VQ35DE vs VQ35HR
#121
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https://my350z.com/forum/engine-and-drivetrain/301451-4-083-gears-final-drive-installed.html
According to aceman's math its 101 mph in 3rd. So its up for discussions lol.
TK
EDIT: NVM, he used 255/45/17 tires, I used 245/45/18 (the stock 07 rear tire size)
According to aceman's math its 101 mph in 3rd. So its up for discussions lol.
TK
EDIT: NVM, he used 255/45/17 tires, I used 245/45/18 (the stock 07 rear tire size)
#123
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Here was the original thread. Keep in mind we are not doing mathematical calculations of tire size and gear ratios. He was just going off whatever the speedometer said.
https://my350z.com/forum/2003-2009-nissan-350z/268105-07-z-review-in-comparison-to-my-06-z.html
https://my350z.com/forum/2003-2009-nissan-350z/268105-07-z-review-in-comparison-to-my-06-z.html
#124
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I dont know about on the street because I havent tested it on the street and paid attention but I generally trap 106 and have trapped a few times at 107 in the 1/4 mile and Im generally well into 4th gear.
#125
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Okay, sorry but no pic, it was fuzzy... I managed to get the digital speedometer to read as high as 104 mph, but that was also bouncing off of the rev limiter and you really don't want to do that at the track because it costs you time. But I'm sure there's also some error in the speedo too. I've noticed that it seems to read about 2 mph faster than what those speed signs with radar guns tell me I'm driving when going around 80 mph. So I tend to agree with the 101 mph that was stated. That still means 4th gear in the 1/4, so don't try to play that card, lol.
#126
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Originally Posted by 2007-Z
Okay, sorry but no pic, it was fuzzy... I managed to get the digital speedometer to read as high as 104 mph, but that was also bouncing off of the rev limiter and you really don't want to do that at the track because it costs you time. But I'm sure there's also some error in the speedo too. I've noticed that it seems to read about 2 mph faster than what those speed signs with radar guns tell me I'm driving when going around 80 mph. So I tend to agree with the 101 mph that was stated. That still means 4th gear in the 1/4, so don't try to play that card, lol.
#127
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Originally Posted by rkemp1
given that 2 mph difference at 80 would you agree that at 160mph on the digital speedo your probably actually doing about 155?
#128
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Here is a overlay of a HR engine with a few mods and my DE engine with everything but heads and cams.
https://my350z.com/forum/engine-and-drivetrain/328813-dyno-overlay-of-a-07-and-03-same-day-same-dyno.html
The HR engine is a far better design then the DE engine. But it should be, it has been 5 years now.
Later
Todd
https://my350z.com/forum/engine-and-drivetrain/328813-dyno-overlay-of-a-07-and-03-same-day-same-dyno.html
The HR engine is a far better design then the DE engine. But it should be, it has been 5 years now.
Later
Todd
#129
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Originally Posted by 2007-Z
Yes, but it's still governed at 160. Maybe it's 155 with a radar gun, but the speedometer still says 160. You can correct this by increasing the size of the tires because speed is measured by the rpm of the tires. If the tires are larger in diameter then they have a greater circumferance which means more distance traveled per rotation. Hence, greater speed with fewer rotations.
#130
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Originally Posted by 2007-Z
Yes, but it's still governed at 160. Maybe it's 155 with a radar gun, but the speedometer still says 160. You can correct this by increasing the size of the tires because speed is measured by the rpm of the tires. If the tires are larger in diameter then they have a greater circumferance which means more distance traveled per rotation. Hence, greater speed with fewer rotations.
#131
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Originally Posted by SOLO-350Z
My NISMO topped out at 160 on my SPEEDO when it hit the speed limiter. My TomTom showed 154-155 mph at that speed.
#133
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Originally Posted by rkemp1
I know because the car is governed at 155 actual speed. It may say 160 but thats for the sake of the speedo showing as maxed out.
#134
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Originally Posted by shadykilla717
Could it be that the 06 and under guys are alil upset and jelous that it costs them god knows how much in mods to keep up wit us stock?? And we payed the sameprice for our cars?? And also that we don't even NEED half the mods they do to catch us?? I think I hear alot of jelousy out of you de guys.... Both cars are great. stfu. Enjoy your car. It's proven the hr is a better performing motor in stock. The de is more moddable than an hr why?? because the hr dsn't need half the mods the de does. Thats it. It's over. Happy safe driving.
