The Tuning Talk Thread - Forced Induction EFI & JZ Tuning.

[thechuckster]

can you feed an output (configured as a wideband output) from your Innovate LC1 into your ECU then capture the full set of log data from it rather than try to merge the two together?

[Disturbed1]

can you feed an output (configured as a wideband output) from your Innovate LC1 into your ECU then capture the full set of log data from it rather than try to merge the two together?

have tried with no success - not only does the ecu read about 2 points higher then the ecu, i also get a fair bit of interference and inaccurate readings (even on the lm1) when hooked up and calibrated as per ems instructions

[Disturbed1]

just hooked up gizzmo knock detector which my mate paid 1200 for so much be half decent...

question is - whats the best way to determine whats considered back knock levels?

just did a 3rd gear log at current map and it regitered approx 12 as it was slowly building boost then read approx 16 as it hit full boost then dropped off to about 14 for the remainer of the pull

did a 10% trim on whole timing map and it bumped the knock levels up buy about 2 so (14-18-16)

i did however notice that the afrs ran a tad 0.5 afr richer so no real acceleration gain.

we have been informed by someone else about what frequency and bandwidth to use - along with sensitivity and at those given levels - to tune to about 40 knock

is there a good way to work out whats safe or not?

the headphones on the knock sensor just makes tickign noises...

[Kyosho]

From what I've heard, the K-MON manual suggests you actually have to induce some knocking on their setup to find out the limits etc...

[thechuckster]

From what I've heard, the K-MON manual suggests you actually have to induce some knocking on their setup to find out the limits etc...

that sounds like a rather destructive method of calibrating a device that you use to prevent destruction?

[DrNick]

Can't you "induce some knocking" by tapping the side of the block with a hammer. I think thats how the service manual details the procedure for testing the factory knock sensors out.

[jeffro ra28]

Yes but where do you determine the acceptable knock threshold when you are calibrating the device by taping the block?

[JZA70 R]

ok so ive just edited the first post with more tuning documents and a link to various ecu manufacturers software downloads!

Because you cant download the FC-Edit software (for powerfc) without registering your FC-Datalogit, ive had to upload it myself. In the same directory ive hosted the update, my current map and a log from my 12.45 run. Ive also uploaded a bunch of other stuff that I use to tune my supra. If you have any questions about any of the files in there just ask. Unfortunately most of it is only relevant to the Power FC or FC-Datalogit...

[Smokey228]

Whats peoples take on the Microtech LT10s..? Are they suitable for a street car?

What are the pros and cons of having one..? I am thinking about swapping my PowerFC for a Microtech for the advantages of Antilag and ease of tuning etc, but am not sure if opting for an open loop ecu over a closed loop ecu is a step backwards or forwards...

Any advice would be great...

Cheers,
Jase

[The Real Roadrunner]

its a step backwards from a "well tuned" PFC (imo) , coldstart is average, no closed loop tuning capability, a microtech/wolf/ems/haltech is great for a track/drag car but i don't rate them for a DD

why do you want/need antilag? if its for drags just get an aftermarket 2step limiter and fit that, if its for better response on the circuit then you have 2 choices A) learn to drive above the boost threshold or B) fit a better sized turbo for the job at hand.

You should only have to tune the car once anway (provided you don't swap and change bits all the time) so i don't see the "ease of tuning" thing coming in to play (but the PFC is easy as piss anyway).

what other info do you need?

cheers
linden

[1JZ-Rolla]

I tend to agree, if what you have now works well, and the only limitation is no antilag, then i'd say stick with it anyhow, as an entry-level aftermarket ECU may only disappoint in the areas of the map other than wide open throttle.

If you wanna leave the line quicker at the drags, fit an auto

[JustenGT8]

Whats peoples take on the Microtech LT10s..? Are they suitable for a street car?

What are the pros and cons of having one..? I am thinking about swapping my PowerFC for a Microtech for the advantages of Antilag and ease of tuning etc, but am not sure if opting for an open loop ecu over a closed loop ecu is a step backwards or forwards...

Any advice would be great...

Cheers,
Jase

That would be a monster step backwards. Just reinforcing Linden and Phil's comments. Apart from the plug and play advantages, the PFC is simply a better engine control device and will deliver better driveability, throttle response etc etc

[JZA70 R]

IMO if you tune the ecu properly, closed loop is a waste of time. why not set your target AFR's lean at cruise and idle regardless? ...I have.

As for antilag, I can see your problem with that as im yet to see someone wire in a Bee*R 2 step rev limiter into a standard toyota powerfc successfully. Ive personally tried and so have others, theres even a thread on here about it. There is some ignition feedback conflict and it doesnt work. Not to say it cant be done but i dont have the electronics know how to get it to work.
There are other aftermarket 2-step rev limiters out there but they are either more expensive, more complicated or harder to come by.

[Kyosho]

IMO if you tune the ecu properly, closed loop is a waste of time. why not set your target AFR's lean at cruise and idle regardless? ...I have.

As for antilag, I can see your problem with that as im yet to see someone wire in a Bee*R 2 step rev limiter into a standard toyota powerfc successfully. Ive personally tried and so have others, theres even a thread on here about it. There is some ignition feedback conflict and it doesnt work. Not to say it cant be done but i dont have the electronics know how to get it to work.
There are other aftermarket 2-step rev limiters out there but they are either more expensive, more complicated or harder to come by.

But the other thing is, why would you go for a microrubbsih when there are much better ECUs out there, that still offer closed loop fuel, with great success, and have things like launch control, anti lag, and traction control, as well as closed loop electronic boost control all built in?

[Jabtronic]

Speaking of comparing ECU's, anybody had any experience with the Link G4 range? I'm a complete newb when it comes to aftermarket ecu's but I am considering going down that path in the future.. when I told my tuner that I was considering using a Microtech he told me they're a waste of money and wouldn't be suitable for my application (drift car that gets daily driven occasionally). He recons the Link is probably best bang to buck out there at the moment, was telling me about the new Wolf v500 and all it's features but they're a bit too pricey for me.