Any more updates to share?

Hello allI have been installing a MS2 V3.57 full standalone on my 420a eclipse for about a month now. Everything is going great so far. Most of all the sensors are hooked up besides injectors and ignition coil. Hooked up the crank sensor today to try and get an rpm signal while cranking the...

Alright guys I have my pre-built megasquirt 2 v3.57 in hand from DIYAUTOTUNE. I have attached the quote sheet they gave me listing some of the internal mods that were done to the unit. They asked a bunch of questions before hand to come up with the right mods. I understand the 420a needs two...

How is this done exactly, any regulator in specific? Thanks Paul

Perfect, now that you say it I do remember a white output wire coming from the gauge that I didn't use. Well so far it all sounds pretty straight forward, I think my next steps are really just to order the unit and let them know what platform its for in case they need to do any internal mods...

Thanks for the info guys, I currently have an AEM wideband gauge so I'm guessing the signal wire from the sensor itself will have to be spliced into the megasquirt along with the gauge itself? What about the factory narrowband sensor?

I have been running a fmu/stock ecu turbo setup for years now and I am ready for megasquirt. Tired of all the bugs/unreliability and really just want to make the jump from one to the other.I'm new to the whole megasquirt/tuning deal but have been doing alot of research the past couple weeks...

I see what you're saying, if I remove one cam gear all the tension will be on one cam. However it's also risky taking the tensioner off because the belt may fall off the crankshaft pulley. I'll have to try it and see what happens. I've seen a video of a guy with an evo who changed his cams...

Hello all,I know this has been discussed alot in the 4g63 world but I can't find much info specifically for the 420a, and am wondering if any of you have done this.Anyway my new camshaft seals are leaking after completing a brand new headgasket/timing components job. I want to change them...

Yes I have the catch can hooked up as a sealed unit. I think you are right though about the lines being too small, I'll try swapping the hoses like you said. However what about my pcv valve? It won't fit on the smaller fitting on the VC, should I just run the check valve instead? What's going...

Okay I got my new intake setup with a port connected to the catch can outlet for vacuum. Did a few hard pulls and still no luck, can fills up about a half inch. I'm really stumped now, I really don't know what other options I have. It's strange cause it used to be totally fine in the past with...

So would you say my results are good?

Alright ladies and gentlemen I have results from the compression test. Take note these numbers were taken from the engine that was running about two hours before the test. Also add that I am running low compression 8.5:1 JE pistons.Dry Test: Cylinder 1 - 175 Cylinder 2 - 168 Cylinder 3 - 180...

I have not done a compression test, but I'm in the market looking for one currently. Car runs great, zero smoke out of the exhaust, -20inhg of vacuum at idle. Idle is smooth and doesn't jump around. Pulled the plugs and they are all dry with a tint of gold color. I'll do a compression test next...

So I wanted to test what would happen if I drove around without boost, staying in vacuum on boost gauge. Somehow my catch can is still getting some oil into it, even when I baby the car. Starting to think maybe the height of my can is a problem, right out of the line on the valve cover it's a...

This video is a good example as to why I should connect my CC to the intake.

I'll try adding some filler. It also crossed my mind that the catch can is lower in proportion to the valve cover. Would this by chance cause the can to fill up quicker? Im working on getting a fitting attached to my intake pipe as well for vacuum.I need to get a compression test done as...

But if there's less pressure in the valve cover wouldn't the amount of oil going into the can decrease?

I checked my catch can after two hard pulls and the can is about 1/8th full of oil, it's actually surprising of how much oil got dumped into this thing. Would ditching the vented setup and switching to the "sealed" setup with the pre turbo pipe reduce this?

It's this cheap one on AmazonESPEEDER Universal Aluminum Oil... https://www.amazon.com/dp/B07FMV19TR?ref=ppx_pop_mob_ap_shareI'm not too familiar with catch cans myself, this is the first one I've ever owned. But seems to work well. Has a little dipstick so that's nice.Yes I plan to get a...

Installed catch can, check valve for the pcv, new felpro gasket, and I have success! Installed the gasket last night with 2 washers per bolt to help squish the gasket onto the head more. Let it dry overnight. Just took it out and boosted it to 10psi a couple times and I'm completely oil leak...

Yes I'm running a super 16g turbo made my Hahn racecraft. I just ordered an inline check valve to go with the pcv valve like others have mentioned. Hopefully that and the catch can install should do the trick! Keep you all posted

Okay I ordered a catch can last light, along with some hosing for it. My plan is just to vent it to atmosphere for now, untill I can get a port welded to my intake. Currently I'm just running a small intake filter attached to my turbo. Where can I get a check valve for my pcv valve?

I actually never thought of that but makes alot of sense :/ I don't have any port on my intake pipe on my turbo for a hose fitting. So will simply having a catch can connected to the valve cover venting to atmosphere work?

I have gone through now, 3 different valve cover gaskets and all of them are leaking under boost. Normal driving everything is clean and sealed. However once I do a strong pull on the car, oil will spray out of the gasket causing a huge mess in the engine bay. Obviously there is too much...

