Bilbo's Scrapeyard Spec Eunos

[FFS Corders]

Apr 28, 2020 13:34:24 GMT scottydugg said:

You've got me looking into a speeduino unit now, all this performance modding and I'm still running the 30 year old ECU.

I wonder would it shoot flames

It would if you put certain numbers in The right areas!

[Bilbo]

Apr 27, 2020 22:22:46 GMT atlex said:

the wideband plug/connector with the aem-X kit fits *really* well in one of the A/C holes. :-)

It certainly does, as I just found out this evening!

Apr 27, 2020 23:41:22 GMT Zed. said:

Apr 27, 2020 21:36:49 GMT Bilbo said:

Sorry to hear about your dad mate, hope you're doing ok. 

ha, maybe I shouldn't have mentioned that - or maybe added that it was in December

I'm not blaming James, gonna go through my emails to check if I sent the message (was a bit of a busy time...) but sorta been pushed to the back of the 'to do' list

Rich.

Christ man, sounds like you had a bit of a rough run with things, hope things have improved for you since.

Apr 28, 2020 13:34:24 GMT scottydugg said:

You've got me looking into a speeduino unit now, all this performance modding and I'm still running the 30 year old ECU.

I wonder would it shoot flames

Hahaha well, as Corders says, yes it will. My old one with decat used to pop the odd flame on limiter gear change so I'm told by friends. The big flames though I managed to get with launch control set with timing retarded quite significantly (if you have a cat in place I would strongly recommend not doing this as it won't last long  ):

[Bilbo]

Some more progress on the ITB build in the last couple of days, though rain has delayed me a bit.

I bought some trumpets, and these arrived after Hermes somehow managed to fail to deliver them the first time

I found them randomly on Ebay, they're off of the carbs on an old GSXR 1100 apparently, and I got very lucky with the width of them:




They just about fit next to each other with about 2mm of clearance!

Now bolted on:




My silicone joiners finally arrived, so I test fitted the throttle bodies to the cut down intake manifold today:



It all fits nice and snug, though some adapting will be required, the silicone is too long so will be cut down so the bodies can butt up to the intake manifold ports. Should make a less flimsy final product, and reduce the chance of any sagging or vac leaks.

Unfortunately the jubilee clips I bought for these are just a tad too small. I focussed on the port diameter, and not the outer diameter of the silicone joiners, d'oh. Oh well, slightly larger ones ordered and should hopefully have it all bolted up by the weekend!


As for the wideband install, it is now under way. I cut my AC pipes off (will do full delete soon) to free up the 2 holes in the firewall, and I ripped the AC unit out to make access nice and simple. The AC was fully dead with zero gas left in the system, which was very convenient.

Last time I fitted the gauge into one of the middle air vents like most people do. However this car the previous previous owner had, for some reason, decided to cut a shallow hole in the crash pad and fitted some weird little clock. The clock was already gone when I got the car, so I decided I'd enlarge this hole and punch it all the way through to sit the wideband in. I cut the outside just about enough so that the gauge is a really tight fit:




A fairly neat solution I think, and it doesn't look too out of place there. The good thing about this position is that with the glove box removed, it is super easy to get to the back of the gauge to feed the harness where you need it to go. Will hopefully have it wired in by Saturday.

[Zed.]

Apr 29, 2020 21:37:21 GMT Bilbo said:

Christ man, sounds like you had a bit of a rough run with things, hope things have improved for you since

Ha, whats the worst that can happen?

well, thats another story

anyway....
theres a Fb group that might have some usefull content 
www.facebook.com/groups/2288301948101723/
but theres a lot of toyota 20v itb fanbois on it 

and, in reality...

mighty5s.com/post/39050/thread

Mar 27, 2019 20:49:38 GMT Tom said:

some ideas for you & shows possible layout?

Rich.

[dadbif]

I like the coolant reroute on that, but why the carbon canister?

