Guest Anonymous Posted November 18, 2000 Share Posted November 18, 2000 ok, i'm planning on building up my L28 isted of selling it and puttin in a V8. My questions are how much HP will i have if i add: MSA targa Exhaust(straight pipe to the system with no cat), MSA 3 into 2 header, cold air induction(K&N cone filter on the 3" pipe), and the TB and AFM off of a 200sx(if this last mod will work would someone please tell me) thanks in advance P.S. i want the car to be quick off the line but handle real well, does anyone know the weight dist on a stock 81 280zx 2+2?? Quote Link to comment Share on other sites More sharing options...
Drax240z Posted November 18, 2000 Share Posted November 18, 2000 Sorry, I can't really guess horsepower numbers for you. I have a suggestion however. If you are going to open up the intake and exhaust of the car like this, you'd likely benefit greatly from a performance cam as well. I'd recommend the 240sx throttle body, do a little smoothing to make sure it blends nicely with the intake. As far as the AFM goes, I'd check out either a zxt AFM, or if you want something even bigger fo with a early 80's BMW 530i AFM. Basically you use the case of the bigger AFM and swap in the guts from your afm. Along with these mods you are likely going to have to do something with the amount of fuel being delivered. Running a few more PSI of fuel pressure might be necessary, or larger injectors. Weren't all 81's automatics? Or was that just the 81 turbos? Anyway, before messing with the engine for inproving off the line speed, I'd get a 3.90:1 rear end and a 5 spd manual. Not many people really hop up a injected L28, but I don't really see why not. It can be done. Its probably worth while to read up on bosch fuel injection systems a bit however. (they are dead simple) Good luck. ------------------ "Gimme Fuel, Gimme Fire, Gimme that which I desire" -Metallica Drax240z 1972 240z - L28TURBO transplant on the way! http://members.xoom.com/r_lewis/datsun.html Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted November 18, 2000 Share Posted November 18, 2000 how much would it cost to convert my car to a 5speed? and how hard would it be? Quote Link to comment Share on other sites More sharing options...
Drax240z Posted November 18, 2000 Share Posted November 18, 2000 Cheap. Much cheaper than a new engine that is for sure. I have a tranny that I'd let go for under $100 here. But I won't ship it. I am sure you can find a similar deal closer to home. All you really need is the clutch pedal assembly, master cylinder, transmission, flywheel and clutch. Maybe a driveshaft off a MT car too... Its not a small project, but its not something that you couldn't knock off in a weekend. A warning though, most 5 spds are mated with a different rear end ratio than the autos have, so you would likely want to change that too. There is no reason why you couldn't do the tranny one weekend and the diff the next though. ------------------ "Gimme Fuel, Gimme Fire, Gimme that which I desire" -Metallica Drax240z 1972 240z - L28TURBO transplant on the way! http://members.xoom.com/r_lewis/datsun.html Quote Link to comment Share on other sites More sharing options...
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