Bullet Ride's 2.8L Stroker Project (Updated: Dyno Plot pg. 6)

[Bullet Ride]

Gee that pulls nicely from 2500 rpm. Is it a 3.73 diff?

Also, what was with the CEL at 5800?

Yeah 3.73. The CEL is because I was going around a bend and my washer fluid is low so it tripped the low washer fluid light on the check panel. I also don't have any parking brake components installed currently which is why the parking brake light flickers, that switch is pretty sensitive.

[BMW_325i]

Gee that pulls nicely from 2500 rpm. Is it a 3.73 diff?

Also, what was with the CEL at 5800?

[Bullet Ride]

Shot a quick 4th gear pull before my new exhaust.
Car is being dropped off tonight at the exhaust shop.

[Bullet Ride]

That is a nice build up, great job!

What kind of numbers do you think the motor is putting out now?

Thanks.
I'm hoping for somewhere in the range of 170-180whp and tq.
I'm going to a car show next weekend that is supposed to have a mobile dyno on site. I might try to get a couple pulls in to see where things are at.

That is a nice build up, great job!

What kind of numbers do you think the motor is putting out now?

[Bullet Ride]

Unfortunately I don't have any good video footage of my car yet, but at the last auto-x some random guy recorded my car leaving the start box. At this point I still hadn't dialled in my idle settings so I had some idle surging going on. Above 3000rpm the Bavauto headers start to sing.



There was one other guy who said he got a clip of my car on course which I'm hoping will have a little bit of sideways action lol, I'm just waiting for him to get it off his camera and upload it.

I'm getting my custom 2.5" exhaust done next week with vibrant cat, resonator, and muffler. I'll post up a couple clips when it's done.

[PeteD]

I'm pumped for the video. Congrats on finishing this project.

[Eurotrash727]

You can

hmm wonder how much of a change going from a 2.7 to a 2.8 would be...with my 2.7 & euro pistons ill be 10:1 CR. Think i seen on another forum you said you around 9.5:1

[Bullet Ride]

Hmm very interesting build...wonder if i could use a 2.8 crank with my euro Eta pistons.

You can

[Eurotrash727]

Hmm very interesting build...wonder if i could use a 2.8 crank with my euro Eta pistons.

[Bullet Ride]

The M20 stroker breaths! I did a 50km (~30 mile) hard break in and changed the oil. Although the cam seal seems to be leaking I'm pretty pumped that other than that the motor seems to be running well. I'll diagnose the leak further in the next couple days. I was going to drive it some more after the oil change but it started to rain and I haven't put my hood back on yet.

The tune is still rough but it's good enough to drive the car and it will progressively get better the more I drive. Initial impressions... more low end torque and although I haven't spooled it out yet it feels strong on the top end.

Videos will be coming soon.

[Bullet Ride]

Update: Many hours later....



:up:

A couple other pictures...

A shot of the motor when it was ready to go in...



A shot of when it first landed in its new home...



Where I ended up installing the sender for the oil pressure gauge...



And now a Macgyver tool story... I remember reading in the Bentley manual that I'd need a 30mm socket to remove the nut on the drive flange so that I could replace the seal. So I went out and bought one at lunch on Friday and machined it down a bit because I knew it needed to be thin walled. What I didn't realize was that it needed to be a deep socket. When I came home I went to see if it'd fit and it wasn't even close to being long enough. However I would be SOL this weekend if I couldn't make it work. I noticed that the part of the shaft that goes into the pilot bearing almost fit through the opening for the 1/2" drive on the socket so I used my rotary tool to grind the opening to allow the shaft to fit through. Then I ripped a couple flats on the bench grinder so I could get some grip with a big pipe wrench....



A trick to hold the output flange is a piece of flat bar between the transmission mounts....



All that's left is to put the exhaust back on, wire the oil pressure gauge, modify the wiring for the O2 (since it's now located in the mid-section of the exhaust), add fluids, and double check that everything is good and tight. I'm hoping to fire it up tomorrow night!

I also have to make a heat shield for the air filter, but that's not an immediate issue.

[Bullet Ride]

Update:

I asked this guy for an update and his response was "Update? What Update?...."



Stay tuned.

[bmoores]

sub'd great work so far!

[Bullet Ride]

Quick update:

Over the weekend I got my car converted over to the DIYPNP kit and did a little bit of tuning to get my fuel table half decent. Before I pull the motor I'll figure out what idle settings I'll need to get the car to idle at 2000rpm for the cam break in, that way when I go to start the new motor for the first time I won't have to sit there and hold the gas when I'll want to be looking at every inch of the motor for any leaks or other issues.

Last night I finally got around to fitting the crank scraper...



It took a decent amount of grinding to get the scraper to clear the counter weights.

I also started making this yesterday at work...



It's going to be an adapter for an oil pressure gauge sender that keeps the stock dummy light, I just need to drill and tap into the side for the fitting, and machine some flats for a wrench on the end.

I'm planning to start the engine swap this weekend.