Any D4D Air inlet specialists out there?

[VMN]

Hi guys,

I'm just posting this up for an associate in the US attempting to shoehorn a second 300 amp alternator into the Hilux. To do this, he has to replace the factory air cleaner with a K&N filter and filter box to make some room. When he does this, the engine runs very sluggish and the only thing he can put it down to is turbulence or the like and they have noted there are some vanes in the air inlet near the MAF sensor. I vaguely remember seeing these the last time I had a filter out.

So any ideas guys? Has anyone fitted an aftermarket air filter in lieu of the factory one?

[bill_i_am]

Let me first apologise in advance Rod as this post offers no assistance to your question whatsoever, but can I ask why the second alternator and why 300amps? Just curious what he's powering?

[VMN]

Let me first apologise in advance Rod as this post offers no assistance to your question whatsoever, but can I ask why the second alternator and why 300amps? Just curious what he's powering?

Yes you would think one would be enough. The guy who phoned me makes the alternators so it sounded interesting enough to ask the question here. It is for an Armoured vehicle market, not just one vehicle.

[jap]

In my experience on the 1GR (info could be useless, who knows), the MAF meter is very sensitive to disruptions to airflow.
According to some guys in the States, K&N make a great filter, but zero thought goes into the intakes.
I have experienced this with the K&N intake on mine, while it looks the part, the ECU is constantly on the short and long term fuel trims trying to correct.

As I said, it may be irrelevant, but I am willing to bet that it may be the case and it might come down to the fact of if he wants to fit this gear, he needs to get someone to do some R&D on a new intake to suit his packaging.

[john253a]

be nice to see how this turnes out, as i also tried to fit a second alt, getting it all to fit was easy it was just the relocation of everything else that put me off.

[VMN]

be nice to see how this turnes out, as i also tried to fit a second alt, getting it all to fit was easy it was just the relocation of everything else that put me off.

Johnny you won't need a second alternator. They have an upgrade kit to a 300 amp alternator for the Hilux that replaces the factory one.. All it needs is upgrade of the battery cable to the alt to handle the extra current. If you are interested let me know by email on the contact us page of my web site below and i'll see if i can round up a brochure. Sorry, I don't have pricing but if there is interest, these could make it to the VMN store.

[Rebs]

A bit off topic but I would be interested in a second alternator too, as you could set up a separate charging regime to suit the onboard aux batteries in the lux and the camper.
Upgrading the std alternator has merit but the later luxes (euro IV compliant or whatever) have ecu controlled low charging voltages that is not the most efficient for charging aux batteries.
If I could get a 2 wire bosch alternator spinning under the lid it would solve a few issues IMO.

[VMN]

Rebs I raised that and they said they have a solution to low voltages but I don't have specifics yet.

[john253a]

Johnny you won't need a second alternator. They have an upgrade kit to a 300 amp alternator for the Hilux that replaces the factory one.. All it needs is upgrade of the battery cable to the alt to handle the extra current. If you are interested let me know by email on the contact us page of my web site below and i'll see if i can round up a brochure. Sorry, I don't have pricing but if there is interest, these could make it to the VMN store.

I already have had my alt upgraded to 280amp and still can stall my car on fwy due to insufficient power to hold open fuel solenoid, and if i drive and night its even worse, im dreading when i get around to installing my lights.

[john253a]

A bit off topic but I would be interested in a second alternator too, as you could set up a separate charging regime to suit the onboard aux batteries in the lux and the camper.
Upgrading the std alternator has merit but the later luxes (euro IV compliant or whatever) have ecu controlled low charging voltages that is not the most efficient for charging aux batteries.
If I could get a 2 wire bosch alternator spinning under the lid it would solve a few issues IMO.

that is the same alt i tried using, once all the covers and air intake is removed it can easily be squeezed in, i had a temp bracket made out of 1mm tin,(something easy to work with for mock up) but when i went to refit covers and air box it got beyond a joke, it was near impossible,

if have science looked at mounting it off rear drive shaft
up at the gearbox, there are many kits you can buy for mounting on diff but i feel it can be damaged to easily there.

