m42 engine build up from grassroots motorsports

[fastbmw]

Got the latest issue of grassroots motorsports magazine. They have an excellent e30 318is project car. They paid $700 bucks for it and gonna rebuild it and supercharge it too!

Here are some quick details from the article:

Baseline hp & torque:
119.5 hp @5600rpm 118.8 lb/ft @4500 (Wheel hp & torque)

0 to 60: 9.52 seconds (this was done in florida when it was hot and muggy)

After replacing stock plug wires:
125.7 hp @ 5800rpm 121.8 lb/ft @ 4650 rpm

After replacing intake filter with K&N cone:
Negative 5 horsepower.

Stock intake with brand new OEM filter:
126.7 hp & 123.9 lb/ft (stock is most of the time best!)

Stock intake with K&N panel filter:
+0.6 hp & + 0.5 lb/ft torque

Turner/conforti chip
+3 hp

Addition of supersprint exhaust
131 hp @ 5900rpm.

After all the mods: 0 to 60 dropped to 8.45 sec.

[Mark D.]

Got the latest issue of grassroots motorsports magazine. They have an excellent e30 318is project car. They paid $700 bucks for it and gonna rebuild it and supercharge it too!

Here are some quick details from the article:

Baseline hp & torque:
119.5 hp @5600rpm 118.8 lb/ft @4500 (Wheel hp & torque)

0 to 60: 9.52 seconds (this was done in florida when it was hot and muggy)

After replacing stock plug wires:
125.7 hp @ 5800rpm 121.8 lb/ft @ 4650 rpm

After replacing intake filter with K&N cone:
Negative 5 horsepower.

Stock intake with brand new OEM filter:
126.7 hp & 123.9 lb/ft (stock is most of the time best!)

Stock intake with K&N panel filter:
+0.6 hp & + 0.5 lb/ft torque

Turner/conforti chip
+3 hp

Addition of supersprint exhaust
131 hp @ 5900rpm.

After all the mods: 0 to 60 dropped to 8.45 sec.
Interesting, I always had a panel K & N and thought they helped even if its marginal. The TMS chip thing pisses me off. I just dropped $350 Cdn. on one, this will be my second one in 6 years. Off to the dyno soon with stock chip installed, then TMS chip. They advertise +14 hp, I highly doubt it. I wonder what kind of plug wires they used, do they say in the article?

[fastbmw]

Magnecor but they stressed usually plug wires have no performance gain unless your previous wires were old, broken or had a problem with them.

[Mike 91 318ic]

That's exactly what I've done to my car minus the spark plug wires. I've done 0 to 60 times with mine and I come up with 8.5 - 9.0. It's odd the supersprint only added 1 hp. I swear I could feel a difference when I added mine, about the same as with the JC chip.

M

Got the latest issue of grassroots motorsports magazine. They have an excellent e30 318is project car. They paid $700 bucks for it and gonna rebuild it and supercharge it too!

Here are some quick details from the article:

Baseline hp & torque:
119.5 hp @5600rpm 118.8 lb/ft @4500 (Wheel hp & torque)

0 to 60: 9.52 seconds (this was done in florida when it was hot and muggy)

After replacing stock plug wires:
125.7 hp @ 5800rpm 121.8 lb/ft @ 4650 rpm

After replacing intake filter with K&N cone:
Negative 5 horsepower.

Stock intake with brand new OEM filter:
126.7 hp & 123.9 lb/ft (stock is most of the time best!)

Stock intake with K&N panel filter:
+0.6 hp & + 0.5 lb/ft torque

Turner/conforti chip
+3 hp

Addition of supersprint exhaust
131 hp @ 5900rpm.

After all the mods: 0 to 60 dropped to 8.45 sec.

[kowalski]

but arn't your running the really heavy kopi's? the diameter of the wheel is bigger, and its heavier so i think that might be your difference in 0-60 right htere depending on how heavy those htings actualy are... i just hear they're beasts but i coudl be wrong.

[Mike 91 318ic]

They're not that heavy, (21lbs) they're lighter than E36/E46 M3 wheels. And the rim/tire diameter is the same as oem. They might slow me down a 1/10th or so.

but arn't your running the really heavy kopi's? the diameter of the wheel is bigger, and its heavier so i think that might be your difference in 0-60 right htere depending on how heavy those htings actualy are... i just hear they're beasts but i coudl be wrong.