4-2-1 or 4-1 header? any difference in HP?

[namoR]

isnt there alot of fabrication with turboing a gs or rs cause im thinking of doin that myself. but dont i have to change to lower compression pistons and such.

[hellah fresh]

Originally Posted by namoR

isnt there alot of fabrication with turboing a gs or rs cause im thinking of doin that myself. but dont i have to change to lower compression pistons and such.

Well fabrication... yes a little bit hard and thats if you don't know what your doing. But you can buy yourself a turbo kit from hahns racecraft or star. But its better off buying the parts 1 at a time because that will save you alot of money. You can make yourself a good turbo kit for under $1000. if you wanted to. But as of right now im going all motor first.

[FourG63 97GST]

anyway If I was to get a header it would 4-2-1
the design draws the gas out of the motor better.
my 2 cents

[---]

Buying the header if you plan on putting a turbo on later is a waste. You'll have to get rid of the header for the turbo.

[hellah fresh]

i can always sell the headers. =)

[gthompson97]

hey hellah....does that 54mm throttle body make any difference performance wise?

[hellah fresh]

Originally Posted by gthompson97

hey hellah....does that 54mm throttle body make any difference performance wise?

Yes it does help out a bit. It helps out on the mid-hi range rpm. I can feel a little pull. When i take off my car pulls a little but after it hits the 5-6k rpm you can really feel it. Also what i heard that helps and get high gains was the 60mm throttle by www.modernperformence.com But yes that 54mm helps. I got mine done from ebay for $40 dollars. You have take your old one out and send it in to them go get it bore out. The ebay id was conceptillusions. They did the work for me and also free powder coat form 6 different colors to choose from. But about that modern performence throttle... i heard alot of great reviews in dsmtuners.com. Everyone that bought the throttle said it pulls and it cost around $220 and for a better gain bore out your intake manifold to match the 60mm.

[hellah fresh]

its http://www.modernperformance.com/

[drewh4386]

Next on mod list.......after the turbo of course.

[Legionofone]

ok i have raced a manual GS eclipse... this is the rundown... my car... 1998 chrysler cirrus LXi V-6 auto... the power of my car is that i got aprox 180 horses now... so about 150ish to the wheels threw the tranny... ok but the power of my car is the first gear... (this little intro is leading up to something) it can beat any car off the line... and slam ur bawlz to the seat... now... i raced that eclipse with 140 HP and maby 120 to the wheels... and about 400 pounds less... now... i owned this eclipse off the line because of my great first gear but past that it sucks... he slowly gained on me and i lost the race because yalls car has much better top end... ANYWAY... go with the low end torque and u will win more races... if u stay in the right power bands... u will kill everything... also check were ur car makes the most HP/torque... when ur launching... shift from first and the highest torque... when u shift to 3rd go for somewere right in the middle and when u hit 4th-5th go for ur highest HP! will get the cleanest most powerful launch and will increase ur get up and go buy a ton... remember after that max HP/torque... ur loosing the power band GO FOR MORE TORQUE!

[hellah fresh]

Soo 4-2-1 right? because all the cars i seen... all the websites like nopi.com and summit racing all i see are 4-2-1 headers. So im guessing the 4-2-1 will help out on torque so yeah thats my final choice. How did that Gs creep up on you? you know what mods he have? so mid shift on 3rd like around 5-6k? Well heres my setup ill give you the run down: 2 piece C.I.A. ebay, 2.25 piping, 5" 2.25 muffler, no catalytic converter just a 2.25 resinatior to take its place, 54mm throttle, F & R strut, R lower tie rod all Megan. So sound good so far?? ao all i need now is my Headers and sway bars and im done with stage 1.

[drewh4386]

Originally Posted by Legionofone

he slowly gained on me and i lost the race because yalls car has much better top end

which is why I suggested a 4-1. The eclipse is going to suck of the line if its not a gst or gsx. Mainly a gsx. I had both a 4-2-1 and 4-1 and it still sucks off the line.

The realist quote from the movie was ....."it doesn't matter if you win by an inch or a mile, winning is winning.."

When racing, you are gonna be at full throttle most of the time. And I hope you don't race between 1k and 4k rpms...
Since you are street racing (or are you really drag racing?) your car is going to be always moving.....so when you recover off the line, torque is really not that big of deal. (it is, but not really) Hp is. Now dragging is a different story.

edit>
I say this because my friend has a sunfire gt that pulls away from me off the line like i'm walkilng. But as said I always get him in the strecth.

[---]

Originally Posted by drewh4386

which is why I suggested a 4-1. The eclipse is going to suck of the line if its not a gst or gsx. Mainly a gsx. I had both a 4-2-1 and 4-1 and it still sucks off the line.

The realist quote from the movie was ....."it doesn't matter if you win by an inch or a mile, winning is winning.."

When racing, you are gonna be at full throttle most of the time. And I hope you don't race between 1k and 4k rpms...
Since you are street racing (or are you really drag racing?) your car is going to be always moving.....so when you recover off the line, torque is really not that big of deal. (it is, but not really) Hp is. Now dragging is a different story.

edit>
I say this because my friend has a sunfire gt that pulls away from me off the line like i'm walkilng. But as said I always get him in the strecth.

How could you quote such a shitty movie? :/

Torque is a pretty big deal actually. I raced an Integra with header and exhaust, which gives him about 10 more hp and maybe 5 more lb ft of torque. So he has 10 hp over me, but Honda/Acura motors suck so bad in the torque department that I beat him by a couple of cars. Torque is a not a nonfactor.

[drewh4386]

intergras are lighter also. And yes that was a qoute was from the movie, but it applies to everything.

and like i said if you a grandma and race between 1-4k rpms THEN YOU NEED TORQUE!!

put like this.

peak torque at a higher rpm will give you more horse power. your car moving is horsepower. Your engine can make torque in netural.

[l_eclipse_l]

Originally Posted by drewh4386

intergras are lighter also. And yes that was a qoute was from the movie, but it applies to everything.

and like i said if you a grandma and race between 1-4k rpms THEN YOU NEED TORQUE!!

Well a lot of times what happens when I end up racing someone is when you are rolling at like 30-40 mph and then take off, you need that torque to get you to the higher rpms. Racing is not always off the line. Go with the 4-2-1 and disregard anyone saying that you shouldn't worry about torque. Torque and hp are nearly equally important, with a slight edge to hp on our cars. Always strive for more hp, but when you can pick up the torque, don't hesitate. Just look at any of the old muscle cars, a good majority of them have more torque than hp, and they are fast as hell. Just need a few more gears....