Rebuilding 3sge BEAMS + dry sump

[Celica RA45]

ti valves dont like 14.65mm of lift either and if you miss a gear and buzz the motor its just a granade waiting to go off ,been there done that

im using steel valves from the states 36mm on inlet and 31 on the exhaust
also using a special valve spring and retainer at 80 lbs on the seat and also have another1 thats 90 on the seat good for turbo i would think

[4agtepwr]

80 ftlb's on the seat would be plenty. I would go stainless valves though over the titanium valves in a turbo application. Kelfords do a spring kit for them that are pretty well priced. You don't need all that much lift and duration in a turbo application to make a fair bit of grunt. You will just end up making it laggy and with huge overlap and a small turbo it will choke, not rev anyway and then it will have been a pointless exercise. I have been through this.... The stock crank will be fine! If you try and make much over 400hp for an extended period of time it WILL split a bore, That's just how it goes with the 3s. The block is the week point.
If you want to give Craig from Turbochargers New Zealand in Nelson a ring and tell him that Willie from Christchurch said to give him a yell he will be able to build you a turbo to suit what you want to do at a very sharp price as well. Also you could give Caraid in here in Christchurch a call as they have done a fair few turbo beams motors including Ryan Heagny's enduro AE86.

[diss7]

80 ftlb's on the seat would be plenty. I would go stainless valves though over the titanium valves in a turbo application. Kelfords do a spring kit for them that are pretty well priced. You don't need all that much lift and duration in a turbo application to make a fair bit of grunt. You will just end up making it laggy and with huge overlap and a small turbo it will choke, not rev anyway and then it will have been a pointless exercise. I have been through this.... The stock crank will be fine! If you try and make much over 400hp for an extended period of time it WILL split a bore, That's just how it goes with the 3s. The block is the week point.
If you want to give Craig from Turbochargers New Zealand in Nelson a ring and tell him that Willie from Christchurch said to give him a yell he will be able to build you a turbo to suit what you want to do at a very sharp price as well. Also you could give Caraid in here in Christchurch a call as they have done a fair few turbo beams motors including Ryan Heagny's enduro AE86.

Hi mate. Thanks for the info. Couple of people have said similar things to me that you just have. Caraid also built a mates motor and he raves about them also. Will go see them when they're open next. Re turbo, I already have one new in the box from a previous project, so will use that.

[strx7]

i'm viewing this thread with interest as i have a manual altezza head which i'm planning on putting on my stroked forged bottom end from my SE104 project. I'm sure people will think i'm mad wanting to turn around a dual beams head (i possibly am mad) I was thinking of putting a couple of external oil drains back to the sump to drain from the lowside of the head.

it'll be going into an ST205 and i'm proposing to use either a VF36 hybrid turbo or a VF36 based TD06sl2 turbo, i want 450hp at the motor, with as broader torque spread as possible, looking fowards to playing with exhuast cam timing to spool the turbo sooner.