Project: 99 Eclipse GST Motor Pull and upgrade
 

Alright everybody, I'm finally getting the motor pulled out of my 99GST in the next few weeks. I'm bringing it to my uncles at Racing Engineering, where the motor will be stripped down, and many things will be refreshed and replaced as well as upgraded. I'm getting the FP 68HTA turbo already, and am looking for a good list of modifications to do to the motor while it is out. I'm still with the original 7 bolt, and it's at about 107,000 miles.

I would like your opinions on what some good mods and parts to replace are, besides the basics like the timing belt, cams and clutching equipment.

I'm upgrading the turbo, clutch and flywheel for starters...

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

What are your goals?

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

Get some cams, FP4R or HKS272.
Obviously you're going to need fuel upgrades, go with something like 1000cc and a Walbro255 pump so you can run e85.

That should put be most of what you need to put you in the mid or maybe high 300s on dynodynamics.

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

^^mhmmm, also need to think of what you're gonna tune with and a nice fmic setup as well. I know with my friends gst, that once they get 300+hp, you need to have your front end suspension and steering parts all in good working order, so make sure that maintenence is all up to date before slapping mods on. Fwd gets scary if not done right.

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

Oh yea, the other mod is to go AWD!
Good call on FMIC and tuning, I'd recommend ECMlink for ease of use. Going to have to get a 95ecu though unless you want to get crazy and run an evo ecu or speed density or something.

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

Well, I'm good on the tuning, i have dsmlink, and plan on getting it professionally tuned at either MAP or DB in the spring, as I will basically have it put away for winter. I have a basic godspeed FMIC for now that I am going to sell eventually, and get a Greddy FMIC, and some short route dejon piping.

And yea, for goals, I want around 400hp. prolly end up with upper 300's, and I'd be more then happy with that, as it will be just for street use as a summer car for now.

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

68HTA is a very wise choice. It literally looks like a 14b or 16g, and makes one hell of a sleeper. Spools up faster than stock, and flows up to 48 lbs/min and costs only 800-900 dollars. What else could a man want to be happy? :)

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

alright, so now I'm thinking about really doing the motor up good, like around $3k worth, valves, cams, porting/polishing, crank, everything. What's a good person/place to have beef up a transmission? I know a shepard tranny would be awesome, but i really don't wanna have to do all the shipping stuff if possible.

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

you will have to ship the tranny out to have it built

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

-Forced Performance Intake tube with Recirc.
-Hallman Boost Controller
-Megan Racing Downpipe, Test Pipe, and Catback
-LIPP Cast O2 Housing
-Fel-Pro PermaTorque Head Gasket
-MSD or Taylor Plug Wires
-NGK BPR7ES Spark Plugs
-Hawver Cast Aluminum Intake Manifold
-JMFab Catchcan
-1350cc FIC BluMax Injectors
-DSMLink
-ETS 3.5" Intercooler
-Walbro 255lph Fuel Pump
-HKS 264 Intake Cam
-HKS 272 Exhaust Cam
-Forced Performance Cast Exhaust Manifold

Edit - Lol I only read the first post and thought this was posted today and not a week ago. Not sure if you are still wondering what a good set-up would be or not, but this is what I would build my DSM with.

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

Why the Hawver cast mani? Just wondering.

If the shells clean, make it awd!! I believe it's easier on 2gs, if I remember correctly. Either that or really good tires, cause you're gonna be spinning.

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

It is ugly but I like the design for a street car with a smaller turbo. Also you don't have to ever worry about blowing a weld, it cracking or having a pin hole leak in a weld. Kind of the same reasons I would get the cast O2 Housing and cast Exhaust Mani, just less to worry about.

Another thing would be MAPs Rev3 Intake Manifold, which I like even better now that I remembered about it.

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

If you're only going for < 450whp, don't buy a built motor. Just do a stock rebuilt 6 bolt and save yourself the money.

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

Stock 6 bolt rebuilt. . .If done by a shop what would be the average numbers in cost, that one should be looking at. Just a rough estimate. I was quoted 3k by my parents local mechanics. I called them crazy and left. I am thinking about getting my 6 bolt rebuild. Just a Basic rebuild.

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

that's the thing, since I'm still with the 7bolt, i dont wanna put all that money into it, then have the damn thing crankwalk on me. My uncle owns a race engine shop, and the plan was to do a general full build on the motor... cook the block, port and polish head, cams, crank, pistons, springs and retainers, valves all that good stuff, but idk if I should still do it with it being the 7bolt...

Motor has to be pulled either way, to do timing belt, clutch and flywheel. So I figured since I got the FP 68HTA turbo, that building the motor up would be awesome so it could handle the turbo but its still a 7bolt...

