Hot Wire MAF conversion for L-Jet
11-12-2008, 11:06 PM
#17
Administrator - "Tyson"
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So that's why Jack has been so quiet lately 
Good job guys!!!
Good job guys!!!
11-12-2008, 11:50 PM
#18
This is cool. Thanks for sharing the details of the project. Not sure if anyone has mentioned this but if you want some good solid advice you would do well to contact Kevin at www.injectionlabs.com. He used to have his business just down the road from where I live. The man definately knows his stuff. He was involved with maf development with Bosch and his business does rebuilding and repair work of FI componets. Last time I visited him in the shop he was finishing up a L-Jet to MAF conversion on an old 931 turbo. I look forward to seeing how this project works out.
07-25-2009, 03:37 PM
#20
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With a little luck......(that means work leaving me alone for a few days)..I think I will be able to tune the fuel to redline tomorrow and Friday. Installation was simple and I am taking pics and doing the writeup for it as I go, which slows things down a little. The hard part was getting it to start after the installation...but Hey!!! At least I made a lot of new friends at Bosche Tech support!! The writeup will take the guesswork out of the initial fuel map so others won't have to re-invent the wheel after me. This setup, Like DR says, will use the euro s airbox along with the air temp sensor in it and is very easy to fit. The dyno tuning should be very interesting, since the Manufacturer claims something like an additional 18-20 HP just from this changeover. Since my car last dynoed at 252 RWHP I would be ecstatic to see 20 more HP. DR, I will find time and give you a call early next week.
20 horsepower is cooking!! If I had known about those gains to be had, I would have been all over this a long time ago. It also is supposed to increase throttle response and driveability. From what I can see from the initial tuning, and remember, I can only blip it to about 3.5K, IT DOES seem to be more responsive, but of course, I won't know how much until after dyno tuning when I can take it down the road! Phase 2 is the data recorder so I can do real time monitoring and of course recording of many different parameters. That in itself is going to be a job...............
OK, spent a lot of time programming fuel maps today, so here is an update. Due to the wideband O2 readings varying more than I would like to see, I am going to phase 2 before completing phase 1. I am going to install my Dl-32 Data-Logger so I am not chasing ghosts. The DL-32 can measure RPM, Ignition timing, MAP, boost/vacuum, speed, injector duty cycle, CHT, and EGT among other things. This should help me determine if I actually have a problem or if my O2 gauge is simply not as accurate as I would like to see it. The DL-32 records on an SD card, or real-time on a laptop. This will let me analyze exactly what is happening at all RPM's.
Now the bad part----Since I need to order a few things, such as optical reference sensors, and mount and wire the DL-32, it is probably not going to be complete for a while, so everyone is going to need to patient a while longer. I want this to be right, and I am not going to rush things. Again, I will start a new thread when I get this all debugged. Hang in there everyone!
Now the bad part----Since I need to order a few things, such as optical reference sensors, and mount and wire the DL-32, it is probably not going to be complete for a while, so everyone is going to need to patient a while longer. I want this to be right, and I am not going to rush things. Again, I will start a new thread when I get this all debugged. Hang in there everyone!