[scottydugg]

Apr 29, 2020 21:37:21 GMT Bilbo said:

Apr 28, 2020 13:34:24 GMT scottydugg said:

You've got me looking into a speeduino unit now, all this performance modding and I'm still running the 30 year old ECU.

I wonder would it shoot flames

Hahaha well, as Corders says, yes it will. My old one with decat used to pop the odd flame on limiter gear change so I'm told by friends. The big flames though I managed to get with launch control set with timing retarded quite significantly (if you have a cat in place I would strongly recommend not doing this as it won't last long  ):

Because of this thread I've gone and picked up a Speeduino 0.4   no cat so hoping for some flames, great progress btw.

[Bilbo]

Apr 29, 2020 23:51:17 GMT Zed. said:

Apr 29, 2020 21:37:21 GMT Bilbo said:

Christ man, sounds like you had a bit of a rough run with things, hope things have improved for you since

Ha, whats the worst that can happen?

well, thats another story

anyway....
theres a Fb group that might have some usefull content 
www.facebook.com/groups/2288301948101723/
but theres a lot of toyota 20v itb fanbois on it 

and, in reality...

mighty5s.com/post/39050/thread

some ideas for you & shows possible layout?

Rich.

Thanks man, I saw that thread a couple of days before you posted this, really cool setup tbf!

I am also already in that FB ITB group, it's quite good to see quite a lot of people cracking on with ITB builds!

Apr 30, 2020 10:44:27 GMT scottydugg said:

Apr 29, 2020 21:37:21 GMT Bilbo said:

Hahaha well, as Corders says, yes it will. My old one with decat used to pop the odd flame on limiter gear change so I'm told by friends. The big flames though I managed to get with launch control set with timing retarded quite significantly (if you have a cat in place I would strongly recommend not doing this as it won't last long  ):

Because of this thread I've gone and picked up a Speeduino 0.4   no cat so hoping for some flames, great progress btw.

Haha, yes then! Oh you'll get flames if you set it up right. Speaking of which I need to decat mine, but with the Malian I can't bare the thought of it. When this is over I have an RSR manifold at a mate's house, and I'll sort a decat and either a Cobalt or 5Parts system with a custom shotgun style tip. That's the plan anyway.

[Zed.]

May 2, 2020 22:37:48 GMT Bilbo said:

I am also already in that FB ITB group, it's quite good to see quite a lot of people cracking on with ITB builds!

lol.

saw you on there

as to itb's, you should have done them on the last 5........


and kept it


Rich. (I'm using Hayabusa tb's....)

[Bilbo]

Ok, so rain held up progress during the week, but today was glorious! Much was done.

I didn't get many photos as I was flat out, but I bolted together and test fitted the ITBs:



Note how I've opted to flip the throttle bodies themselves over, this makes a shorter run to the original TPS loom, and a shorter run for the throttle cable also. As well as this it hides the filled injector holes and vac lines underneath.


Here is the next step after properly installing the ITBs with a new intake manifold gasket, all bolted up with vac block (yay purple) mounted and fuel rail re-mounted:




Everything is looking good so far, though I was about 15cm short on vac line all in, so cylinder 4 I'll need to look through my boxes of random used bits to see if I have any lying around.

Also not pictured is the AFM delete harness. Instead of making up 2 connectors and bridging pins 1 and 6 on the AFM harness, I bought this: diy-efi.co.uk/product/na6_maf_delete
It's very handy, just plug it in. I've also used the IAT sensor kit from DIY EFI, fitted the 2 wires from the AFM delete into a junior connector, and the IAT sensor plugs straight into it. Very straightforward, no soldering required. I've run this along the firewall and the IAT is sat open air, just opposite the trumpets. Should make for an accurate IAT reading.

