Using Holden202's $12P Methanol Tune In A V6

[v6bucket]

The engine will run ok with 6 injectors, we found that by using an extra injector before the blower, it keeps the blower cool & helps "seal" it, we also picked up 4 or 5 hp. We also found that it's making 24psi of boost, which isn't bad for a std ebay blower.

[VL400]

How did you measure 24psi of boost with the 2bar MAP sensor? If your seeing 165kPa thats actually around 9psi of boost.

As holden202 said, TP logging would be very handy to get working

[v6bucket]

That's 24psi measured with an external gauge from the Dyno Dynamics computer. Unfortunately due to lack of hours in the day, I haven't had a chance to work out how to log with TP5, it's on the "to do" list.
From the info that I have, the "best power for methanol is 4.8afr" with a rich limit of 3.84afr.

[Holden202T]

the bigest problem i see with the extra injector is you really can't regulate it very well so while it might be a good idea to have one before the blower (especially with methanols cooling effects) it probably really needs to be connected to a fuel system that can maintain the right pressure all the time and also have some way of activating the injector so you can control it, like a flex table or something like that.

one thing that might be an easy option is to have the normal injector wiring run it so it will be spraying in time with the other injectors but maybe put a relay in the wiring so it can be activated and de-activated via the flex table .... so that way you can specify at what tps or map or rpm areas it activates and then it will be controlled by the normal on off of the injectors.

i too am pretty suprised at 24lb from an SC14 blower ..... from everything i've heard they struggle to make double figures normally .... that said i don't know if you have a different pulley on it or what.

BUT if that is in fact what your seeing then you really need a 3 bar map sensor and you really need to get TP5 logging working .....

if you want assistance, get it happening and take screen shots of errors or post up the results here, between everyone here it shouldn't be too hard to get working.

[v6bucket]

I can't remember what size the pulley is maybe 100mm, I'll measure it tomorrow, but it's definitely not std sc14.
Why a 3 bar sensor? 24psi=1.65bar
I've tried to talk him out of the extra injector after we seen that it will run rich enough with the 6 injectors, but he seems adamant that it has to stay, I'll have to try another approach
Holden202 do you have an LM1 hooked up to your 808? if so how is the best way to connect?

[charlay86]

It's because it is an absolute pressure sensor, if you are making 1.65bar above atmospheric pressure (~1bar) then you have an absolute pressure of approx. 2.65bar, so you would need a 3 bar sensor.
An NA vehicle only needs a 1 bar sensor as it is only reading manifold vacuum ie. <= atmospheric pressure.

Perhaps you can convince him that water injection is a better idea than the extra injector?
Water has a much higher specific heat than methanol so should be able to cool the blower to a greater extent.

[Holden202T]

Holden202 do you have an LM1 hooked up to your 808? if so how is the best way to connect?

i have an LC1 which i believe is different to yours, but from what i can see of the LM1 you have an analog output plug on the bottom of it and that has a cable to plug into it then theres a few wires on it .... you need to connect one of these wires to D8 on the 808 .... setup the analog output settings on the LM1 to suit the output you used and your done, you should then be able to see wideband info in the logging screen once you get TP5 logging ....

[v6bucket]

I'll have a look at connecting the LM1 tomorrow. In the mean time, I'm trying to work out how to lo with TP5. What I've done is used the BLCD bin from the OSE 12P v110, so that I can connect it to my sons VP to sort out what I'm doing wrong. I burnt the bin using an offset of 8000, which is what I used for the 2bar bin & it worked ok. I'm using 27SF512 chips. When I turn the ign. on the fan continually & the cel is on, which I think indicates that the bin has an error. Can someone tell me what I'm doing wrong?

[Holden202T]

whatever you did to get the dato working with the tune should be the same for the VP (other than using a different file to burn)

if your getting the fans on the cel like you said then theres something amiss in the burn process....

i know the SF chips are a bit funky to erase so maybe you did something wrong there!

either way .... you can use the tune that works on the dato in the vp, just don't start it .... turn the ignition on and you should be able to test logging from there.... if all the gauges start doing stuff then you know its working and you can use TPS to see if it moves the dash gauge the same as the throttle application you apply to the pedal ....

[v6bucket]

OK, it's easy to log with TP5, when you haven't got 2 people behind you asking 10 questions at once.
Next question. How do I add TPS to the dash? In the drop down box it has "Complete Dash" as the only choice. It has RPM, Map, Spark Advance, Target AFR, Wide-band, Knock count.