McArthur Boys BMW

Working on building up a car? Tell us about it here!

Moderators: Jamie, Native

Tim --
FAST Elite
Drives: Subaru WRX STI
User avatar
Location:
Florida
Joined: June 2008
Posts: 576
First Name: Tim
Last Name: --
Autox Car: Subaru WRX STI
Location: Florida

McArthur Boys BMW

Postby Tim_M » Fri Oct 05, 2018 10:17 pm

The engine swap was a lesson in trial and fit...believe I stopped counting at 6 engine install/pulls...

Final wash before under the knife...Mother's Day:

Image

Disassembly begins:

Image

And out it comes:

Image

Ugh...but likely never been out of the car...no modifications either:

Image

One of the first installs:

Image

Image

One of the last:

Image

Major challenge (for us) was relocation of the ABS modulator valve deal...required moving from under the brake master to just in front of the driverside strut tower:

Image

Nice bracket is offered, but the brakelines are pretty much custom...that took 6+ hours to bend and bubble flare. Fortunately, we were able to borrow very high quality tools...tedious:

Image

Also heat issues impact the small compartment...especially with the OEM tar paper (21 years old) falls apart upon contact. So another 6 hours was consumed making templates and fitting heat shielding - works as advertised!:

Image

But not before doing a thorough cleaning...all this came out of the blower case...another reason for the natural scents:

Image

Had to enlist the owner of small hands and arms...cost me a candy bar!:

Image

And:

Image

Mission complete:

Image

Assistant even got to try his hand at welding...friend does it as a hobby and gave a hand...to install a European OEM coolant tank bracket and modify an are to mount the heater control valve:

Image

Just like factory:

Image

This frees up room for the air intake set up...also self bleeding so no issues with air pockets (so far!)

And a shot of what made this feasible...ultra high quality custom headers...received from a friend of BMW E36...truly a work of art...at cut rate price. SS 1 7/8 tube size...requires no modification to anything on the car. All other require either smaller brake booster or actually moving the brake booster outboard or using a sliver of poly to insulate and restrict the engine movement - vibration! These headers and associated mounts use the OEM BMW isolator...was a silky straight six, now silky V-8.

Image

We just crossed 1000 miles on the combination. Still love it and feels like it was built that way...or should have been!
Doug Adams
FAST Elite
Drives: Rotary or Vette
User avatar
Location:
Spring Hill
Joined: April 2011
Posts: 3665
First Name: Doug
Last Name: Adams
Autox Car: Rotary or Vette
Location: Spring Hill

McArthur Boys BMW

Postby twistedwankel » Sat Oct 06, 2018 8:48 pm

There is a happy tear running down an old man's face. Might be hope for humanity?
Tim --
FAST Elite
Drives: Subaru WRX STI
User avatar
Location:
Florida
Joined: June 2008
Posts: 576
First Name: Tim
Last Name: --
Autox Car: Subaru WRX STI
Location: Florida

McArthur Boys BMW

Postby Tim_M » Tue Oct 09, 2018 8:28 pm

It is a fun project...for both of us.

More cleaning:

Image

Only body work required...some battery overcharge killed the trunk floor...just surface rust. I love FL:

Image

So we broke out the POR to give it a coat...ok my assistant did the honors:

Image

End result:

Image

Also had to use a 'skinny' Flaming River steering shaft:

Image

Final install:

Image
Tim --
FAST Elite
Drives: Subaru WRX STI
User avatar
Location:
Florida
Joined: June 2008
Posts: 576
First Name: Tim
Last Name: --
Autox Car: Subaru WRX STI
Location: Florida

McArthur Boys BMW

Postby Tim_M » Wed Oct 10, 2018 6:49 pm

I should have said only rust on the 230,000 mile car was the trunk due to battery acid spill...we had some other 'body' work...repaint the hood, original front bumper, and mustache panel due to a large dent. Previous owner liked to hand paint portions...including the "M3" across the hood. Otherwise we wouldn't have touched the original paint car. Also interesting note for me at least, is all the body panels have the VIN from the car-easy to tell if anything had been replaced - this 7 owner car is original!

