big_boz Posted February 17 Posted February 17 Has anyone remapped a 2.4? Looks to be c.22bhp/28nm gains on offer in the 170bhp version In the ah20. Seems quite strong gains for an na petrol.
pipsyp Posted February 18 Posted February 18 Yeah quite a few places offer maps for them, even the 1st gen. I can only assume the factory mapping is quite tame, and being a relatively large capacity 4 cylinder there's a bit of room for improvement. I wouldn't be surprised if it involves increasing the factory 6250rpm rev limit and tuning it to make a few more ponies at the top end. This one reckons c. 179hp can be made.....given the engine is probably the same as the 2nd gen bar software it wouldn't surprise me TBH. https://puretuning.net/en/chiptuning-files/toyota/alphard/2-4i-160hp I think the 2.4 gets a bit of flack for being underpowered, but honestly even stock I'm rather impressed with how well it hauls a vehicle the size of an Alphard around. It's also noticeably more perky when run on high octane fuel. Certainly it's not as effortless or relaxed as the V6 (nor sounds as good) but if you rev it out and are prepared to use the manual gears (will let you hit the rev limit then) for a minivan they tear along quite nicely I think 👍 In the US there is a bit of a following for turbocharging these motors in Camry's, where they then easily make late 200 bhps on very modest boost. I did watch a video of some guys in Australia that also eBay turbo'd a cheap Camry they bought and with next to no playing around (I think it may have had a standalone ECU being the only thing....£££££) it made about 260 brake. I'll be honest, if someone in the UK put together a decent, reliable kit for it and I had the funds, I would probably consider it for a laugh!
big_boz Posted February 18 Author Posted February 18 Yeah, the wife's 2.4 is about to become my daily and although I know it drives pretty well, I'd prefer a bit more poke and I don't really want to chop it in for a v6 just yet. The gearbox seems to make a decent stab of giving the feel or a reasonable amount of torque in the low end, but a touch more wouldn't hurt. Celtic appear to offer a map for the 2az in the Alphard, I have emailed an enquiry, I'll see what they come back with. 1
big_boz Posted February 18 Author Posted February 18 https://puretuning.net/en/chiptuning-files/toyota/alphard/2-4i-170hp That's the ah20. 170-192bhp
pipsyp Posted February 18 Posted February 18 31 minutes ago, big_boz said: https://puretuning.net/en/chiptuning-files/toyota/alphard/2-4i-170hp That's the ah20. 170-192bhp Impressive if that's realistic eh?!
big_boz Posted February 18 Author Posted February 18 Not bad for an na for sure. Would love a map for the box that causes it to used fixed ratios as well! 1
pipsyp Posted February 18 Posted February 18 Ah of course the 2nd gens a CVT right? Funny the 4 speed in the Mk1 isn't too bad TBH, because they have good torque for a 4 cylinder NA despite the pretty wide ratios it does pull them pretty well. Also it's rear converted with a pop top, probably not much change out of 2 ton lol
big_boz Posted February 18 Author Posted February 18 Ah is the 10 series a torque converter auto? Thought it was CVT also.
big_boz Posted March 2 Author Posted March 2 Got the map done yesterday via a local outfit. Initially pleased with it, feels more Torquey and appears to cruise at 70 mph at a few hundred less rpm. Better pick up and the gearbox is making less fuss. 1
pipsyp Posted March 3 Posted March 3 10 hours ago, big_boz said: Got the map done yesterday via a local outfit. Initially pleased with it, feels more Torquey and appears to cruise at 70 mph at a few hundred less rpm. Better pick up and the gearbox is making less fuss. Where you get it done in the end big_boz?
big_boz Posted March 3 Author Posted March 3 So the local firm to me (in Leeds) is called matrix remaps. They use software from a bigger outfit called elite remaps (also in Leeds) appears to be a franchise based set up if I were guessing. Not used before but all my usual go to's couldn't source the map. Very professional service, guy had all the gear including the battery stabilizer (seen COVID fly by night mappers bricking ECUs not doing this). Had to come and scan the car to get the ECU info, found the correct map then came back the following day to upload. Drove it around quite a bit yesterday and I would certainly say it drives better, gearbox is definitely not hunting up the range quite so much on hills and it feels more relaxed. Can't immediately get a read on fuel consumption but it looks about the same at c.6 miles per litre (c.29 mpg) on the dash local running about. Be interesting to see what it does on a fully loaded run, it would be nearer 7 miles per litre (call it 32mpg) pre map, if it goes over 7 il be a happy bunny. 1
pipsyp Posted March 3 Posted March 3 (edited) You might do already chap, but if not definitely give 99ron a go. Found my 2.4 drives quite a bit better on it, top end performance when revved is definitely improved too. Probably all the better on yours now!! 👍 Edited March 3 by pipsyp
big_boz Posted March 3 Author Posted March 3 4 hours ago, pipsyp said: You might do already chap, but if not definitely give 99ron a go. Found my 2.4 drives quite a bit better on it, top end performance when revved is definitely improved too. Probably all the better on yours now!! 👍 Only ever run it on super, gives me a reason to go to Costco to fill up...on fuel and pizza 😂 1
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