Im not to up on ECU and chips. I was wondering what I have to look for when getting one?

 

I have forged internals, 740cc injectors, GT28R tubs.

 

The reason I ask is BAZZ has a Socketed ECU and 740cc chip for sale and was wondering if this would be ok? Does the type of chip matter if running a AFC and dual intake with a dummy MAF?

 

Thanks,

 

Ant

I ran this chip with single air filter and MAF while i was running in the engine prior to fitting the AEM and getting it mapped if that is any help?

What are you running currently ? or is it not on the road. With the setup you describe a socketed ECU is a must so that you can change the mapping to suit the environment you plan to use the car in, i.e. as a everyday road car or a track day car. You can send you ECU off to someone like John Dixon (on here) and he will modify it to fit a socket and do you a chip, so you will have to decide what you are looking for performance wise and of course costs.

Thanks for the replys. Car is still off the road as im still building it. It won't be a everyday car just weekends.

I will be going for a socketed ECU as youv'e mentioned and I think I will speak to John Dixon when it gets nearer the time about getting a chip.

Is John Dixon the only person who could supply the chip and socket the ECU?

Would it be worth fitting a dual pop and Apexi AFC-II before i run the car in?

 

Thanks again,

 

Ant

Ant,

 

FYI - you won't find any so-called "off the shelf" chips for anything over 555cc setups. That's because there are too many variables in the setup to account for using a "universal" approach. Your only option is to get the car setup on a rolling road and have a custom chip made to suit your particular setup. John Dixon is probably only one of a few people in the UK who can do this so I would recommend you go down that route.

 

HTH

 

Regards,

Or you can install something like Nistune (or megasquirt, I think, according to some folks) and remotely program your ECU 'on the fly' using a laptop, prob best to let an expert do this for you on a rolling road if you're not confident, saves a lot of fiddling about with programming chips. This method also gives you good diagnostic info whenever you want it.

I can't speak highly enough of Nistune, even though I'm beginning to sound like a scratched record :-D

Cheers

H

So I could use a 740cc chip on a single airfilter and MAF. Then fit the dual intake and Apexi AFC-II when I get the car mapped?

 

Rob, I've not heard much about the Nistune and must read up more about it. I have been thinking about this as one possible way to go or maybe the Emerald. Did the Nistune cost much?

 

Thanks,

 

Ant

Edited December 20, 200915 yr by Ant_300zx

Hi Ant,

Yes, you can run a 740cc chip with single MAF etc. I can supply something as a get-you running solution so you can run the engine in if it's fresh built then map it later if you want.

If you need to go dual intake then my advice is don't. Just bin it all off and fit a standalone.

By the time you buy a second MAF and an SAFC you're nearly half way to the cost of a standalone anyway and you won't get the running issues of a dual intake.

Nistune is excellent, I use it to map the stock system with, the problem is you're still limited to using the MAF's so you'll still have low speed issues.

Cheers

I guess Nistune more or less removes the need for an AFC. Can't remember exactly what the cost was but me and a mate bought the software license and Consult cable between us, the only other expense was the daughterboard which is installed in the ECU. Think we ended up paying about £450 between us including shipping fron Aus, would be about £300 for a all the bits required for 1 install.

If you're going to 'fiddle' with it yourself you really need a wideband O2 sensor as well, we got an Innovate LC-1 for about £150. nistune.com.

Cheers

H

So how much power is the single intake setup capable of? i was thinking of the dual setup but with all the hassle is there much point? will i be missing out much?

Nistune does remove the need for the AFC as a fuel controller although it is still good on a dual intake system to average the MAF voltages.

Single MAF will do ~500bhp.

Nistune does remove the need for the AFC as a fuel controller although it is still good on a dual intake system to average the MAF voltages.

Single MAF will do ~500bhp.

 

ok what if i buy the q45 maf? will that help and can i just fit it inplace of the z32 maf?

Yes it will, but it needs some re-wiring and chip mods. Prob best to see if you actually need it first.

Yes it will, but it needs some re-wiring and chip mods. Prob best to see if you actually need it first.

 

How do i know if i need it?

 

i want to run 21psi wont the z32 maf max out?

 

One last thing will a z32 induction pop filter fit on the q45 maf?

As higher boost PSI doesn't always determin the final bhp, a rolling road will tell you if you've reached the limits of the MAF. It's volumetric size dictates the maximum bhp you can run. Q45 MAF is a good wee upgrade though and very common amongst other cars..

Oh am not aware of changes to the eprom being needed though given the small increase in size and teh same pulsed signals going to the ECU, only 1 way to find out though lol

smithy

As higher boost PSI doesn't always determin the final bhp, a rolling road will tell you if you've reached the limits of the MAF. It's volumetric size dictates the maximum bhp you can run. Q45 MAF is a good wee upgrade though and very common amongst other cars..

