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View Full Version : is there a way around the MAF???



Twunka
22-10-2006, 04:29 PM
hey as the title makes obvious is there a way around the MAF like would a emanage allow me to remove the MAF all together as i'm designing a ITB system and dont wanna make it and fit it and then find out ummmm where do i plug this thingy into lol. the only other option i have thought about is sealing up the ITB's to the maf then straight outta the top of the bonnet and into a scoop (yep a filter on there too i'm not stupid) however if i do this method will the ITB's get enough air flow through the maf for 6x throttle bodies and then will the heat that comes straight up through the engine kill the MAF on the initial runningo of the engine.

Black Beard
22-10-2006, 04:43 PM
I dare say you won't be able to get it to run properly without a full replacement ECU.

Good luck though - sounds awesome.

Twunka
22-10-2006, 04:46 PM
dang it i thought so well it sounds like the MAF is goin into the scoop too (does give me a thought though)

likeashot
22-10-2006, 05:45 PM
I'm no expert but if your going to run ITB's then you'd be beta off with a full replacement ecu anyway:)

Twunka
22-10-2006, 06:02 PM
yeah but monies a little tight at the moment so i'm just after a temp fix till i can afford a full replacement ECU

likeashot
22-10-2006, 06:10 PM
i know where your coming from mate mo money mo money :badgrin:

Sports
22-10-2006, 07:11 PM
If you run 6x throttle bodies you will need a MAP sensor or the long way 1 AFM per throttle body for the best results. Anyway that means Haltech, Motec or the like.

Twunka
22-10-2006, 07:17 PM
k i'm thinking if i use a small TB and grind it down to minimal size (i'm thinking a 45mm TB and grinding it down to around 55mm deep then i should have a fair ammount of clearance between this and the bonnet. (keep in mind that the old upper intake manafold will be gone except for about 20mm of the base for the injectors to line up in and the likes). so i should hopefully have enough room to make a air channel from the scoop (i wish there was another way) to the TB's and implimenting the MAF in there for now till i can get a full replacement ECU,

also i have been doing 2 designs, 1 is the TB's in a straight line right above the injectors and cylinders, the 2nd is doind the TB in a staggered formation however this would mean the the manafolds would extend in lenth for the 1st and last cylinder and get smaller as it got to the middle of the lineup. would this cause any problems with the engine as air would get to the 1's and last later than it would with the middle ones.

Sports
22-10-2006, 07:24 PM
it wont work on the stock ecu, each cylinder is gonna suck in way to much air, u got 6x 45-55mm TB's compared to 1x 65mm TB, how much more air is that. An interceptor might be able to do it, dont know though. The AFM is gonna measure all the air going in right, your gonna have design your setup in a way as to ALL the cylinders get exactly the same amount of air.

Yeah wait till you can tune each cylinder individually and get a MAP sensor.

Twunka
22-10-2006, 07:44 PM
well if the stock ECU can handle up to 6 PSI pressure then whats to stop it from being able to run slightly less than 0 instead of having to vacume it like stock

ps. i'm glad theres someone on here that isn't jumping down my throat and actually knows a thing or 2

likeashot
22-10-2006, 07:52 PM
it wont work on the stock ecu, each cylinder is gonna suck in way to much air, u got 6x 45-55mm TB's compared to 1x 65mm TB, how much more air is that. An interceptor might be able to do it, dont know though. The AFM is gonna measure all the air going in right, your gonna have design your setup in a way as to ALL the cylinders get exactly the same amount of air.

Yeah wait till you can tune each cylinder individually and get a MAP sensor.

:stoopid: Haltechs are cheap on e-bay

GoTRICE
22-10-2006, 08:28 PM
well if the stock ECU can handle up to 6 PSI pressure then whats to stop it from being able to run slightly less than 0 instead of having to vacume it like stock

ps. i'm glad theres someone on here that isn't jumping down my throat and actually knows a thing or 2

air won't flow into each t/b evenly, the stock ecu even with a piggy back couldn't compensate to each individual injector as i believe it just feeds every injector the same amount...

I have a mad idea, involving a custom radiator which is way shorter and intake pipes made to run being fed from behind the grill... nah... Although my gto radiator is the same width but shorter....

Sports
23-10-2006, 03:57 AM
well if the stock ECU can handle up to 6 PSI pressure then whats to stop it from being able to run slightly less than 0 instead of having to vacume it like stock

ps. i'm glad theres someone on here that isn't jumping down my throat and actually knows a thing or 2


Which cars have 6psi going through a stock tune'd ECU? The supercharged ones have a new map put on to them.

KING EGO
23-10-2006, 05:44 AM
hey as the title makes obvious is there a way around the MAF like would a emanage allow me to remove the MAF all together.

*Cough* Haltech E6X Stand alone ECU *Cough*..:P

The_Monk
23-10-2006, 06:22 AM
You just missed out, my brother was selling his old wolf 3D for $800