Planning Build up

[Andrew7DG]

What I have right now is a 90 eclipse GSX with very little mods done to it.
I am also trying to figure out what direction I want to take this. What I am doing is planning out everything before I start tearing it apart. Plus it is nice to have all the parts there when I begin to modify it. Also I am on a budget.

Parts that I have laying around for it are
255hp
Aeromotive FPR (both installed)
Exhaust 2.5" start to 3" dejon (installed)(side note, I can probably buy another downpipe from Dejon to hook up to a bigger turbo and eliminate the O2 housing all together and this will also let me mount the WB in a proper location)
Home made boost controler (installed)

not installed
O2 housing 2G (might sell)
EvoIII manifold ported
Hard intercooling pipes for the intercooler
MAFT-came with the FMIC and Pipes but with the Mega squirt system that I want to go with i think i am going to sell it
Blitz blow off valve (not installed came with IC and Pipes)
ARP head studs

Right now I believe I am burning some oil and it is probably due to the valve. I also get lifter tick above 5000 RPM (which I thought was due to the synthetic, switched and problem is still there)
I think the easiest thing to do is replace the head completely. Now what I have been reading is that even though the 1g has bigger intake ports, the 2g gives better midrange because of the velocity effect. Plus it sounds like a better designed head. I also have ARP studs for the head. It would be nice to have a higher rev car but I think the 2g will restrict flow. I would also think about rebuilding the 2g head with bigger cams if I were to go with that head.

Since I am that far into the car (and maybe it isn't the valve seals that are giving me problems but the rings), I am thinking of switching pistons to the 8.5 compression. With this combination of 2g head and 8.5 compression, it should be pretty impressive for torque. Plus they are on the beefy 6 bolt rods

I believe for the computer I am going to go with a megasquirt because it is a MAP and has a lot of tuning capibilities (plus cheap and fun to build). I have also learned that the MAP doesn't like it when the engine burns oil so thats why I am fixing everything now. I will also be getting a wide band for ease of tuning. Running bigger injectors wouldn't be a problem also. Maybe running E85 wouldn't be out of the question either.

I have a 14b right now but I am thinking I will quickly outgrow that- I don't know to what yet. Suggestions?

What I want is just a solid engine that drives nice and responds well. I have been in cars where they just throw on a big turbo and it doesn't idle around very well or big turbo lag. I would be thinking of autocrossing more then just drag racing. I am happy with 12 seconds. I will replace the 3 bolt with a 4 bolt rear end eventualy

I am looking for ideas on what people would do like for a turbo, would they go with the 2g head, piston choise, higher rev capibilities, gasket choise, any other point that I haven't typed out. I will answer any other questions that people have about the car that they need to know before making a suggestion.

I believe If i sell some of the parts I am not using, it would give me more spending room on other stuff. I am also a person that loves building stuff from scratch so keep that in mind.

Thanks

 

[mhuffman]

People have runs in the 12's with the 14b. Burning oil could be bad rings, leaking turbo, leaking valve guides, leaky top end gaskets,e cet ect. I don't think DSM fuel systems are designed to run E85, so i wouldn't use it could damage the car. Heads aren't cheap, and yours is probably OK so i'd just replace all of the upper end gaskets if you're going to pull it.

 

[MyÜberFastGSX]

If you want it to respond well, then I wouldn't go with anything bigger than a Big16g turbo.

 

[Spooling99]

If you would like a cheap solid motor I'd suggest building a fresh 6 bolt with 1g rods and 2g pistons. You might as well have the head checked out as well. As for engine management I strongly suggest DSMlink as they have their own forum and the members there know endless amounts of information to help you out. I've always said theres no reason to upgrade your turbo without maxing the one you have out first. So when you think you've out flowed your 14b you might want to look into something larger there are plenty to choose from. Take your time and do it right the first time. Nothing is worse then having to tear it back down for something you should have done the first time. Goodluck keep us updated.

 

[Andrew7DG]

Well I hope no one minds but I don't have an Eprom ECU and to purchase dsm link used is about $600 I believe. I know they are easier to use then the MS system that I am going with but I think the MS system will run the bigger injectors I need to run the E85. Not to say DSMlink won't run bigger injectors but I am going cost here. MS runs only $200 or $300 at most and has its own forums.

I would also like to do a write up with lots of pictures on how the system works. Maybe people would start using the system then because of cost and effectiveness. I just think people don't know how to use it and thats what is preventing them from using it.

With the FMIC, Bigger injectors, EVO 3 manifold and exhaust, I think I will run that little turbo to the max. I am thinking just getting an EVO 3 Turbo but I am worried I will run that to the max also or I will get bord of it. But maybe sticking with the 14b will be the best way to go till I figure out what to do... I don't know yet....
First thing I want to do is build a solid motor so I don't have to rip it back down again. Turbo, intake, exhaust are all bolt ons that can be added later

 

[Spooling99]

Well it seems like you have your head in the right direction. If your set on running MS I'd do a search on this site theres a couple people running it on here, I haven't heard a definitive "I like it" or "I hate it."

 

[Andrew7DG]

I done a little research and tried to find out how much hp 1g/2g combo. There is a lot of information about it exept on roughly how much it will take. "Depends on the tune of the car" is what I have found out. do you think around 450hp is too much? It wouldn't be running past the 7500rpm limit which people have said that is what breaks the parts.

I think 450hp is a reasonable goal with this car. After that I think other parts start to break and then it become either a race or street car. Thats my opinion though I know there are people on here that have 700 hp and still drive it around.

 

[MyÜberFastGSX]

I'm building my 1g/2g hybrid right now, and were expecting 450awhp on c16.

 

[Spooling99]

Well if you think your motor wont hold it you could always just use aftermarket rods and pistons just to be safe. Do it once, do it right.