Performance Mods Question

[XxXEcLiPsE93]

I have a 93 eclipse gs 4g63 engine..and the car is totally stock....and i was just wondering if any of you tuners knew my cars specs in terms of top speed and 1/4 mile time

Also i was wondering if anyone could tell me if my car could reach into the 15 seconds for 1/4 mile and if i could do that without turbos, superchargers, nitrous, or any other forced induction or engine swap...

The mods i have planned for the car are as follows:
pacesetter headers
pacesetter exhaust system
injen cai
hi-flow cat

I was wondering if these mods were enough to get me into the 15's for 1/4 mile and if not, then what other mods could i do to get me there other than forced induction or engine swap

I would also like to know if my car could beat a 2nd gen probe gt..

I know this is alot of info im asking but i would really appreciate it...

 

[wicked93GS]

ok, first off, I dont know the 1/4 mile times, but its probably 16s or so, second off, dont get the header, just port your exhaust manifold, it will give you just as good of gains, the pacesetter exhaust system is ok I hear if you cut off the crappy pacesetter muffler and put somethign else on there, I'm going to just go to a muffler shop and have one custom made, as for the intake, again I'm going to a muffler shop and have them bend a couple 2 1/2" pipes to my specifications and make a ram air system, sisnce I need to replace my water pump, while I'm down there I'm going to remove the balance shafts and put in cams from a turbo car, and after its back together I'm adding an underdrive pulley, then port the intake manifold, that should gain me about 30 HP or so, probabaly a bit more with any luck, putting me to 165 at the crank, from there I am going to put a small t-25 turbo on and run just 5-7 psi, add the turbo ecu, injectors and injector resistor pack, after thats all set up and running I'll add a SAFC and the translator box for the GM MAF and a GM MAF, I think all this will take me to somewhere around 220 crank HP and with any luck and a good tune 200 WHP, hopefully putting me in the 14s, as for the cost? lets see...1500 or so I'd estimate, maybe a bit more, after I reach my goal of 200 WHP this engine though will be finished, I wouldnt put any more money into a 7 bolt, then I get to start on a 6 bolt serious engine.....

 

[Bohica]

I am new to these cars, so please help explain.

How are you going to do all of that stuff for $1,500? I would have thought the turbo would be more than that alone.

 

[wicked93GS]

heh, first off, removing the balance shafts is free if you want to do a bit of work, porting exhaust and intake manifold 200 or so, though I'm going to do it myself, so far the total is 0 for me, for someone else...240 or 250 if they do the labor themselves and have a machine shop do the porting, 40 dollars or so to get a muffler shop to mandrel bend some pieces for my intake to make my ram air system, 200, maybe 250 for a mandrel bent exhaust system(2.5 ") at my local muffler shop, so we are up to about 300 now, or 550 if you dont like doing the work yourself, I can find used turbo cams for 50, and I'd replace them when doing my water pump, so up to 350, underdrive pulley, about 130 or so, up to 480 for me, 730 for the machine shop guy(I am not counting labor since I'm doing all that myself)now a used t-25 I should be able to come across for 200, and a manifold(this is the one I'll port) for another 100, hiking my cost to 780, resistor pack I can find for about 20 bucks at a junyard or on the web, so an even 800 now, turbo ecu....from 1-200, though for this I'm going to say 200, so its up to 1000 for me, 1250 for the machine shop guy, 300 or so for a SAFC, I'm at 1300 now, and 200 for the gm MAF translator, which puts me at 1500, and 50 for the GM MAF from a junyard, my grand total $1550, $1800 for the machine shop guy(plus labor if he doesnt want to do the work himself) I have no fear of doing the work myself and wasting a whole hell of a lot of time, although I forgot the o2 housing for the turbo and maybe 1 or two other things, still shouldnt be too much though

 

[Bohica]

cool.

I didn't know that you could get a used turbo for that cheap.

From what I have read, it sounds like there is a whole lot of other crap that you would need to go the turbo route. I have seen it estimated at between $3,000 and $5,000. But I am sure those estimates are for new parts. I didn't know they came so cheap used.

