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Yet another turbo conversion, this time it's a 3G!

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jwahl425

20+ Year Contributor
272
0
Nov 16, 2004
Jacksonville, North Carolina
as some of you know I wrecked my 93 laser RS converted to turbo, significant damage. So I bought a 3g eclipse GS a few days ago and realized that it has the 4G64! obviously I am going to turbo this ride. Now I have looked various places and have decided to pay a shop to do the work, things like the oil return line and ecu problems are just too much labor and more then not problems arise. Sooo, I am looking to put on a 16G w about 6-8 psi, just like I did with my 93 except this motor has good rings and is supposedly able to handle 14psi stock(save the head only allows 13psi of flow or so). Now I have looked at kits

http://www.ddynopower.com/

http://www.turbo-kits.com/eclipse_turbo_kits.html

and
http://www.rippmods.com/ (supercharger but has been discontinued)

here is what it will look like, these are pics from http://www.ddynopower.com/
 

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You should goto eclipseforums.org they are a helpful place for your 3g. Check out the supercharger kits as well. A stock 1g manifold and 14b will bolt up to the car
 
I have looked through many of their posts in that forum and they don't seem very knowledgeable on turbos, they're new to the whole boosted thing and DSmtuners has been with turbos forever, I get alot more knowledge here.
that being said I couldn't find any other superchargers as the RIPP one was discontinued, but I prefer turbo as it doesn't use engine HP, MUCH more efficient.

so I'm guessing the 14b will bolt up just turn it around? LOL I thought it was oriented different like the evo motors.
 
I think you have to fit it around the ac stuff, but i duno i never started my turbo project i just ran nitrous. I sold my 14b on their site. There are a select few that know stuff. What i would do is ask your turbo questions here and ask more install questions there since they know that part.
 
my 3g it came with the body and shave door handles not my choice, but i did intake header nitrous 18 wheels slotted brakes safc2 and 75 shot i think thats it
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DAMN! sorry about your loss man! that was a nice ride, looks kinda like my wrecked eclipse, chic cut infront of me and I slid into her, I was doin about 40 and she was only goin like 15
 

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well, the car is in the shop right now, currently undergoing a suspension replacement. I'm going to have them do the turbo conversion here in a week or so.
now here is what I plan on doin, my HP goals are around 320-350HP

forged pistons/rods ->2G pistons will work correct?
evo 8 DOHC head
turbo...which one would be best? I think around 1bar or higher would be my limit
tubular manifold w tial external wastegate
injectors->660's or 720's
stand alone unit...suggestions?
walbro 255lph
ss oil feed/return lines
fmic/long route piping
water line routing... how will this one go?
2.5"downpipe/2.5"high flow cat/3"catback
wideband o2 unit
might be forgetting something, lmk
I'm lookin to put around 5k into this setup, I'm pretty sure that will be enough.
 
well, the car is in the shop right now, currently undergoing a suspension replacement. I'm going to have them do the turbo conversion here in a week or so.
now here is what I plan on doin, my HP goals are around 320-350HP

forged pistons/rods ->2G pistons will work correct?
evo 8 DOHC head
turbo...which one would be best? I think around 1bar or higher would be my limit
tubular manifold w tial external wastegate
injectors->660's or 720's
stand alone unit...suggestions?
walbro 255lph
ss oil feed/return lines
fmic/long route piping
water line routing... how will this one go?
2.5"downpipe/2.5"high flow cat/3"catback
wideband o2 unit
might be forgetting something, lmk
I'm lookin to put around 5k into this setup, I'm pretty sure that will be enough.
For pistons just go forged, you will have to get 2g machined to fit and I'm not sure that they will work. Turbo i'd go with a 16g or Fp has a 18g that has a dry center section that way you don't have to worry about the water section. As for the manifold just get a 2g ported or evo3, You should get the wastegate off the o2 instead the manifold, 650's would be plenty, 2.5 dp and cat would be fine. I also recommend getting some slotted brakes and nice pads. My brakes got warped fast and changed brakes out helped me out alot.
 
thanks, hey guys, which turbo would you consider the next step up from the evo 3 16g? I don't want the 20g because of the the massive lag, even though I have the 2.4l I would like a turbo capable of around 350-400hp and spools up arond 2800-3200rpms. Actually I see that the evo3 16G is capable of around 25psi, I think that I may go with that one, with the extra .4l displacement it should spool up pretty quick and I think it will match my HP goals.

Evo 3 16G turbo:$598+60 for inlet ported
http://www.slowboyracing.com/more.php?id=52&mods=36-2021,38-2039,41-2030,42-2033


SBR manifold drilled for and including 38MM tial wastegate $299+$50for porting+$200 Tial
http://www.slowboyracing.com/more.php?id=1891&mods=25-8416,28-5474,36-8418

I'm using my old ported O2 housing

I would like to get high impedance injectors so I don't have to wire in another injector resistor pack, anyone know of a set that sprays 620-750cc's?


also I'm looking for a 255lhp fuel pump, which one fits best FWD or AWD?

I'm thinking of doing the DOHC evo head swap because the 3G head isn't able to handle 15-20PSI correct? if so will I have to get a dif. manifold?
 