From this:

Image

To this:

Image

To this:

Image

To this:

Image

Added a couple of kidney vents (OEM BMW!):

Image

Little hands scratch the paint less than old-hamfisted mitts:

Image

Looks brand new!:

Image

Finally:

Image

Again a helpful neighbor made that all happen. Also note the car itself looks 100% better in the photos than in person...I still count 14 dents throughout the body. We were quoted $300 to have them all removed via paintless dent repair...giving that some thought.
Daniel Dejon
FAST Elite
Drives: 2006 Lancer Evolution
User avatar
Joined: November 2015
Posts: 702
First Name: Daniel
Last Name: Dejon
Autox Car: 2006 Lancer Evolution

McArthur Boys BMW

Postby CaptainSquirts » Wed Oct 10, 2018 7:44 pm

Looks beautiful!
Tim --
FAST Elite
Drives: Subaru WRX STI
User avatar
Location:
Florida
Joined: June 2008
Posts: 576
First Name: Tim
Last Name: --
Autox Car: Subaru WRX STI
Location: Florida

McArthur Boys BMW

Postby Tim_M » Thu Oct 11, 2018 5:37 pm

Daniel - it is no Evo, but we are enjoying the V8 soundtrack...

EFI...we elected to splurge and go with a Holley HP EFI...self correcting on the fueling. I use the same ECU on my Nova - high buy in cost ($1400), but one can tune on the fly upon each change to the engine rather than require dyno visits and a tuner. Admittedly, we are not pro tuners, but the cars run reasonably well. The stickshift transitions are the challenging areas. Cruise, WOT...not an issue.

Image

We 'gutted' the OEM computers (engine and auto trans)...made room for the aftermarket:

Image

Fits like a glove and yes that is a piece of wood...the extent of my fabrication skills. It does insulate and was fitted so the ECU is held nicely by the OEM points:

Image

Then came the wiring...first the HP ECU connections:

Image

Along with the separate fuel pump and fan relay 'module':

Image

All tuck in nicely to the OEM pocket:

Image

Just like OEM!:

Image

Of course my assistant became familiar with soldering...actually, he liked doing it. All connections were soldered hopefully minimizing future wiring issues:

Image

Image

Then came the integration of the aftermarket ECU into the chassis wiring. We round filed nearly the entire engine harness so had to repin the engine compartment cannon plugs as well as wire up the car charging system. Definitely learned more than we expected:

The beginning:

Image

Inwork:

Image

Nearly complete:

Image

Alternator sensing wire...recall Camaro GM alternator:

Image

Wired up:

Image

And the large charging cable to the engine compartment 'hot' terminal:

Image

13.9 volts at idle...just as an EFI likes it.
Les Davis
Experienced Autocrosser
Drives: Banana Beast
User avatar
Joined: January 2013
Posts: 489
First Name: Les
Last Name: Davis
Autox Car: Banana Beast

McArthur Boys BMW

Postby lddavis91 » Thu Oct 11, 2018 6:08 pm

Excellent work overall Tim & assistant. Replacing sauerkraut garbage with mercian muscle is always a good choice. However, yours and your assistant choice in footwear is not so good. :-D
'13 Corvette GS "Dark Knight", 0'92 Corvette 383 "Banana Beast" , '82 Solo Vee "Wheee Beast", '03 Expedition "Tow Beast 2.0", '16 SeaDoo GTX 155S "Sea Beast"
2014 CM Florida State Champion
Tim --
FAST Elite
Drives: Subaru WRX STI
User avatar
Location:
Florida
Joined: June 2008
Posts: 576
First Name: Tim
Last Name: --
Autox Car: Subaru WRX STI
Location: Florida

McArthur Boys BMW

Postby Tim_M » Fri Oct 12, 2018 8:40 pm

You'd never catch me in sandals prior to moving to FL 11 years ago...now it is the only thing you will find me in - convenience and cheap! :thumbwink:
Tim --
FAST Elite
Drives: Subaru WRX STI
User avatar
Location:
Florida
Joined: June 2008
Posts: 576
First Name: Tim
Last Name: --
Autox Car: Subaru WRX STI
Location: Florida

McArthur Boys BMW

Postby Tim_M » Fri Oct 12, 2018 9:29 pm

We started with an automatic...didn't see any 2 doors within our price range that hadn't been rodded out. This 7 owner automatic was unmolested...highly worn, but not 'improved' on by the previous owners. Keeps things simpler.

Converting to manual trans was quite easy...easier if you knew what you were doing. We bought a pedal set off BMW forum...included about half the parts...took some time to figure out what nuts/springs were needed - some trial and error orders (the extra cost of projects!). Ultimately one unbolts the auto 'pedal box' and bolts in the manual...popping the firewall plugs out.

