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Who cares about 1/4 mile times, just put the damn thing in and drive it till the wheels fall off. It would make an interesting conversation piece at the local meet or car show.OK85ZX wrote: Now, when you could use the same amount of money, with less time/labor fix your car, and put it in the 12's… I'm not seeing how this makes it a DET a "good option" just because your turbo and auto transmission are on their way out ( like alot of z31 owners ).
1986 300ZX Turbo…sold
1990 Skyline GT-R…new money pit
2014 Juke Nismo RS 6-speed…daily -
[quote]NissanEgg wrote:I was only quoting quarter mile times because it's most widely used when talking about performance. obviously you've missed my point if that's what you're commenting about. Do you think there will be much difference on a road course between the two engines with the same power? Of course not. Did you want me to quote track times in an engine discussion? I was merely stating a number to show how much you could modify the stock engine with, as i said, the same amount of money, and less time/effort. Sure, if you want to spend that much time/money/effort to build something that people will talk about for a night at a car metting, go ahead. Not worth it to me, I enjoy driving, not showing off.Originally posted by OK85ZX1985 NA2T(now RB) * 1988 SS x2 * 1984 AE x3 * 2006 350Z
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[quote]OK85ZX wrote: [quote=NissanEgg]Say you have two engines to choose from, VG30E and a VG30DE. They are both making 300hp. You have to choose one for track racing. What ever kind of racing it may be, I would pick the DOHC engine for the fact that it will rev higher giving me a more usable rev range.Originally posted by OK85ZX85 Z31 6.0 LSX turbo 766whp/792wtq
04 GTO, LS6, big cam, porting, N20… underway for summertime daily driver. -
He wont be…NissanEgg wrote:
Doesn't cost any money if you do it yourself, even if it's time consuming.
You also have to consider that this isn't America, JDM engines aren't anythng special here but also 5 speeds for Z31s are almost impossible to find and will fetch upwards of $500 if you can even find one that is which you probably wont. With that said he knows that putting the money into the stock engine will make more power at the end of the day, trust me on that one I've told him lol
But one other thing is that from sources I've read the VG30DET doesn't make much more than the VG30ET does here rated at 255HP vs 230HP in the SOHC so it's going to cost a whole lot of time and money for 25HP! -
[quote]300zxt wrote:He will be.... :POriginally posted by NissanEgg
Only thing he won't be doing is custom prop shaft etc. -
And you think the VG30ET is hard to work on? LOL You're going to have real fun with this, tried reading a japanese wiring schematic? Oh much fun! -
oi I did year 10 Japanese and passed it :P300zxt wrote: And you think the VG30ET is hard to work on? LOL You're going to have real fun with this, tried reading a japanese wiring schematic? Oh much fun! -
Haha counting to ten and knowing how to answer the phone in Japanese wont help you read that
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[quote]SATAN wrote: [quote=OK85ZX][quote=NissanEgg]Maybe I'm ignorant, but i don't understand how heavier/more rotating mass, keeping with a 3 litre V6, with generally the same functionality is going to allow you to rev higher?Originally posted by OK85ZX1985 NA2T(now RB) * 1988 SS x2 * 1984 AE x3 * 2006 350Z
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What I was getting at, screw the 1/4 numbers, just do it. THat's what I would do, something a little different than the norm.
As for not costing any money if you do it yourself, you save on labor and etc. by doing the actual work yourself.
1986 300ZX Turbo…sold
1990 Skyline GT-R…new money pit
2014 Juke Nismo RS 6-speed…daily -
[quote]OK85ZX wrote: [quote=SATAN][quote=OK85ZX][quote=NissanEgg]the extra valves …Originally posted by OK85ZX
where the SOHC will have low end torque ,the DOHC will lack . and where the DOHC will have high rev torque , the SOHC will lack .
atleast that's what i think he ment anyway . all i know is that i can build a SOHC to kick a DOHC's ass for alot less than vice versa. -
just look at the stock redline of the two motors. Typically dual over head cam engines can rev higher due to the LIGHTER valves in the valve train. Yes you have twice as much of it, but all of the components are smaller and lighter weight.
Irronically,here is a comparison of the two engines. This was the very first link that came up when I googled sohc vs. dohc :shock:
Either way, here it is.
http://paultan.org/archives/2005/06/22/ … lvetrains/85 Z31 6.0 LSX turbo 766whp/792wtq
04 GTO, LS6, big cam, porting, N20… underway for summertime daily driver. -
That's nice and all but these JDM engines are a real pain in the ass to work on, alot of people know nothing about them and parts for them are hard to come by and expensive! And sadly all of the online resources about them are written in Japanese, who would of thought? :P -
Its all just nuts and bolts man.300zxt wrote: That's nice and all but these JDM engines are a real pain in the ass to work on, alot of people know nothing about them and parts for them are hard to come by and expensive! And sadly all of the online resources about them are written in Japanese, who would of thought? :P85 Z31 6.0 LSX turbo 766whp/792wtq
04 GTO, LS6, big cam, porting, N20… underway for summertime daily driver. -
As I said before, ever seen a Japanese wiring schematic? Not cool! lol
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