My D66 spooled slower than stock with the stock obs
injectors, as I suspected it would. I installed it before the injectors just to see how it ran.
I immediately installed the 238/100 injectors along with head studs, pushrods, and 910 valve springs. Running beans tunes, it spooled great in all of the tunes above stock power levels. I ran it on a tow tune every day, egt's were 50-100* cooler than stock in that tune which I ran 99% of the time.
In the hottest tune, egt's could jump to 1500* in a hurry, but would light the turbo instantly, and roast the tires until I shifted (5 speed)
With good tuning, and not driving like an idiot, I know it can survive. I'd say my tow tune ran in the 350hp area, and next to no smoke, which was perfect for daily driving. I think I'll be shooting for a smoke free 400-450hp, without studs, springs or pushrods in my other obs
. I'll continue to run it at a lower hp, with the odd sneaky stoplight destruction of a new duramax here and there.
1997 F250 ECSB, 140Kmiles, 3.55's, 5 spd, Sht throw, S.B. dd clutch, Rosewood 238/100, Adrenaline, S468, irate mount, ARP studs, 910 springs, smith bros. p/r, 4" MBRP, AFE Stg 2, BDP tunes, Termi Scan gauge, Swamps IDM, intercooled, BDP fuel
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1997 F250, CCSB, swamps idm, 3" dp, 3.5" cat delete, 38gal rear tank.