polley 916 Report post Posted January 27, 2011 I've read abit about how turbos increase power In engines but is it possible to have a turbo setup that actually reduces power as I'm worried about my auto trans in my e28 m30b34. Can you have like a reverse impeller forcing air back out the intake pipe and pushing some of the exhaust back into the combustion chamber. Any of u guys can recommend a tuner who can make it have less power than I had in NA form with a turbo setup thanx Quote Share this post Link to post Share on other sites
huff3r 347 Report post Posted January 27, 2011 (edited) I've read abit about how turbos increase power In engines but is it possible to have a turbo setup that actually reduces power as I'm worried about my auto trans in my e28 m30b34. Can you have like a reverse impeller forcing air back out the intake pipe and pushing some of the exhaust back into the combustion chamber. Any of u guys can recommend a tuner who can make it have less power than I had in NA form with a turbo setup thanx For less power, you could just constrict the intake for that sort of effect. A reverse turbo would be a pointlessly expensive way of curbing your power.... Also, changing the tune slightly, perhaps less fuel and retarding the timing slightly.... might save you some gas and cut power... Edited January 27, 2011 by huff3r Quote Share this post Link to post Share on other sites
mark247 38 Report post Posted January 27, 2011 Just put the turbo on upside down mate Quote Share this post Link to post Share on other sites
topcat 11 Report post Posted January 27, 2011 brick under the gas pedal also works from what i've heard.cheap too Quote Share this post Link to post Share on other sites
Creaver 55 Report post Posted January 27, 2011 No offence, but this sounds like a bit of a stupid topic? Why would you do that? Quote Share this post Link to post Share on other sites
CamB 48 Report post Posted January 27, 2011 Because he likes strange topics? On a marginally related note: Quote Share this post Link to post Share on other sites
Braeden320 0 Report post Posted January 27, 2011 On a marginally related note: Haha best thread on the interweb ever Quote Share this post Link to post Share on other sites
mark247 38 Report post Posted January 27, 2011 No offence, but this sounds like a bit of a stupid topic? Why would you do that? Can you not find the humor in this at all? Quote Share this post Link to post Share on other sites
mark247 38 Report post Posted January 27, 2011 Because he likes strange topics? On a marginally related note: I quite enjoyed this one too http://www.audiforums.com/forum/showthread.php?t=80267 Quote Share this post Link to post Share on other sites
_BRS_ 199 Report post Posted January 27, 2011 Have you tried driving round in reverse? Just a thought. Will keep Kms down on the engine too. Quote Share this post Link to post Share on other sites
CamB 48 Report post Posted January 28, 2011 Yeah the Audi sand extrude hone one's pretty funny, although surely BS. I remember this one (such a long time ago too): http://my.is/forums/f87/crashed-my-baby-147582/ It was wet out (yes, I had trac off) and lost the back end in the right hander near my dad's house. I hit the a tree pretty hard with passenger side rear door. Fortunately, I'm OK and nobody else got hurt. It was pretty dark so it was hard to tell how focked the car was. I know I'll get flamed for asking this, but yesterday I got new tires (S-03). Last night, I washed my car. I armor all'ed the sidewalls and thought since the tires were new I would put armor all over them so the whole tire would be jet fockin' black. It looked hella sweet. You guys don't think this might have caused my wreck, do you? I know Armor All is a little slick but I wonder if there was something else wrong with the tires also, or something? Quote Share this post Link to post Share on other sites
MLM 57 Report post Posted January 28, 2011 The turbo setup could work in reverse however i think you may run ito a few problems.. 1) if you plumb in the turbo in reverse finding a manifold may be hard and you may have to custom make one which is expensive. You could try one from a left hand drive car though. 2) because you are blowing exhaust back into the engine. The turbo will be really laggy and the power reduction will be far to late in the rpm range. Ie tyou will have to thrash it to get the power reduction benifit.. 3) you would have to reverse the oil flow in the turbo also, this might require an additional oil pump as your current one is geared to work for power making situations. 4) An interheater (oposite of a cooler) would be needed. I think wrx's had these from factory try your local wreckers. I recomend a reverse supercharger setup. This way you would have a linear power reduction that would work from idle. You could plumb the charger to suck from the inlet and blow into the exhust. a bit like EGR setup only backwards plus you get that cool supercharger whine. Once your done, adding water injection in the exhaust will also help reduce power on hot days....... Quote Share this post Link to post Share on other sites