Also its not about just not enough mods for the HR
HR headers are equal length preety much no improvment can be made
intake is preety much topped out
exhaust ..ur using whats out
pulleys um....yea not much intrest
your car is maxed out preety much...until FI comes out or a ecu at least enjoy ur 4 mods man. And lets move on
theres a reason why the nismo Z has no improvement mods for NA because really nothing is gonna be better then a exhaust and gearing in the 3.5HR . SO stop whinning. lol
God please come out with the 3.8RS so i can really get a Z worth upgrading to sheesh. But i do loooove the nismos suspension mods very worth it in my opinion but i wouldnt trade at all for anyhting else then a 3.7 or 3.8 RS Z at this point. My engine doesnt consume oil with the v2 and im clear to go with mods.
But yea in the end who cares...the person with the bettter mods wins.
Last edited by RBlover69; 02-11-2008 at 07:07 PM.
#135
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Originally Posted by Hoooper
great, so if you put monster truck tires on your z it will be governed at 500mph. sweet
Originally Posted by rkemp1
I know because the car is governed at 155 actual speed. It may say 160 but thats for the sake of the speedo showing as maxed out.
Originally Posted by rkemp1
thats for the sake of the speedo showing as maxed out.
If you say otherwise then post a link to a page from Nissan where they explain why the speedo is off, or else it's nothing more than speculation...
#137
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Originally Posted by 2007-Z
What a tool... Do you have any common sense at all? Judging from your posts that I've seen I'm going to require proof if you say you do. How much of a difference in tire diameter do you really think is going to be required to correct the speedometer at those speeds?
No, that's the error in the speedometer. Nissan could adjust it and make it correct if they wanted to, but why? The way it is right now people will think they are going faster than they really are, which helps for speeding tickets so long as you're not speeding heavily. If you're doing 5 over, then in reality you might only be at 3 or 4 over. Less likely to be stopped. As for it being off at 160, who cares? It's not meant to be a precision gauge of your speed, just a reference.
That statement makes absolutely no sense to me. If they only wanted to make the speedo maxed out when the car was maxed out they could've made the speedo read 155 instead. My Camaro was the same way. It was off by a few mph at those speeds. It's just error in the setup, nothing more.
If you say otherwise then post a link to a page from Nissan where they explain why the speedo is off, or else it's nothing more than speculation...
No, that's the error in the speedometer. Nissan could adjust it and make it correct if they wanted to, but why? The way it is right now people will think they are going faster than they really are, which helps for speeding tickets so long as you're not speeding heavily. If you're doing 5 over, then in reality you might only be at 3 or 4 over. Less likely to be stopped. As for it being off at 160, who cares? It's not meant to be a precision gauge of your speed, just a reference.
That statement makes absolutely no sense to me. If they only wanted to make the speedo maxed out when the car was maxed out they could've made the speedo read 155 instead. My Camaro was the same way. It was off by a few mph at those speeds. It's just error in the setup, nothing more.
If you say otherwise then post a link to a page from Nissan where they explain why the speedo is off, or else it's nothing more than speculation...
WE ARE AGREEING ON THE SAME POINT!
#138
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by the way your right on the last thing. it is just speculation as to why nissan would do it for the sake of maxing out the speedo. But I didnt realize that I had to provide parenthetical documentation to prove a point that really aint that damn important... 2 me anyway
#139
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Originally Posted by 2007-Z
What a tool... Do you have any common sense at all? Judging from your posts that I've seen I'm going to require proof if you say you do. How much of a difference in tire diameter do you really think is going to be required to correct the speedometer at those speeds?
#140
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Originally Posted by rkemp1
by the way your right on the last thing. it is just speculation as to why nissan would do it for the sake of maxing out the speedo. But I didnt realize that I had to provide parenthetical documentation to prove a point that really aint that damn important... 2 me anyway
I don't argue with everyone, only some of people who are wrong, who are asses, or who take a stab at me (if I argued with everyone on here in those categories I'd never have time to sleep). I started requiring proof of things because of all the idiots who make posts contrary to the facts and the only proof they provide is, "because I say so". "This car is faster because I say so". "This engine is better because I say so". Blah, blah, blah... Cry me a river.
This is the first car forum I've ever been involved with that had so many hateful *******s. I guess it's starting to rub off on me... You don't see this kind of bickering at the Mustang, Vette, Viper, etc.. forums. A little, yes, but not on every post in every forum like in here. For the most part they all stick together and bash people with other types of cars. But people here seem to stick up for people with other cars and bash the people with the same cars. WTF?! It's like a royal rumble. Maybe I'll go back to just reading and not posting.