How well do 2G internals hold up?

I ask because my goals with this car are not exactly super lofty. I want to get around 275-325HP but don't know how well the stock internals hold up. With those figures in mind, are the pistons and rods fine, or do they need to be upgraded?

Fuel mods and some other obvious things need to be upgraded as well, but I'm mainly concerned with the internals at this point. If they do need to be upgraded, I'd rather start there and work my way outward.

Your internals will be fine for that... IIRC 2g internals can handle about 400hp before needed upgraded. 1g's will handle about 450ish...

Nice. Do you know if cams make a big difference or not? I know with my Grand Am, boost specific cams made a decent improvement when they were used in conjunction with a superchardger or turbo. Does the same go for the 4G63?

Does the same go for the 4G63?
I am talkin about the 4g63...

I think he was referring to whether or not cams make a big difference on the 4g63

I think he was referring to whether or not cams make a big difference on the 4g63
Oooo Good call. lol


Yes, cams do make a huge difference on these motors. In reality, cams make a huge difference on just about every motor out there. :2cents:

There are a few indiviguals who have put down 500hp on stock 7bolt 4g63 internals. What is your car & current mods?

1995 Eclipse GS-T.

Completely stock. Just found this little gem with only 76400 miles on it within the last month, and the previous owner was likely not a gear head of any sorts, because I still have the original purchase papers and shit for it, and they purchased the highest level maintainence package and what not. She's crisp.

Good deal. Unmolested DSM's are the best to start with. :)

1g's will handle about 450ish...
Dont listen to 2g boy over there :p.

Just playing. I dont know about 7 bolts, but I know 6 bolts are good, stout motors. 450 shouldnt be much problem at all on a 6 bolt, I know of several guys around here that have been putting down 500+ on sock 6 bolt internals. I think the record for stock 6 bolt internals is like 585whp. Personally, I am going to push it to atleast 450 and try to keep it to 500 or below if the current plan holds.

Dont listen to 2g boy over there :p.
Somebody is just jealous of my monsterous motor... lol :rolleyes: :p

Good deal. Unmolested DSM's are the best to start with. :)

I agree. :boink:

Somebody is just jealous of my monsterous motor... lol :rolleyes: :p


Somebody is just jealous of my monsterous motor.

Sure Brian's motor is more built than mine too bad his stupid ass 18g wont be able to make enough power to keep up with me. :p

18g FTW...


Pshhhhh... :rolleyes: :lol:

The 18G is rated at 400hp, bolts up just like a 16G, and spools quickly enough to be very streetable.

Proof (http://linux.forcedperformance.net/merchant2/merchant.mv?Screen=PROD&Store_Code=FP&Product_Code=NTDSM18G6&Category_Code=DSM-Turbo)

Uh oh Brian! DSMlink + PTE 57 trim > SAFC + 18g. Ha ha, just playin man ;). But seriously, ditch the SAFC and 18g :p.

Thread starter, what turbo are you running? What are your mods?

18g? That's like the diet coke of turbos.

What would you call a T28?

What would you call a T28?


The coke zero.

T28=Tab

That shit is gross.

I'm not running a FP 18g, its a Greddy 18g and it supports 450. So nah! :p lol


I don't really give a shit. I just can't wait to see the look on your face when my 18g owns you. lol :rolleyes:

Bone stock at the moment. Plan on doing work to it over the next few years. I'm thinking Big 16G or T28 most likely. Maybe a few cosmetic upgrades under the hood. I like the Injen oil cap and spark plug cover. I actually need a new spark plug cover, as mine is slightly cracked.

Well, upon reading up on some other threads, it looks as though I might be going with the EvoIII Big 16G over the T28. Seems the general concensus on that is that the EvoIII has a bit more headroom than the T28, and it costs less too. So going with that in mind, help me with my check list here so I can better situate myself for my proposed build.

EvoIII Big 16G Turbo
EvoIII Exhaust Mani
EvoIII O2 Sensor Housing
Walbro 255 fuel pump
680cc Injectors
DSM 2g FTS FPR
Stronger Clutch
Data Logger

That look about right? What would you guys recommend for a data logger? I saw DSMlink mentioned, but I know virutally nothing about it. From what I read, you give them the specs, and they ship you a new eprom chip to put in your ECU (if it's been socketed already).

If you haven't had it socketed already, I gather it costs $600 to have it socketed, and have an extra eprom with your specs on it, correct?


Would using DSMlink kinda be overkill as far as for the setup I'd have?

Man, DSMLink FTW... seriously... it is one of the easiest/best tuning devices out there for DSMs...