What $90 gets you:

Image

European aluminum master (and the 4 attempts at the correct fittings):

Image

Assembled:

Image

Had to jumper the automatic shifter to allow starting 'in gear':

Image

Image

A beautiful thing!

Image

Yes!

Image

Even the chassis seemed to welcome the Chevy drivetrain....so close to the Tremec T56 Magnum shifter requirement:

Image
Doug Adams
FAST Elite
Drives: Rotary or Vette
User avatar
Location:
Spring Hill
Joined: April 2011
Posts: 3665
First Name: Doug
Last Name: Adams
Autox Car: Rotary or Vette
Location: Spring Hill

McArthur Boys BMW

Postby twistedwankel » Fri Oct 12, 2018 9:52 pm

Jr's College will be paid for if you keep on putting bullet proof V8's in people's slow ass cars with a pix update for the payer.

I'm going to go throw up now as that car is just plain sick and it's catching. Flu shot tomorrow for sure. Probably a 2nd pneumonia update too.

Doug
Tim --
FAST Elite
Drives: Subaru WRX STI
User avatar
Location:
Florida
Joined: June 2008
Posts: 576
First Name: Tim
Last Name: --
Autox Car: Subaru WRX STI
Location: Florida

McArthur Boys BMW

Postby Tim_M » Sun Oct 14, 2018 5:35 pm

Doug: assure you no money will be made on this 21 year old car. A profit would be grand, but I've been a dismal failure in my 30+ years of investment with automobiles... :bangwall: I do believe the assistant will gain some life lessons...not giving up, working with 'unique' individuals in the car world, hard work = results at the drags, etc.
Doug Adams
FAST Elite
Drives: Rotary or Vette
User avatar
Location:
Spring Hill
Joined: April 2011
Posts: 3665
First Name: Doug
Last Name: Adams
Autox Car: Rotary or Vette
Location: Spring Hill

McArthur Boys BMW

Postby twistedwankel » Sun Oct 14, 2018 8:58 pm

I was quoted $14k+ to provide/install a new LS3 and GM 6 speed trans into a clean/blown engine RX8 by a well known professional 4 years ago. Then he changed his mind for some unknown reason? Didn't die or quit - as I checked. Just ceased all communication with me. Computer tango? Probably, as RX8 has ECU assigned to individual car by factory and has a killer security system that locks it up and nothing works. Back then I would have gladly paid that in cash. Bought my C5 instead since it came with both factory installed:) But no usable backseat.

I definately hear you about working on our "own" race cars being a losing proposition. We're not buying them to flip (I mean sell.). This would have made a great Velocity Build show!! As would your STi engine story. As certainly would your old C4!!
Les Davis
Experienced Autocrosser
Drives: Banana Beast
User avatar
Joined: January 2013
Posts: 489
First Name: Les
Last Name: Davis
Autox Car: Banana Beast

McArthur Boys BMW

Postby lddavis91 » Mon Oct 15, 2018 12:43 pm

Tim_M wrote:You'd never catch me in sandals prior to moving to FL 11 years ago...now it is the only thing you will find me in - convenience and cheap! :thumbwink:
You call those sandals do you? I call them an abomination. ;-)
'13 Corvette GS "Dark Knight", 0'92 Corvette 383 "Banana Beast" , '82 Solo Vee "Wheee Beast", '03 Expedition "Tow Beast 2.0", '16 SeaDoo GTX 155S "Sea Beast"
2014 CM Florida State Champion
---------- ----------
Moderator
Drives: Sedately
User avatar
Location:
Just within reach of storm surge
Joined: December 2006
Posts: 2088
First Name: ----------
Last Name: ----------
Autox Car: Sedately
Location: Just within reach of storm surge

McArthur Boys BMW

Postby Jamie » Mon Oct 15, 2018 1:59 pm

lddavis91 wrote:
Tim_M wrote:You'd never catch me in sandals prior to moving to FL 11 years ago...now it is the only thing you will find me in - convenience and cheap! :thumbwink:
You call those sandals do you? I call them an abomination. ;-)
Jeez...next they'll be painting their toenails.... :dunno:
Jamie
'01 Miata, '92 Prelude Si
Speed Demon Racing

Return to “Projects”

Who is online

Users browsing this forum: No registered users and 3 guests