I know the block can take alot i don't know bought the head. You'll probably want you turbo to spool a little bit slower due to the fwd. I had about 200 whp in my Eclipse and i spun all in first and wheel hop in second. I'd say 18 or 20g if you want something bigger than 16g. To get specs on the Head and the evo swap you'll probably have to goto eclipseforums.org
 
well I did another hour of searching and found out that it takes around $1500 for the head swap so I'm steering away from that one. You have a good point, an 18G sounds like it might work well, how's the spoolup on it on a 4G63? Also, what things can I do to the head and block to make it bulletproof to 25PSI? (not going up that high but I want that extra leeway)
 
yeah man, I already read that thread, took me like 3hrs LOL but he didn't swap to an evo head and he didn't use forged pistons, i pretty much and following his thread however He blew his motor and I'm trying to make mine bulletproof before I throw boost at it, I'm trying to identify his mistakes.
 
I think one of his biggest mistakes was trying to tune 760cc injectors with an safc2. His low and Hi settings in the lower RPMs were all at -50. He told me he plans on having everything redone by summer... Man, it pulled pretty strong, too when I rode with him on that dreadful day. when we came back at stage 6 from the small ride that he gave me, I watched a few dyno runs and he drove off again, then when he came back, you hear metal on metal and it idled pretty bad.. but i gotta say that it sounded mean with that turbo spec cam he had in there.
 
so it sounds like his main prob. was not having it tuned correctly, right? if so looks like I'm doin just about everything he did only runnin forged pistons and 15-20PSI on an evo316g, like i said I'm lookin for 320-350WHP, I don't see y the 3G's shouldn't give any turbo lovin:)
plus I'm sick of people saying it's the weaker species, too bad Mitsubishi decided not to turbo it from the factory, that would have rocked!
 
Yeah it wasnt tuned correctly. He had it dyno-tuned for 8psi, but he wanted to bump it up and tune for 13, but it caused knocking. With those forged pistons, you should be able to build a beast, especially with the e-manage (well, i dont know much about stand-alones, but Ive heard about it before..hah)
 
wow, did he run any kind of knock detection? yeah I hope to run around 17PSI and let it spike a few, I'm just worried about the head, no-one really seems to know that much about it, I don't want to run more PSI then it's capable of.

Well the only question I have right now is does and EVO oil pan fit my block? I tried to drill an oil return and thread the bolts and it came out HORRIBLE!!! oil leaked alll the time. anyhow I would just like to get a oilpan that would bolt up, I doubt the srt-4 one will work, will a 2G/1G oilpan work?
 
I'm not sure if he ran any kind of knock detection besides his ears. I forgot what program he used. I could ask him next time i talk to him. that is if i remember. About the oil pan, I'd ask that on the 3G forums. Someone there should know what other oil pans bolt on there or not.
 
I did, I found out that the evo oilpan will work, I can't wait to have a fast 3G, with its weight I wonder how it will do in the 1/4 mile? say 3250 HP and I think 3000lbs, think I'll hit 13's w/lsd?
 
I did, I found out that the evo oilpan will work, I can't wait to have a fast 3G, with its weight I wonder how it will do in the 1/4 mile? say 3250 HP and I think 3000lbs, think I'll hit 13's w/lsd?

The whole time I was reading this thread, weight was my main thought. SUprised it took so long to be brought up. Good luck with your project though. If you do get into 13s, it'll be high. I read some article about a guy with a turbo 3g, only boosting 6-9 psi, but on a bigger turbo, was only running low 13s.
 
well, the car is in the shop right now, currently undergoing a suspension replacement. I'm going to have them do the turbo conversion here in a week or so.
now here is what I plan on doin, my HP goals are around 320-350HP

forged pistons/rods ->2G pistons will work correct?
evo 8 DOHC head
turbo...which one would be best? I think around 1bar or higher would be my limit
tubular manifold w tial external wastegate
injectors->660's or 720's
stand alone unit...suggestions?
walbro 255lph
ss oil feed/return lines
fmic/long route piping
water line routing... how will this one go?
2.5"downpipe/2.5"high flow cat/3"catback
wideband o2 unit
might be forgetting something, lmk
I'm lookin to put around 5k into this setup, I'm pretty sure that will be enough.

2g pistons?? are you referring to 4g63 pistons, because they will not work. Wiesco makes forged 2.4l dohc pistons for turbo applications.

For a standalone I would go AEM EMS.
 
18g spools a bit slower than the 16g. You want something that can control timing, which greddy emanage can do, emanage ultimate looks good. Safc can't so pulling a ton of fuel isn't a good idea on the mr2 forums people would pull to much fuel and the timing would go crazy and the motor would blow. Emanage isn't a full stand alone its actually a piggy back. If you want the most control you should get a full stand alone like aem. I ran a 9.4 in the 1/8. Couldn't tell you what that would be in the quarter and i probably don't want to know. That was with almost 200 hp. I don't ever remember hearing about the head having any problems. Block can handle 500 hp or so. I'd at least go forged pistons rods shouldn't have a problem. Lsd should help, but from experience traction will be a problem.
 
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