Normal_aspirated Clutched January 31, 2006 Share January 31, 2006 will SC put any further stress on engine parts? ↡ Advertisement Link to post Share on other sites More sharing options...
Sheltie2306 Neutral Newbie February 1, 2006 Share February 1, 2006 I read this from somewhere, and it sounds reasonable to me, would like to get some opinion. 1. Assume the drive train experiences an X amount of torque stress in first gear on a stock engine. 2. Typically, the gear ratio difference between 1st gear and 2nd gear is about 1.5 times, let Link to post Share on other sites More sharing options...
Driver Neutral Newbie February 1, 2006 Share February 1, 2006 dun dare to try.... car too lock kok liao... later SC kick in.. my wheels choing forward but my body left behind stationary on the spot... Link to post Share on other sites More sharing options...
Tanzy Clutched February 1, 2006 Share February 1, 2006 Everything in, including labour, close to $14,000. >100bhp and >100Nm gains. Link to post Share on other sites More sharing options...
Tanzy Clutched February 1, 2006 Share February 1, 2006 The SC starts to spool in proportion to engine rpm but boost is not entirely linear. No positive pressure until about 2500-3000rpm depending on supercharge type. Then boost will increase linearly until some point where it holds or drops slightly. This is due to the efficiency of the supercharger and the engine rpm increasing hence more air is taken in by the cylinder. Big pulley SC spins slower. Small pulley SC spin faster. Faster turbine = more boost. Link to post Share on other sites More sharing options...
Tanzy Clutched February 1, 2006 Share February 1, 2006 (edited) In real life it never works out that way. The gearbox has a manufacturer tolerance and max torque if can run without exploding. For example, the automatic ZF HZ19 gearbox mated to the 2.5 and 3.0L E46 3 series, has a max operating tolerance of 325Nm coming out from the engine. You will need to find out exactly how much your gearbox can take and stay within the upper limit. Of course you can exceed, like me, but then you run the risk of the gears stripping. Edited February 1, 2006 by Tanzy Link to post Share on other sites More sharing options...
Sheltie2306 Neutral Newbie February 1, 2006 Share February 1, 2006 Thanks. So I guess you SC the BM ?? Link to post Share on other sites More sharing options...
Tanzy Clutched February 1, 2006 Share February 1, 2006 There are many many SC BMWs out there. A 3L with SC can easily take on Evos and WRXs stand no chance against them. We have seen automatic SC 5 series beat modded WRX to quarter mile! It's not just about bolting on the SC. There are other concerns like fuel pump, fuel pressure, injector size, ECU and etc. All these must be taken into account when going above 6psi on an NA engine. Link to post Share on other sites More sharing options...
Sheltie2306 Neutral Newbie February 1, 2006 Share February 1, 2006 6 psi boost should be able to achieve about 30% improvement over the original. It's definitely very significant on a 3L engine. Just curious, what Link to post Share on other sites More sharing options...
Turbonetics 2nd Gear February 1, 2006 Share February 1, 2006 dun dare to try.... car too lock kok liao... later SC kick in.. my wheels choing forward but my body left behind stationary on the spot... lol.... Link to post Share on other sites More sharing options...
Biatch Neutral Newbie February 1, 2006 Share February 1, 2006 Used to hear that an owner of a BMW 318i sedan supercharged his car till it could perform as well as a 325i. But wonder how he circumvent the viacom checks Link to post Share on other sites More sharing options...
Normal_aspirated Clutched February 1, 2006 Share February 1, 2006 Everything in, including labour, close to $14,000. >100bhp and >100Nm gains. ouch......so exp? Wats the other necessary parts or mods beside the SC unit, e.g. piggybaggy, upgrade injectors, etc? Link to post Share on other sites More sharing options...
Gs_command Neutral Newbie February 2, 2006 Share February 2, 2006 1 quick question. Where can 1 TC or SC his ride? Mine is a Jap. Thanks Link to post Share on other sites More sharing options...
Turbonetics 2nd Gear February 2, 2006 Share February 2, 2006 not many workshop do SC compare to TC... cos SC u got to find the right model for each car.... otherwise have to import.... whereby for TC,the turbo is universal.... just need to customise the piping for diff cars... Link to post Share on other sites More sharing options...
Gs_command Neutral Newbie February 2, 2006 Share February 2, 2006 Thanks. Any good mech to recommend? Any idea on pricing? Link to post Share on other sites More sharing options...
Turbonetics 2nd Gear February 2, 2006 Share February 2, 2006 sorry,i have no idea.... Mcwell used to quote me a jackson racing supercharger for my Esi at ard $3k without tuning.... what car do u drive??? y not consider TC??? Link to post Share on other sites More sharing options...
Gs_command Neutral Newbie February 2, 2006 Share February 2, 2006 TC can be considered. Any idea where to install and costs? Link to post Share on other sites More sharing options...
Turbonetics 2nd Gear February 2, 2006 Share February 2, 2006 i know of a few places.... cost ard $4-$5k.... ↡ Advertisement Link to post Share on other sites More sharing options...
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