Nice. Did you change the tune to request the 32psi vs 29psi previously, or only the hardware change and now you’re seeing 32psi at the manifold?
balee dat!
-kriss kross
http://schnell-engineering.com/blog/?p=153
[quote=notorious VR’s blog on schnell-engineering.com]Today I finally got around to installing my ER’s… after a few people posting that they’re such a pain in the ass to install I was expecting more, but they went in without a hitch… little to no mods needed and got it the old FMIC out and the ER’s in, in under 3 hours.
I’ll be honest… I was expecting more… people talking about pressure drop and all that jazz, but I noticed no increase in boost at all after switching to ER’s…. I’ll have to wait until the weather gets warmer to take some logs that I can compare to but from what I can tell there is no difference between my FMIC setup and now the ER’s except that the car is even more stealth now with no pipes showing through the grills.Would I do it again, go from FMIC to ER’s? Probably not unless I see a huge difference in temps which I also doubt I will see.
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I made a revision to get to 32 psi… we actually switched back to mbc on this last rev.
We cut a 1/10 second off the fats time from just switching ic’s.
Retune cut 3/10ths total.
ill look when I get a chance to put up a graph from the same file on both.
Right on. So those accel graphs aren’t really just FMIC vs ER’s. Also, I know tenths of a second on FATS are way tougher to increase when you’re already that low, but I have to say that I’m surprised that ~.67g to .76g was only .3 sec in FATS. Care to share what the final FATS time was?
Also, I’m really interested in the MBC aspect. I’ve got an MBC that I haven’t played around with yet. You don’t hear of too many guys going from N75 to MBC, so you don’t hear much comments on how they like/dislike or details about spool/part throttle. You usually hear the big turbo guys go from MBC to N75 tune and rave about the smoothness though. Let me know what he thinks about driving smoothness, and if the boost ramp up/spool is noticable affected with MBC vs N75. I may have to experiment with my hallman in the future and see what I like best.
Fats are for slow car! Well that’s what ballsack thinks
no fun
no fun
no fun
I’ve been in the car on n75 and it was pretty smooth. I’ll ask about the mbc part throttle and overall smoothness. I don’t see any difference in spool beteween the two especially with the cracking pressure at 18-19 psi.
2.05 second fats
http://i714.photobucket.com/albums/ww142/judeisnotobscure/Picture0001.png
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That was my initial impressions… I did update my AZ thread saying that I did notice a difference after doing some logging runs… I actually had to turn down the N75 duty because I was seeing more boost as well.
As for the temp drops, that is the one area I was a little bit disappointed in. They’re better, but not that much better IMO.
They are however worth it when going over 25-26 psi since they flow much better then the FMIC.
I frankly find it hard to believe there’s a temp drop at all. I’m certainly not a mechanical engineer or anything, so that would explain part of it, but man…heat exchange at those speeds…and it’s effective? Pretty incredible.
more velocity, more mass flow over the exchanger in the simplest terms… what feels cooler a 5mph breeze or a 50mph breeze
if the breeze feels cool on my face, it’s because of the removal of moisture from my face, is it not? Anyway, in this case, isn’t the ‘breeze’ giving up heat to the ‘face’ (charged air being the breeze…face being the intercooler)?
clearly it works, I’m not doubting it. Just seems like a weird fuckin process to all happen so quickly. Pretty brilliant how it all works actually.
if the air temp is lower than body temp the air will convect heat away naturally in addition to the 100W of heat your body loses to net radiant heat transfer. evaporation of sweat is a neat trick for your body to cool down even faster, or to cool when air temp is at or higher than body temp (you’d normally get hotter).
the intercooler works by convection of heat into the metal from the air charge, conduction through the metal, then convection of heat out of the metal into the passing air. More air mass passing by the heat exchanger will increase the rate of convection,
Good stuff. Thanks.
I was digging through a research paper about this stuff yesterday and digging the math and everything. Just seems crazy that it works, but it works.
Interesting indeed
if you want another good read, look into multi plate distillation its a very impressive process to witness
Nice. If you’re not spooling any faster, what’s the motivation for the MBC? Simplicity and being able to change it on the fly?
Bingo
your about to have more RS6r’s numbers shortly 