Split Sec Maps used with PC Pro

[FormerDatsun510Man]

I wanted to know what Split Sec maps people are using that have the PC Pro? State what kit you are running, pulley size and other related info (whether BTB or STB, air/air IC, etc) and model year Miata. Also the settings you are using on the PC Pro. I thought this would help people tuning their setups.

Bill

[Kyp J]

I would like to be able to answer, but I tried today to modify my map and discovered (as I thought) I have no idea what to do. I managed to look at the maps read from the SS's ECU and changed some of the values in the upper end (the map came from Tom's 05 that he emailed to me) then couldn't get it to write it back to the ECU. I also couldn't find the physical write up to determine which map I am using (A or B). They are different maps and it would make a difference for what I was trying to accomplish. My injector is using the solid brown wire.

I am lean just a bit before rev limiter, maybe around 6K. I am at 14 lbs at rev limit.

[chuckerants]

I would like to be able to answer, but I tried today to modify my map and discovered (as I thought) I have no idea what to do. I managed to look at the maps read from the SS's ECU and changed some of the values in the upper end (the map came from Tom's 05 that he emailed to me) then couldn't get it to write it back to the ECU. I also couldn't find the physical write up to determine which map I am using (A or B). They are different maps and it would make a difference for what I was trying to accomplish. My injector is using the solid brown wire.

I am lean just a bit before rev limiter, maybe around 6K. I am at 14 lbs at rev limit.

The solid brown wire IIRC is MAP B. But unless you have something else like water injection that the SS is controlling, why not just use the same MAP for both A and B?

As for what MAP I'm using, I'm using a MAP that Tom provided for me while I was a test monkey. I'm also now using the new software update and have had to do nothing to my PC Pro yet.

[Tom @ Fast Forward]

If you are using the Red and Tan wires, that is Map A. If you are using the Red and Tan/Black wires, that is Map B. I believe this is Chuck's current Map.

http://www.FastForwardSuperchargers.com/Hotside/Chuck4.mdb

[cmetzner]

I am still getting things sorted out but here you go:

I have a 115 pulley with the stock throttle body no IC, water injection instead (which I'm beginning to think is pretty useless re ping). Two 330 injectors in the DTB.

I use Tom's map labelled "Chuck3". I have one injector connected.

Tom, it appears that "Chuck4" is about doubled the values of "Chuck3". I wonder, does this mean that I should just plug in both injectors and now chuck3 is equal to chuck4. OR I could stop being lazy and change the map.

I only have mode 4 on the Pro set to 4/5. I can't remember the color combo but the setting is the 4 click on the mode button.

Sorry to be so technical.

[Tom @ Fast Forward]

There are several "what if's" that effect the settings. For example, is your SS connected to the crank sensor or the cam sensor? Connecting to the crank sensor will add double the fuel as it pulses twice as often. Chuck has a 480cc injector and you have a 330cc.

It is easier to say that the best way to set it up is to adjust the PC-Pro for 13:1 with the ss disconnected and then add fuel with the SS for 12:1. 1 point of A/F with the SS is a good amount for cooling.

Mode 4 is yellow/blue.

[chuckerants]

BTW, just a day or so before getting the latest software update from Tom, I managed to erase my modified SS MAP accidentally. Luckily, I had an old "Chuck" MAP and used that.

After the software update, Tom and I took a drive in my car with Tom monitoring the AFR on his laptop. The AFR was IIRC right at 12.5 (?) through most of the WOT run. Tom suggested I increase the SS to get the AFR to around 11.5~12.0, but it runs so strong with no pinging, I've been running my car just as is - no adjustments to the PC Pro or the SS 5th injector.

[Serpico]

I'm using a map that Tom posted a few weeks ago. I think it is from his '99.
It starts adding fuel at 3.5psi.

Green-0
Yellow-2
Red-0
Y/B-8
R/B-8

I did not have to change any settings when I switched from the 110mm to the 115mm pulley.

[FormerDatsun510Man]

Technical is good :). Guys, it would also help if you state what size/number of extra injectors you are running the Map with. Also, the settings you are using for the PC Pro. My purpose for this thread is so that we will have a resource for helping everyone tune their setup.

Thanks so much for the information so far, this has already been very helpful.

Bill

[cmetzner]

Tom -

Just as a follow up. My mileage is back to where it has always been. That is, about 20mpg. On my car, with my typical driving, increasing any of the first 3 modes, really shot my gas mileage by 3mpg.

Now, I only have mode 4 turned up to 4/5 and the car runs fine. A little ping on tip in, this with pulling 6* of timing through the SS. But I will have this tuned out throuh Gearheads Garage.

