Ducman82

any one have a AFM thats busted that they dont need? im thinking of making my own air filter/box thing in my TIG class and need one to play with for size etc.... let me know how much etc.

Jake

mark kibort

use as stock air box from the euro, use a 3.5" common maf (mustang will work) and then make a machined tube that necks down from 3.5" down to the 3" opening of the "U" which holds the "O" ring that seals it from false air. I made one, and then change to the S4 platform. already to go. Just need a maf that can be made to send a similar signal as the AFM does 4.5 to 8volts to the ECU and we can gain 10-15hp on scots car!
mk

robot808

RCinXS has one on ebay right now.

danglerb

Euro air boxes are rare if not NLA, messing one up for a class project doesn't seem that good of an idea.

Metal air box I think will have too much heat transfer.

How about making a Baja plate as a project?

RCinXS

Mark, sent a PM.

Ducman82

mark, that is a great idea, anyone know of any write up on anything like that? i was thinking of doing my own "tube" style air tube and cone filter. but replacing that old pile would just be a grand day indeed!

UncleMaz

I know some folks have done this conversion on NA 944's using Ford MAFs. They also make a provision for the intake air temp sensor (inside the AFM) and adapt it to the MAF. I would be interested in more info on this too. Here is a common VW MAF that is 8V. http://cgi.ebay.com/ebaymotors/VW-GO...#ht_4327wt_932

Ducman82

trying to find a euro TB and U is super hard, so making your own replacement AFM/MAF would rock. any one have info on the setups they are running TB wise that is something they created.

danglerb

Maf swap and you need a way to either reprogram the brain like a sharktuned chip, or use a MAF adapter box.

http://www.splitsec.com/spike/Porsch...e928turbo.html

Ducman82

i will have to check on that... thanks

mark kibort

So, what I did was use the euro air box, Mustang MAF, as part of the split second kit you listed below, and had a tube made that was the replacement for the AFM as far as spacing, and then the MAF attached to it, and also the euro 85 air box with rubber adapters. I designed it to make the entire air box system just be plug and play mechanically. problem was the split second system was expecting the 0-5 volt 944 porsche ECU (motronic) , and the 928 AFM was 4-8 volts. (ljettronic) big problem. If they have a solution for the AFM, on the 928, that is a no brainer. problem with the 928 84ish Ljet computer, there is no way to "flash" the chip or do shark tuning.

edit: checked out the split second site. sounds like they might have a kit for the 928. dont know, as most of the BMW or 944 porsche stuff is different voltages, even though they use a similar AFM. Dont forget, can just use the stock Ljet "U" so that just leaves you to find a euro throttle body. if you dont use the euro throttlebody, dont even do this modification. if the throttle body is 2.5", and the MAF is 3-3.5" , there will be little or no gains. the euro throttle body is 3.3" and the mustang MAF you use on these kits are 3.5".

Ducman82

are the early computers for the L-jet the same as the later years? im going to say yes, but ya never know. hummm..... any pics of that set up mark?

mark kibort

Yeah, Im almost sure all the AFM Ljet computer are the same, or near the same. nothing like what was found in the motronic bmw e30s or 944s

Ducman82

so you never really got it to work correctly?

Brad W

I am watching this thread.
I have a 82 that I put a euro motor in, but the barn door has got to go.