where can I find any info???????, jdm 7afe head Options

[dans_st]

I recently bought a JDM 7afe head and I am planning on swapping onto my 7af(t)e, I just cannot find any info on what to do since the JDM 7AFE does not have a distributor, I have tried searchin, and all I find is "JDM 3SGTE" stuff.
I would like any information I can get, I am not too concerned with the loss of EGR as my car is not using it right now anyways I just have a resistor on it and it seem fine.
I have also heard that I can use a ford EDIS system, what do I have to do to do this, I do not want to got over to a standalone, I currently am just running stock ECU with SAFC-II and plan to either looking into PROM tuning or if I cannot do that possibly go to E-manage ultimate.

Also is has anyone ever looked into siamesing the intake/head ports on intake side, I have done this on my 350 TPI Camaro, and it has really raised my powerband and output and the runners are very similar.I lost some torque output but am willing to do so to gain some higher RPM HP.

this is part of a long term project just I am trying to get as much info as I can.
thanks for your help
-Daniel

This post has been edited by dans_st: Apr 8, 2007 - 2:14 AM

[dans_st]

Kwanza26 Posted Yesterday, 02:48 PM
What do you mean the JDM 7AFE doesn't have a distributor? Does it have coil over plugs, coilpacks, etc? You can hook up your USDM distributor and it should work so long as you use the stock ECU and the exhaust cam has the slot for the dizzy (which it should). Just because it's a "JDM 7AFE" doesn't make it any better than a USDM one. If you want to go DLI, then you'll need an aftermarket standalone ecu. No ifs ands or buts. The ford EDIS "mod" so to speak is typically used in conjunction with Megasquirt, a standalone ecu system. There is no practical way to "chip" the stock ECU to run DLI. Personally... I think the non-TVIS 7AFE head is far superior to the TVIS 7AFE head based on the intake port designs alone.

As for the intake manifold... if you're reffering to TVIS... here's some info for you. TVIS is NOT a horsepower design. It is a designed based on restriction and intake velocity to make torque below 4000rpms or so... IMO, it's completely useless depending on the type of turbo you're running. FYI, most 3SGTE guys when they go with bigger turbos and more efficient set-ups... they get rid of TVIS because it's a restriction under low throttle and rpms.

I beleive my head was meant to be ran off a coil-pack type setup being triggered by a camshaft angle sensor.
the head does not have the opening for the dist to mount-connect to cam.
I currently have the OEM intake manifold that I have ceramic coated and ported as much as I feel as I can safely go, and I know that the TVIS head does have smaller ports, but there are two of them and what I wanted to do was to weld a plate on top and bottom or runners and siamese the ports to make one bigger runner and do the head as far as I could also. So that I could get more airflow.And correct me if I am wrong but in theory due to the long runners I should get descent torqe, and larger cross section will allow more airflow allowing me to make more HP and also moving my powerband up as well where my turbo should help it out alot more.

Also, I understand what you are saying about the butterflies being a restriction (and to siamese the runner I would have to remove then anyways)
But, I had heard unless you are making 300+HP you would want to keep them and I don't think I am going to be making over 300HP so I was just making sure I wouldn't be losing power by taking them out, And I understand I will be losing torque but I would rather have the high RPM HP instead.

Also if it would help to identify the head easier tomorrow I could try and take some pictures
-Daniel