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I always thought this car felt like it had a diff in it. I honestly thought I was crazy but apparently I'm right. Idk what's in that pumpkin but it sure isn't an open diff.
Odd, I wonder what you have? Maybe you do need some wide boys out back lol. Or just start with bushings for now.
Already got the boys out back. 275s and I still break them free anytime I want. My car is faster than normal HRs though. I've blown away I think 3 of them now. Other HR equipped cars that is. All I have is an exhaust system.
As for the diff idk man. I have never heard it pop so either its a high end clutch type or a helical. It feels way too predictable to be helical though.
I guess the situation is reversed now and I will be the one giving you a ride to see what an LSD is like in these cars lol
Last edited by Bmsluite; Sep 12, 2020 at 05:23 AM.
That's the name if the little gears in there. Funny enough my previous car made more power out of less mods when compared to other Zs on the dyno that day. Even the guys at SP were surprised at my numbers vs the other cars there that day.
It IS OPEN. Just did some doughnuts and it's a one wheel peel. One tire fire.
I definitely have traction issues. I subscribe to the "slow in, fast out" driving style. I get on that throttle as soon and as hard as I can right after I hit the apex.
I heard from someone in the auto industry who made engines that said that engines are all over the place in how much power they actually make. Some cars can be up to 30 hp higher than others. Especially after 100k miles. All depends on the type of steel they cast those engine components out of that day. There are so many variables that affect the metal.
I heard from someone in the auto industry who made engines that said that engines are all over the place in how much power they actually make. Some cars can be up to 30 hp higher than others. Especially after 100k miles. All depends on the type of steel they cast those engine components out of that day. There are so many variables that affect the metal.
If brand new cars in large numbers varied between -30whp when purchased new especially one with only ~300 crank hp, there would be quite a few class action lawsuits. Mazda and a few other manufacturers had to deal with this several years ago when a large number of dynos found cars were significantly down on advertised power. Most manufacturers today under quote power due to this reason.
350zs after XX years with 100k miles, could easily be varied and short of 30 whp, especially if it wasn't maintained which in turn caused excessive wear over time that includes the motor and drive train. Its less likely the metallurgy in the block than it is the owner at >100k. When I bought my Z new in 05 most of the members here (far more abundant then) were posting consistent dyno numbers as nearly all members had new cars with low mileage, same with the HRs when they came out.
If brand new cars in large numbers varied between -30whp when purchased new especially one with only ~300 crank hp, there would be quite a few class action lawsuits. Mazda and a few other manufacturers had to deal with this several years ago when a large number of dynos found cars were significantly down on advertised power. Most manufacturers today under quote power due to this reason.
350zs after XX years with 100k miles, could easily be varied and short of 30 whp, especially if it wasn't maintained which in turn caused excessive wear over time that includes the motor and drive train. Its less likely the metallurgy in the block than it is the owner at >100k. When I bought my Z new in 05 most of the members here (far more abundant then) were posting consistent dyno numbers as nearly all members had new cars with low mileage, same with the HRs when they came out.
I honestly can't really argue this point at all because it's just something some guy told me one time. Just to be clear though, he wasn't saying some cars have 330 hp and some have 270. He just said that st the extreme end of the spectrum one car could have 315 and one car could have 285. A 30 hp difference on the extreme side.
Definitely possible. My '97 WS6 with 1.6 rockers, a Borla cat-back, K&N filter, and an underdrive pulley dyno'ed higher than guys with the same mods plus LT4 heads/cam and longtube headers. I got a Wednesday car.
I am not saying what you're stating is untrue, only that when comparing used 350zs today, there is much more at play than the casting material especially on a high mileage car. I know that the GTR of the same year can vary in power depending on who hand built it from the factory. Though that was corroborated by Nissan press release.
Edit: To stay on topic if this comes up in a search, the easiest way to figure out if you have an open diff is to stop on a semi steep driveway with one rear wheel in the air. In an open diff, the car will get stuck and not move. I creep through a similar ^ driveway daily with ease, while my neighbor's open diff 370z gets stuck. Had to help her push her car every time she tries to enter at a slow angled approach.
Last edited by mr. sparco; Sep 13, 2020 at 09:46 AM.
I am not saying what you're stating is untrue, only that when comparing used 350zs today, there is much more at play than the casting material especially on a high mileage car. I know that the GTR of the same year can vary in power depending on who hand built it from the factory. Though that was corroborated by Nissan press release.
Edit: To stay on topic if this comes up in a search, the easiest way to figure out if you have an open diff is to stop on a semi steep driveway with one rear wheel in the air. In an open diff, the car will get stuck and not move. I creep through a similar ^ driveway daily with ease, while my neighbor's open diff 370z gets stuck. Had to help her push her car every time she tries to enter at a slow angled approach.
Yeah back to topic, do you have an aftermarket LSD? If so, how you like it? The only one I am considering is the OS Giken. The whole build is like 2k. I'm trying to figure if that's worth it. I originally bought this car with the intention of fitting an LSD but now 2k seems like a lot for only helping those few times I burn a tire in a corner. Granted it will allow me to go drifting again but man is that a sketch hobby.
I have an oem G37 vlsd pumpkin, got it for the 3.69 final drive. The vlsd is great for daily and getting through steep driveways. I wouldn't recommend it for anything other than daily. Having driven friends' 350/370z with built rear diffs over the years, it just wasn't worth the $2-3k cost to me, obviously it depends on the end purpose of your z. I am, however, looking at 3.9 or 4.08 final drive gears, the stock 3.53 is a slug, never going back again.
That's what I've been telling him, that 3.69 VLSD is just too much of a good deal compared to a built one, plus you get the aggressive gearing for "free". I happen to want that 3.69 gear for my car. I'll be supercharged so I don't want a 3.9, but alternatively I don't want the 3.58 either so its a good middle ground. Only reason I haven't tracked down a 370z or g37 pumpkin is I have a VLSD now and with my power level goal I will want to have an actual LSD to pair with the 3.69.
Let's play "What's in this pumpkin"
