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for those who dont know the lds 427 turbo is a non waste gate turbo it looks similar to a d turbo but the compressor side is much wider and flater

exactly right ken the waste gated turbo is limited what max boost will be.how much boost have you been able to get out of one of the ported d turbos :?:it seems that is a big mystery

beerslayer you probably have a c or d turbo .thats pretty common for one of those turbos with the fuel turned up.my motor is labeled as a 465 1d but it has a lds427 turbo and the injectiion pump is different to. i believe when it was rebuilt to lds specs at the depot in 92.if you have a c motor...

i would think it to be another oil ring the more oil you can keep on the piston the cooler it will be .rather than just keep enough oil on the piston to lube the cylinder walls i think they wanted to keep enough oil on there to help disapait some of the heat.

i'm not sure how much a ported d turbo will flow.i guess youll have to stick it on there and keep us informed of the outcome .but the lds has lower compression ,more rings on the pistons and one more oil cooler tube to the bottom of each piston so it should be able to take a little more air...

a waste gate is there only to limit max boost .the reason the waste gate turbo it better is because it flows more on the compressor side and the exhuast side . so it can make more boost at lower speeds without overfueling. it can take more fuel . the c and d turbos are pretty restrictive and...

that would probably be best .i'm not sure how much you'll gain from porting a d turbo or if it will keep up with the fuel curve on a lds :roll:

hmm not sure youll need a waste gate .what rpm are you planning on running it up to. i have mine turned up pretty far and am running about 27 psi on my ldt-1d :-Di would bet that if you put the same turbo i have on a lds that is running higher rpm lets say 2900 you will be in the area of 30-...