Jump to content
SAU Community

Recommended Posts

  • Replies 259
  • Created
  • Last Reply

Top Posters In This Topic

Because they are better...

Maybe to some people but honestly not for me. I am happy with my RB26 and i would have never considered an LS1 when doing my engine swap.

If they were that good Reece McGregor would have ditched trhe RB26 and put a V8 into his GTR but something tells me the mid 7 he runs with his RB is more than adequate :D

I wonder how many seconds you'd get with infinite boost before you did the headgasket or put a hole in a piston.

Any one keen to try it out? : D

With a good tune i think you may be surprised. The exhaust wheel would probably give up before the engine i reckon

Edited by ido09s

With a good tune i think you may be surprised. The exhaust wheel would probably give up before the engine i reckon

How do you tune for infinite boost? On a stock turbo maybe. But on a steel wheeled turbo, all overboosting is going to do is super-heat the intake air and cause detonation.

How do you tune for infinite boost? On a stock turbo maybe. But on a steel wheeled turbo, all overboosting is going to do is super-heat the intake air and cause detonation.

How does anyone tune a Pro Turbo car when they run 50psi+. Takes a fair bit of knowledge and some skill to do it right the first time, but its done on a daily basis now so its not impossible

There would obviously be limitations to the stock bolt ons, but lets assume they have been changed to cope i am sure the engine would last longer than most would expect.

Maybe to some people but honestly not for me. I am happy with my RB26 and i would have never considered an LS1 when doing my engine swap.

If they were that good Reece McGregor would have ditched trhe RB26 and put a V8 into his GTR but something tells me the mid 7 he runs with his RB is more than adequate :D

OK, RB26 vs LS1 is a little different as the RB26 is paired with a pretty good 4WD system. If someone were to figure out how to pair ATTESA with an all alloy V8 only purists would stick with the RB26 :)

How do you tune for infinite boost? On a stock turbo maybe. But on a steel wheeled turbo, all overboosting is going to do is super-heat the intake air and cause detonation.

Infinite boost is infinite air, so you would simply need infinite fuel :laugh:

thats why i said get a nistune board and a tune, i'm fairly certain the standard injectors and fuel pump could supply enough fuel for 15psi...

my injectors were nearly at peak duty on 0.98bar so i believe im right about 15 on stock killing the engine. let alone stock turbo.

I say stop being a blouse and pick something faster to aim for. A stock LS1 is just a boat anchor and i dont know why anyone would want a Skyline being compared with one.

Why not choose a Veyron, or a Koenigsegg CCXR. Surely this sort of performance would be a lot more appealing :D

I had to laugh at this though..... clearly our laws arent doing enough and obviously do need some reform.... ie school kids should stick to a PS3 and GT5 and most certainly should not be let loose in even a stock Skyline, let alone a modified one.

"I have been on P plates for 3 years now but in less than a month I will graduate to my full license. I know the majority of people on here agree with keeping P platers out of high powered cars is a good idea and I cant say i disagree. But these laws definitley need an overhaul, it is clear that the people who came up with these laws don't know much about cars and as such, shouldn't have been put in charge."

Oh and this is absolute GOLD!!!!!

"The reality of weather you should be in a high powered vehicle or not comes down to your attitude, not your age."

Not that i would think you could be bothered to read through that garbage but it just got worse and worse lol.

How does anyone tune a Pro Turbo car when they run 50psi+. Takes a fair bit of knowledge and some skill to do it right the first time, but its done on a daily basis now so its not impossible

There would obviously be limitations to the stock bolt ons, but lets assume they have been changed to cope i am sure the engine would last longer than most would expect.

Yeh when you set a boost controller to 50psi, that's different than just letting the wastegate free-boost.

Infinite boost is infinite air, so you would simply need infinite fuel :laugh:

And timing? :P Boost does not = air volume.

