Looking for a Turbo for my lb7. Mods in sig. Called fleece performance and they are recommending there 63-68 with a billet compressor wheel. I Do alot of towing and want something with quick spool up. This will be the last mod I will be doing other than head studs. Anyone here running this charger? Is it too small? Opinions? TIA
anyone running 63/68?
- Thread starter dmax404
- Start date
do not waste your time and money of head studs... when running a turbo of that size.
Thats poor info to put out...
The 63/68 will make 50lbs on a stock fuel system truck, and headstuds are highly recomended, especially on an LB7. A stock turbo and tunning is capable of hurting the HGs on an LB7, let alone another 15-20 PSI with a bigger turbo. Even if it were a gated housing (which would be more restrtictive which would = more drive pressure) set at 35 PSI will hurt a HG on an LB7, believe me, I know!:thumb:
We first tested our 63/68 on an LB7 tow rig, and it blew us all away as to how well it performed and responded. Its a perfect match for a maxed out EFI tune, built trans, and DD/tow rig duties.
Caleb
Its not the boost that kills them, its the drive pressure. I ran 50-55psi on my stock headbolts with no issues till i bent a rod (i was around 600hp). Under good tuning, aftermarket headbolts shouldnt be needed but that dont mean you wont pop a headgasket, it happens sometimes.