Chip or MAF

[BMWMK2]

I am debating between a miller maf conversion or a dinan chip . The conversion is $400 and the chip is only $175, is spending the extra money for the conversion worth it?
Thanks of the imput

[bkats]

Depends on the objective. The MAF's reported benefits over the chip are minor fuel consumption improvements and better throttle response. Both improve the running tune. I just have the conforti chip and have driven a car with the miller maf/chip combo and these cars just aren't fast enough for me to notice. I tuned up my car with plugs and fuel filter and it felt at least as good as the miller maf car. If you have an auto, make sure you get a transmission chip. Probably better value than the ecu chip if you had to choose one.

BTW, technically, the MAF (gen III) includes a chip, so you're really getting two products vs. the one.

Personally, I got the conforti chip because I like the stock engine look, but when I need a new AFM, I'll consider the MAF just based on the cost vs replacing the lame AFM.

[RSheiman]

Hopefully Bob V. will weigh in (1986series). He had a Dinan chip and recently swapped it for a Miller system...........

[BMWMK2]

I have an 85 635csi manual trans. Just hoping to get a little more umph off the bat. Top end seems good but starting out seems a little slow.

[1986series6]

Hopefully Bob V. will weigh in (1986series). He had a Dinan chip and recently swapped it for a Miller system...........

Ok Rob I will weigh in happily since I lost about 12lbs. recently.

I installed the MAF and I'm very happy with the results.

Here is a post from me this past Jan. after instillation.

Just wanted to update .

I went with the Miller MAF. Installed it over Xmas weekend.

Oh yes, there is a difference.

It's an auto soon to be a 5 speed swap.

Off the line it pulls straight away, not waiting for a windup.

I feel it pull with a smoothness I can't describe.

Throttle response is instant.

When in 4 gear to slowly pass at about 60 or 70

it had to downshift to 3rd to get any power.

Now I can stay in 4th and get enough umph without downshifting.

I'm not talking fast accelerating, just enough power to get to pass

without having to stomp on the go pedal.

SOOOO-thanks to everyone for your input and helping me

decide. I'm a happy camper.


Rob, see ya @ "Idiotfest" in the fall.

[RSheiman]

I fear that the next drive in your car getting food for the Idiotfest crew will compel me to jump on the Miller bandwagon...........

[driftcrazy]

Who here has done megasquirt? I think it would be a better long term solution. The antiquated Bosch electronics don't fare well with time and putting a maf and chip on only puts a band aid on it.

[1986series6]

I fear that the next drive in your car getting food for the Idiotfest crew will compel me to jump on the Miller bandwagon...........

yeah, this time the pie won't be cold

Who here has done megasquirt? I think it would be a better long term solution. The antiquated Bosch electronics don't fare well with time and putting a maf and chip on only puts a band aid on it.

A bandaid is when a problem is masked with a Rube Goldberg solution.

A MAF is one of many upgrades to enhance the driving pleasure of an already wonderful driving machine.

[bmrhvn1]

Originally Posted by RSheiman
Hopefully Bob V. will weigh in (1986series). He had a Dinan chip and recently swapped it for a Miller system...........

I installed the MAF and I'm very happy with the results.

Here is a post from me this past Jan. after instillation.

Just wanted to update .

I went with the Miller MAF. Installed it over Xmas weekend.

Oh yes, there is a difference.

It's an auto soon to be a 5 speed swap.

Off the line it pulls straight away, not waiting for a windup.

I feel it pull with a smoothness I can't describe.

Throttle response is instant.

When in 4 gear to slowly pass at about 60 or 70

it had to downshift to 3rd to get any power.

Now I can stay in 4th and get enough umph without downshifting.

I'm not talking fast accelerating, just enough power to get to pass

without having to stomp on the go pedal.

SOOOO-thanks to everyone for your input and helping me

decide. I'm a happy camper.


Rob, see ya @ "Idiotfest" in the fall.

The PO had installed a Dinan chip in my car. I never swapped the original in to compare. I had it only for maybe a year, and found people saying the Conforti chip was better because it improved the low end more linearly. The Dinan sort of had a "wait, here it comes" response when taking off. Conforti filled in the gap so power felt like it came on smoother. Is that what you're getting from the MAF compared to Dinan? I don't remember comparing the two chips under passing situations like you describe, but I agree it needs to downshift to get up and go. If the MAF improves that it sounds like an improvement over the Conforti to me. I saw a dyno run on the Miller website that wasn't very impressive though. Maybe it was the wrong engine but HP wasn't even up to stock. I think Conforti claimed 208 (stock 185). I might be able to find the paperwork that showed their dyno run. I have an '87 L6. Has anyone used the Ireland Engineering MAF? They sell a not outrageously expensive turbo too.

[Badgas]

The biggest difference with the Miller chip is that it is programable. Miller has several tunes available but the best thing to do is have it tuned on a dyno.

Miller tunes at several shops around the country. Email them through their website to set it up.

The MAF allows for quicker throttle response and better max performance. The WAR chip is great for tunability but if you motor is stock, the other chips should give you some performance gains, just no tunability.

In my case I stroked the motor and changed cam timing so tunability was a must. The hour spent on the dyno unleashed a beast.

[JimmysE23]

I'm just waiting for my maf setup to get here tomorrow. I got tired of the AFM when I had an e23. I'm excited and will be immediately installing it.