420A turboing my 420a

[totaleclipse_05]

No no, no matter what you will have to get a flange welded to the IC pipe so that you can bolt the BOV to the pipe..

I've actually just seen a new product out where the BOV flange is attached to the Silicone couplers used for the intake and intercooler piping. Looked pretty cool, but I haven't heard if it's any good. Neat idea though.

 

[DSMcrazy3]

I've actually just seen a new product out where the BOV flange is attached to the Silicone couplers used for the intake and intercooler piping. Looked pretty cool, but I haven't heard if it's any good. Neat idea though.

I've seen it too. I think of it more as a temporary set-up. A clamp on attatchment is much more subject to boost leak as opposed to a welded on flange.

 

[XMasta19]

yeah umm...you can get piping with welded bov flanges on ebay for next to nothing...probably even cheaper than the cost of all those damn couplers and clamps

 

[DSMcrazy3]

I don't think the clamp thing is a bad idea at all, personally. I just don't think it beats a welded on flange. For performance sake.

 

[totaleclipse_05]

yeah umm...you can get piping with welded bov flanges on ebay for next to nothing...probably even cheaper than the cost of all those damn couplers and clamps

Yeah umm.... ok? We didn't know that at all WTF

Maybe you should get started on your write up on how to do your intercooler piping using only U-bends because you seem to brag about it as much as possible (which isn't much of a feat when you think about it) and say you are working on it all the time.

Sorry, but I'm just getting sick of all your smart ass comments making yourself seem like you know everything. Sure we could find intercooler piping on eBay for next to nothing, it's piping. I was simply saying there are alternatives to it if maybe you can't find the right bend which you need and don't have access to a welder.

 

[BigRand]

Okay so I've been gone for a minute, but I was reading some of the posts earlier and had a thought about recirculating the BOV.

I thought the reason we (we as in 420a turbo's) don't recirculate the bov is because we run a MAP sensor and not a MAFT like our 4g63 brothers. They need that air to come back in because the ecu is expecting the air to be there since it calculated it coming in from that big black box attached to the air filter.

I believe we dont' have one of those, and that our ecu uses other means. Especially since our ECU freaks out when it sees the kind of air we throw at it anyways and we have to trick it using things like FCD or missing link.

I do see somewhat of a valid point in that reciculating the bov might help keep the turbo spooled up during shifts. But I just don't believe its worth it. I do believe it is critical for a 4g63 to be as effeciant as possible though.

Another reason why I don't think its worth it is cause it just doesn't sound as cool...........

All I know is that when I'm taking a 30mph off ramp at 70mph (I mean taking a fast corner at my local speed way), I don't have a problem keeping the turbo spooled up when I'm letting on and off the gas around the tight circular corner. Plus it just sounds awesome to have the bov blow off about 60times in a corner.


Any thoughts?

 

[clipsit]

Plus it just sounds awesome to have the bov blow off about 60times in a corner.


Any thoughts?

Another reason why I don't think its worth it is cause it just doesn't sound as cool...........

I agree, I too have no problem staying spooled, but if it would help then that would just be amazing.

I think if that's what someone wanted to do, then more power to ya, but it's definitely a waste of time and money, unless you have the tools and means to do it. I say to not worry about it and just vent to the atmosphere. Like Rand said, the 4g63, or any car running a maft 'usually' needs that bov recirc'd b/c that is how the car is setup, unless you are running a stand-alone ems. Now, you can vent to the atmosphere on a maft car, but it will run like crap, or it will run ok, but not to it's full potential. But that's just my 2 cents...

 

[GSGoinFast]

With a speed density system like our cars have, we have no need to recirculate. I don't know if recirculating actually helps keep the turbo spooled, but since I don't have any problem keeping mine spooled, I would never put the work in to fab it up to recirculate.

 

[WHite97RS]

you may want to look into a starter wrap/heatshield, also i didnt notice anything about your sparkplugs, but you'll wanna upgrade to the NGK bkr7e spark plugs when you go turbo.