 

[qwall]

Bohica, yea you can put your car into 15's. It'll probably be cheaper to save up and get a turbo. Pacesetter are good when you gasket-match port the runners and clean up the welds inside. Lose their muffler thou

 

[wicked93GS]

yep, used turbo parts you can come across dirt cheap if you know where to look, the reason the t-25 is so cheap used is because no one wants it cause it can only push out like 13 or 14 psi, but since I only plan on using 5-7 because my NT pistons and rings suck...I dont care, used manifolds you can get for 100, maybe a bit more, the o2 sensor housing I dont know, but it cant be that much, all these parts are parts people usually upgrade so you can get some fairly decent parts this way, but other than what I have listed(and miscellaneous pieces like the turbo piping and BOVs and that type of thing)you really dont need much, I did forget the intercooler too (100 used) the piping I'll use my local muffler shop to make me some 2 1/2 or 3" piping, my goal is a ghetto rigged 14 second car, as for other things xxxeclipse can do....well, most of them are motor mods and unless your planning on doing a real rebuild its not worth going into the block, well motor mods and weight reduction

 

[XxXEcLiPsE93]

ok thanks for the tips, ill definely look into them..especially the porting of the exhaust manifold instead of geting a new header and im now thinking of going with a differnt exhaust system

But i was still wondering and would appreciate it alot if someone knew the exact 1/4 mile time and top speed of a stock 93 gs 4g63

And also i relize it is possible to break into the 15's with my car but with lightening the car weight and then the turbos and all but i still wanna know is it possible to break into the 15's without wieght reduction or turbos or engine swaps or any forced induction... and what exectly would anybody recommend to get there(parts, tuneups, etc.)

And also my friend has a second gen probe gt and he wants to race..i wanna know can i beat him?

 

[AdrenilineCrash]

if your car is a stick and his is an auto probably. hes got a v6 24v doch and youve got a 4cyl dohc 16v. theres a small difference in engine size. his car also wieghs about the same as yours. you can beat him if hes a bad driver and youre a good one.

-mike

 

[wicked93GS]

you should get 15s without a turbo if you do most of the other things listed without going turbo, but the most effective mod for the money is balance shaft removal, problem being you have to remove your timing belt and a bunch of other crap, I'm doing it because I have to do all that stuff anyway, but if you wanted to do it, replace the NT cams with turbo cams while your at it, between that and the balance shaft removal you can gain 20 HP or so(supposedly thae balance shaft frees up 15 HP for $0), then intake and exhaust another 10(we'll be conservative here) add the under drive pulley and get 10 more....40 HP in all....making it 175 total, which at that point I'd switch to slightly larger injectors....310 cc or so, with a SAFC and some timing gears you'll gain 5 HP more(conservative again) putting the total at 180, new plugs and wires might be good for 2 or 3 HP, 183 HP isnt too shabby for being NT, I think you can make it, just 7 HP less than a stock gst, and they run what? mid 15s? oh, and fill in your motor mounts so you get a better launch, another mod that doesnt cost much, get a short shifter with some solid bushings, chuck the spare tire and jack, I'm going to get rid of my A/C because it doesnt work anyway and even if it did I wouldnt want it, get rid of the pump, tubing, and condensor, I think you should be able to get 15s easily enough if your serious about ith. hmm, 183 then I could run a turbo for 5-7 psi...heh, theres my 200 whp, but anyway, I hope I helped you out a bit

 

[XxXEcLiPsE93]

Originally posted by wicked93GS
you should get 15s without a turbo if you do most of the other things listed without going turbo, but the most effective mod for the money is balance shaft removal, problem being you have to remove your timing belt and a bunch of other crap, I'm doing it because I have to do all that stuff anyway, but if you wanted to do it, replace the NT cams with turbo cams while your at it, between that and the balance shaft removal you can gain 20 HP or so(supposedly thae balance shaft frees up 15 HP for $0), then intake and exhaust another 10(we'll be conservative here) add the under drive pulley and get 10 more....40 HP in all....making it 175 total, which at that point I'd switch to slightly larger injectors....310 cc or so, with a SAFC and some timing gears you'll gain 5 HP more(conservative again) putting the total at 180, new plugs and wires might be good for 2 or 3 HP, 183 HP isnt too shabby for being NT, I think you can make it, just 7 HP less than a stock gst, and they run what? mid 15s? oh, and fill in your motor mounts so you get a better launch, another mod that doesnt cost much, get a short shifter with some solid bushings, chuck the spare tire and jack, I'm going to get rid of my A/C because it doesnt work anyway and even if it did I wouldnt want it, get rid of the pump, tubing, and condensor, I think you should be able to get 15s easily enough if your serious about ith. hmm, 183 then I could run a turbo for 5-7 psi...heh, theres my 200 whp, but anyway, I hope I helped you out a bit

OK thanks alot man ill definetly look into those things, but i gotta know...What exactly is a balance shaft and what is its purpose? And is there going to be any effect on the cars performance after removing it?

