bulletpruf
Full Access Member
Ok, just got off the phone with Justin at R&D IDI. When I told him what I wanted to do, he recommended an RD2-90 pump, the Stage 1 drop in turbo, Stage 1 camshaft, and some Stage 1 injectors. That's about $3k in parts, but I was expecting that. He recommended the turbo pistons (Mahle $750/set, can add ceramic coating on the top for $275) but he said only .020 and .030 were available right now. I need to call Mahle tomorrow to see if they have any standard bore available or in the queue. I'll also need a set of head studs; he has ARP stud kits for $585. Justin runs factory pistons and compression ratio up to 400 hp/800 ft lbs.
Justin told me to steer clear of the head that I have that's cracked between the valves, and also mentioned that the pre-cups on the market weren't the highest quality, so run the cracked ones (even if cracked past the fire ring) or harvest the pre-cups off the '88 NA head that's cracked and install these in the '94 heads. For valves, I need to source exhaust valves with the stellite face.
We talked about intercoolers and he mentioned that I should be fine if I keep an eye on EGTs and don't tow heavy.
Justin mentioned the cranks were different turbo and NA - same forging but turbo had more weight added to balance. Apparently I can check the casting number to verify that the 1994 crank that I have is the turbo version.
The good news is that I can expect to make 250 hp and 550 ft/lbs at the wheels - manual trans - with the above setup. Hell, I would have been happy with 500 at the crank, so 550 at the wheels is mighty fine by me.
Justin told me to steer clear of the head that I have that's cracked between the valves, and also mentioned that the pre-cups on the market weren't the highest quality, so run the cracked ones (even if cracked past the fire ring) or harvest the pre-cups off the '88 NA head that's cracked and install these in the '94 heads. For valves, I need to source exhaust valves with the stellite face.
We talked about intercoolers and he mentioned that I should be fine if I keep an eye on EGTs and don't tow heavy.
Justin mentioned the cranks were different turbo and NA - same forging but turbo had more weight added to balance. Apparently I can check the casting number to verify that the 1994 crank that I have is the turbo version.
The good news is that I can expect to make 250 hp and 550 ft/lbs at the wheels - manual trans - with the above setup. Hell, I would have been happy with 500 at the crank, so 550 at the wheels is mighty fine by me.