[Tom @ Fast Forward]

Chuck M,

Are you saying your mileage was 23 and is now 20 with the PC-Pro or are you saying it was 17 and now is 20? There is no reason it should drop with the PC-Pro. I get 25-28 on my 99 and I beat it as often as I can. My 05 runs 28 when I drive aggressively and 31 when I on drive hard a little.

When you get Steve to tune it, have him start with a compression and leak down check hot.

[FormerDatsun510Man]

Mileage for me is typically 18-20mpg city and 25-27mpg highway. That is normal driving... really :). If I am beating on it.... oh about 10-15mpg tops :).

Bill

[Tom @ Fast Forward]

Combined city/highway/fun on my 99 is 25/26 and highway at 80 is 27/28 If I am on the back roads at 65, it is an easy 28.

20 sounds like time for a compression and leak down check? As compression goes to pot, so does gas mileage.

[cmetzner]

Tom - my gas mileage has always been low compared to others' stories.

Pre SC - around town only 20mpg; combined 22mpg; freeway only 24.

Post SC, pre Pro - 19; 22; 24

Post SC, with Pro - 17; 20; 24

I reset the Pro so that the first 3 modes are 0 and mode 4 is 5 my mileage went back to 20; 22; 24.

Had a compression check a year ago and the guy said it was 210 all the way across. Never burns oil.

[Tom @ Fast Forward]

Hmm. Not sure why your mileage should be so low, even when it was stock. You must drive like Chuck and Ari? :) I think an on/off gas pedal would be fine for those two.

I would be wary of a mechanic who tested a used engine and found 210 across the board. But, it probably has good compression if he had high numbers.

Have you ever checked A/F with a tailpipe sniffer on a dyno at idle and cruise? I just started a new thread in the superchargers forum about mileage. Maybe I just drive to sanely? My wife doesn't seem to think so. :angel:

[cmetzner]

Tom -

Quite the opposite. Everyone in the family complains that I drive so slow. I have never had a sniffer up my tailpipe.

[Bo0osted]

Hi guys,

I'm finally getting around to switching to the PC-Pro and was curious if there is a recommended map to use for proper e-cooling. I believe I have read on this forum that it's best to set up the e-cool for proper cooling and then pull back fueling with the PC-Pro until you get the proper AFR.

Is this correct?

[Tom @ Fast Forward]

Ari, It will be a couple hours before I get back to my computer. He also needs the R4 software. If you see this before I get home, can you post that file again? Thanks.

[99mx5]

I cant upload it. If anyone needs the R4 software, PM me with your email address.

[Tom @ Fast Forward]

It's 24MB. A bit large for email. :) I have it up on the web now. It is located at http://www.FastForwardSuperchargers.com/superchargers/setup.exe

[Bo0osted]

Thanks for providing the link. I'll install it tomorrow and try to load in a new map. Question is though... what's the recommended map now or has everyone switched to using the PC-Pro to control e-cool?

[Bo0osted]

Ok... so some searching on this site has lead to tom's old map from his 99. I looked at the map and it appears that eCool is set to activate at 3.5 psi and the amount of fuel added is constant from that point on. It does go up slightly but the curve stays pretty flat. Does this sound like the right behavior for those of you with a PC-Pro controling the eCool?

[Tom @ Fast Forward]

Chip has a much newer map that is better. Maybe he will post it.

[Kyp J]

I may be the only one with a lean spot around 3k ( 2.5 K as observed in the SS software while it is runing. For some reason the RPM indicator is showing approximately 500 Revs less and also it only appears to react in 500 revs increments). I increased the e cool from 2.5K to 3K and in an appropriate boost range by about 3 millisec.s and it evened out my a/f in that area and got rid of the obvious drop in power under a WOT run. It would go from 12.1 to 13 or 14 briefly until I did this.

[Bo0osted]

Hi KypeJ!

Would you mind posting your SS map, PC-Pro settings, and eCool injector size? I'm basically looking for a good starting point before I get it fine tuned.

Thanks!

P.S. I'm not sure what model of SS box you have but mine came with a knob for timing retard. Therefore, one map does retarding and the other does fuel. Do you know which map is for fuel and which is for timing? If we have different models, that's cool. I can always find out by trial and error.

[Kyp J]

Hi KypeJ!

Would you mind posting your SS map, PC-Pro settings, and eCool injector size? I'm basically looking for a good starting point before I get it fine tuned.

Thanks!

P.S. I'm not sure what model of SS box you have but mine came with a knob for timing retard. Therefore, one map does retarding and the other does fuel. Do you know which map is for fuel and which is for timing? If we have different models, that's cool. I can always find out by trial and error.

You obviously think I know way more than I do. I can barely get the SS software to connect after fiddling around for awhile. The map that is in it now was put in by Tom when I was at his Memorial day dyno get together. He may have just gave it a starting and ending number and had it spread it out (I forget the proper terms) I did the added pulse time later as I had done it to whatever pre existing map for that lean spot. My SS controller doesn't sound the same as yours. It has 2 maps, four connectors for injectors and no knobs.