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

not all 7bolts walk. the evo 3 has a built 7bolt and has a very hard life and is still in great shape

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

I'd say a refreshed 6-BOLT STOCK, with a nice headgasket, good tune, and some L19/A1 headstuds you can make really good relaible HP

I am on a stock 6-bolt shortblock, stock headgasket, regular ARPs, and my car makes 450awhp at DB no problem. I've been making over 400awhp for about a year now with no troubles. I did a stock rebuild with ACL Race bearings, new rings, honed the block myself, checked all the clearences, etc, and slapped it together.

My 2 cents.

Get a junkyard 6bolt. Freshen it up. Do the swap in your car, make it pretty. That Billet 16G, with some E85 would be fun!

Definitely need injectors over 1000cc if doing the E85.

One Walbro 255 HP is enough for your goals

I highly recommend the FP Race exhaust manifold.

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

My refreshed stock 6 bolt by me has been making 400+ whp for over a year now.

Stock head (+cams), headgasket, shortblock
Arp regular headstuds, ACL race bearings
Stock rings, stock bore, oil squirters, no balance shafts

I would really suggest a turned down balance shaft instead. I hate the increased oil pressure that comes from eliminating them.

I say:

stock 6bolt swap
E85
Injectors over 1000cc
Single Walbro 255hp
ACT 2600 clutch and flywheel
*I've used both the fidanza and the ACT flywheels. I think the ACT is a more appropriate weight
*The ACT clutches are proven on DSMs. Get a sprung 6 puck disk, though
FP exhaust manifold
Don't really need an intake manifold, but it helps.
Cams. I have Brian Crower 272s (or get HKS) on stock springs and retainers. Works great.

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

I really appreciate the ideas! I believe I am going to stick with the 7bolt block... I already have a fidanza flywheel with a clutch I plan on using. Also got a 255hp pump, and plan on getting 1000cc+ injectors. Also do plan on getting an intake manifold, and fp exhaust manifold.

Here's a quick question, I'm selling my current FMIC setup, with all piping. I'm gonna go with short route IC piping, and a Greddy XL front mount hopefully... Is it better to stick with the stock 2g MAS or switch to a GM 3" MAF? I know the MAF runs in the IC piping vs. the stock 2g MAS being in the intake pipe right?

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

yes. i say stay with the MAS. unless u already firgured out ur equipment. link?

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

Alright cool, I will stay with the MAS. Here's the progress, got the motor and tranny pulled, now just trying to decide what to spend the cash on, and if I should send the tranny to John Sheppard and have it built or not...

http://i189.photobucket.com/albums/z...1/IMG00089.jpg


http://i189.photobucket.com/albums/z...1/IMG00087.jpg

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

Should find yourself an awd parts car, and make all those mods worth your while :)

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

haha, yea i know, that would be a good choice, but im stickin with the fwd, less parts to fix and upgrade.... I'm lookin at running between 400-550hp now, will the dejon short route IC piping with the mishimoto intercooler they sell be a good choice for that kind of power?

Also I'm looking at what to get for FWD components in the front end... What all should I upgrade other then the axels/driveshafts, a-arms, wheel bearings?

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

Axles should be fine, as well as your A-arms, but I would definitely invest in some good springs/shocks or coilovers. Those will be about your best chance at getting any kind of traction. And with your power goals, you probably still won't be able to hook up until about halfway through 4th gear.

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

You will have alot of fun hooking up with fwd. I was making over 400 in the talon before I took it all back off. I would not hook till the end of 4th gear with some sticky 18's on the car. even know with the evo 3 16g it will spin through 3rd

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

Bah...Just get some 16x8's and some drag radials for the street

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

So would you say it would be to much to have 450hp? I want to have a nice build incase I ever get an awd or awd shell, i could already have a powerhouse of a motor to swap in:smile:

Would a stage 1 build w/ a LSD from sheptrans be enough to hold 450hp?

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

Id going AWD is in your future plans, I would say do that first. Having big HP is pretty much useless on a FWD street car.

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

+1

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

Would be plenty to hold the power, it all depends on how you drive it. If you plan on pounding the shit out of it....I wouldn't hold my breath.

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

Keep your block, the 95-96 7-bolts are the ones with the most problems. Have Shep do the basic rebuild with the LSD like you mentioned and you'll be good.

Re: Project: 99 Eclipse GST Motor Pull and upgrade
 

Cool, thats the plan then. Does anybody have an opinion on the dejontool Short Route IC kit? It looks like it comes with a mishimoto intercooler? Anyone have one?