Author Topic: Buildup: My quest for NA 280 hp (Read 156745 times)

Boyracer · « **Reply #90 on:** February 01, 2010, 06:31:52 AM »

Just a few random photos...

60 hp / each!

Fully assembled flywheel and clutch

Crank and vibration damper waiting for balancing

Next con rods should have their small end bushings changed and perhaps a slight shave from the sides, not the small end is bit too tight fit to piston, there is simply no allowance sideways movement. Stock piston / conrod have about 3 mm space for small end to move sideways.

Also, con rod big ends might have to be machined to have oil exits similar to stock rods. I will find out and post here later.

iron-H · « **Reply #91 on:** May 04, 2010, 08:10:13 AM »

When are you ready for the Dyno? i�m sure we all cant wait of it... ;-)

If you still have some Problems, what would be with a Lubricant cooling system? You do cool the oil with your Water radiator

dsm2002 · « **Reply #92 on:** May 04, 2010, 11:16:26 PM »

Jan,

Off hand, do you know where a copy of homologation paper 5500 (318i) or 5526 (318is-4) can be found?

David

Boyracer · « **Reply #93 on:** May 06, 2010, 09:21:58 AM »

Sorry, no idea where you can find the homologation papers

Plan is to have normal oil-to-air cooler later on.

Currently car is out of road due leaking gearbox rear end gasket and leaking head gasket... I think regular overheatings in track have finally done the trick and warped the cylinder head.

New block has been bored and honed, waiting machinist to complete work on con rods too. Then I guess I will have to drop the original engine and gearbox to fix the warped head and put it to new high comp block, gerabox will be fixed and hydraulic release bearing and lightweight clutch/flywheel installed:

Boyracer · « **Reply #94 on:** May 06, 2010, 09:34:32 AM »

Oh yeah, forgot this one:

Way thicker than stock radiator, also the size is same as in euro E36 M3 ie much larger than then one in car now.

Boyracer · « **Reply #95 on:** August 02, 2010, 06:28:04 AM »

Not much progress I'm afraid... I REALLY need a garage

Megasquirt installed behind and under glovebox:

Some help for monitoring state of engine. On the right is LC-1 wb lambda AFR meter:

Engine block has been bored and I hope con rods have been modified too, just have to pick them up from machinist.

Diff is away from car and it will be upgraded from 3.45 -> 4.1. Gearbox is away from car so I can build hydraulic release bearing adapter and install featherweight flywheel and clutch :cool:

dude8383 · « **Reply #96 on:** August 18, 2010, 11:00:37 AM »

This is one seriously bad ass build!

M5wanaB · « **Reply #97 on:** August 19, 2010, 01:25:27 PM »

let the assembly begin.

Boyracer · « **Reply #98 on:** August 19, 2010, 02:06:32 PM »

Release bearing legs have been shortened by 12 mm to allow it to fit inside bellhousing. I made adapter plate from 10 mm thick aluminium to secure release bearing in place.

Valve cover has been machined so it can house the coils and I made mounting adapter myself from 6 mm aluminium so that is almost ready too.

Got a K&N cone filter. I originally intended to use OEM E36 M3 filter housing but it fouls with the planned radiator exhaust air funnel that will vent through hood so I will make custom filter box from aluminium.

Engine block and rods are ready, will pick them up later this month and rebuild will finally start!

I think I will have workshop on my attic for the winter! Obviously not a replacement for a garage but allows me to build the engine and prepare some small things during winter

enildeR · « **Reply #99 on:** August 26, 2010, 05:16:33 PM »

where did you source the radiator from?

Boyracer · « **Reply #100 on:** August 27, 2010, 05:05:20 AM »

Quote from: enildeR;95930

where did you source the radiator from?

US eBay, seller was godspeed or something like that. Fit is ok, altough I had to modify lower supports a bit. No idea if it leaks

Got engine block from machinist and took flywheel and cranck for balancing. Release bearing and valve cover mod for CoP area ready.

Also got some parts for external case for sequential ignition/injection extension board. MIL-DTL-5015 baby!

enildeR · « **Reply #101 on:** August 28, 2010, 03:51:53 AM »

can you post some pics of the hydraulic throwout bearing mounted? Did you have to drill holes into the gearbox case? If so, did you do it yourself or have a shop do it?

Boyracer · « **Reply #102 on:** September 06, 2010, 01:50:11 AM »

This weekend's progress. Unfortunately not enought time to fit them to car

Next step is to finalize Mega and injection & ignition driver box and cable trees.

Boyracer · « **Reply #103 on:** September 09, 2010, 01:56:23 AM »

Now things are picking up some pace

Making ignition cable tree:

Injection cable tree. I will make wiring suitable for staged injection (second bank located in the beginning of intake trumpets):

A rare sighting of big block M42 (with 86 mm bore

:

Next I will finish megasquirt to work with sequential injection and tach/DISA control board. I have been looking what parts I am missing on bottom end and when I get pistons and rods from machinist I can start the build

romkasponka · « **Reply #104 on:** September 09, 2010, 06:33:26 AM »

What about airbox?

Will you run staged injection with dual table function?

Fuel E85?