/hj60turbosetup.html
You can buy a brand new exhaust housing to whatever size you want for $150. H1C's are a dime a dozen. Something larger might be a little more. I bought my complete WH1C with a 12cm2 wastegated housing for $150 shipped. So not much. If you wanted to find one and were willing to pay the shipping I would be glad to help. There are tons of them on the turbodieselregister.com site (search the classifieds section) and on ebay. Also look for a HX55 which is HUGE and I believe also uses the same exhaust housing. Cummins turbo at ebay.com should yield some good results...
