Drax240z

That info is here somewhere... I think the R200's in the Z32's had a 4.08:1 ratio... Anyone remeber for sure? Try searching the drivetrain forum... ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Mike what brand of cell is it? I was looking through my summit catalogue... is it the ones made by summit themselves? The red ones? (at least they are red in the pictures) ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

I totally agree with your last statement!! I've seen some terribly intelligent people do some terribly stupid things. Book-smart is one thing, life-smart is quite another. I wonder where I can find a slide rule... ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Sounds like my story Clint. I had a $1200 tax return, and figured that would be perfect for a cheap, budget performance upgrade. Maybe a built L28? Cheapy V8 swap? Stock Turbo? Heh. $6500 later, and I have another car alltogether, the engine is going to be anything but stock, half the other stuff on the car has changed, and more is still changing. Argh! My "engine swap" has been almost a year in the making now! ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Sick!! I need to get into the low 4's to be happy. That will let me lay waste to 99.9% of the cars on the road. (I don't think I'll be racing at speeds much higher than 60mph on the streets) Hell, top fuels do 0-60mph in 0.8! Ron, you're knocking on thier door. Hehe. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Pete, don't do it! Resist temptation, and drive the car a second time before you put a new engine in. Hehe. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Kevin, I think I can help you a bit. The "normal" pattern for O2's... Well its like this. Scottie says his target is 780mV, which I am assuming is very close to stoichiametric air/fuel ratio. You make the most power when you are running on the ragged edge of pinging... Obviously this would leave no room for error or fluctuation at all. Right now the higher O2 readings are due to Scottie being cautious I am sure. "normal" or "ideal" O2's for a 1/4 mile run should be a straight line I believe. Really not too much to see. This would give you maximum power at every RPM. In theory. Tuning the car that accurately is the hard part! A knock sensor, senses detonation. And yes, this immediately tells the computer to retard timing. How much in Scotties situation, I don't know. I think Scottie mentioned that he was still getting fuel pressure fluctuations once in a while, which was why he was running extra rich. Just to avoid meltdown if his fuel pressure suddenly dropped, and there was a lean situation occuring. At full throttle, lean & pinging, you'd probably have about a second before your pistons were melted. A bit longer for hypereutectic and forged pistons. (like 3 or 4 seconds) Tuning is soooo important!! (as I am sure you have noticed) PS: If I'm wrong on anything here, correct me please. I'm not sure whether stoich is where max power is produced or not? Anyone? ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers [This message has been edited by Drax240z (edited March 27, 2001).]

Funny you guys mention slide rules. Sadly, I don't think I've ever even seen one!! (too young I guess) The funny part is that I was sitting in class today, tuning out the lecture... and I thought to myself "I want to learn how to use a slide rule." Call me a glutton for punishment, but it interests me. Unfortunately I think I'll have trouble finding one... and finding someone to show me how to use it. The quest continues. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Looking good! What stopped you from trying a symmetrical design? ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

http://www.eng.fsu.edu/~jthagard ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

*drool* more more more!! I love it. Maybe I should have sprung for datalogging. Feel free to edjumicate us some more Scottie. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Welcome. I may not be telling you what you want to hear, but I *THINK* its wise. (remeber, opinions are like...) Its good to hear that you have checked into a turbo first off. Sounds like you want 500hp. I hate to tell you this, but pushing a SR20DET to 500hp won't cost much more/less than doing the same thing with an L28. While the L series was a great design, it does have a few inherent faults to it. First and foremost, it does not have a cross flow head. I've heard numbers for the loss of efficiency from this being around 14-18%. Yes, 14-18% more power available just by using a crossflow head. If it were me, and its not. I would go SR20DET. I don't know a ton about those engines... What I do know. They are FREAKING lightweight. They have a large aftermarket support. They can support 500hp. They are short, and with a car that was origionally designed for a 4 banger, its likely to keep the center of gravity more centralized that if you went with a 6. As far as the lack of torque available from a turbocharged 4 cylinder, I have to disagree. Turbo's make torque. You aren't going to get a V8 type torque curve with anything with small displacement. (ie: 300ft-lbs from 1500-4000rpm, that type of thing) Consider the stock L28 turbo, and NA. Naturally Aspirated: Peak HP: 135bhp@5,200rpm Peak Torque: 144ft-lbs@4,400rpm Turbo: Peak HP: 180bhp@5,600rpm Peak Torque: 200ft-lbs@2,800rpm What this says to me is that HELL YES turbo's make torque. AND they can do so at low RPM. 2,800 is a low torque peak!!!! Granted you sacrifice top end performance with a turbo like this, but a comprimise can be reached that will give you the best of both worlds. Well, there is my crack at a novel. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