The injector was what ever Tom sold me when I had the manifold modified by a local machine shop with Tom's specs. I have no idea what size it is.

As far as my PC Pro settings are concerned, they were fiddled with by Tom as well when we were on the dyno and I think he changed something in the internal programming at the same time and I have since added or subtracted in a few spots since. I don't think my settings should be used by anyone else necessarily since I have an abnormal car. It is a 2001 with VVT but it has 9 to 1 pistons, ported head and a 115mm crank pulley.

It is currently in repair mode for a leaking clutch secondary (I think) and I am occupied in other duties (I am retired and forced to do slave labor for my wife).

Later, if you think it is valid, I will try to find the file in my Lap top that we used to load the map and either give you the basic start and end or send it. I don't have much confidence in being able to send it since the Zip program I have keeps telling me it is expired or something. Maybe I am thinking of the PC Pro control program that needs to be zipped. Email is a challenge for me sometimes.

[Bo0osted]

It is currently in repair mode for a leaking clutch secondary (I think) and I am occupied in other duties (I am retired and forced to do slave labor for my wife).


For some reason, that really made me laugh.

Thanks for trying to help. Hopefully someone else will chime in with the answers I'm looking for

[Bo0osted]

btw... you aren't Chip are you?

[Kyp J]

btw... you aren't Chip are you?

Who...me?

No, even though I have been called that along with many other things when people misunderstand my name. I don't know who Chip is. Tom knows all his customers by their real names and throws them out like we know who they are. Sometimes I can figure them out if the posts are consecutive.

[Dr Evol]

I sent my latest map to Tom a few days ago. He will post it when he gets back from St. Louis.

This map is a work in progress. I am still working on the tach connection to my wideband. From 2 - 6K rpms I run around 12.5 - 11 AFR. The upper rpms (6 - 7K) are very rich - 10.25 - 11AFR. My Mitsu Evo ran even richer in stock form so I am not too worried about it. I will get the upper rpms leaned out to around 11.25 on my next dyno excursion or when I finally get my tach hooked up to the wideband.

I have the 115 pulley and hit peak boost of 13 - 13.5 pounds at 7,200 rpms. I run the JR BTC as well. My SS Engine Settings are set for an 8 cylinder/4 stroke to be able to run off the crank.

Chip

[Bo0osted]

Chip! :D

Are you using the PC-Pro to control the main injectors and the SS to control the eCool? If so, what are your PC-Pro settings? I only ask because I didn't know that setting the engine settings to 8 cylinder/4 stroke makes a difference.

BTW: I'm running I believe the 105 that makes ~10psi

I sent my latest map to Tom a few days ago. He will post it when he gets back from St. Louis.

This map is a work in progress. I am still working on the tach connection to my wideband. From 2 - 6K rpms I run around 12.5 - 11 AFR. The upper rpms (6 - 7K) are very rich - 10.25 - 11AFR. My Mitsu Evo ran even richer in stock form so I am not too worried about it. I will get the upper rpms leaned out to around 11.25 on my next dyno excursion or when I finally get my tach hooked up to the wideband.

I have the 115 pulley and hit peak boost of 13 - 13.5 pounds at 7,200 rpms. I run the JR BTC as well. My SS Engine Settings are set for an 8 cylinder/4 stroke to be able to run off the crank.

Chip

[Bo0osted]

For those interested, I spoke to Chip and his PC-Pro settings are 5,2.5,1,2,4. He prefers to have more fuel go in via the 5th injector at higher rpms which is why his red setting is at 1.

[Tom @ Fast Forward]

Well, it took awhile but I got it. last week I had Chip's file on my PDA but no way to upload it from my PDA to here. This week I got it on my computer in Outlook but Outlook decided that 'mdb' files were a threat so it wouldn't let me have access to the file. Today I asked Chip to zip it and resend and even that couldn't get it past Outlook. Today I did a web search and found a discussion on how to make Outlook accept file extensions and now have the mdb file. You can get it here :

http://www.FastForwardSuperchargers.com/Chip.mdb

If your SS doesn't show the proper RPM when you rev the engine, you may need to modify your engine settings in the SS software. Chip used the crank sensor and needed to tell the SS that he had an 8 cylinder to correct for getting twice as many pulses as needed for a 4 cylinder.

[Kyp J]

If your SS doesn't show the proper RPM when you rev the engine, you may need to modify your engine settings in the SS software. Chip used the crank sensor and needed to tell the SS that he had an 8 cylinder to correct for getting twice as many pulses as needed for a 4 cylinder.

My SS being low only 500 RPMs (More or less) wouldn't be because of that would it?

