When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
What firmware are you on? You probably want to be on 1.4 or 1.4.1 and nothing older then that.
These are all of my CL idle settings on my 94 with a VVT motor. They should give you some idea of what is needed. The settings were tuned by Braineack around the start of September and worked pretty well. I am not sure if Reverant does things differently on his MS's though. I know by default he ships them using open loop idle, and I don't know if he has any hardware mods to work with AC and such.
Wow! Thanks. My tune looks nothing like that. I'm going to give it a try. I have ver. 1.4. I found all graphs except for idle rpm timing correction. I'll let you know what happens.
I found all the graphs, which I made changes to match Shuiend's. Still idles way too high. It started off, after warmup, at 1250 rpms. After a drive it rose up to 1500. On a good note there was no fluctuations in idle when the ac was turned on. In fact it dropped some, but stayed steady.
I'm convinced that it may be a mechanical problem. I'm going to swap my throttle body with one that I have, in a box. (used) The IAC and TPS are know by me to be good. I'll quadruple check for any vacuum leaks as well.
I changed out the throttle body and was able to get a nice smooth idle at under 900 rpms. It jumps to 1500 with the ac turned but I hope I can fumble my way through it or just accept it. Thanks again, Shuiend!
I met Lars from MK turbo today. He drove all the way to Sebring from S.
. Carolina to get me my setup. The rest of the parts are in the van.Everything looks heavy duty with great welds. As soon as I can scrape up the cash all I need to complete and install is intercooler, BOV and piping. Getting excited.
I ordered an intercooler setup from Lars and I'm expecting it soon. I was wondering if any members could post or lead in the right direction of what and how to cut, concerning the air dam and belly pan. I read Flyin Miata's directions but haven't a clue if that will help me. The routing should be like the pictures in this link. I know I'm noob and it may be obvious when I go to put it together but I thought I would just throw it out there.
I got my intercooler Sat. Starting playing with and realized that I'm not good with puzzles. Lars took the time, through multiple emails to explain exactly what piece went where. Intercooler bolted right up.Even my Nautilus air horn bolted into the OEM hole. Hotside went in with no problem. I ran into clearance problems with BOV leaning on fan motor. 1/4'' away from alternator pulley too. I tried to moved the ac condenser and radiator forward a little. I think I might have hit the rad too hard against the condenser. I saw a couple drops of coolant.Never did get to check if I got any extra clearance. Now I have to find a place that will pressure test it and fix it if it needs it. Expensive ham fisted bonehead move, on my part. In the meantime I'll finish with the stock one.
Took my radiator to get pressure tested and it came back ok. The guy didn't even charge me.I gave him a $20 anyway. I was able to wiggle things around enough that everything fits fine now. I finally got to the next step of my build. I'm going to cut up and try to fit the air dam and under belly pan today. After that my car club wants to do the rest of the turbo install as a club project. If I have to install the turbo with the air dam, underbelly and bumper off just to get the turbo on I'm game for it. I've been waiting a long time to get this far and now that the finish is in sight I'm really anxious.
I've put installing this on our club calendar. Either going to be the 4th or 11th. Anybody wanting to stop by or follow the thread of the install go to: Tech Day: Turbo install (Sat, Mar 4 OR 11 2017))
My turbo is going in on the 11th. I was looking at my tune and in the oveboost fuel cutoff it was real high. 180kpa I figured that to be about 26 psi. Being the noob I am I'm in the belief that with my stock motor I'm looking for around 8 lbs. Should I set my overboost fuel cutoff to 85 kpa. I figured that to be around 12.375 psi. I want to account for boost creep until I get a hold of how the system is going to work. I don't need any broken rods as paper weights. If anybody can look at my tune and give me some advise I would appreciate it. Car has FF 640cc injectors and ms3. Turbo will be MK turbo setup.
Leave over boost at about 170kpa for now. You are thinking about it a bit wrong. Each PSI is about 7kpa. Atmosphere is 100kpa though. So 8 psi would be about 156kpa or so.
I'm all ready, my friends and I are going to install the turbo on Sat. I had a question about where to get a vacuum line. The port where my cruise control is already has the MS and the boost gauge hooked up to it. Is the line in the back, with the one way valve ok to hook up BOV and wastegate actuator? Do I need to get some kind of hose clamp to secure the vacuum fittings so they won't blow off, under boost? I was also wondering if I could put a breather on the pvc, temporarily, until I get a catch can going. I could then use the vacuum port from the pvc nipple to go to the wastegate actuator. That is if I can get the hose and or adapter to fit. Another noob question. Does the oil restrictor from the feed line go on near the turbo? I hope so. There's not a lot of working room near the oil filter.
I would tee the vacuum line somewhere off one of the ports behind the throttle body. While not the most optimal they will work to get you started. I would tee off 2 different places, one for BOV, one for wastegate. I usually just put a zip tie on my vacuum lines to make sure they stay one, but hose clamps also work, Leave the PCV along on the passenger side of the VC.
Oil restrictor goes in the feed fitting on the turbo. You put the restrictor into the fitting, then screw on the line. No need to do anything with it down by the oil feed port on the side of the block.
Got the turbo installed. took a couple of days. Stupid crap like the heater coolant o ring leaked happened but the biggest obstacle was drilling the pan. Wound up having to pull the rack out, after busting off the driver's side tie rod end. When it was all said and done we put the rack in twice and had the steering wheel off 90 degrees both times. I can't do this by myself so i'm having a local mechanic fix it. For a more complete diary of the installation go to my club site. Lots of pics.
The power is amazing. I'm having issues with too much boost though. It's hitting my limit of 10lbs. at somewhere around 5k. I have tried multiple wastegate adjustments. I have the actuator vacuum line on the manifold. I've read some things about having the line just after the turbo will stop overboost. Anybody have any opinions on this?
I've read some things about having the line just after the turbo will stop overboost. Anybody have any opinions on this?
The theory on that is that there's a pressure drop across the intercooler. Supplying the wastegate with a pre-intercooler boost source will apply more pressure to the wastegate than a post-intercooler boost source. It will definitely help stave off some boost creep.
11-22-2016, 05:21 PM
0
