You can change the style the forum displays by selecting your preferred style at the bottom left of the site.
We have made an enhancement so that old threads should now link from search results to the correct thread. This is not yet in place for single post links
I was digging around on here some more and ran across the links to the efiexpress site. http://www.efiexpress.com/catalog/pr...&products_id=1
Has anyone dealt with them? Opinions on using this setup in my AAN/944 swap.
currently: 1987 944 NA 5spd, 250 lb hyper coils, 27 mm t bars, Koni, 968 m030 bars, full delrin, Audi I5 20VT, VEMS, Tilton, EFI Express, Seimens, Race Technologies
see the AAN/944 swap at Nina's 20VT
It says pnp. Does it use all of the stock sensors? Can it eliminate the maf sensor? Does it still control non ignition functions like the after run coolant pump? Does it use the MFTS? I've been looking on the wiki (not very well designed) and the forums for answers, but haven't invested alot of time yet. Last year I was looking at putting the MS system on the 944's stock motor, but stopped when I was seeing the issues with using the OEM timing sensors. I didn't want to switch to a crank mounted tooth wheel. It looks like VEMS uses the OEM timing sensors. So I guess basically if I installed it, what are the loose ends that will have to be tied up? By the way, thanks for replying!
currently: 1987 944 NA 5spd, 250 lb hyper coils, 27 mm t bars, Koni, 968 m030 bars, full delrin, Audi I5 20VT, VEMS, Tilton, EFI Express, Seimens, Race Technologies
see the AAN/944 swap at Nina's 20VT
the MAF is not used. You can remove it completely. Most VEMS users mount an air filter directly to the turbo, but this is not a requirement. you can still leave the stock MAF in place if you want to.
Does it still control non ignition functions like the after run coolant pump?
as I mentioned in the other thread, the afterrun coolant pump is a discrete circuit with no interaction to the ecu (same deal with the cruise control system). Works on VEMS.
Does it use the MFTS?
No, and neither does motronic. The MTFS is actually used by the HVAC system. The coolant sensor used by the ECU is located at the back of the cylinder head.
I've been looking on the wiki (not very well designed)
no argument here..
and the forums for answers, but haven't invested alot of time yet. Last year I was looking at putting the MS system on the 944's stock motor, but stopped when I was seeing the issues with using the OEM timing sensors. I didn't want to switch to a crank mounted tooth wheel. It looks like VEMS uses the OEM timing sensors.
correct.
So I guess basically if I installed it, what are the loose ends that will have to be tied up?
click here for comprehensive installation instructions:
Do you have a document that details the vems operation in this application? Does it have usb connectivity? Will there be any hardware changes in the near future?
currently: 1987 944 NA 5spd, 250 lb hyper coils, 27 mm t bars, Koni, 968 m030 bars, full delrin, Audi I5 20VT, VEMS, Tilton, EFI Express, Seimens, Race Technologies
see the AAN/944 swap at Nina's 20VT
Nevermind on the usb part. I found it in the instructions.
currently: 1987 944 NA 5spd, 250 lb hyper coils, 27 mm t bars, Koni, 968 m030 bars, full delrin, Audi I5 20VT, VEMS, Tilton, EFI Express, Seimens, Race Technologies
see the AAN/944 swap at Nina's 20VT
Do you have a document that details the vems operation in this application? Does it have usb connectivity? Will there be any hardware changes in the near future?
hardware no, software / firmware YES. the new firmware has some pretty exciting stuff in it, like the ability to taper boost if EGT gets too high.
Marc Swanson
Proprietor, EFI Express
95.5 //S6 Avant
90' Coupe Quattro V8 4.2L twin turbo
93' //S4
83' UrQ
97' F250 7.3 diesel
Braum are you using VEMS? How do you like the turbo you have installed? What rpm does it hit full boost at? Thanks
currently: 1987 944 NA 5spd, 250 lb hyper coils, 27 mm t bars, Koni, 968 m030 bars, full delrin, Audi I5 20VT, VEMS, Tilton, EFI Express, Seimens, Race Technologies
see the AAN/944 swap at Nina's 20VT
We process personal data about users of our site, through the use of cookies and other technologies, to deliver our services, personalize advertising, and to analyze site activity. We may share certain information about our users with our advertising and analytics partners. For additional details, refer to our Privacy Policy.
By clicking "I AGREE" below, you agree to our Privacy Policy and our personal data processing and cookie practices as described therein. You also acknowledge that this forum may be hosted outside your country and you consent to the collection, storage, and processing of your data in the country where this forum is hosted.
Comment