magneti marreli performance?

chopperhead2 · #1 06-26-2008, 02:32 AM

What are you guys doing for pre 2002 M&amp\\;M performance? I don`t knwo too much about them other than they are pretty finiky. The&nbsp\\;Delphi is what I am use to but I`ve been getting some questions about them from guys with the older style. I know a few places make a new throttle body but can anything be done to the original unit? I have a guy who wants me to build him a mild 103 with ported heads and geardrive cams but I`m not sure how the bike will respond.

Doc 1 · #2 06-26-2008, 07:49 AM

http://www.bcheads.com/&nbsp\\;Gerolamy bores out the stock TB 20%....it's a lot better than the stock unit but the MM is still a cork in the system.

Ryder Rick · #3 06-27-2008, 01:48 PM

Is the S&S computer still available for this system?
I have seen them work very well (on big motors even).

gunnert · #4 06-27-2008, 02:34 PM

I stroked my 99 Road King to 116" about 6 years ago. I run the S&amp\\;S dual bore throttle body. Yes, S&amp\\;S still makes the VFI computer for this setup. I recently added closed loop O2 sensors to the VFI! This is the hot setup! No more tuning issues.
I strongly recommend the S&amp\\;S VFI for a MM system but ONLY with closed loop. To run the closed loop you have to relocate the baro sensor from under the right side cover to a vacuum port at the rear cylinder. Makes the MM system react as a Delphi system.
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chopperhead2 · #5 06-27-2008, 03:13 PM

Thanks guys. I`ll look into the S&amp\\;S set up.

shooter64 · #6 06-28-2008, 06:41 PM

zippers makes a conversion kit, we just installed one with auto tune, on a HQ build and it woke it up