 

[XxXEcLiPsE93]

Originally posted by wicked93GS
you should get 15s without a turbo if you do most of the other things listed without going turbo, but the most effective mod for the money is balance shaft removal, problem being you have to remove your timing belt and a bunch of other crap, I'm doing it because I have to do all that stuff anyway, but if you wanted to do it, replace the NT cams with turbo cams while your at it, between that and the balance shaft removal you can gain 20 HP or so(supposedly thae balance shaft frees up 15 HP for $0), then intake and exhaust another 10(we'll be conservative here) add the under drive pulley and get 10 more....40 HP in all....making it 175 total, which at that point I'd switch to slightly larger injectors....310 cc or so, with a SAFC and some timing gears you'll gain 5 HP more(conservative again) putting the total at 180, new plugs and wires might be good for 2 or 3 HP, 183 HP isnt too shabby for being NT, I think you can make it, just 7 HP less than a stock gst, and they run what? mid 15s? oh, and fill in your motor mounts so you get a better launch, another mod that doesnt cost much, get a short shifter with some solid bushings, chuck the spare tire and jack, I'm going to get rid of my A/C because it doesnt work anyway and even if it did I wouldnt want it, get rid of the pump, tubing, and condensor, I think you should be able to get 15s easily enough if your serious about ith. hmm, 183 then I could run a turbo for 5-7 psi...heh, theres my 200 whp, but anyway, I hope I helped you out a bit

ok so i wanted to also recap all the mods that i now have planned for the car im hoping these will get me into the 15's
MODS:
injen CAI
pacesetter exhaust system
high-flow cat
porting of the exhaust manifold
balance shaft removal
replace NT cams with turbo cams
underdrive pulley
310 cc fuel injectors
SAFC
timing gears
new plugs and wires

i was also wondering if someone could tell me how much horsepower each mod will add and also if someone could tell me the price of each mod listed

if all is good ill buy these parts soon and install them as soon as i can..thanks again!

 

[wicked93GS]

a balance shaft is supposed to lessen the engines vibration, which it does to a degree, however it adds 6 pounds or so to the rotating assembly, and every pound off the rotating assembly is worth 2.5 HP or so, so you end up with around a 15 HP gain, the engine will vibrate more when you remove them I have heard, sometimes its barely noticable, and sometimes it feels like solid motor mounts, no big deal, removing the balance shafts will eliminate the possibility of the balance shaft belt snapping and taking the timing belt with it, anyway, you can do that mod(if you have the timing belt removed, which I wouldnt try unless you know what your doing,or you can get a mechanic to do it, but thats expensive, worth it if your putting in turbo cams at the same time though I guess) for the cost of a freeze plug

injen CAI-180 or so? you'll gain 5 HP or so, you may get more, but dont expect it
pacesetter exhaust-250, you may gain 5 HP if your lucky
high flow cat-universal ones sell for about 50 ,maybe 2 or 3 HP
porting exhaust manifold-100 or so to get it ported ,5-7 HP
underdrive pulley-130 or so,sometimes more, people say you gain 10-15 HP
310 cc injectors-200 or so new(I think) 5 HP
SAFC-200-300, with a good tune and the new injectors...5-8 HP
timing gears-300(150 each, you can find them for less) 3-5 HP by advancing the timing
new plugs and wires-50, 2-3 HP? , not sure on that one
lets add it all up, 66-71 HP (optimistic, probably closer to 50) and it will cost you...$1,560, add in another 300-400 in labor in replacing the timing belt(which you probably need to do anyway, they tend to go every 60k miles, its expensive, but if you do a lot of the work yourself(such as the porting) it can be a lot cheaper, its mostly things like the intake(I wouldnt pay 180 for some piping and a filter, especially one thats not even a cold air intake, just a short ram intake)speaking of intake if your going to port your exhaust manifold, port your intake too, you'll get more gains from porting it than you will porting the exhaust manifold, both together is best of course, but anyway.....