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Showing content with the highest reputation on 12/18/2010 in all areas

  1. That slammed GTR is awful. Never should a GTR be slammed and have stretched tyres. Never. On a different note, anyone ever driven a VW Jetta? Just like a Golf? Wouldn't mind one (being in the market for a new car) and this has given me some more inspiration
    1 point
  2. general rule, 70-80hp. you'll never get exact figures for every skyline but who cares, arguing over 5-10hp is like sticking a dildo up your own ass, gay.
    1 point
  3. 1 point
  4. Just because the rods looks the same size, doesnt mean shit, its what they are made from/journal size that matters.
    1 point
  5. yeah, good point always keep a 500rpm header.
    1 point
  6. 1 point
  7. Ha! Well in all honesty, I would drive that volvo.
    1 point
  8. When your pushing the limits, an external handles it better. Nobody [well almost nobody] has a problem with an internal at 7-10psi, but as you wind up the boost and increase the size of the turbo you will find the limits of an internal and an external gate comes into its own. I know that people on here have got their internal to behave, but it cost them several weekends, and a few remove and modifies/tunes etc before they got it [some tinarse will dispute this statement]. All us CBF'eds didn't bother we just strapped on an external and did the set and forget. I also reckon that an external is better for the future as well - if you end up increasing power/boost etc then the external has the headroom for 'growth'.
    1 point
  9. Honestly, better for you to take the train/pushy then to stuff around and drive without a turbo. You will have to make a pipe to join the manifold to the exhaust as already mentioned, plus remove the oil and water lines and block them, also have to stuff around with intake piping.Also, your car will barely run, be very very bad on fuel and an absolute dog to drive because the car computer (ecu) will be expecting a turbo. If you can't afford 100-200 for a second hand turbo, u'll spend that in a week or 2 on petrol driving the car running rich
    1 point
  10. Neil I have a gearbox for you. I bought it then went holinger instead. Unknown but reflected in the price
    1 point
  11. GT2860RS's are very prone to creeping. You can port out the internal gate hole a fair bit and still seals perfectly with the same flap. It's always fixed the problem for me.
    1 point
  12. Have been through these problems before on the XR6T's - ie biggish engine littlish turbo. You will find that most crappy internal gates are not very lineaar if you compare pressure applied to rod extension. We found that some actuators sold as a 8psi actuator would crack around 7psi and be at full extension by 30psi. We went through alot of actuators before finding the right one. you may need to test this for yourself. The other trick is to change the boost source for the actuator to right at the start of the scroll as you will find that with more flow the pressure at this point goes up when compare to the scroll outlet. On an xr6t if you had 12psi at the outlet at 5000rpm you may have upto 15psi at the start of the scroll. This obviously puts more pressure onto the actuator to open further - hence better boost control. PS - there is nothing wrong with internal gates in the right applications esspecially if you can get your hands on a dual sided actuator.
    1 point
  13. Consensus seems to be 300rwkw is the point where you need to be looking for a new exhaust manifold. Don't get a cheap Stainless one - get a 6boost or a Sinco customs:
    1 point
  14. Just my 0.02c re: BOV discussion. I think that it's a big mistake on anyone's part to say that externally venting BOV's, "make your car slower" "are just a wank" "aren't as good as standard" "are only an improvement if your stocker leaks" "are the best things ever made" "make the chix dig me and my mad styles" etc etc etc... Any and all of the above are RIDICULOUS statements when used as a generalisation of every car or even every 'line. If you have a standard R33 for example, and i mean STANDARD, running an aftermarket ext venting BOV will probably NOT help you run quicker times (and that's what we're talking about in this thread) than your standard, in order, factory BOV. Unless your standard valve is leaking, an ext venting BOV is for pose/style/personal preference value. BUT If you don't have a standard car, say you've done some mods in particular upped the boost and/or fitted a significantly larger front mounted intercooler, then an argument can be made, and I am, that in most cases the standard-sprung BOV won't perform as well as a after-market valve. You with me? Then I'll continue. I'm not for one minute implying that the standard valve isn't doing it's job or that it has 'failed' because of design flaw or missuse. Quite the opposite. As with almost all car components, it was designed with a specific task in mind. In our example's case, to reduce the slowing effect on the turbo by the air that remains pressurised in the system when the throttle butterfly closes AT STANDARD BOOST LEVELS. In some cases, the standard R33 valve (Mitsubishi component in fact), performs adequately at higher levels of manifold pressure. However, when you not only increase the pressure of the air in the system but also the volume, there is an even greater likelyhood of the valve not cutting it. You see, it now becomes not only a question of, "does the standard valve leak whilst producing positive manifold pressure?", but also of, "what is the limit of flow that the valve can achieve?". As well as being almost universally more stiffly sprung, (i.e. less prone to on-boost leaking), the aftermarket valves tend to be able to flow a great deal more air, esp. externally venting items. To illustrate the above, imagine what happens to the volume of air in the system when you add a larger front mount intercooler and associated pipework and up the boost a bit. The turbo works that bit harder innitially to presurise the system, (often noticed as slightly more initial lag compared to the smaller factory item or no cooler at all). When you back off, change gears etc and the throttle butterfly closes, there is a great deal more air in the system than with just a standard cooler/standard boost level. Where does this extra air go? Well in the case of a standard valve, back to the intake side of the turbine to relieve some of the reverse pressure on the comp wheel. How well does it do it? In my experience and that of many others, not particularly well. There is considerably more air trying to get back through the return line and sadly, the standard valve can't flow as much air as is typically desired. An externally venting unit does better in this scenario as it isn't limited by the volume of the system to release pressurised air into. To qualify the above (as i'm no race car engineer), i would direct anyone who cares to get to the bottom of the argument for and against, to look at the racers of turbo and supercharged vehicles around the world. It would be fair i believe, to cite Kart racing as a fair example of a sport that has many millions of dollars invested in R&D and the brains to make the dollars work! They run, albeit highly advanced, forms of externally venting BOV's! Too hard-core non-street for ya? Lets see if the guys that race all week at the Pamona Nationals in the states use them. Hmmm.. Some of the fastest 1/4 mile (we're still talking about that here remember) import beasts in the whole world and how many of them DON'T use externally venting BOV's? About none of them i'd reckon. In short, my problem isn't with standard valves or aftermarket valves or rice-boys etc... It's with people that make blanket statements like, Don't "Use an aftermarket blow off valve. (sorry rice boys)". Yes I read the post, yes I know the cooler was standard for your runs, yes i noticed that you upped the boost.... In your example, as i've said above, the standard valve would have been ample for your excellent times. You can only speak from your experience and I from mine. I beleive that this post was designed to help others achieve what you have and for that we should all be grateful. Your comment about BOV's wasn't helpful to anyone. Regards, Adrian
    1 point
  15. Hey, there seems to be something wrong with the trader feedback feature. I've tried everything but it still comes up with an error. Please fix as I'd like to leave some positive trader ratings for some people that I've recently purchased off via SAU. Cheers.
    -1 points
  16. Meh I give up. No pics for you Jamie...
    -2 points
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