[john253a]

the same as this but only at gearbox end


Its not perfect as only chargers when driving,but its better then nothing and will charge a second battery faster and more effectively then a duel battery setup.

another way is off flywheel as in pic

from top

from under car


but as there is no room in engine bay, the alt would still need to mounted next to gearbox,
the only other problem is, this can only be done to auto models, as to replace the belt on a manual box would mean it has to be remove, but on an auto, only the converter bolt need to be undone and the belt slipped in.

[Loose Screw]

In my experience on the 1GR (info could be useless, who knows), the MAF meter is very sensitive to disruptions to airflow.
.

If that's the case would fitting a snorkel adversely affect performance, economy & throttle response? Just curious...

[lais817]

Johnny you won't need a second alternator. They have an upgrade kit to a 300 amp alternator for the Hilux that replaces the factory one.. All it needs is upgrade of the battery cable to the alt to handle the extra current. If you are interested let me know by email on the contact us page of my web site below and i'll see if i can round up a brochure. Sorry, I don't have pricing but if there is interest, these could make it to the VMN store.

I already have had my alt upgraded to 280amp and still can stall my car on fwy due to insufficient power to hold open fuel solenoid, and if i drive and night its even worse, im dreading when i get around to installing my lights.

Dude, what on earth are you running to drain all that power?

[Qwerty]

Johnny you won't need a second alternator. They have an upgrade kit to a 300 amp alternator for the Hilux that replaces the factory one.. All it needs is upgrade of the battery cable to the alt to handle the extra current. If you are interested let me know by email on the contact us page of my web site below and i'll see if i can round up a brochure. Sorry, I don't have pricing but if there is interest, these could make it to the VMN store.

I already have had my alt upgraded to 280amp and still can stall my car on fwy due to insufficient power to hold open fuel solenoid, and if i drive and night its even worse, im dreading when i get around to installing my lights.

Dude, what on earth are you running to drain all that power?

Agreed, WTF?

I have a V6 which only comes with a 100amp alty (D4D has i think 130amp?), which in reality means about 70amps ... and that runs everything, highbeams, lightforce spots, foggies, DC charging and so forht.

I DO have an issue at night if im idling , in gear, with EVERYTHING on ... i start getting shortfalls and eating into starter battery ... but as soon as that happens, my DC charger switches off and thus prevents the issue deadening my starter battery ... only negative of that is my 115ah aux battery will occasionally not be getting charge (soon as you give revs, everything is sweet anyway) ... which is not an issue for me with several day run time on aux anyway. Just means if im idled somewhere on a beach at night, i turn my beams/spots off until I take off again.

It still manages to charge my battery, and my AUX battery is charged with a 20amp DC-DC charger (which pulls current off the alternator) ... to correctly charge the aux battery to 100% (which no alternator will ever do, alternators by design will only give about 70% SOC, especially if using different sizes or types of batteries).

280amp and you can't keep up? with what exactly? arc welder??! ha ha

[jap]

In my experience on the 1GR (info could be useless, who knows), the MAF meter is very sensitive to disruptions to airflow.
.

If that's the case would fitting a snorkel adversely affect performance, economy & throttle response? Just curious...

Apologies for not explaining that better.
I'm sure restriction to flow is an issue on its own, but I have observed changes between mildly 'uniform' airflow through a filter and then failure to idle with that same filter off the intake pipe.
The MAF meter design on the Toyota is different to others i've checked out, the GM ones for example have the honeycomb style mesh in front of them to create laminar flow.

[john253a]

Dude, what on earth are you running to drain all that power?

only a stereo 250amp(280a alt) = around 3-3500watts, when your looking at high end and loud you need big watts,
and to exceed 3500watts is very easy