Other completed bits:

- Wideband o2 wire connected up to the standard o2 sensor loom, which feeds directly to the Speeduino.
- Wideband grounded with ring terminal with the block of grounded wires in the back corner, below the wiper motor.
- TPS provisionally wired together. The Daytona 600 wiring diagram only gives wire colours for the loom that connects to the TPS connector, and of course the colours on the loom are different for now I've just made an educated guess, and have simply twisted the wires together to test if it will calibrate in Tunerstudio.
- Fuel lines reconnected, fuel rail bolted back down. Annoyingly I bought injector seals for the manifold side, but didn't realise there was an additional top o-ring (I've never touched injectors before). The one I had a look at looked ok to me, so I'm just going to give it a go. If it leaks then I'll just have to order them and wait.
- Blocked off coolant line on intake manifold.
- Cut and blocked off small vac line in intake manifold.
- Blocked off thermostat housing lower coolant line as this ran to the uncut intake manifold. I cut a piece of hose down and threaded a bolt in with sealant, nice tight fit. Chucked a jubilee over the top for good measure.
- Removed the "ST Sign" fuse. Make sure you do this if you have a 1.6 before trying to run the car!


Left to do:

- Splice into a 12v switched feed for wideband, adding a 5a fuse inline.
- Figure out best solution for the throttle cable. I am running the standard Daytona 600 throttle pulley for now, but if this makes the throttle jerky due to it's much smaller size then I will figure out an alternative using the standard MX-5 one.
- Run permanent long data cable for easy access to TunerStudio once the interior is all back together.
- Fire up TunerStudio and configure the Speeduino and calibrate the sensors.
- Rewire TPS once correct wiring order is determined.
- Tuck and tidy remaining wires.


I think that's everything before I can fire it up. Also I will add that I just bought my first ever set of proper wire strippers/crimpers and oh my god this is so much better!

[Bilbo]

May 2, 2020 22:50:39 GMT Zed. said:

May 2, 2020 22:37:48 GMT Bilbo said:

I am also already in that FB ITB group, it's quite good to see quite a lot of people cracking on with ITB builds!

lol.

saw you on there

as to itb's, you should have done them on the last 5........


and kept it


Rich. (I'm using Hayabusa tb's....)

I know I should have! But oh well, live and learn haha.

Think I've seen one other 5 build running them, though don't seem to be the most common choice, not sure why?

[Zed.]

theres a lot of itb fanbois, the toyota 20v / tt manifold being favourite then gsxr 750 with Jenvey being the slightly more expensive option.

okey, I'm using Hayabusa tb's (gsxr1300) but that was based around their bore size

I did look at Triumph Daytona 600 tb's (I have a whole 2004 Daytona ) but they are uncommon in the UK!
theres 2 or 3 diferent tb designs used on Triumph's 4 cylinder bikes - you have the twinned type & my Daytona has seperate as an example.
I bought some 3 cylinder Triumph tb's with the idea of making a set from 2 bikes worth (only to find that theres several diferent types fitted so now I have 3 diferent sets of 3 )
mighty5s.com/post/39728/thread

anyway, watching with intrest, if I do go with speeduino I might have to nick a copy of your maps as startup

Rich.

[scottydugg]

May 2, 2020 22:37:48 GMT Bilbo said:

Apr 30, 2020 10:44:27 GMT scottydugg said:

Because of this thread I've gone and picked up a Speeduino 0.4   no cat so hoping for some flames, great progress btw.

Haha, yes then! Oh you'll get flames if you set it up right. Speaking of which I need to decat mine, but with the Malian I can't bare the thought of it. When this is over I have an RSR manifold at a mate's house, and I'll sort a decat and either a Cobalt or 5Parts system with a custom shotgun style tip. That's the plan anyway.

I've heard a Malian without a cat, please don't! sounded like a mechanical press self destructing.

I'll do some research on into tuning before I look into flames, I'd looked into one of those MAF delete harnesses for a 1.8 but can't see anything. I've got a custom cat-back from a BRSCC car for a 1.6 that decats a 370mm if you want. I need the space back in my garage tbh! Drop me a message if you're interested.