huff3r 347 Report post Posted January 28, 2011 Of course you're all going the wrong way about it. Remove the engine and the trans if thats what your worried about, then cut holes in the floor, stick your feet through them and use them to push the car along whilst making "pshhht" noises every few seconds. Wham. Reverse working turbo, with a power decrease, no worrying autobox, and massive fuel savings. Ooops, that should be (making "thhhsp" noises) as it is a reverse setup. Quote Share this post Link to post Share on other sites
chippies 0 Report post Posted January 28, 2011 you could just plumb the turbo back into the exhaust and then set a low wastegate spring pressure so you boost less. therefore you get no power and all sound. Quote Share this post Link to post Share on other sites
mark247 38 Report post Posted January 28, 2011 2) because you are blowing exhaust back into the engine. The turbo will be really laggy and the power reduction will be far to late in the rpm range. Ie tyou will have to thrash it to get the power reduction benifit.. I laughed haha. Quote Share this post Link to post Share on other sites
kerry 10 Report post Posted January 28, 2011 the whole thing is a laugh.... Quote Share this post Link to post Share on other sites
kerry 10 Report post Posted January 28, 2011 polly want a cracker Quote Share this post Link to post Share on other sites
mrad01 0 Report post Posted January 28, 2011 I quite enjoyed this one too http://www.audiforums.com/forum/showthread.php?t=80267 ^^^^ No friggen way!!!!! IDIOTS!!!!! Incredible read...must be a joke - has to be. Quote Share this post Link to post Share on other sites
Grant 4 Report post Posted January 28, 2011 ^^^^ No friggen way!!!!! IDIOTS!!!!! Incredible read...must be a joke - has to be. You think? Quote Share this post Link to post Share on other sites
*Glenn* 854 Report post Posted January 28, 2011 It was discussed on here 2 or 3 years ago....can't find the link though Quote Share this post Link to post Share on other sites
Dogballs 102 Report post Posted January 31, 2011 The turbo setup could work in reverse however i think you may run ito a few problems.. 1) if you plumb in the turbo in reverse finding a manifold may be hard and you may have to custom make one which is expensive. You could try one from a left hand drive car though. 2) because you are blowing exhaust back into the engine. The turbo will be really laggy and the power reduction will be far to late in the rpm range. Ie tyou will have to thrash it to get the power reduction benifit.. 3) you would have to reverse the oil flow in the turbo also, this might require an additional oil pump as your current one is geared to work for power making situations. 4) An interheater (oposite of a cooler) would be needed. I think wrx's had these from factory try your local wreckers. I recomend a reverse supercharger setup. This way you would have a linear power reduction that would work from idle. You could plumb the charger to suck from the inlet and blow into the exhust. a bit like EGR setup only backwards plus you get that cool supercharger whine. Once your done, adding water injection in the exhaust will also help reduce power on hot days....... I agree completely. Also, I believe some people in kenya have plumbed the exhaust pipe back into the intake, which reduces emissions too.. Quote Share this post Link to post Share on other sites
328bema 18 Report post Posted March 9, 2011 I've read abit about how turbos increase power In engines but is it possible to have a turbo setup that actually reduces power as I'm worried about my auto trans in my e28 m30b34. Can you have like a reverse impeller forcing air back out the intake pipe and pushing some of the exhaust back into the combustion chamber. Any of u guys can recommend a tuner who can make it have less power than I had in NA form with a turbo setup thanx Lmao, this has to be a joke Quote Share this post Link to post Share on other sites
pureboiracer 0 Report post Posted March 9, 2011 just plumb the turbo in as normal but instead of going from the intercooler to the intake manifold plumb it straight into your dash so then you dont have to use your aircon.. no aircon=less gas.... duhhh Quote Share this post Link to post Share on other sites
polley 916 Report post Posted March 9, 2011 I think you would want to intercool the air first, as the air coming from the turbo could potentially be quite warm. Quote Share this post Link to post Share on other sites
pureboiracer 0 Report post Posted March 10, 2011 (edited) ^ i meant that, however re reading it it didnt quite come across just take the intercooler out in winter Edited March 10, 2011 by -Oli- Quote Share this post Link to post Share on other sites
