Search found 123 matches

by cmj
Fri Jul 01, 2016 5:33 am
Forum: KA-T Chat
Topic: KA24DET Question. CX - ISR debate
Replies: 4
Views: 1269

Re: KA24DET Question. CX - ISR debate

My only experience with CX is my stainless top mount manifold. I bought the beefed up version ($370ish?). When I pulled it last year I noticed that the runners were positioned about 3/8" off of center of the exhaust ports. This upset me quite a bit because I specifically purchased their better quali...
by cmj
Fri Jun 24, 2016 7:32 am
Forum: KA-T Tech. Basic
Topic: Melted Brake Fluid Reservoir.
Replies: 13
Views: 2198

Re: Melted Brake Fluid Reservoir.

I wrapped the reservoir with DEI 2" reflective tape and use a turbo blanket. Solved all issues.
by cmj
Mon Jun 06, 2016 5:24 am
Forum: KA-T Picture Threads
Topic: 2nd time around
Replies: 164
Views: 20810

Re: 2nd time around

adamky wrote:I notice your intake plenum doesn't have the Xcessive logo in it. Did you grind it off or fill it in or..?? And do you run without an air filter?
I know there was a China rep floating around for a while. It could possibly be this? If so... Review? :| :P
by cmj
Wed Jun 01, 2016 12:04 pm
Forum: Dyno Results
Topic: Virtual Dyno Results
Replies: 33
Views: 19259

Re: Virtual Dyno Results

They both looked a little rich from 5800-6700, so you need to lean it out there. With E85, you can get away with a lot more timing than what you are currently running. Start bumping timing 2 degrees at a time and then do another log and run it through Virtual Dyno. Keep doing this and once you stop...
by cmj
Wed Jun 01, 2016 5:28 am
Forum: Dyno Results
Topic: Virtual Dyno Results
Replies: 33
Views: 19259

Re: Virtual Dyno Results

I'm not familiar with MS or Tunerstudio, but I downloaded it (and Mega Log Viewer) and looked at the moderate 93 and E85 maps. Am I right that total timing was around 19* through both runs in full boost? I know you said 18* so maybe I'm looking at it wrong. Yeah that's probably about right. Do you ...
by cmj
Tue May 31, 2016 10:35 am
Forum: Dyno Results
Topic: Virtual Dyno Results
Replies: 33
Views: 19259

Re: Virtual Dyno Results

You gained that much power switching to ethanol with no increase in timing? Yes... Maybe? Here was my procedure. Make 3 passes at current ignition map on 93 octane.. Choose average pass. Burn new ignition table.. Make 3 passes 93 octane... Choose average pass. Drain fuel (~5 gallons) and fill with ...
by cmj
Tue May 31, 2016 7:06 am
Forum: Dyno Results
Topic: Virtual Dyno Results
Replies: 33
Views: 19259

Re: Virtual Dyno Results

Good data...keep it up...Did you increase timing after MBT as well? As rpm's increase, volumetric efficiency decreases and you can increase timing to keep cylinder pressures up for better power. After I install the new fuel setup I'm going to put it on a dyno. My goal is to tune for MBT on an inert...
by cmj
Tue May 31, 2016 6:06 am
Forum: Dyno Results
Topic: Virtual Dyno Results
Replies: 33
Views: 19259

Re: Virtual Dyno Results

Back at it again. I've grown tired of the super conservative timing map so I decided to redo it. 9:1 C/R Turboholic cams Precision 5431 turbo (.63 housing) 15PSI @ 18* Walbro 255lph Modified Z32TT injectors (~740CC?) Red = Conservative timing (14* @ 15psi) on 93..... 237hp/273tq Blue = New timing (1...
by cmj
Fri May 27, 2016 8:15 am
Forum: KA-T Tech. Advanced
Topic: Coil on Plug Conversion Questions
Replies: 5
Views: 1291