Oh am not aware of changes to the eprom being needed though given the small increase in size and teh same pulsed signals going to the ECU, only 1 way to find out though lol

smithy

 

Well it seems like an easier and less stressful mod than the twin intake setup....... and seeing as il only be aiming for 550bhp or so, it seems ideal.

I already have the AFC and dual pop with dummy MAF. What sort of running issues do you get with the dual intake?

I've been told that I should be pushing around 480-550 bhp so that was why I looked a dual intake and the AFC for a solution till I can afford the standalone.

Has anyone used emerald or have any views on this please?

 

I think I need to read up more on the standalones and see where I want to go with this whlie I'm running the car in.

 

Thanks for all the replys.

 

Ant

The issues with dual intake are normally:

Surging/stuttering around 1500-2000rpm on light throttle. Can be helped to some degree by shielding the filters from the incoming air.

Idle control is not too good. Idle air is only taken from one intake pipe so the active MAF does not give an accurate representation of 1/2 the air flow. There are all sorts of pipework mods and stuff you can do to help but they don't overcome the other issue which is that the MAFs just don't work all that well at such low flows, they tend to be a bit variable.

 

Should have the emerald up and running in Slick Pete's car early in the new year and the conversion kits available not long after. Used the emerald on loads of cars and always go back to it, does everything you need, is pretty cheap and the mapping/diagnostic software is the best of all the aftermarket ones I've used. Also the support of emerald is superb - small company so you always get to speak to the right people.

The issues with dual intake are normally:

Surging/stuttering around 1500-2000rpm on light throttle. Can be helped to some degree by shielding the filters from the incoming air.

Idle control is not too good. Idle air is only taken from one intake pipe so the active MAF does not give an accurate representation of 1/2 the air flow. There are all sorts of pipework mods and stuff you can do to help but they don't overcome the other issue which is that the MAFs just don't work all that well at such low flows, they tend to be a bit variable.

 

Should have the emerald up and running in Slick Pete's car early in the new year and the conversion kits available not long after. Used the emerald on loads of cars and always go back to it, does everything you need, is pretty cheap and the mapping/diagnostic software is the best of all the aftermarket ones I've used. Also the support of emerald is superb - small company so you always get to speak to the right people.

 

 

Have you had any experience with the q45 maf on a z32 or even s13/skylines etc....

how does it work compared to the dual intake setups?

i know its only benifical up to 20% extra but thats all my setup would really require.

Would the resolution be ok with the q45 msf.... lol sorry for all the questions......

Haven't personally done it but it should resolution wise it should be fine.

Other option might be to put the Z32 maf guts in a bigger pipe or use maybe a ford lightening MAF if its cheaper. I'll see what I can find out, know the lightning one is popular as a conversion on other stuff.

Haven't personally done it but it should resolution wise it should be fine.

Other option might be to put the Z32 maf guts in a bigger pipe or use maybe a ford lightening MAF if its cheaper. I'll see what I can find out, know the lightning one is popular as a conversion on other stuff.

 

great sounds good, any news on that chip mate?

Jimmy, chip should be done tomorrow, not sure when you'll get it with the Xmas break etc.

 

Looked into the Lightening MAF and it should be good for about 700bhp and should fit quite nicely. Will see if I can get a price on it for a non-exchange part. Should be cheaper and more available than the Q45 one too.

Jimmy, chip should be done tomorrow, not sure when you'll get it with the Xmas break etc.

 

Looked into the Lightening MAF and it should be good for about 700bhp and should fit quite nicely. Will see if I can get a price on it for a non-exchange part. Should be cheaper and more available than the Q45 one too.

 

Thats great, il be waiting your pm ;)

Looked into the Lightening MAF and it should be good for about 700bhp and should fit quite nicely. Will see if I can get a price on it for a non-exchange part. Should be cheaper and more available than the Q45 one too.

 

Hi John,

I'll be interested to know a price on this as well please.

 

I think by the time the car is finished and i have run it in I will wait for the emerald as this seems to be a good way to go.

 

Thanks for all your help.

 

Ant

Haven't personally done it but it should resolution wise it should be fine.

Other option might be to put the Z32 maf guts in a bigger pipe or use maybe a ford lightening MAF if its cheaper. I'll see what I can find out, know the lightning one is popular as a conversion on other stuff.

 

Hi John - what does the voltage max out at?! I thought this was an issue too, as well as the physical size of the MAF body?

The voltage only maxes out as the element is reading its max flow for a given pipe diameter:

Range of voltage is 0.4-5.12v from the maf.

Put the maf in a bigger pipe of diameter y instead of original x then the max airflow read at 5.12v is increased by the ratio of the areas so (x/y)^2