 

[RoaSted]

Whats up guys. I have the Hahns turbo kit for my 420a. Just have rebuilt the engine with forged internals. Im really wanting to crank up the boost. I was wondering if i got a set of 440 injectors and a SAFC II would that be good enough for tuning. Im stumped and wish i could afford the portfuller but im broke after the rebuild. Please help!

 

[VelocitàPaola]

The PortFueler would be your best bet, but you could probably get away with 12-14psi of boost or so with an S-FMU and those 440's.

You could also always go with a custom 8-injector setup, or Megasquirt. Both of those options are cheaper than the PortFueler, but in all cases, if you want more fuel, you're going to have to pay! There's no cheap way around it.

Here's a link to the 8-injector guide:
http://www.2gnt.com/www/corbin/8inj.html

 

[RoaSted]

hey man thanks alot. If i chose to do that 8 injector set up would i use my stock injectors and then whatever other size i went with. I plan on runnning at least 15 psi and 20 if we can get enought fuel. Another question? would my stock injectors be my primary or secondary injectors? And do you have a link were i can look at the MS. I want to look around and make sure i get this tunning right. Thanks man for the help. Im sure you will be hearing back from me

 

[VelocitàPaola]

hey man thanks alot. If i chose to do that 8 injector set up would i use my stock injectors and then whatever other size i went with. I plan on runnning at least 15 psi and 20 if we can get enought fuel. Another question? would my stock injectors be my primary or secondary injectors? And do you have a link were i can look at the MS. I want to look around and make sure i get this tunning right. Thanks man for the help. Im sure you will be hearing back from me

With the 8-injector set up, you use your stock injectors (since they're still controlled by the ECU) as the primaries, and whatever other size you want as the secondaries. I recommend something similar in size to the stockers - at WOT and under full boost that's equal to about a single 500cc injector.

With either the 034EIC (used in Corbin's 8-injector set up), or the Megasquirt, there is plenty of tuning necessary, so definitely make sure you do your research; you're on the right track. Megasquirt is "experimental," but there is much more support for it (both here and on the various Megasquirt forums) and it can eventually be upgraded to a full programmable engine management system (meaning no need for a stock ECU anymore).

Here are all of the links you'll likely ever need as far as Megasquirt goes:
Megasquirt Links

 

[RoaSted]

Thanks man you have helped a lot. Ill let my friend who is helping me build my car look at all what you said. This stuff get confusing for me. But he has worked on eclipses for awhile now. When i get it runing and everything I will Post some pics. So if i ran some 550cc and a walbro 255 i would be straight? thanks again man for the advice. I have a good start now

 

[VelocitàPaola]

Thanks man you have helped a lot. Ill let my friend who is helping me build my car look at all what you said. This stuff get confusing for me. But he has worked on eclipses for awhile now. When i get it runing and everything I will Post some pics. So if i ran some 550cc and a walbro 255 i would be straight? thanks again man for the advice. I have a good start now

Not quite, you'd still need at least an FMU to raise the fuel pressure under boost, otherwise you'll still lean out.

And with those big injectors, you'll be dumping alot of fuel into the engine even at idle. One of the benefits of an 8-injector setup is that it's totally boost dependant, so the extra fuel isn't added unless it's needed.

 

[GSGoinFast]

Thanks man you have helped a lot. Ill let my friend who is helping me build my car look at all what you said. This stuff get confusing for me. But he has worked on eclipses for awhile now. When i get it runing and everything I will Post some pics. So if i ran some 550cc and a walbro 255 i would be straight? thanks again man for the advice. I have a good start now

No, you would need atleast a SFMU to lower the idle fuel pressure, and a S-AFC to lower the idle fuel even more. And for that price, you would be much better going with the MSnS or.. the... Port... fueler... whew!

