3rd and final 7

iTrader: (9)

i know that Rx7carl has done some moding with the SE intake system but i was wondering first is there any updates on this and second has carl or anyone else tried to port the inside of the MAF for mor eand better airflow

3rd and final 7

iTrader: (9)

BUMP Rx7Carl are you out there

jonjonwells

uhhh, i dont think that would be a good idea. If i remember right, that this unit is extremely sensitive to abuse. I have heard of people removing the inner mesh on newer ones to improve flow, but have never heard of anyone successfully modding the actual housing.

3rd and final 7

iTrader: (9)

well if thats not posable what about honing it out and making all smooth out the airway passage?

Max7

Not worth it. Plus you'd be changing the flow and the ECU would not be calibrated to the new air coming in. If you want, drop the GSL-SE guts into a 2nd Gen AFM. More flow, but then you gotta play with the spring adjuster to get it calibrated. Then the Throttle body is to small, so swap that out, then the runners are to small, swap them out. your ports are to small, swap them out, and your rotors are to heavy, swap them out.
It never ends. for the very small gains, its just not worth it, I went down this road 5-6 years ago. its just to much for to little gain.....

3rd and final 7

iTrader: (9)

ive read you how-to b4 i might give it try and see what i can do wit it

Rx7carl

Well Hector and I never got back together on figureing out what happened to the TB I modded for him. Something wasnt right with it, but he bought it sight unseen off ebay and had it sent here. I modded it and got alot of gain (thanks Sterling for your usual quality work on the shafts). But the car didnt run right because of the TB, so he swapped it out back to his stock one. It may have been an issue with a component on the TB, who knows. What I did was strictly airflow related and should not have changed the function one single bit, but at this point I have no answers cause the investigation has stopped. :shrug:

Anyway on the MAF. Its not great, but was better than I expected from its initial visual examination. Max makes a very good point. If you were to port it, it would throw off the whole calibration of it. I dunno how difficult it would be to re-cal it or even if it could be reasonably done, nor how. Any thoughts Max?

rotarygod

iTrader: (1)

I modded one a few years ago. I didn't so much as port it out as I did smooth out the inlets and outlets quite a bit. There was a little grinding but actually more of the work was filling in area with epoxy. I got the shape about as smooth as it could get without modding the actualy flapper size itself. The car still ran fine but I didn't notice any difference in power. If there was any, it was too small to feel. I did run it on the flowbench back then but I don't have the numbers anymore. (I wish I still had any of my afm test numbers) It did improve it somewhat but again it wasn't enough to be worth the effort.

I tried the GSL-SE to 2nd gen afm parts swap and never got it to work properly. The car ran better with the stock afm. Personally I just say ditch the stock ecu and afm altogether and use a standalone. It's much nicer. Removing the afm completely definitely gives you some power. If I put the afm back inline to my engine (megasquirt controlled), it is noticably slower.

3rd and final 7

iTrader: (9)

thanks Max, Rx7Carl and RG i was thinking yesterday about going megasquirt. i ll just put some cash aside annd pick one up and ditch the afm.