I assumed my OEM Tach might be a bit off and the resolution of the SS display while it is running showing the map with the red cell (does that sound right? It has been a long time since I looked at it.) may be a tad rough. My lean spot appears to happen about 3000 or maybe a bit more on the tach, but I have to put changes into the SS map covering 2500-3000 or it doesn't change the problem. I increased the times in the cells in a boost range of 6-9 psi. The engine seems to go through that spread somewhere and smooths out the A/F to closer to the rest of the numbers seen.

We saw the hump in the A/F on the dyno on Mem. day weekend. Plus I knew it was there anyway. The dyno was set for MPH instead of RPM so it wasn't comparable to my results.

[Tom @ Fast Forward]

No. 500 RPM off is not from that.

[Bo0osted]

Chip used the crank sensor and needed to tell the SS that he had an 8 cylinder to correct for getting twice as many pulses as needed for a 4 cylinder.

Is there a simple way to check if you hooked it up to the crank sensor? I'd prefer my SS to be set up to the crank sensor but it's been so long that I can't remember which I set it up to.

[Tom @ Fast Forward]

I just updated the 99-00 and 01-05 pinouts in the instructions forum to show the crand and cam connections. I don't have the pin numbers for the 94-95 and 96-97 at hand. If somebody has them for me I will update those pinouts as well.

[Bo0osted]

I just updated the 99-00 and 01-05 pinouts in the instructions forum to show the crand and cam connections. I don't have the pin numbers for the 94-95 and 96-97 at hand. If somebody has them for me I will update those pinouts as well.

Hi Tom,

Which instruction is it in? The PC-Pro instructions or other instructions? I didn't see an instruction post for the SS box.

[Tom @ Fast Forward]

They are in the 'Instructions Forum' here:

http://www.fastforwardsuperchargers.com/forum/forumdisplay.php?f=22

ECU Pinouts

[Kyp J]

This would fall into the classification of me not minding my own business but my 2 cents and knowledge of my own limitations makes me think changing the setup to require setting the SS control to 8 cylinders might prove problematic at some later date.

I would forget (unless I made a big note and glued it to the steering wheel) that I had changed the pickup and months or years later, wonder why it wasn't set to 4 cyl and change it back. I had it this way by accident (I think) and caused me some confusion. It turns out the process of reading out the map to the computer changes that setting (if different) even tho it had been set prior to the read.

Is there a compelling reason to use the crank sensor?

[Bo0osted]

Is there a compelling reason to use the crank sensor?

From my understanding, using the crank sensor gives you twice as many pulses as ______, therefore allowing you to shoot twice as many smaller squirts of gas for ecool.

[Dr Evol]

That is correct, twice the pulses per rotation.

[Serpico]

Since I can never leave well enough alone, I decided to try Chip's fifth injector map (which is only slightly richer than my current map) but for the life of me I could not get the SplitSec software to connect to the ECU. I tried all ports (COM & USB and then resorted to uninstalling the software for the SplitSec as well as the USB-Serial cable....no luck....no nothing.....

I finally got fed up and decided to take a break and get a frosty beverage.

Well, after my break I went back to head scratching and discovered I had been opening the R4 demo program rather than the actual R4 program...insert dope slap here....and presto....duh.

So, next time there's a snafu.... Take A Break!

[Tom @ Fast Forward]

Are we to conclude that you consider beer to be brain food? :)

Since I can never leave well enough alone, I decided to try Chip's fifth injector map (which is only slightly richer than my current map) but for the life of me I could not get the SplitSec software to connect to the ECU. I tried all ports (COM & USB and then resorted to uninstalling the software for the SplitSec as well as the USB-Serial cable....no luck....no nothing.....

I finally got fed up and decided to take a break and get a frosty beverage.

Well, after my break I went back to head scratching and discovered I had been opening the R4 demo program rather than the actual R4 program...insert dope slap here....and presto....duh.

So, next time there's a snafu.... Take A Break!

[Serpico]

only good beer....

[Dr Evol]

My personal favorite!

[Bo0osted]

I have my SS box set up now and am going to start tuning it. I wanted to note something that I noticed when using the 8 cylinder setting that Dr. Evol uses. When your settings has your engine as an 8 cylinder, the split second reads the RPMs at half of what ur actual RPM is. At least that's what I'm seeing in the recording option. Knowing this, I've edited my maps for this.

In other words, the 1k setting on your fuel map affects 2k RPM. Similarly, 3k setting on the fuel map affects 6k RPM. Therefore, make sure you have ur map set up to use the 8 cylinder setting.

I currently have it adding fuel starting at 1k RPM (2k RPM actual) and 3.5 PSI.

[Bo0osted]

BTW: I checked my SS installation instructions and I also spliced the crank wire when setting up the SS Box.

[99mx5]

Hmmm beer... I just brewed my first batch in a looong time :)