You'll need the ECU socketed and a laptop to run it...
I think you should keep the stock manifold... get it ported, but no need to spend the extra, less you just want to(then you could just hand it to me)...

Aeromotive FPR is the best out there

ACT 2100 Clutch would probably hold all that power and still be streetable (maybe 2600)

Since it's bone stock, I might suggest you open that exhaust up... At least 2.5 in... 3" is probably best... that's a big bottleneck right there...

I also suggest getting a better BOV, a 1G will probably be fine, less you want it for the sound

EvoIII Exhaust Mani



You don't necessarily need this modification. If you have a 2g, your exhaust manifold will flow fine for a 16g.

Yeah, I forgot about the exhaust. Thats something that is a gimmie. If I don't use the EvoIII mani, do I need an adapter of some sort, or does it just bolt straight on?

As far as the BOV was concerned, I was going to see if I could grab one from an Evo guy thats upgrading his from stock.

Yeah, I forgot about the exhaust. Thats something that is a gimmie. If I don't use the EvoIII mani, do I need an adapter of some sort, or does it just bolt straight on?

As far as the BOV was concerned, I was going to see if I could grab one from an Evo guy thats upgrading his from stock.

I do believe the turbo is a direct bolt-on ... The Evo BOV is still plastic (IIRC)... you need to purchase another BOV...

Yes the turbo does bolt right on in a sense that it will bolt right up to the manifold. But you need to buy a 16g install kit for your 2g. It gives you an elbow for your intercooler piping to bolt up and some new oil lines.

For a 1g the 16g is a direct bolt on.


And what Mike said is correct. You need to buy an aftermarket blow off valve. For a 16g a Greddy RS would be perfect. And it's under 200 bucks.


Oh also, while you have that exhaust manifold off you might as well port it out. I even found a link for you that details this procedure If you have the tools that is.

http://www.vfaq.com/mods/porting-exhman.html


[Edit] Also you o2 sensor housing. You can save yourself some cash and just port out the one you have.

http://www.vfaq.com/mods/porting-O2.html

I thought the stock 2g BOV was lackluster due to it not being able to handle much more than stock boost levels, not because it was plastic? I know the Evo VIII one is still plastic, but it handles boost levels to upwards of 22 PSI safely from what I've read, which is more than I'd likely ever reach.

Does the 2g adapter kit only apply if you've got the SMIC, or are you still in need of one if you've got a FMIC? I've been considering getting a FMIC.

I thought the stock 2g BOV was lackluster due to it not being able to handle much more than stock boost levels, not because it was plastic? I know the Evo VIII one is still plastic, but it handles boost levels to upwards of 22 PSI safely from what I've read, which is more than I'd likely ever reach.

Does the 2g adapter kit only apply if you've got the SMIC, or are you still in need of one if you've got a FMIC? I've been considering getting a FMIC.


It's for both. If you look at the turbo (16g) it has a flat service where a bent flange should go. (Which is where the IC piping hooks in) Even if you had a FMIC there still needs to be a way for the IC piping to connect to the turbo and that bent flange is it.

You could be correct about the stock EVO BOV, but IIRC the stock boost on an EVO is 16psi and I know most people who boost higher than that replace the stocker with something more reliable and leak free. Because I don't think the issue is if the Evo BOV will hold the boost, it's if it will hold the boost and not leak.

Hmmm. I guess I'll look into a different BOV then. I just remember reading an article on DSMtuners about someone who snagged one at low cost and did a write up on it.

I also think I might just buy an O2 housing. I definetly don't have the tools to do that.

Hmmm. I guess I'll look into a different BOV then. I just remember reading an article on DSMtuners about someone who snagged one at low cost and did a write up on it.

I also think I might just buy an O2 housing. I definetly don't have the tools to do that.


Here is a little thread from tuners on it.

http://www.dsmtuners.com/forums/showthread.php?t=227117&highlight=Evo+BOV

Looks like the Evo BOV might work for your application if you don't really plan on boosting over 19psi.


Learn something new every day :)

One question I do have is, will I notice a significant difference between a FMIC and an upgraded SMIC?

Generally I'd think a FMIC would cool much better, and it looks a lot better from an asthetics POV, but does a larger SMIC do as good of a job, or almost?

One thing I don't like about the 95 is the front lip. I like the 2Gb lips a helluva lot better, and those are the ones that look great with a big o'le FMIC on them. Mine looks kinda weird because you can see a whole bunch of gap through the opening, even with a FMIC there.

2ga FMIC look like a smiley face. Show'n some grill.. I personally wont think you'll notice the improvment in effency untill you run out of effency.