It should be true for any engine, granted you'd have to extrapolate if the engine didn't rev high enough. Its not a result of a 4 stroke engine, or 2 stroke, diesel, gasoline or otherwise. No matter what the engine tested, its 5252 for all of them. Its the matter of HOW torque and HP are actually calculated. (see kevin's earlier post) Its the same for horses pulling levers, and for that matter, even hamsters running on little wheels. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Heh, you forgot to giggle when you mentioned the swingout bar. Scottie always does in his posts, I thought it was a requisite! I think I'll contort myself to get over my side bars. (giggleless, they aren't going to be swingouts) Just for that slightly better stiffness and protection. That, and it may be a good excuse to lose a few pounds. Heh, everytime I try to lose weight, I end up gaining it. First thing I do, hit the gym hard... and bulk up! ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers [This message has been edited by Drax240z (edited March 26, 2001).]

Off topic a bit... How come such a high percentage of Z guys are so big? I've noticed that a lot! Big guys and little cars... works for me. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Why not heat your shifter up, then bent it to where you want it? I'm using the 5spd shifter with my 5spd. :/ ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

I think I see your problem Kevin. You seem to be going about it the wrong way... HP = RPM x torque/5252 When RPM is equal to 5252 RPM, the formula simplifies to HP = Torque. (the 5252's cancel) Dyno's are all different, and we all know that they are best used for comparisons (On the same dyno) because of their inaccuracies. Thats why you see some crossing at 5300, 5400, etc. Just the in accuracy of that particular Dyno. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

"what is wrong" Well... Tuning will be a major beaaach. Remember you want to maintain a good air/fuel ratio throughout your rpm range. Much much harder to do with a carb than with EFI. It should work, it should be possible. I would sooner run a blow through design using mikuni's or triple webers than with a holley, but the holley should be doable too. I'm not convinved that you would have enough control over your air/fuel ratio to safely hit 400hp on an L28 however. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Check this out: http://24.4.88.29/ubb/Forum13/HTML/000005.html ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

I've been told by half a billion people that your best bet is to sand down to the origional paint/primer. It is stuck to the bare metal better than whatever else you may throw on it. On a car with tons of coats allready, you may have to strip. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

I've run the 83 toyota 4x4 calipers (stamped S12) with stock discs, on 2 cars. Works fine. The ones that work with the 84 300zx vented rotors are stamped S12W. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Evan, two words. Duct Tape. Hehe. "remember, if the ladies don't find you handsome, they should at least find you handy." - Red Green ------------------ Richard Lewis

Pete is right about the teflon stuff binding and cracking. You can pretty much feel it when you are bending it at too tight a radius though. If it starts resisting, stop bending it! ------------------ Richard Lewis

Hmm, just bought some gauges for myself today. Thats what those little mini condoms are for! I thought autometer was just being insulting. I think I may just hook up a second rheostat to the lighting on the new gauges so I can control them independantly of the speedo/tach. Its not very often that I actually adjust the light level ones its set, so it wouldn't be that much of a pain. ------------------ Richard Lewis

Well I'm glad to hear you found a car! The t-5's only came on the 1983 280zx Turbos. Likely you have a 5 speed from the 75-82 years, because they were a lot more numerous! As for posting pictures, you can simply use html code. You need to find a host online for your picture. (same as a webpage) Then all you have to do is use the html code for inserting a picture: Like that, except you'd use <> brackets, instead of [] brackets. ------------------ Richard Lewis