Jump to content
SAU Community

Recommended Posts

yeah I really have NFI about that whole scene so found that to be a very informative read... cheers for posting

anybody watch the Lance Armstrong interview?... thought he gave a pretty good account of it all but unfortunately too many people are waaaay too butthurt to let him off the hook... he's pretty well fcked

are we really that naive to think the guys doing the hardest feat of physical endurance on the planet earth aren't using drugs to help them recover from day after day after day of brutal riding... grow up FFS

he's an idiot for the way he's handled the whole thing and sounds like a bit of an asshole... but lets face it, most guys that are that driven would be a c*nt to live with

I tried human growth hormone somatropin for a week not long ago. The stuff is bloody amazing. I was using 5-7 units a day which is really high. To actually lean up and look good within a week is actually something considering u need to be on it for a few months at least. What I noticed though was that my blood glucose had increased 10 fold and was giving myself overall per day 15 times more insulin that what I actually need. Think about it...insulin - very powerful anabolic hormone but also can make you fat very fast too. Hgh prevents the the fat gain since the hormone itself feeds on insulin. Quite interesting actually when you experience it yourself.

Downside...too expensive :)

yeah I really have NFI about that whole scene so found that to be a very informative read... cheers for posting

anybody watch the Lance Armstrong interview?... thought he gave a pretty good account of it all but unfortunately too many people are waaaay too butthurt to let him off the hook... he's pretty well fcked

are we really that naive to think the guys doing the hardest feat of physical endurance on the planet earth aren't using drugs to help them recover from day after day after day of brutal riding... grow up FFS

he's an idiot for the way he's handled the whole thing and sounds like a bit of an asshole... but lets face it, most guys that are that driven would be a c*nt to live with

we sat down and watched it at work (work in a bike shop for those that don't know). it was all summed up in the first 30 seconds by the first 4 questions. the rest was just a rehearsed public announcement really. at the end of the day, yes most of the people he was racing were also on the gear, but just not to the extent that he was.

i don't think so many people would be so up in arms about lance if he hadn't been so arogant about it over the years. he's sued a few people for claiming he was a drug cheat, etc (which i dare say he is going to get sued over now).

i've never been much of a fan of lance throughout his career. simply because of his personality. i wouldn't say i'm a "hater" though. but i'm not surprised he was a cheat. i think that in years to come other people will be found out to be cheats, some of which i am fans of, but their dominance is just too much at that high level to be clean. at the end of the day, the drugs come before the tests for them.

as for that article, that was an interesting read. it was good to get a somewhat open opinion on the whole thing, rather than just the usual "you i take this and it's great"

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


  • Latest Posts

    • So it's a ginormous undertaking that will be a massive headache but will be sorta cool if pulled off right. And also expensive. I'm sure it'll be as expensive as buying the car itself. I don't think you could just do this build without upgrading other things to take the extra power. Probably lots of custom stuff as well. All this assuming the person has mechanical knowledge. I'm stupid enough to try it but smart enough to realize there's gonna be mistakes even with an experienced mechanic. I'm a young bloke on minimum wage that gets dopamine from air being moved around and got his knowledge from a Donut video on how engines work.]   Thanks for the response though super informative!
    • Yes, it is entirely possible to twincharge a Skyline. It is not....without problems though. There was a guy did it to an SOHC RB30 (and I think maybe it became or already was a 25/30) in a VL Commode. It was a monster. The idea is that you can run both compressors at relatively low pressure ratios, yet still end up with a quite large total pressure ratio because they multiply, not add, boost levels. So, if the blower is spun to give a 1.4:1 PR (ie, it would make ~40 kPa of boost on its own) and the turbo is set up to give a 1.4:1 PR also, then you don't get 40+40 = 80 kPa of boost, you get 1.4*1.4, which is pretty close to 100 kPa of boost. It's free real estate! This only gets better as the PRs increase. If both are set up to yield about 1.7 PR, which is only about 70 kPa or 10ish psi of boost each, you actually end up with about 1.9 bar of boost! So, inevitably it was a bit of a monster. The blower is set up as the 2nd compressor, closest to the motor, because it is a positive displacement unit, so to get the benefit of putting it in series with another compressor, it has to go second. If you put it first, it has to be bigger, because it will be breathing air at atmospheric pressure. The turbo's compressor ends up needing to be a lot larger than you'd expect, and optimised to be efficient at large mass flows and low PRs. The turbo's exhaust side needs to be quite relaxed, because it's not trying to provide the power to produce all the boost, and it has to handle ALL the exhaust flow. I think you need a much bigger wastegate than you might expect. Certainly bigger than for an engine just making the same power level turbo only. The blower effectively multiplies the base engine size. So if you put a 1.7 PR blower on a 2.5L Skyline, it's like turboing a 4.2L engine. Easy to make massive power. Plus, because the engine is blown, the blower makes boost before the turbo can even think about making boost, so it's like having that 4.2L engine all the way from idle. Fattens the torque delivery up massively. But, there are downsides. The first is trying to work out how to size the turbo according to the above. The second is that you pretty much have to give up on aircon. There's not enough space to mount everything you need. You might be able to go elec power steering pump, hidden away somewhere. but it would still be a struggle to get both the AC and the blower on the same side of the engine. Then, you have to ponder whether you want to truly intercool the thing. Ideally you would put a cooler between the turbo and the blower, so as to drop the heat out of it and gain even more benefit from the blower's positive displacement nature. But that would really need to be a water to air core, because you're never going to find enough room to run 2 sets of boost pipes out to air to air cores in the front of the car. But you still need to aftercool after the blower, because both these compressors will add a lot of heat, and you wil have the same temperature (more or less) as if you produced all that boost with a single stage, and no one in their right mind would try to run a petrol engine on high boost without a cooler (unless not using petrol, which we shall ignore for the moment). I'm of the opinnion that 2x water to air cores in the bay and 2x HXs out the front is probably the only sensible way to avoid wasting a lot of room trying to fit in long runs of boost pipe. But the struggle to locate everything in the limited space available would still be a pretty bad optimisation problem. If it was an OEM, they'd throw 20 engineers at it for a year and let them test out 30 ideas before deciding on the best layout. And they'd have the freedom to develop bespoke castings and the like, for manifolds, housings, connecting pipes to/from compressors and cores. A single person in a garage can either have one shot at it and live with the result, or spend 5 years trying to get it right.
    • Good to know, thank you!
    • It's a place for non car talk. There's whoretown which is general shit talking. But also other threads coving all sorts of stuff(a lot still semi car related)
    • Looked it up. It sounds so expensive lmao I'd rather not. Awwwww but I just love that sound
×
×
  • Create New...