Nope. Haltech can't even come close to what Motronic 2.7 can do. M2.7 is completely programmable. Coil charge time. Ignition advance. 255x255 fuel air maps (well, limited by chip storage). Full OEM error detection and electronic monitoring of all electronic components. Plus, M2.7 has a watchdog. The system physically *can't* remain in an error condition for more than a tenth of a second thanks to the M2.7 watchdog. What's Haltech going to do if it encounters a programming error?! You want your engine computer to be "hung" while you are revving to 7500 RPMs?! It needs a watchdog timer. What's Haltech going to do if a cat overheats? I'll tell you what...Haltech is going to let your car burn to the ground. Not Motronic 2.7. M2.7 is going to shut down a bank of cylinders until the offending catalytic converter has cooled off. You're still driving, but safely at half power.
It is called "waste spark", when one cylinder is firing on the comression stroke there is always another that is halfway through its 4 cycles, and will fire at the top of the exhaust stroke. 1-5-3-7-4-8-2-6 when 1 is firing, 4 is on the exhaust stroke, etc. And now back out to the garage to finish mocking up the new cats, headers recieved last night and installed this morning. JM
Is there a way to upload a word .doc file so it just appears when you see it on fchat without having to click on it and have your computer open MS word?
Can't think of one off the top of my head but you can paste up screenshots. Image Unavailable, Please Login Image Unavailable, Please Login
Finally, the air management system is on the way. Two little boxes from Ida Automotive in Morgantown, NJ. These will allow on-the-fly changes to the a/f ratio, but hopefully not necessary after the dyno time to tune the motor! They're supposed to be here Tuesday! I'm stoked! Finally, the stacks go on and those big, heavy, and complicated air boxes come off! I've got about 5 days to mount the courage to cut a hole in my bonnet! (To match the hole in my head)
Interesting. Is that related to Unichip, also from South Africa? I have seen people take the multiple pdf's of the wiring diagrams, and bring them to Kinkos to make one giant poster. That might be cool and useful for you. There are guys who even color them in and sell them on ebay, but I have never seen one for a Ferrari. Jay
Bruuuce!!! No need to cut a hole in the bonnet!!! One can just make a replacement piece for the front part of the lid!! Say maybe out of a nice clear material (lexan ), to show off the entire motor while you are at it !!!!
If you take a close look at the construction of the bonnet, you'll see it's not as easy as that. The front piece is formed with the frame, so would require quite a bit of cutting to remove. If, God forbid, I ever need to return it to stock, I can simply put a piece of Ferrari glass (Lexan) in the hole and it'll show off the stock plenums nicely.
Bruce that is great news....can't wait to see it installed and running....have you found a suitable rear wing for the in-flight testing....are you staying with the stock fuel injectors?
I'll probably use the APR Performance GTC300 wing. 67" wide, real good airflow characteristics. Something like 240lbs downforce at 120, <19lbs drag. I've got some 24lb. Ford 5.0 injectors in there now. Stock is around 16lbs, 355s 19 or so. Hoping I'll need to go to some 32s!-Group77, IIRC, says I'll need them to make 400hp or so, though I probably won't be making that much yet. Looks like I'm gonna have to do VCT for that . Is my sanity in question???? What are the voices in my head saying????
Just reviewed this thread after a couple of weeks -- and I thought I was over-the-top. Just one data point - if those are the air cleaner elements with the white fiber filter element that you plan to use on the velocity stacks, I knew of an engine dyno's Bizzarini V-8 where the difference between using those filters and open 45mm velocity stacks was close to 80 - 100 hp. They may not flow as well as hoped - be sure to dyno with them on and off. Good luck - this is quite fascinating!! I'm really looking forward to a DynoJet rwhp if possible. Back to my 1940s technology and simple basic modifications...
What is this I hear about you going MAF-less???? Share the wealth pluzit !!! BTW the voices in your head are right !!!
Not really much here-it's just that what used to be a simple carb change got complicated in the electronic age-yep, computers are gonna make our lives so much simpler.....not! I remember Bizzarini from the 60s. Italian body with Chevy motor. Pretty. Didn't he also try to do a F1 car? Filters are little screens with foam just to keep out rocks and cigarette butts. I'll dyno without for sure. 40s technology.....a flathead Ferrari? Oooooh, I have an idea. Wouldn't it be cool to do a 3xx with a flattie? Can you imagine the retching at the concours when they opened the hood? Iwannadoit.
