Hi all,
Thought I'd share some photos of my recently completed 996 3.9 4s engine project.
I'm using westwood wet liners, mahle motorsport 100mm pistons, ARP hardware, have done a good amount of porting work on the heads, schrick 12mm inl cams, x51 intake manifolds and runners, 83mm tb, custom 997.2 airbox w/k&n filters and modded decklid with 2 intakes. I've renewed pretty much everything while in there inc all the chains, guides, shells, the oil pump relief valve for the uprated 997 one. It's got a LN dual row upgraded IMS. I'm using 997 S injectors and oil cooler, some unknown brand manifolds, 200 cell cats and gundo hacked 997 exhausts. I've flashed the x51 map on to use as the base map, the dme tuning so far has been relatively basic at sorting krkte to match 997 3.8 injectors (running same value as 997 s), changes to the dk maps to suit the larger TB, and a slight tweak to MAF calibration to suit the slightly different pipe diameter. I've still to do some datalogging and general sorting out, I don't currently own a wideband and am undecided on whether I'll bother going that route and doing some mapping on the road or to finish it on the rollers.
Next project is to shed some weight, and I'm contemplating going rwd, all while keeping it road friendly...
Cheers
Tim
Thought I'd share some photos of my recently completed 996 3.9 4s engine project.
I'm using westwood wet liners, mahle motorsport 100mm pistons, ARP hardware, have done a good amount of porting work on the heads, schrick 12mm inl cams, x51 intake manifolds and runners, 83mm tb, custom 997.2 airbox w/k&n filters and modded decklid with 2 intakes. I've renewed pretty much everything while in there inc all the chains, guides, shells, the oil pump relief valve for the uprated 997 one. It's got a LN dual row upgraded IMS. I'm using 997 S injectors and oil cooler, some unknown brand manifolds, 200 cell cats and gundo hacked 997 exhausts. I've flashed the x51 map on to use as the base map, the dme tuning so far has been relatively basic at sorting krkte to match 997 3.8 injectors (running same value as 997 s), changes to the dk maps to suit the larger TB, and a slight tweak to MAF calibration to suit the slightly different pipe diameter. I've still to do some datalogging and general sorting out, I don't currently own a wideband and am undecided on whether I'll bother going that route and doing some mapping on the road or to finish it on the rollers.
Next project is to shed some weight, and I'm contemplating going rwd, all while keeping it road friendly...
Cheers
Tim