Hi all,
I'm looking for a pre manufactured pipe that I can use for placing the Apexi filter behind the battery. See this one on Elise parts but they can't confirm if the sensor is the same as the one used on our toyota's 1 & 2zz (which I believe are the same).
I would normally go and check dimensions myself but I'm away for a a few days....does anyone know if this is the same sensor and if my one will fit nicely in the 31mm hole on this pipe?
(https://uploads.tapatalk-cdn.com/20170626/b0035fd991127037693976da2c7d5a08.png)(https://uploads.tapatalk-cdn.com/20170626/950dcb62d2223943d8469c05291588d0.png)(https://uploads.tapatalk-cdn.com/20170626/950dcb62d2223943d8469c05291588d0.png)
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I'm sure others have used it with the standard 1ZZ MAF
MWR do a flange that you could have welded onto any pipe of your choosing
I see a few different ways to do this but I like the look of this way.
I saw that one Patrick, works out more than this ready made one by the time it gets over here though, will need to wait till the weekend to measure it, would be ideal if it does fit. Checking all the Denso part numbers is a real pain in the ....!! It's used on MANY cars [emoji30]
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We had a few issues running this pipe with a 2ZZ and CBS carbon airbox. The car would hesitate and wouldn't rev past 7k.
Took it off and put the stock airbox back on, all ok. Really strange I thought because the the pipe diameter looked very similar. I'd be interested to know what the issue was as it sounded glorious.
More likely the position of the MAF in the pipe,if the pipes were indeed the same diameter. Just look at what raising the maf a few millimeters does on the MAF-mod.
Interesting Dudi, thanks for the heads up. So the toyota maf fitted the hole diameter of this pipe ok? Wonder if the height was wrong, or if the CBS air box had something to do with it?
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We tested the car with just the maf pipe and no airbox. There was a slight hesitation but it was better so the airbox with the combination of maf pipe is the likely culprit but I'm sure I've seen the same combo used on here before.
The maf pipe comes with spacers to raise the maf to the correct height so it shouldn't be that. The cars at a garage getting some attention for other issues so I will raise it with them (Bonsai in Weston Super Mare).
Where was the CBS in relation to the MAF? Was there a big bend before the maf
Do you still have the pipe Dudi?
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No straight line. The CBS was in pretty much the exact same place the OEM airbox is. We tried the ducting then without the ducting into the CBS. It could be a MAF issue or something else because we have lazy throttle response when flooring it from low revs but the car didn't want to rev out fully with the CBS + Eliseparts maf pipe. Did a trackday at Combe with the stock airbox and the car pulled well.
Quote from: "Dougster7"Do you still have the pipe Dudi?
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Yeah it's in my garage but I'm hoping to use it with the CBS if the garage can work out what the issue is. It'll be shipped to them imminently to troubleshoot.
Or the CBS is just a crap filter, or very good, depending how you see it and can't flow enough at full load high rpm.
The stock filter is known to flow very well.
Further confirmed by what you said about just running the MAF pipe with no filter.
And as you said; limits to 7k-ish? Can't get any more air?
Quote from: "shnazzle"Or the CBS is just a crap filter, or very good, depending how you see it and can't flow enough at full load high rpm.
The stock filter is known to flow very well.
Further confirmed by what you said about just running the MAF pipe with no filter.
And as you said; limits to 7k-ish? Can't get any more air?
That had definitely crossed my mind but I'm sure I've seen this same combination used on a 2ZZ car on here.
Would be interesting to remove the filter from the housing and try that. That would narrow it down a fair bit. Filters are graded for performance. The K&N filter on had temporarily was limited to 170hp. Not relevant to me, but I was going to put it on Helen's SP240 until I looked it up
Let me know please when they have a look at it. Would be ideal if it works out or if not it'll be mwr flange ordering time.
Patrick, I'm measuring 43 Celsius on idle in the garage! Ambient 17 [emoji15]
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OK, I had one of these.
Don't bother. They're a pile of cack.
AS someone else pointed out to me, if you want to modify the intake, get a stock box, and take it apart for the maf holder.
Temps always shoot up massively on a warm engine when standing still.
I had 34 the other day standing in traffic with wind blowing.
Was that after a good run out?
Nope, just idling for 20 mins while I washed the engine bay (burst drive shaft gaitor) as grease everywhere, then parked back up.
Think I'll maybe go down the mwr route then, least I know the maf will be right height
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Was yours where the filter was basically in front of the engine? That'll do it hehe.
Wrapping manifold helps a bit.
Or just move the filter to behind the battery.
I'd measure my adapter for you but it's 1zz s:( :( s:(
That's correct Patrick, was located beside the coolant reservoir. Manifolds wrapped up and this is me in the process of moving it to behind the battery, since our conversation at CITP, never really monitored the temp before then....and you were so right [emoji1303]
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Well there's a rarity! Haha. Hopefully this helps
There's a 2zz car for sale at the moment and its intake configuration is pretty much the same as mine was. Does the ECU need some fettling to allow aftermarket intakes to function properly?
With the 1zz airbox the car does seem to be running richer with plenty of flames.
I found that it does take a wee run out for the ecu to tune into any changes you've made with the filter, location etc. That pic is where mine is currently, no wrap on that one either....must get hot in there! I also read that the ecu tunes into your driving style over time, mine must be hyped up by now lol
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Liking that cover though [emoji1303]
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I don't think it works quite that way but happy to be corrected.
If the MAF is put in a different place or at a different height, it may be reading a higher or lower mass than is actually entering the engine.
Let's say it reads more and you're in closed loop.
ECU adds more fuel.
But there's not enough oxygen to reach the 14.7 AFR it wants.
So it pulls fueling via the fuel trims. Or, worse, it adjusts timing a bit to compensate for the slower burn of the richer mixture. Or both!
It doesn't have a mechanism to adjust the MAF readings as it has nothing to compare it to. So instead it messes with your fueling/timing which may spill into your open loop.
I noticed this happening when I put my Hurricane intake on, so I adjusted the airflow on the emanage and fuel trims are nice and steady and around 0 again.
So the moral of the story is, make sure the MAF is in the correct place in the tube, there are no big bends before the MAF, and if there are slight changes, modify the MAF readings via piggyback/standalone accordingly.