The only reason I ask, aside from the fact I don't like the smilely face grill, is the fact I've noticed the SMIC's tend to be a little bit cheaper, not to mention it leaves the car looking stock making for a good sleeper.

For the SMIC vs FMIC thing... think about where the airflow is. Sure theres some up there where the SMIC is, but theres a lot more in the front. If you are going to go through the money and effort to upgrade IC shit do it right and go FMIC.

FMIC FTW

it not only looks nice, it is much more efficient...

Besides, think a/b it... Noone makes Side-mount intercooler chillers... ;)

I'm not really worried about chillers.

As far as exhausts go, is there anywhere you guys know of that you can hear clips of the exhaust? I know magnaflow has clips (personally didn't really care for theirs), but are there anymore?

I'd really like to avoid the pissed off bumble bee sound I hear on many a sport compacts.

I'm not really worried about chillers.

As far as exhausts go, is there anywhere you guys know of that you can hear clips of the exhaust? I know magnaflow has clips (personally didn't really care for theirs), but are there anymore?

I'd really like to avoid the pissed off bumble bee sound I hear on many a sport compacts.


http://dsmtuners.com/forums/showthread.php?t=137124

Sweetness. Thanks a bunch!

Few more questions (you guys are gonna end up killin me for all the Q's :P)

I'm seeing FMIC kits like this on ebay...

http://cgi.ebay.com/ebaymotors/95-99-Eclipse-DSM-2nd-Gen-2G-Intercooler-FMIC-Kit-4G63_W0QQitemZ330063611811QQihZ014QQcategoryZ33742 QQrdZ1QQcmdZViewItem

And it's really turning my head at the price. Would you recommend looking into one of these, or stayin away from them?

Also, with a new set of cams, are they plug and play (bolt on and go) or do they require an ECM reflash like the GM's I've had?

Thanks a bunch guys, you've really been a lot of help.

once you start modding invest in dsmlink!!! trust me ;)

And if you do not want to spend alot of money just go with a 1g bov.

Few more questions (you guys are gonna end up killin me for all the Q's :P)

I'm seeing FMIC kits like this on ebay...

http://cgi.ebay.com/ebaymotors/95-99-Eclipse-DSM-2nd-Gen-2G-Intercooler-FMIC-Kit-4G63_W0QQitemZ330063611811QQihZ014QQcategoryZ33742 QQrdZ1QQcmdZViewItem

And it's really turning my head at the price. Would you recommend looking into one of these, or stayin away from them?

Also, with a new set of cams, are they plug and play (bolt on and go) or do they require an ECM reflash like the GM's I've had?

Thanks a bunch guys, you've really been a lot of help.

An Intercooler for the most part is an intercooler. I know alot of people have bought Ebay FMIC and had a generally positive experience with them. I can't see that intercooler really being a problem. I am however almost 100% sure that the Greddy RS in that kit is fake. Considering my friend has an authentic one and it's a bit different.

Cams are plug and play, you will probably need to pick up a set of adjustable cam gears so you can advance/retard your timing for the best setup with those cams. But honestly you are going to see your best gains from cams when you combine them with a program like DSMlink.

As far as the EVO Bov goes...there are 2 differant bovs for EVOS. There are the plastic ones that came on the EVO 8. Then there are the metal ones that came on the EVO 8 MR and all the EVO 9s. From what I have found out about it, the things holds up to 25 psi. I have one on my car and it works great and was easy to install because you dont need an adapter for it.

As far as the FMIC vs. SMIC... If you are going to go through the work you may as well just do a FMIC. The ebay ones seem to be really popular the XS power one seems to be the one that most people have been getting.

Only on AF can a thread start out from "How well do 2g internals hold up" and end at wich BOV's is better..

Only on AF can a thread start out from "How well do 2g internals hold up" and end at wich BOV's is better..
:lol:

I must agree with this... The only reason I didn't stop the thread was because they kept it a technical conversation for the most part...


In future threads though, we do need to stick to topic a little closer guys. Unless of course the conversation drifts to another technical aspect relating to the original topic... :wink:

Its all good though...

The thread change is sorta my fault, but I didn't want to post up about 10 different threads each with it's own question. I figured it'd be better to keep it in one thread. Easier for me to find, and less mess for you guys to see. :p

As long as the OP was the one that changed the topic I don't see that there was to much of a problem. Especially since he did it to stop from creating a bunch of threads.

As long as the OP was the one that changed the topic I don't see that there was to much of a problem. Especially since he did it to stop from creating a bunch of threads.
Right, I don't have much of a problem with it if the thread title is something that could relate to many questions. This one was supposed to be geared more towards 2g internals... See what I mean kinda? It doesn't really bother me either way... lol