Re: Coil on Plug Conversion Questions

Colorado S14 wrote:Yea, looking at it now, I am thinking the M&W CDI is the way to go at the moment.
I really like that setup.. I just wish it was a couple hundred cheaper!
by cmj
Fri May 27, 2016 7:56 am
Forum: ECU Tuning
Topic: Need help with timing under the curve/ whole timing map
Replies: 1
Views: 888

Re: Need help with timing under the curve/ whole timing map

Your ignition map looks very similar to mine and there is definitely more power in timing. You are now at a fulcrum of deciding to push timing without any real feedback or stay safe. I would suggest adding a knock module to your computer or rigging up some det cans. You can do this on the street if ...
by cmj
Wed Mar 16, 2016 8:12 am
Forum: ECU Tuning
Topic: Check my tune / logs
Replies: 4
Views: 1061

Re: Check my tune / logs

That's probably correct. Wasn't doing full pulls. Thanks for taking the time to check it out!
by cmj
Wed Mar 16, 2016 7:15 am
Forum: ECU Tuning
Topic: Check my tune / logs
Replies: 4
Views: 1061

Re: Check my tune / logs

I'm on 93. I believe I'm running between .75/1 deg/psi. I think you're post might have been backwards with corn. That car absolutely rips on 11-12 psi right now. Feels faster than stock motor on 15 (probably due to cams and real turbo) I just wanted someone to go through the recent logs and tell me ...
by cmj
Tue Mar 15, 2016 5:38 pm
Forum: KA-T Picture Threads
Topic: CMJ S13 (Lots of pics!)
Replies: 47
Views: 14543

Re: CMJ S13 (Lots of pics!)

Lots of updates.. Not really going to write anything up unless someone asks about a pic. I finished the car.. Drifted some.. then blew it up at a demo (fan fuse blew.. went out for a few more laps cause i'm stupid).. I took the motor apart and everything looked great as far as detonation/piston ring...
by cmj
Tue Mar 15, 2016 5:09 pm
Forum: ECU Tuning
Topic: Check my tune / logs
Replies: 4
Views: 1061

Check my tune / logs

Car has been down for quite a while... I winged the timing map and am using live tuning for fuel. Attachedis my project folder.. Can you guys please comment on my timing table and take a look at the logs? (I'm out of town for work and don't have MegaLogViewer licenced on this computer). Looking to g...
by cmj
Sat Aug 01, 2015 11:58 am
Forum: DIYAutoTune
Topic: Please confirm: LS Coil Wiring
Replies: 2
Views: 1782

Re: Please confirm: LS Coil Wiring

All is good. Harness worked perfect and MS3x is RAD! Thanks for the reply ^^
by cmj
Fri Jul 31, 2015 3:38 pm
Forum: DIYAutoTune
Topic: Please confirm: LS Coil Wiring
Replies: 2
Views: 1782

Please confirm: LS Coil Wiring

I decided to make a new harness and I've finished it. As I'm going through it with a meter I'm second guessing myself. I wired the coil logic ground to the MS signal ground. (Same as TPS, CLT, and IAT) Please tell me this is correct as I've loomed the whole harness like an idiot (before testing it 1...
by cmj
Fri Jun 26, 2015 5:34 am
Forum: KA-T Chat
Topic: Oil Squirters.
Replies: 2
Views: 970

Re: Oil Squirters.

by cmj
Wed May 13, 2015 1:17 pm
Forum: ECU Tuning
Topic: AEM 2 Tuners?
Replies: 5
Views: 1486

Re: AEM 2 Tuners?

