glasstechaudio

hello everyone. i've recently bought an 89 gtr and have been working on fixing a few problems the last owners ignored. i had suspicions that the timing was not right so i hooked up a timing light and with the cas all the way clock wise it was sitting at 25 btdc. i've read on here that the cas bolts should be roughly in the mniddle of the slots so i figured something had to be really wrong. i took off the cas and the half moon key thats on the cam shaft is broken off and just sitting in the cas. the splines are fine so once on it won't wiggle about or anything but i have no way of knowing for sure if its set on the cam right. unless i used trial and error and just keep repositioning it and then timing it and seeing if i can get it on the right way. is the gear for the cas a part of the camshaft or is it something that can be replaced without having to replace a cam? any advice?

hello everyone, i used the search but couldn't find anything that solved my problem. i have an 89 GTR and occasionally, although it seems to be happening more and more often, when i start up the car when given the smallest amount of throttle it gets a minimum of "0" on the boost gauge. (i have an aftermarket greddy boost gauge that the last owner spliced into the fuel pressure reg. line) it won't go negative if i have my foot even slightly on the gas. also, it spools up very quickly, it'll be around .5 bar by 3k rpm. when it does this it runs like a dog until it get to around 3500 rpm, at which point it takes off like normal. there is a deffinate power increase at 3500 rpm but the boost gauge doesn't go up, in fact it usually twitches to lower boost. also the exhaust temp goes way up fast. after a few km it, very noticeably, goes back to normal. it will run normal boost pressure and not be sluggish at all. also when it is doing this if you try to just drive it normally and maintain a speed it will sputter and cut out, the boost gauge also twitches when it sputters. it feels like the car is breathing through a straw, or has a potato in the exhaust or an air / fuel problem. it doesn't do it all the time and i am totally stumped on the source of the problem. also the previous owner had butchered the factory wastegate and bov vacuum lines. they removed the factory boost control solenoid and install dual hks bov, then ran the wastegate lines to the bov's. currently i have the wastegates hooked up correctly and the bov's with no vacuum lines going to them at all, when i tried hooking a vacuum line from the plenum to the bov's it kept bleeding boost pressure. any ideas??? i need some good pointers or at least a "start looking here" from someone. thankyou for reading this and any help you can give.