[Bilbo]

May 2, 2020 23:41:31 GMT Zed. said:

theres a lot of itb fanbois, the toyota 20v / tt manifold being favourite then gsxr 750 with Jenvey being the slightly more expensive option.

okey, I'm using Hayabusa tb's (gsxr1300) but that was based around their bore size

I did look at Triumph Daytona 600 tb's (I have a whole 2004 Daytona ) but they are uncommon in the UK!
theres 2 or 3 diferent tb designs used on Triumph's 4 cylinder bikes - you have the twinned type & my Daytona has seperate as an example.
I bought some 3 cylinder Triumph tb's with the idea of making a set from 2 bikes worth (only to find that theres several diferent types fitted so now I have 3 diferent sets of 3 )
mighty5s.com/post/39728/thread

anyway, watching with intrest, if I do go with speeduino I might have to nick a copy of your maps as startup

Rich.

Well if I knew you had a whole Daytona I would have asked what TPS harness colour went to what TPS sensor wire colour haha! Because I spent ages finding a wiring diagram for one, only to find it doesn't even show the TPS sensor side anyway! Figured it out now through the joys of trial and error haha.

Well, at least you have a load of random spares I guess, always handy.

May 4, 2020 11:59:04 GMT scottydugg said:

May 2, 2020 22:37:48 GMT Bilbo said:

Haha, yes then! Oh you'll get flames if you set it up right. Speaking of which I need to decat mine, but with the Malian I can't bare the thought of it. When this is over I have an RSR manifold at a mate's house, and I'll sort a decat and either a Cobalt or 5Parts system with a custom shotgun style tip. That's the plan anyway.

I've heard a Malian without a cat, please don't! sounded like a mechanical press self destructing.

I'll do some research on into tuning before I look into flames, I'd looked into one of those MAF delete harnesses for a 1.8 but can't see anything. I've got a custom cat-back from a BRSCC car for a 1.6 that decats a 370mm if you want. I need the space back in my garage tbh! Drop me a message if you're interested.

Haha, trust me I won't be decatting the Malian, it's bassy enough as it is. Plus exhaust isn't my primary interest for noise anymore   

Yeah man, jump into learning all about it before you start. You pick it up quicker hands-on, but having a working knowledge of where things are and how they work a bit helps a lot.

Not sure there is a harness for a 1.8 MAF delete, but there will be a guide somewhere about what to do, I know they're different to the 1.6 AFM setup.

Oooooh, I certainly could be, depending on the price? 

[Bilbo]

Ok, progress update.

Wideband grounds and 12v live wired in (on the live I have wired in a 5a inline fuse as per the AEM manual, very legit!!!).
Other unused wideband wires cut short and taped up.
Longer data cable plugged into the Speeduino, bolted it all in and put the cover and carpet back in.

Then I fired up TunerStudio and updated to the newest version, used Detect and it found the Speeduino straight away. Set algorithms to TPS based.
Configured the coolant and inlet temp sensors, all good.
Configured the wideband sensor, all good.

For the TPS I had to trial and error the wiring as I didn't know the wire configuration on the Daytona 600 (the wiring diagram I have only shows the loom side wires, which are completely different!). It wouldn't work in any configuration, just a flat ADC count when calibrating the TPS, regardless of throttle input. So I thought TPS must be a dud. Luckily the bodies originally had secondary butterflies with another identical TPS attached. So I fitted this and tried again. Still nothing. The ADC count was rising on its own slowly over time. I had a search online and not much about a floating value out there, apart from a couple of MegaSquirt threads, which mentioned an issue on the ECU side.

I contacted James from DIY EFI and explained the situation, and he mentioned the TPS Input on the board was set to 2M with a jumper, and if this wasn't working then to swap it to 2L. Now I don't do electronics, circuit boards are fairly alien to me on a configuration level. But he put my mind at ease when he said "no, you don't need to solder anything" haha.


I had briefly fired the car up to test that it would run. Issue was idle was very low and I couldn't hold the throttle open as the TPS wasn't connected. It seemed pointless and possibly problematic letting it try and idle so low on an untested tune, so I didn't do it again.

