Increase horsepower

[barische]

intake, airflow, decat, take the a/c out these are very easy things to do, or u can go to port polish head,
change hartge 2.1 liters
valve springs, valve seats
camshaft

lightweights flywheel also one another thing about it is that u can have a lightweight flywheel but all the weight might be at the outside of the wheel and this will be almost same as having an stock flywheel but when u get an lightweight flywheel with most weight near the center it is much easier to turn so this makes ur car rev faster just like other people said before.

one thing about flywheels is that the i heard that some of them have a very annoying chatter at idle.

u can make sure by the design that most the weight is near the center.

also u can get lightweight wheels, the bigger u go the inertia increases so it is harder to turn a 18" wheel then turning an 15". O.Z. makes super light weight wheels almost weight like 19 lbs for an 18" wheel which is really good. having sticky tires are also a plus. this is why dragsters use small wheels with big fat sticky tires. also the tire pressure at the fat drag tires not high.

also there is clutch stops and short shift kits

i learned most of that inertia and center of mass crap at physics class we also did alot of labs on these issues. especially the flywheel. it makes so much difference to having the most weight near the center.

[Mendi3]

Originally Posted by 1996 328ti

DASC

Total agreement!

[DustenT]

Originally Posted by John W

The M44 is a very tough engine to get power out of without going to forced induction. The DASC is so popular because it is a well-built kit that does not hurt the day-in, day-out reliability of the car (like so many other forced induction kits do). It also delivers the horsepower it advertises.

Light flywheels will really help the car rev, but by the time you install one along with a new clutch you will be shelling out quite a bit of $$. Still, it's a good upgrade if you need to replace the clutch anyways ...

You could change the crank and pistons (if any quality parts are available??). I believe you can reliably punch the bottom end out to 2.1 liters.

The stock exhaust on the 318ti is very good. You would be hard pressed to find an aftermarket system that flows better. And many out there actually produce less horsepower than the stock system.

Grassroots Motorsports did a brief series on the 318ti in the late ’90s. They found that switching to synthetic oil yielded a nearly 5hp improvement at 4200 rpm. While it barely improved peak horsepower at all, the additional 5hp in the meat of the rev band is welcome since these cars don't really wake up until 5k rpm. The switch is worthwhile, cheap and noticeable.

They also found switching to Nology racing plug wires produced 1.5 peak hp over new stock wires. Not a huge gain, but worth it for a ~$85 part.

Fogging the airbox is also cheap. It *feels* like it adds a bit of power up top, but I doubt the gain is more than 2-3 hp with a K&N drop-in, if anything.

Making sure that everything else is in good condition (fuel filter, 02 sensor, etc. etc.) will ensure you're making the most of what you have.

In short, you're not going to see huge (or even moderate) horsepower gains without spending a lot of money.

Grassroots Motorsports is going to do a buildup on a e30 318 with an m42. They want to race it, so what are they going to use????????

DASC, surprise!

I think it will be in the January edition.

[aceyx]

Doesn't the definition of "grassroots" prohibit forced induction?

[DustenT]

Originally Posted by aceyx

Doesn't the definition of "grassroots" prohibit forced induction?

Grassroots = down-to-earth, no-B.S. information for those fixing up and racing their cars.

Sorry, I have the magazine in front of me.

Page 50, December issue spotlights their future BMW project. 1991 e30 318is. It says "can a bolt-on supercharger from Downing/Atlanta turn our $700 318is into an m3 beater for a fraction of the cost?"

Does anyone know if the January edition is out yet. I can only get it at the ghetto-ass grocery store in town, and I don't like going there.

[cali-ti]

Originally Posted by AlaskaBlue

I went with the TMS 9lb fllywheel and a sachs clutch. It chatters some but it really isn't bad. I have heard the M5 clutch on the UUC unit adds a significant amount of weight to the whole assembly. That is just what I have heard though.

well, i really would like to reduce/eliminate the chatter (gf/wife acceptance) and don't care that much about the added weight. the increased power holding would also be a nice feature. i figure with that setup, i really shouldn't have to replace it again. i believe when all is said and done, it's still a little lighter than stock.

[aceyx]

Originally Posted by DustenT

Grassroots = down-to-earth, no-B.S. information for those fixing up and racing their cars.

I was always under the impression that it was all motor performance. Good to know!


If they're pitting the E30 against an E36, it should be pretty easy to out-drag the M3 as long as they've got enough rubber underneath it. That's the only limitation I can forsee.

Not really my preferred method of racing though.

[HuGo]

How do you make the engine from 1.9 to 2.1 ?? I read it in this thread. Is that doing something to the computer/engine or when putting in performance parts??

[AlaskaBlue]

you bore out the block, buy larger diameter pistons, increase stroke of the crankshaft, and possibly deck the pistions.
A guy on bf.c did that to his M42 and was rewarded with 168rwhp..more than a DASC. He used and M47 crankshaft (M47N is also useable) S50 pistons, M42 connecting rods, M44 block, and an M42 head.

The process would entail removing the current engine, tearing it down and basically rebuilding it.

[HuGo]

Originally Posted by AlaskaBlue

you bore out the block, buy larger diameter pistons, increase stroke of the crankshaft, and possibly deck the pistions.
A guy on bf.c did that to his M42 and was rewarded with 168rwhp..more than a DASC. He used and M47 crankshaft (M47N is also useable) S50 pistons, M42 connecting rods, M44 block, and an M42 head.

The process would entail removing the current engine, tearing it down and basically rebuilding it.

See, i dont know anything about that. My dad could do all this stuff, but he has no time, and i dotn have money for parts that cost 1g each.

[HuGo]

How many horses does DASC give you?? so if stock is like 140 hp, you end up with how much? Lets say like right now i got stock motor with just cosmo intake and exhaust. If i wanted to get the DASC, do i just need the DASC and thats it, or would i need extra stuff/parts

[DustenT]

Originally Posted by 1996Bmw318TI

How many horses does DASC give you?? so if stock is like 140 hp, you end up with how much? Lets say like right now i got stock motor with just cosmo intake and exhaust. If i wanted to get the DASC, do i just need the DASC and thats it, or would i need extra stuff/parts

DO SOME RESEARCH!! Search this forum, search google.

Please try to do some research before you post a question. This is a discussion forum not a Q and A session.

[Tyler]

Originally Posted by 1996Bmw318TI

How many horses does DASC give you?? so if stock is like 140 hp, you end up with how much? Lets say like right now i got stock motor with just cosmo intake and exhaust. If i wanted to get the DASC, do i just need the DASC and thats it, or would i need extra stuff/parts

Use the search function and this will answer 95% of the questions you have asked on this forum. www.downingatlanta.com www.understeer.com

[bimmer95]

FYI, the UUC Stage 2 flywheel with the M5 clutch is still about 13 lbs lighter than the stock flywheel/clutch combo. The total weight is the same as a 12lb aluminum flywheel with a M3 clutch.

[cali-ti]

Originally Posted by bimmer95

FYI, the UUC Stage 2 flywheel with the M5 clutch is still about 13 lbs lighter than the stock flywheel/clutch combo. The total weight is the same as a 12lb aluminum flywheel with a M3 clutch.

are you running this setup? if so, how do you like it? how long have you had it? how much rattle do you get at idle and how loud is it?