3500 mmotronic?3.0 with 284+3 weber?

[giannicsl]

HI GUYS,.. I would increase the power and performance of my e9.

I NEED YOUR ADVICE!

ASAP ....

ENGINE CHANGE WITH ORIGINAL CSI Camshaft FROM 284 AND 3 BODY DOUBLE WEBER 48 ....

SECOND CHANCE ...

PUT AN ENGINE UNDER MY E9 3500 Motronic Remodeling UNIT AND FAR ...

SECOND YOU WITH WHICH OF THESE 2 MY HYPOTHESIS E9 would have greater power but also more driving pleasure?

I DO NOT HAVE TO USE THE TRACK, BUT I WANT THE BEST FOR MY E9 ...


How many horses could INCREASE CHANGING Motronic?

CAN I GET A 235 HP MOTOR AND ORIGINAL UNIT remapped Motronic?

THANKS FOR YOUR ADVICE ...

 

[dp]

weber 48's are HUGE and even with 3.5 liters you need a very high lift cam to pull through them AND there's very little drive-ability of the engine at lower rpm's. If you use them on a 3-liter (regardless of cam) will keep the cylinder walls washed with gasoline, very clean but very high-wear, also the fuel getting into the crankcase (inevitable over not-so-much-time) can lead to premature/catastrophic bearing failure...possibly long before the cylinder walls/rings wear out (<5000 miles)

If I had a CSi that I was working on presently, I'd get it into stock, proper tune with a fresh, proper rebuild of the engine. They can be very smooth and very rewarding drivers. Period.

 

[x_atlas0]

In terms of overall driveability, the Motronic 1.3 unit wins easily. It is pretty much like driving an E34 535 at that point, from a drivetrain perspective.

In order to get 235 rwhp, even from the M30B35, you are going to have to do some additional work. Miller makes an excellent MAF and custom-tuneable chip which will get you to ~200 rwhp. Good headers will get you to ~210-215 rwhp. The 284 cam will get you more power up top, but give less torque down in the usual driving revs. The CSi's 270 cam is actually a nice balance between the conservative 260 and the hot 284.

Other than engine mods, have you considered the rest of the drivetrain, like swapping in a 5 speed Getrag 265, or a limited-slip differential?