So fast forward a day, out came the carpet, cover, and ECU again. The little jumper is in a tight spot between the main board and the plug connector. A set of little tweezers and I managed to pull it off, and move it along so it bridged pin 2L instead of 2M:




Perfect, the TPS calibrated straight away once this was done. It's being a little sketchy at times though, showing full signal before it ideally should, so I will address this and possibly look at the wiring or swapping to the original TPS again. It's just good to know any issues are on the TPS end now, rather than ECU (more expensive) end haha.

I made a few more adjustments and double checks, turned Idle Control to "None", as I'll be running idle purely through idle bypass valves in the bodies, with no external control. Checked the crank settings and crank timing looked fairly sane, and that my VE table Y axis had figures that represented TPS signal rather than MAP.

Gave it a start up, with limited success. Idle is very very low, and I have no throttle cable sorted just yet, so it was just spluttering and dying. With a little body contortion I managed to reach the key in the ignition, and the throttle pulley just so I could crack it a little bit at the same time, and voilà:



IT'S ALIVE! So pleased to hear even the most minor of bwarps, it fired, it ran, I'm very happy.

A few things to note about the video:

- Throttle is being held open to approximately 1,000-1,050rpm by my hand. Without this it likes to sit at around 400rpm, which is the point the ECU recognises engine cranking, which is not good, and it messes things up.
- At around 0:49 you hear a splutter as I crack the throttle a little more. I was running a (very brief) datalog at the time, and the Acceleration Enrichment was activating, adding fuel to an already very rich mixture! I will set the value for this much higher so that it doesn't trigger so easily during these initial tests.
- It is a bit boggy, AFRs are very very rich right now. We're talking 11ish, touching 12 at times, even spiked down to 10s when Acceleration Enrichment activated, so I will lean this out.
- TPS is being a bit weird, it's working, but the signal is a bit odd and small throttle cracks don't appear to be doing anything to the signal, so I need to look into this as it is vital the TPS is accurate as I'm running in Alpha N (TPS based fuelling).


So there you have it, it runs, sort of!

If anyone is interested, I posted a rundown of parts used on Nutz, will paste it here:

Speeduino ECU - £250
AEM wideband - £169
IAT sensor - £10
AFM delete harness (just makes it easier: £15
Daytona 600 throttle bodies - £44 (Ebay used purchase so price will vary)
Injector seals - £9 ish
Vac hose - £4
Vac block/manifold - £22
Breather Filter - £4.50
Trumpets - £40 (Ebay used purchase off an old GSXR 1100 so price will vary)
Inlet manifold gasket - £9
Various silicone joiners and jubilee clips - around £45 ish
Synchrometer - £40 (for syncing TBs)
JB Weld - £6
Silicone sealant for random bits - £5
Cable for connecting to Speeduino (just a printer cable) - £4
Fan switch (thermostat one. Not needed, but mine was broken) - £11


Total cost £687.50. Not bad!

Note that I have left some other purchases off the list such as: new soldering iron, small tools, hacksaw, solderless nipples, electrical connectors etc. as these are just bits that will be useful for many projects, not just this one.

[Zed.]

May 5, 2020 0:27:38 GMT Bilbo said:

Well if I knew you had a whole Daytona I would have asked what TPS harness colour went to what TPS sensor wire colour haha! Because I spent ages finding a wiring diagram for one, only to find it doesn't even show the TPS sensor side anyway! Figured it out now through the joys of trial and error haha.

Well, at least you have a load of random spares I guess, always handy.

I've also got the Triumph workshop manual....


so...


#12 is the tps.
but its linked to the coolant sensor (for earth?) #15


unsure if this is of ant help though

also, something to consider (& my thoughts not exactly official...) is that motorcycles rarely have small throttle openings - maybe your tps(s) have dirty tracks if not possibly they may have no usable readings except wot etc.  

Rich.