Seedster
08-18-2001, 07:05 AM
Ok....so I've been researching the use of nitrous for the passed 3 or so weeks as I'm about to setup a pretty badass 55-shot dry system on a friends 98 accord 4cyl for his birthday. I've done a LOT of reading and I understand what it's all about. I'm gaining more and more confidence as the days go by of how safe it could be if installed and tuned properly. I know i know "cheap thrills"....."cheating"...yada yada yada. But before I seriously take consideration into buying a kit....I had a few questions to ask anyone who knows.
1) I've heard rumors about the 2.8L (328) and 3.2L (96+ m3) engines being changed into aluminum blocks from cast iron as the pre 96 (i.e. 95 m3 or 92-95 325) and that the heat generated from nitrous would simply melt the internals of the car. Is this true? From what I've read, nitrous will yeild the same boost/increase in temperature as a turbo or S/C setup would (albeit the turbos/superchargers increase boost mechanically while nitrous does it chemically). So wouldn't that mean/apply the same towards S/C's and turbos? But at the same time countless 328's and 96+ m3's get S/Cs all the time with no problems.
2) I'm not too familiar with my car's timing (96 328i) but I know its self adjusting. Can it be adjusted? If I was to run nitrous it's recommend that the timing be retarded just a tad (I'm aware of the ill effects). Can I do so? Also, if I cant adjust the timing...does anyone know off hand if I could use an MSD Ignition System (as seen here: http://store.summitracing.com/partdetail.asp?part=22441 )? Basically what it does is send spark to the plugs (controlled by a computer so you could set it to retard the timing for example only at WOT, which is when the nitrous is activated and spraying) but I've only seen it applied on cars that have spark plug wires, like hondas and domestic muscle cars (not on cars that have coils like we have). Would I still be able to set the system up? If so, how?
3) It's also suggested that fuel coming to the cyclinders be raised as well. With the imports...they can buy a Fuel Pressure Regulator (as seen here: http://store.summitracing.com/partdetail.asp?part=13713 ) which is just tapped into the fuel line before its sent into the fuel injectors. Would there be anywhere for me to tap this regulator into? On the honda's it goes here (you can either fit the FPR or the Fuel Pressure Gauge):
http://members.roadfly.com/seedster/page2.jpg
If anyone has installed nitrous (I doubt anyone) on a bmw (besides the dude with the 750iL) and especially on a 96+ one...can you please let me know of any info that you have on their system? Has it been running good or bad? I'd like to hear less of the "dont do it man your engine will explode stuff" and more constructive critism if anything. I've had a sudden need for speed recently (especially being more confident that I could setup a properly running nitrous system although I'm not quite sure how to do it on the bimmer) and $400 is just way within my reach to let it pass by. I hope you guys understand :D
1) I've heard rumors about the 2.8L (328) and 3.2L (96+ m3) engines being changed into aluminum blocks from cast iron as the pre 96 (i.e. 95 m3 or 92-95 325) and that the heat generated from nitrous would simply melt the internals of the car. Is this true? From what I've read, nitrous will yeild the same boost/increase in temperature as a turbo or S/C setup would (albeit the turbos/superchargers increase boost mechanically while nitrous does it chemically). So wouldn't that mean/apply the same towards S/C's and turbos? But at the same time countless 328's and 96+ m3's get S/Cs all the time with no problems.
2) I'm not too familiar with my car's timing (96 328i) but I know its self adjusting. Can it be adjusted? If I was to run nitrous it's recommend that the timing be retarded just a tad (I'm aware of the ill effects). Can I do so? Also, if I cant adjust the timing...does anyone know off hand if I could use an MSD Ignition System (as seen here: http://store.summitracing.com/partdetail.asp?part=22441 )? Basically what it does is send spark to the plugs (controlled by a computer so you could set it to retard the timing for example only at WOT, which is when the nitrous is activated and spraying) but I've only seen it applied on cars that have spark plug wires, like hondas and domestic muscle cars (not on cars that have coils like we have). Would I still be able to set the system up? If so, how?
3) It's also suggested that fuel coming to the cyclinders be raised as well. With the imports...they can buy a Fuel Pressure Regulator (as seen here: http://store.summitracing.com/partdetail.asp?part=13713 ) which is just tapped into the fuel line before its sent into the fuel injectors. Would there be anywhere for me to tap this regulator into? On the honda's it goes here (you can either fit the FPR or the Fuel Pressure Gauge):
http://members.roadfly.com/seedster/page2.jpg
If anyone has installed nitrous (I doubt anyone) on a bmw (besides the dude with the 750iL) and especially on a 96+ one...can you please let me know of any info that you have on their system? Has it been running good or bad? I'd like to hear less of the "dont do it man your engine will explode stuff" and more constructive critism if anything. I've had a sudden need for speed recently (especially being more confident that I could setup a properly running nitrous system although I'm not quite sure how to do it on the bimmer) and $400 is just way within my reach to let it pass by. I hope you guys understand :D