 

[VelocitàPaola]

No, you would need atleast a SFMU to lower the idle fuel pressure, and a S-AFC to lower the idle fuel even more. And for that price, you would be much better going with the MSnS or.. the... Port... fueler... whew!

I, uh, assumed he was keeping the stock FPR for now...

I recommend doing it how all newly turbo'd 420A's do it: stock FPR, stock injectors, 12:1 FMU, and Walbro 255. After you get to that point (which should be good for up to about 8 psi), you can start designing a more elaborate and customized fuel system; like MS or PortFueler.

 

[clipsit]

I recommend doing it how all newly turbo'd 420A's do it: stock FPR, stock injectors, 12:1 FMU, and Walbro 255. After you get to that point (which should be good for up to about 8 psi), you can start designing a more elaborate and customized fuel system; like MS or PortFueler.

I agree...get used to the new setup and then go big after you think you got a hang of it and are a little more knowledgable on the fuel aspect and how it works...just my add on to VelocitàPaola 2 cents.

 

[GSGoinFast]

I, uh, assumed he was keeping the stock FPR for now...

I recommend doing it how all newly turbo'd 420A's do it: stock FPR, stock injectors, 12:1 FMU, and Walbro 255. After you get to that point (which should be good for up to about 8 psi), you can start designing a more elaborate and customized fuel system; like MS or PortFueler.

Oh I thought he might already have the 500cc injectors... Maybe he was just throwing that size out there

 

[Blitzeclips]

I want the MSnS, and it is the same amount of $$ if not a little more then the fuel set-up listed ^^, but Ii'm very worried about the installation. I can figure out mechanical things pretty well, but wires, selnoids, and soldering scares the SH!T out of me. I'm assuming the install by a professional would run around $300, but I may be wrong. Any suggestions? Rough estimates?

So around what psi could a fully built motor run the newly boosted fuel setup run? That sounded confusing... With a 12:1 FMU, 255lph pump, 550cc, safc-II: How much Psi could be run? MAX?

 

[GSGoinFast]

I want the MSnS, and it is the same amount of $$ if not a little more then the fuel set-up listed ^^, but Ii'm very worried about the installation. I can figure out mechanical things pretty well, but wires, selnoids, and soldering scares the SH!T out of me. I'm assuming the install by a professional would run around $300, but I may be wrong. Any suggestions? Rough estimates?

So around what psi could a fully built motor run the newly boosted fuel setup run? That sounded confusing... With a 12:1 FMU, 255lph pump, 550cc, safc-II: How much Psi could be run? MAX?

Just enough boost to drown your engine in fuel and not have it idle. If you want 550cc injectors, you DO NOT want a 12:1 fmu. You would be dumping rediculous amounts of fuel into the engine. Like I and Velocity(however he spells it ) said, either stock injectors with a 12:1 fmu, or a s-fmu with the 550's. But with a built engine, I would go for the MSnS. Wiring isn't that difficult(one of the few things I do right ) I mean the wire harness has the name of the devices they go to printed on them!

 

[VelocitàPaola]

Ok ok... since no one can get it right, it's Veh-lo-chee-TAH Pay-OH-la.

 

[GSGoinFast]

Ok ok... since no one can get it right, it's chee-TOH man

The cheesiest?

 

[VelocitàPaola]

Ugh... you guys are so uncultured. It's Italian for "I'm freakin' awesome."

 

[Blitzeclips]

HAHA Velo thats great!


Well I've read up on the megasquirt pretty extensively and I'm lost as to where and how installation would go. Thats the main thing that scares me. I can hook everything else up just fine, but I can't afford downtime more then 3 or 4 days if MSnS took more time...

So, with a S-FMU, 550's, SAFCII, and pump, where would max boost sit around?

P.S- I spoke with the guys over at SBR, and they said they could tune my car very well with 550s and a SAFC. I've heard differently though (550s do dump alot of fuel into the motor) but whatt is your take on that? I don't want to push more then 22psi TOPS. Just because,it's a DD...