lil_kano

i know a road course near my house that'll allow me to run with the tank.

as for the michellin pilots, i get 'em cheap and they are realy awsome. they are like the 2nd ebst rated tires...sport tires at least. i don't need drags.

HunterKiller89

iTrader: (1)

honestly...a 2.25 is good for around 180-230hp, and a 2.5 is good for around 230-280hp...this is assuming your going N/A or supercharged. if your going turbo, you'll want a 3" all the way back and as straight as possible. if your going turbo, id get a shop to make a custom exhaust, 3" diameter, with as few bends as possible...itll be around the same price as a prefabbed one and perform a lot better

lil_kano

ok. so whats the size of the piping on the corsa for the 2.0l engine?

im going 3" now so that i can use it for later. i know i'll have a slight power loss with it as a N/A motor but i will utilize it later. i just want o know the specs of the corsa for the 2.0l. I know it has a 4" tip.

i'm still debating on which header to get for two reasons...fitment and size. i have no clue what fits and what would be best with a 3" D/P.

wouldn't it work out good if i did the 3" D/P and the corsa for the 2.0L, which is 2.5" piping? I have no clue about what header to get. i want the most performance though, not best bang for buck. lol

alleycat58

S'up to you. Honestly I wouldn't run at a track that would allow nitrous on course. Too much of a safety issue. There's at least one near me that allows it as well, but they also allow noobs to get behind the wheel with NO instructor.

Eh, try em out. In my experience with them for auto-x and driving my friend's GTI at the road course, they're subpar to just about any other performance tire out there. But if you can get them cheap enough then give em a shot.

lil_kano

kool. there is also a drag strio there. so if i go and there are "lil kids" runnning around the track then i'll just head over to the drag strip. thanks for the heads up.

now if i can only get a good answer on my exhaust dilema. lol

ok. i think i've found the bet question to ask to get my problem cleared up....will a 3" D/P and the 2.5" corsa for the 2.0L be a good combo...power wise? if so what header would be a nice add on to the combo? or is it better to get 3" all the way back from the D/P?

Also does anyone know the specs on the hahn header?

CobaltCoupeCrazy

iTrader: (1)

The only kits that I am aware of that are this relatively easy to install are for vehicles with spin-on oil filters, which we do not have on the Cobalts. Also, yes, a lot of things aren't necessary or needed but we still want to install them on our cars!! Maybe someone wants an external oil cooler to keep the temps down (thermal break down of oil), I dunno.

HunterKiller89

iTrader: (1)

you definitely dont want to go from a 3-->2.5...if anything, you'd want to go 2.5-->3

are you planning on turboing, supercharging, or making a N/A build? also, what kind of HP goal do you have in mind once your done modding

lil_kano

for now im going with just a 75shot N2O. but later after building the motor as I stated above. then bump up to a second stage n2o kit. for a total of 150 shot. then later if they've tuned the tranny then i'll think about turbocharching. so for now i jsut want to build the motor. i kno i'll more than likely lose power on the stock motor, but it'll blow alot of stuff away with the n2o. i wanted the corsa mainly for sound but the 2.5" is killing me. caz i wanted to get the 3" D/P and im still undicided about a good header. thanks for the info hunter.

HunterKiller89

iTrader: (1)

the reasoni ask is because if you go with a turbo setup down the road, you'll be replacing your header/downpipe anyway, so buying an aftermarket one would be a waste of money. but if your going for a n2o build with FI plans later, i'd go for a supercharger since you'd be able to keep your header/DP with a SC setup. im not sure how big the vibrant header/DP combo is, but ive heard a lot of good things on their 4-2-1 header/DP combo....so if they make one in 2.5", i'd get it.

lil_kano

ok. if i were to get a turbo setup later on after i do internals would do a rear mount setup like the STS kit. Like i said that would only be if they release tranny and ECM tunning for our cars. like i said im no too worried about losing power by going with a 3" application as long as i'll be able utilize it with my nitrous. Keep in mind that i'll only be runnign a 75 shot...may a lil bigger after i take it to a dyno and see if i can do a little tweeking with diff jet sizes. but after i build the engine then i will do a 2 stage setup....and i'm pretty sure i'll be able to utilize the 3" then. thanks for the help hunter.

Whats a comprable 3" exhaust, sound wise, to the corsa?....i just don't want to sound totaly ricey. lol.

lil_kano

ok. my origional question still wasn't answered. is there a way to put an oil cooler on the cobalt? if so, how?

HunterKiller89

iTrader: (1)

our answer is there is zero need until you reach around 500HP....if your looking for parts to bulletproof, get some water wetter for the radiator, and get a transmission cooler

lil_kano

yeah tranny cooler im getting for sure. whats this wetter for the radiator? is an automated thing and do i have to refill everytime?

HunterKiller89

iTrader: (1)

water wetter just breaks down the water in your radiator so it can transfer heat better. its like $10 and you only needa to refill if you flush your radiator

lil_kano

ok. do you have a link to one installed or explain it more idepth to me, please? i'm not a noobe, so i'll understand. i just don't know what it is exactly that your talking about. thanks.