Fail to see how a motor with more displacement would get walked by a motor with less. Reckon you could elaborate a bit more?
No more naive than a general rule that "V8s are better" which isn't always so. The modified outlaw series cars is a fine example, all 6 second and 7 second cars. (Single turbo TRD Celica and co) The age old battle between 300ZX's and Mustangs in the USA, where the Z regularly stomps them etc We're not brickhead yanks are were that need 6L motors to go fast? 1000rwhp 3.0L V6s are a fairly good demonstration that you dont always need cubes. Remember that motor in your car, the VG30?
Haha yep I see your point! However I don't really see a 1000rwhp 3.0L having much of a useable power band. Different power deliveries. But then again if you're dragging I guess useable power's not important But a motor with twice the capacity at the same power level would be under far less stress, surely. Besides if you tweaked a VH45 up to the same level of craziness of these 3.0L motors 1000rwhp+ wouldn't be out of grasp? Just have to look at the Twin Turbo LS engines that see monster power, can't beat CC's so they say
Who knows how much a VH can handle as is? It's practically a limousine motor that was used to haul around 5 tonnes of nothing... It's yet to be determined how solid it can make power in these hybrid setups in the long run after extended periods of abuse. But it's not like TT V8 Nissan motors are a new concept anyways... 1990 Nissan R90 CK w/ VRH 35Z
What do you think they based the VRH on? I have seen 600hp on a unopened VH45DE. Kept snapping axles Nizpro have made some mental 1200hp+ race boat motors using the VH/VK.
Well duh Captain obvious, hence its inclusion in this thread... You can bet there was a TON of modifications that went into that motor though before it was race worthy. It wasn't very successful either, there's one thing which kind of has a big influence on racing. Fuel consumption... Nissan saw more success with it's single turbo V6 line up in the Group C racing in the 80s than it ever did with the TT V8 in the 90s.
Yes thank you! You have 1200whp+ V8 VHs AND 1200rwhp+ V6 VG's! Which brings me back to this... Define better?
Well most of that success was with teh VG30ET because the DETT wasnt reliable enough and nothing you have posted above says that the VH wasnt any good, it just used too much fuel for that type of racing. The R89C made 1200hp+ in qualifying trim fwif.
I never said it wasn't any good, just listen to the R90 CK... It kicks ass. http://www.youtube.com/watch?v=U1-P3AB41l0 http://www.youtube.com/watch?v=Rqo8XwnrgiI It's just not leaps and bounds better than the V6 is all! It's more of a "just to be different" kind of swap imo.
umm, excuse me ... street-able engines here umm, excuse me ... street-able engines here not race car engines. Lets face facts here two engines of similar technology design (i.e. quad-cam, 4 values per cylinder) both at the same power-rating; of course the larger capacity engine will be under a lot less stress than its small capacity brother.
Absolutely... To keep it fair, an NA VH will knock the shit out of an NA VG... But boost them both and the contest is on for one and all! It's never going to be a straight cut win for the V8 in that context.
It's got nothing to do with displacement when you throw in the variable of turbocharging... For all I know you and your V8 could be a complete bucket of snot running lean in the upper RPMs and mine could be a finely tuned monster. More displacement and 2 more cylinders doesn't automatically = win. All things EXACTLY even, built by the same person with all the same gear then yes in THEORY.
I think the point is the vg is perfectly fine for 95% of our needs. But swapping it out is perfectly fine too.
I see where you're coming from 300zxt, thing which interests me is how an OEM VH45DE takes abuse compared to a VG30. In the design process I doubt hard-cornering, redlining often, etc. was a big consideration given it's home was a Luxo car used mainly for leisurely drives. Most the powerful VH's I've seen are built from the ground up with aftermarket everything so can anyone safely say they're durable/long lasting when used in a 'performance' manner? How do they go with Oil Surge, etc.?
Well that's it. Why waste all that time, money and effort in doing a fairly serious engine swap if you just plonk in an OEM spec engine? Go hard or go home, like they say... Now there's one train of thought in "lets see what we can make on stock gear" which is a fair enough. Nissan are know for over-engineering their motors for longitivity, so I wouldn't expect there to be some major flaw in a boosted VH. But when you turbocharge a motor never specifically designed for it OEM then the risk is always there. To say "oh but Nizpro did this!" is kind of a nothing comparison, Nizpro also built a 530rwhp+ SR20DET. At those power levels it becomes less and less about your powerplant of choice, and more and more about the expertise behind those that built and tuned it. I'm vocal about this, because I'm from a family of V8 freaks. They always say "oh but if my engine was turbo'd we'd win automatically" to which I respond "well if my car had rocket boosters I could fly to space" Shoulda, coulda, woulda does not win races!
this thread is funny. that r31 looks mental, that vh looks awesome in there. love the way they done the piping.