Thanks guys, I'm just worried the ATF+4 will be too thin for the meshing gears in the Quaife diff. But if it seems to work I'll just go with it!

I've got a manual transmission for a 420a (NVT350) with a Quaife limited slip differential. What should I use in it? I know with a stock transmission you're supposed to use ATF+4, but with this lsd I'm not sure what to use. Thanks.

I'll try re configuring my setup tomorrow and get back to you. Yes the car for the most part is running rich 75% of the time. I believe you're right in that with a vacuum source the fmu will be more stable. Oh and to answer your question earlier its a Hahn super 16g turbo 50mm trim, similar to...

The ratio is around 5:1 currently, it's not necessarily a set "disc" because the BEGI fmu's use a needle valve to adjust rate of gain and by adding or removing restrictions in the signal line. But like I said earlier the fmu works great at crusing speeds like around town or whatever. But at high...

But how exactly would putting the signal line off the intake manifold than the turbo be any different? I mean they're both receiving the same PSI? Thanks for the responses guys.

I've tried running the signal line off the manifold before but it causes the fuel pressure to increase/decrease under vacuum AND boost. Whereas I need the fuel pressure to change under boost only. Unless I installed a one way valve in the signal line. I'll try it again though. I only removed the...

I'm running a turbo 420a setup with 440cc injectors, 250lph walbro pump, BEGI/Cartech FMU, no FCD/missinglink, running at 10psi currently. I'm asking this question to those who are familiar with or use rising rate fmu's like vortech or BEGI etc.With my current setup, I have the stock fuel...

Interesting, because the Hahn stage 2 turbo kit told me to remove the stock regulator.

I'm running a BEGI 2025 rising rate fmu on my turbo 420a, removed stock fpr, with 440cc injectors. Is anyone else running this fmu? I have my base fuel pressure at around 20psi, however even with the brass adjustment needle turned all the way out(supposedly lowers maximum fuel pressure/rate of...

Thank you Mello, I understand a standalone system like MS is the way to go, I'm planning on getting one next summer. Just trying to push the stock ecu to it's limits with my piggypack mods. I know there are some expert 420a turbo guru's out there, just hard to come by these days being the 4g63...

Well I haven't had this problem before, even with the larger injectors, so I figured it wasn't an ecu problem. In general if an engine does this what I described above what are some possible causes?

Shit my bad XD, it's lean not rich

Alright I rearranged my lines so it works now. My fuel pressure regulator signal line is running directly off the turbo compressor housing with no tee. With my wastegate line with boost controller running off an open port on the back on my manifold. Boost controller is now working. Thanks for...

My turbo 420a GS has started having this problem where if the rpms are low and I step on the gas (idle, or cruising), the engine goes extremely lean for a second and the car hesitates bad, after the rpms get around 2k it smooths out. The most recent mod I made on my engine is larger injectors...

Yes I understand the ratios and how they work with boost. However I tried running my fpr signal line running off the manifold, and the fuel pressure will move according to what the vacuum is. Currently I have it set to 20psi with 440cc injectors, however if I rev the engine in neutral the fuel...

Alright I will try running the fpr on the manifold instead of on the boost line. However this means my fuel pressure will increase dramatically when just driving the car normally, or whenever the vacuum changes. The stock regulator is removed. When it was on the boost line, fuel pressure only...

So should I just be running my fuel pressure regulator off the intake manifold? I removed the stock regulator.

Thank you guys for replying. Firstly by the instructions that came with the controller, turning the screw counterclockwise lowers boost, and clockwise raises it. I included a diagram of the boost controller I'm running, it's a NXS Motorsports MBC. Without a controller attached I'm running 8psi...

I know there is probably a thousand manual boost controller troubleshooting threads out there. But none of them have helped with my situation. Running 420a turbo. I have this ball and spring manual boost controller running between the nipple coming out of my turbo and the wastegate. However...

Just installed a set of 440cc injectors on my turbo 420a. They seem to rungreat but I am confused as to what base fuel pressure I should have my SFMU set to, and at what ratio should the fuel pressure should be increasing? I have it set to 20 psi right now and got it to idle pretty decent, at...

So i installed a missing link for my 420a turbo, and i had some questions for anyone who has ever ran one of these on their setup. First of all, when installed it creates huge drop in vacuum on my boost/vacuum gauge, because the small hole on the side of the unit acts as a vacuum leak. Not sure...

Yeah I agree with you, at some point I will get a MS but for the meantime I'm trying to get the maximum amount of power out of this stock ecu. However, is there an injector size I could go with that would work with both stock ecu and MS? Just so I wouldn't have to buy two sets of injectors. Thanks!

Brad Bell submitted a new DSM Profile :420a GS Turbo BuildRead more about this vehicle here...

Alright so i got a wideband installed finally, and by the looks of it. Im running quite rich on 8psi of boost. WOT at 8psi reads around 11 to 12 AFR. Which i understand is a good place to be. Would it be safe to up the boost a little bit with a boost controller? I know probably my next step is...