1998 turbo R34. Low Ks, Lightly Modified
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Gday, Due to not finding much up to date info on this topic I thought I'd make a thread to get peoples latest opinions/recommendations. Background info - I've got a S1.5 R33 GTST as a fun project car, mainly for street use and occasional drag strip, apart from all the cosmetic things I'll be doing a full rebuild of the engine with forged internals. Since it'll be getting new cams (kelford) and springs to match I thought I might as well get new lifters and valves while I'm at it, the dash says 160k KMs but the engine seems pretty tired, compression measures about 130psi across all cylinders so I'd like to freshen everything up. This is where I'm tempted to just fork out the extra and go solid lifters while it's all apart, aiming for 400-450kw atw with a flex tune. Assuming all supporting mods (oiling, fuel and all bolt ons) with a lightly ported head and turbo to match (yet to make a decision possibly gtx3582r or similar from Hypergear) I've seen the Tomei kits with just the buckets getting around, Supertech sells most things - Supertech High Performance Cam Followers | Trusted Racing Cam Followers Questions - Has anyone found the Hydraulic lifters to limit them at this power level? Is it usually found that you can just clean the stock lifters and find they work fine? Does going solid lifters save any headaches/issues with hydraulic lifters in the future? Any recommendations on other things that will need to be replaced, I know I'll need to get the solid profile cams but can you use the same type of valves and springs/retainers and is it recommended to change the guides and stem seals? Summary - Basically looking for pros/cons and wanna know if I'll actually need the extra RPMs from solid lifters or it'll just be bragging rights to say it ReVs OvEr 8000 Cheers -
Ha ha ha, this stuff they had was installing Toshiba PLCs that were made some time in the 1990s, and they were replacing GEM80 PLCs. To let those two talk (staged upgrade along a ~1.2km long building that was split into 4 sections), was a bunch of WinXP machines running Java gateways... There was no way to put something like ProfiSafe in... Most of the HMI machines were WinXP, with Java program, with a custom button board emulating a keyboard... About the only buttons in the operator stations that went direct to the PLCs was the eStop. There was some interesting design stuff in that place... -
Stock bypass valves are good for plenty of boost. -
Check for fuel flow out of the outlet end of the rail. Check for spark. Try to start with aerostart (or pressure can brake cleaner or similar solvent in a car) prayed in through TB. If you have fuel and you have spark and it will fire on substitute fuel, then seriously suspect that E85 sitting for ages in your fuel system has destroyed something and put it in your injectors.
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Nissan stock oil pressure is typically about 1 bar at 1000 rpm plus about 1 bar per thousand revs on top.
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