where can i look for power ... M30 ... need good ideas =]

[bahnstormer]

hello guys

i've read www.bmwe34.net's "reciepe for power" but there are some
people on the board that disagree, or have different ideas...

so i'd like everyone's opinion on the best path to take for more power


i have a 91 535i 5spd approaching 160,000 miles.
EAT chip, 3.64LSD are the extent of my power bolt ons

I was strongly considering ireland engineering's headers, which
are a copy of RD headers....but for only 300 bucks

then i wanted to get the eisenmann race muffler and run that
with straightpipes to my cat.

on the intake side the dinan intake manifold came into play,
but bill r said it wasn't a good idea...that i should just send
my manifold to extrude honing

as far as the intake itself goes, well there is a company
here in my state, modern performance inc that was in the february
issue of grassroots motor sports

they have a MAF conversion, with open air cone filter that
showed a 25hp gain on a m5 motor....at the wheels...and
the cool thing about that was u could tune it with your laptop
so if u saw a rich condition at full throttle at 5700rpm, u could
lean it out a bit...

now this setup cost clost to $1000 dollars, but i think that it
has great expandability - so when i'm ready to move up to a turbo
then i'll have a lot of use for it...

my last idea was to get rid of the stupid dual mass flywheel....
this too though, would be an expensive job....


so what do you think i should do? in what order? let me
know any ideas comments you might have...thanks guys!

-martin

[Jose]

Your dual mass flywheel can easily be replaced by a single unit from a E28, bolts right on and should save alot of weight. As to pumping out raw power, there is no substitute for a turbo conversion. We installed a kit on a 535 e28 last weekend for a Belgian customer using a Garret GT35 turbo and huge intercooler fo which we had to some cutting and welding but the end result was ballistic. A friend of ours owns all M3 up to date and he challenged the 28 with his 2003 M3 and was not able to get passed, that should give you an idea wat too expect.

There'sonly one downside in using such a large turbo and that is turbolag. You could add NOS to the package, that completly kills the lag.

[kyleN20]

how much would a turbo kit cost, and im not talking about the 745i conversion, im talking pure proformance turbo kits. like you were talking jose. but on that note, how much will a 745i kit cost? how much power will it give, will a chiped 535i with a 745i turbo be at m5 level?'

thanks

kyle

[632 Regal]

will help get the car moving then put on a 250HP No2 kit for mid to top end.

hello guys

i've read www.bmwe34.net's "reciepe for power" but there are some
people on the board that disagree, or have different ideas...

so i'd like everyone's opinion on the best path to take for more power


i have a 91 535i 5spd approaching 160,000 miles.
EAT chip, 3.64LSD are the extent of my power bolt ons

I was strongly considering ireland engineering's headers, which
are a copy of RD headers....but for only 300 bucks

then i wanted to get the eisenmann race muffler and run that
with straightpipes to my cat.

on the intake side the dinan intake manifold came into play,
but bill r said it wasn't a good idea...that i should just send
my manifold to extrude honing

as far as the intake itself goes, well there is a company
here in my state, modern performance inc that was in the february
issue of grassroots motor sports

they have a MAF conversion, with open air cone filter that
showed a 25hp gain on a m5 motor....at the wheels...and
the cool thing about that was u could tune it with your laptop
so if u saw a rich condition at full throttle at 5700rpm, u could
lean it out a bit...

now this setup cost clost to $1000 dollars, but i think that it
has great expandability - so when i'm ready to move up to a turbo
then i'll have a lot of use for it...

my last idea was to get rid of the stupid dual mass flywheel....
this too though, would be an expensive job....


so what do you think i should do? in what order? let me
know any ideas comments you might have...thanks guys!

-martin

[bahnstormer]

TCD's turbo kit prices out to around 7k for thier stage two, which
is at 11psi, approx 330 wheel horse.. the problem with that is
i'd need to upgrade, brakes, exhaust, driveshafts, clutches, engine
management etc etc, so it'd be closer to 10 grand for a PROPERLY
done job....

i WILL eventually do this, but i wanna see how far i can push the m30
NA....

[zygoteer]

... You could add NOS to the package, that completly kills the lag.

hmmmm ... and maybe the motor too ????

[crashnburn80]

TCD's turbo kit prices out to around 7k for thier stage two, which
is at 11psi, approx 330 wheel horse.. the problem with that is
i'd need to upgrade, brakes, exhaust, driveshafts, clutches, engine
management etc etc, so it'd be closer to 10 grand for a PROPERLY
done job....

i WILL eventually do this, but i wanna see how far i can push the m30
NA....

TCD recomends not switching to a MAF because they claim its much harder to tune to their turbo kits. So I wouldn't spend $1k on one just to take it off later.

[Craig]

Unless you're on the track you probably don't need to worry about an intercooler. Water injection is a good comprimise (I have it) and it's not expensive either.

I would highly recommend their turbo exhaust too, it makes installation sooo much easier that it's totally worth it for that reason alone, not to mention the better power.

You may need to upgrade stuff, you may not. You won't need to do anything to the engine electronics if you stay within mild boost levels. I made 282rwhp/291rwtq at 8psi non-intercooled and it's pretty damn fast. For comparison there was an E34 M5 there that day putting down 273rwhp/235rwtq.

[bahnstormer]

yeah i mean 330 wheel at 11psi intercooled is just an awesome amount for a 3500 lb car...i'd be faster than a e46 m3....

[Jeff N.]

Cheapest bang for the buck is a turbo. End of story.

I have tinkered with everything else with marginal results. Cam.. CAI... ported head ... maf ... lighter flywheel ... gearing, you name it. Next will be a 3.7 short block to go with metric mechanic head.

Problem becomes tuning the car as the ECU is a black box and you just can't tweek it to adjust to the mods.

Want power? Buy a chip. Then gear the car. If that isn't good enough, turbo it.

Cheers!

Jeff