OVERKILL
$100 Site Donor 2021
Great job! I also notice the swap away from COP there at some point along with the tire change. I assume this was due to the direction you went with engine management?
Pic Heavy: My project build, BMW V8 Tbucket
- Thread starter Mykk
- Start date
Absolutely stunning. Love it.
I did to get away from the BMW "dumb" coils, I'm currently having some ignition issues and have a set of GM truck self ignitiing "Smart" coils on order to convert back to COP, although it'll still be waste spark
You Sir, are an artist!
wemay
Site Donor 2023
Pretty spectacular!
so cool! sounds great!
That's a cool project. Nice job.
That engine sounds outstanding ! the rest of the rod beautiful ......
- Joined
- Dec 30, 2006
- Messages
- 29,558
For the techie nerdy specs: The engine is considered a M60B44 hybrid. It's a non-vanos M62B44 4.4L short block with earlier M60B40 4.0L heads, cams and double chain timing set up. The intake and exhaust cams have been swapped to have a 241 intake/249 exhaust duration, with a 110 ICL and 112LSA. By my CC'ing and measuring I've come up with roughly 9.6:1 static compression and I'm capping the boost around 10-12psi. The nitrous was simply to aid in IAT cooling, there is a nitrous spray bar on the front supercharger heat exchanger and the two stages at the fogger are 60hp and 120hp. The fuel injection controller adds the 'wet' part by increasing injector pulsewidth while nitrous is active.
The 6 speed manual transmission is from the original donor car, the 90's BMW 5 series. The rear end is a 70's Jaguar IRS
I'm aiming for 450hp without the nitrous and a curb weight of 1800lbs-ish.
The engine management is an open source DIY Arduino based standalone fuel injection controller called Speeduino, it runs the V8 in paired cylinder injection and waste spark.
Video of the first ever fire up (coincidentally exactly 1 year ago today from making this post):
Recent vid, with the pipes & mufflers on:
This project has been roughly three years in the works. Although it doesn't move under it's own power yet, it is scheduled for it's first registered drag race at the end of Oct '21 for the Kingman Az Street Drags. You'll notice the rear tires change part way through, that was in hopes of getting into the 'Hot Rod' class for the Street Drags rather then the 'Pro-street' class, which this car is most definitely not.
The goal is to get the vehicle on the road ASAP to begin the long tedious process of tuning, shake down and addressing every gremlin and glitch along the way.
Thanks for checking out my project. Let me know whatcha think. -Mykk
That's awesome!!
OVERKILL
$100 Site Donor 2021
I towed my project 150 miles up to Kingman Az for the Route 66 Street Drags. The debut of the car and the first official outting. Un-Tuned, Un-Tested, no shake down runs. I didn't push my comfort level behind the wheel, and I didn't push the car. Making for some embarrassingly slow 1/8th drag times & ET. But the weekend was a total success and I got to drive my project down a legal drag strip on Route 66.
Yesterday was a big day for me & my project. We had the Arizona MVD (DMV) inspection to get assigned a VIN #, we passed inspection. Made all the easier by having the Speedway Motors Manufacturer Specified of Origin (MSO) Certificates for the frame and the body. The MVD treated the MSO's as 'bill of sales'. Not only was the inspection easier (Level II vs Level III) they also legally registered the vehicle as a 1923 model year because the MSO's described the frame and body as '23 T'.
So now my mail order Tbucket kit, with a 90's Euro drivetrain and fuel injection is legally a 1923 Spec Con/Rcon with Historic Vehicle tags. Perhaps history in the making? lol
So now my mail order Tbucket kit, with a 90's Euro drivetrain and fuel injection is legally a 1923 Spec Con/Rcon with Historic Vehicle tags. Perhaps history in the making? lol
Gotta love AZ! That's awesome!
OVERKILL
$100 Site Donor 2021
It's getting better every day, I've been letting the auto tuning make changes to the VE based on wideband O2 feedback then I manually blend. I'm a little lean on the warm up enrichment but it fires up and idles at any temp, I'm going to add a couple flyback diodes on the IAC wiring to see if it can clean up at a lower idle rpms. The supercharger isn't making much boost It only makes about 4psi when it should be in the 12-15psi range. Need to diagnose the cause, then tune the VE in that KPA range.
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