I dont think the 6.0L v8 is going to get beaten with only $1000 spent on the rb,

theres too much torque and outright nasty grunt , i really think you'd need a gt30 to hose one off convincingly

even if you have enough power , how good are you at launching the thing?? if you dont get a sweet launch then your toast!!

and if the v8 recieves some cams and extractors and tune, then just give up lol, or spent some big money..:whistling:

remember you'll lose your licence if you do 30k's over speed limit which is too easy ...pinch.gif

Edited by SliverS2

and if the v8 recieves some cams and extractors and tune, then just give up lol, or spent some big money..:whistling:

I was gonna say, what if your competitors' V8 had any amount of money sunk into it? It's a pretty steep uphill battle!

I dont think the 6.0L v8 is going to get beaten with only $1000 spent on the rb,

theres too much torque and outright nasty grunt , i really think you'd need a gt30 to hose one off convincingly

even if you have enough power , how good are you at launching the thing?? if you dont get a sweet launch then your toast!!

and if the v8 recieves some cams and extractors and tune, then just give up lol, or spent some big money..:whistling:

remember you'll lose your licence if you do 30k's over speed limit which is too easy ...pinch.gif

You're just comparing the engines. You forget they happened to put them into an outright oil-tanker of a car.

As previously mentioned, the R8 is not a bad area to set the bar at. The VX runs what, 13-flat? Easily achievable in a mildly modified Skyline.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Stock RB fuel pressure is near enough 43.5 psi, so the latency in that table at 31.6 will be close. You can see that 7 or 8 psi equates to about 0.4µs extra latency. So if you wanted to interpolate between the 31.6 and 39.9 psi values you could say you're going up about 2 psi out of those 8, so add about 0.1µs, which is barely worth talking about and is quite possibly wrong because ideally you would fix the latency while running at the appropriate conditions on the dyno, with a wideband sniffing its butt.
    • The pressure, is what you set the fuel pressure to. If you have the factory fuel reg, you'll need to find the factory spec. I don't know it off the top of my head, but someone else might.
    • For others, what GTSBoy states here should be paid attention. Why? Well lots of people play with different engines, and they LOVE to change things like remove AC, or steering pumps etc, and it lends to them needing to move the tensioner too. You want your tensioner, particularly those that are sprung or hydraulically tensioned, to be the first thing after the harmonic balancer, or technically the "last" pulley in the chain. By saying last pulley, I mean look at the direction the crank spins when the engine is running, follow the belt from where the crank is pulling the belt FROM, and keep following that until you're between the last pulley/accessory on the belt and about to reach the crank again, this is the spot where you put the tensioner. This is the area that will always end up with slack. This is worked out exactly the same way for chains too, as the physics is the same for them. The crank pulley is where all the force to drag the belt around comes from. You will never ever get rid of the slack that appears, especially under load. The tensioners job is to keep the belt loose enough when stationary that there shouldn't be out of sync movement in slow movement, and then be tight enough when running, that the belt can't jump off any gear and get damaged. Too tight, bad things happen, too loose, bad things happen. Have a tensioner (mainly sprung/hydraulic one) in the wrong spot, it can't actually do anything about keeping the tension.
    • It was gonna take much longer for the 440cc so I'd thought I'd risk it with the 550cc. They finally arrived and I couldn't wait any longer (I could but I was quite excited after 2 months) and installed them myself. Removed the old injectors, inserted the new and connected everything up. Before starting the car, I tuned the injector size from the factory 270cc to 550cc using Nistune.   This did some of the calculations automatically which catered for the TIM. The latency however did not seem to change. Deatschwerks have the tuning data available for each injector online, and I had a look at it. It has a table which relates to latency according to pressure and voltage (see below image). Nistune requires the 14v value, but I am unsure of which pressure value to look at (my lack of knowledge and experience have something to do with this). The highlighted value is close to my current latency which is 760µs. It is for 14v which makes sense, and the pressure is 31.6 Psi.   I still gave the car a test drive to see how it goes, and honestly it has never felt so powerful before (and some people say the RB20DE is very weak?). I really enjoyed the drive. Side note; The injectors are quite noisy, which someone mentioned before. This does not really bother me however. I will still ask my mechanic to have a look at it and perhaps ask a tuner to fine tune it if they have the knowledge.
    • Also true. But imagine not wanting new injectors? Imagine wanting to use 30 year old injectors?
×
×
  • Create New...