Have it tuned at MA.. You won't regret it!
by cmj
Wed Apr 29, 2015 3:28 pm
Forum: ECU Tuning
Topic: MS1/Extra Nerds! kPa Table Switching Circuit
Replies: 2
Views: 1126

Re: MS1/Extra Nerds! kPa Table Switching Circuit

Yeah, this setup worked. I would suggest using a 10-turn 10k potentiometer and testing it on the bench first. It took me a while to get the correct voltage/kpa that I wanted the table to switch at. Also remember that the MAP sensor is not actually linear so although your calculations will get you cl...
by cmj
Tue Apr 28, 2015 5:58 pm
Forum: ECU Tuning
Topic: MegaSquirt/Tuner Studio Tuning Theories/Concepts
Replies: 53
Views: 15019

Re: MegaSquirt/Tuner Studio Tuning Theories/Concepts

https://lh3.googleusercontent.com/-nyVEcb6OyzM/VUAr4eBMBGI/AAAAAAAAF6g/moVJgJuZ5gw/s800/Screen%2520Shot%25202015-04-28%2520at%25208.46.22%2520PM.png Here is what I have come up with.. I used the values from RS-Enthalpy's stock ignition map, and did some work from ~3000 rpm @ 100 kpa and up. I'm loo...
by cmj
Tue Apr 28, 2015 1:41 pm
Forum: ECU Tuning
Topic: MegaSquirt/Tuner Studio Tuning Theories/Concepts
Replies: 53
Views: 15019

Re: MegaSquirt/Tuner Studio Tuning Theories/Concepts

Supakat, Im using your suggestions to create a timing map. You state that at 100 kPa and 3000 rpm that timing should be at ~25* BTDC.. The .msq file you provided does not show this.

Clarification?

Thanks for the resource, lots of good reading!
by cmj
Thu Jun 12, 2014 8:48 am
Forum: KA-T Chat
Topic: DIY 240SX Shifter Springs
Replies: 2
Views: 1255

Re: DIY 240SX Shifter Springs

Excellent! Never even thought of this.
by cmj
Sun May 18, 2014 7:24 pm
Forum: Motorsports and Meets
Topic: No Star Bash 6 28-29
Replies: 3
Views: 1612

Re: No Star Bash 6 28-29

I've been around drift Indy for years. I'm local, I'll be there.
by cmj
Sat May 17, 2014 5:44 am
Forum: ECU Tuning
Topic: megasquirt accel enrichment settings?
Replies: 5
Views: 1019

Re: megasquirt accel enrichment settings?

In for this
by cmj
Fri Apr 25, 2014 8:35 am
Forum: Road Racing/Autocross/Drifting
Topic: Drifting High Compression Turbo KA24DE
Replies: 8
Views: 9133

Re: Drifting High Compression Turbo KA24DE

I talked to a pretty reputable engine builder, and his tuner about high compression and corn. I was advised that even running e85, they noticed a pretty even tradeoff of heat between high compression / low boost / e85, and lower compression / higher boost / conventional gasoline. They recommended ru...
by cmj
Sat Apr 05, 2014 10:26 pm
Forum: KA-T Picture Threads
Topic: CMJ S13 (Lots of pics!)
Replies: 47
Views: 14543

Re: CMJ S13 (Update 04/06)

I picked up a new Precision 5431 turbo charger with a 0.63 rear housing. I'm expecting around 360hp at 1 bar. I only get one day a week to work on the car, but here is some progress. Could you do me a huge favour whenever you have time and post a few more pics of the intercooler and piping? Looking ...
by cmj
Fri Mar 28, 2014 1:59 pm
Forum: KA-T Tech. Advanced
Topic: Suggestions / Math of milling for compression?
Replies: 5
Views: 908

Re: Suggestions / Math of milling for compression?

Good looking out!! I'll hop on this in the next week or so. This is exactly what I was looking for.
by cmj
Tue Mar 25, 2014 8:02 pm
Forum: KA-T Chat
Topic: anyone run the starter relay bypass?
Replies: 10
Views: 1047

Re: anyone run the starter relay bypass?

So I will be fine running my 75A worth of fusebox through the ignition switch? Your reply is somewhat vague.. Does the ignition barrel make the relay, or supply the relay?