M16a VVT engine swap

wrote:

When i did my swap I did not bother to use the manifolds or nothing from the m16 as they were of the wrong orientation from the front wheel drive donor.
Everything would be in the wrong place for my jimny.
I just looked at this at a glance and found i would not bother with it as there would be very little or no hp-gain and to much trouble not having a "sport" donor though.

having a standard set-up in the engine bay has its benefits for servicing and spares but if there is a significant gain then maybe it is worth it.

Hence the reason for me buying the GV m16 plenum that had the correct orientation but as i found was the same as the jimny one.
Not sure but i do not think there is no m16 with the correct orientation with a "sport" version. I would however try a slight bigger TB if I could find one. 

As for my exhaust I have changed the constritced heat isolated tube between the two original cats to a 2" one, removed the cat no 1 in the original manifold, and replaced cat no 2 with an aftermarket bigger one. rarely get a fault code, but just reset it and have passed a few MOT now since i did it.

It's a nightmare trying to find something to fit any inlet housing just using google.  Hopefully I have more luck when I get the bits in my hands and maybe go for a stroll in the scrap yard.  I can't see any modding forums with solid info.  But I'll be running with m13 parts for starters, before I decide to part with more cash.  It may even come to resin printing an interface if I find one with the wrong bolt offset.

Hiya, yes I am lurking in the background. 

The rav4 throttle body had potential if an adapter could be made. With 3d printing now an option i would say it was worth a look again. The same rav4 TB could probably be found on most 90's toyota's with the 2.0l engine. its a cable operated model on the rav4 so pretty easy to adapt for a jimny, Much easier than the GSXR600 ITBs on mine 

If there is further info to be had on running the swift inlet manifold it is to be found with Dave Marsh Racing, who are the only ones i know of to have modified a swift inlet setup to work in a jimny. I cant say what inlet control they are using as the swift uses a drive-by-wire system, totally incompatible with the jimny setup, so they must have a replacement TB in there somehow or the ecu to a more modern system

wrote:

If you have the complete injection system on the engine, fit that as it is, I think it will fit?

Then run it with a standalone ecu.

You get the sport output (125/134bhp) and if fitted with a free flowing exhaust, you should exceed it with a custom map.

Cheapest route and guaranteed results. Probably much more sensible than what I'm doing.... lol.

sniper

I think once I move away from the M13 parts, I will more than likely need to look at standalone ECU to run it.  

I'll certainly be having a look at using as much standard parts as I can for the inlet.  I'd be pleased to get some free power, every pound is a prisoner   

I only wanted a little extra power, but now I have another project on my hands.  Ah well, can't take the money to the grave. RIP savings.
 

wrote:

Hiya, yes I am lurking in the background. 

The rav4 throttle body had potential if an adapter could be made. With 3d printing now an option i would say it was worth a look again. The same rav4 TB could probably be found on most 90's toyota's with the 2.0l engine. its a cable operated model on the rav4 so pretty easy to adapt for a jimny, Much easier than the GSXR600 ITBs on mine 

If there is further info to be had on running the swift inlet manifold it is to be found with Dave Marsh Racing, who are the only ones i know of to have modified a swift inlet setup to work in a jimny. I cant say what inlet control they are using as the swift uses a drive-by-wire system, totally incompatible with the jimny setup, so they must have a replacement TB in there somehow or the ecu to a more modern system

The RAV4 TB does look a good candidate, provided it fits onto the 1.6 manifold.  I'm sure I could upgrade my cad skills from tinkercad to fusion and have a crack at an interface adapter, plenty of time for prototyping in-between mods.  Ideally I'd like to keep running with a snorkel, so the bike manifold might not be an option for me.

I had a look at the DMR facebook page and seen his jimny was managed with an ecumaster.  That's a serious bit of kit!  Think I'll be looking at something a bit lower down the market for engine management. Maybe something like the speeduino would fit the bill, I noticed Keithy had mentioned it in a previous forum post. I'm alright with computers, but not sure I'd understand fully how to use it.  Might be a very steep learning curve, but I guess, if it doesn't work out, I cacn just unplug it and put the old one back in.

Couldn't see any pics of the starboard side of the engine to get a look at what's fitted on the intake side, but it's not too impossible that he could still run a cabled TB.  I'm looking forwards to getting back home from work to get started on this project now.

When I was looking at the rav4 tb it was based upon fitting it to the standard Jimny manifold and on the standard Jimny ecu. It looked a pretty straightforward thing because it uses the same TPS sensor for a start and the ICV can be swapped over (I think!, it was a while since I played with it, seem to remember having to clock the sensor around to work maybe). The final ideal would have been to port-n-polish the Jimny inlet manifold as much as possible then adapt to the bigger tb. I did have previous success with the grey jimny using an '04 liana tb, which was slightly bigger than the standard Jimny one and just swapped straight over with no fuss and ran well.

The big problem with the swift inlet is its intake position, which is basically into the bulkhead when mounted inline in a Jimny. It needs adapted or turned around somehow to be any use.

Don't be thinking you cant have a snorkel with ITBs though, I run mine with an enclosed pipercross airbox over the ITBs and connected by silicone tubing to the snorkel. It restricts it by 3hp on the dyno apparently. no big issue and it puts the induction roar right by the drivers window :laugh:

Forgot to mention...

Big power (for a Jimny) means an awful lot of fuel consumption. Something to think about if you are doing a few miles in it. Ulysses averages about 140 miles to a full tank of fuel (roughly £70 round here currently). Most of that is because of it the extra weight and drag of it modified , big tyres and caged, but you will find running on the standard ECU isn't as much of a drop in MPG as my sort of fully tuned setup.
I would be interested to know how Sniper is getting on with MPG after his recent mods... I suspect it will be similar to mine