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05-17-2005, 11:54 PM | #31 | ||
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Re: Re: Re: 4-2-1 or 4-1 header? any difference in HP?
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05-18-2005, 12:24 AM | #32 | ||
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Re: 4-2-1 or 4-1 header? any difference in HP?
I just thought I would copy and paste this. It depends on what you want. Lower or higher tq.
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05-18-2005, 12:33 AM | #33 | ||
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Re: Re: Re: 4-2-1 or 4-1 header? any difference in HP?
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Well as of American muscle cars they hve hi end HP. My Friend raced a 69 Camero with his 90 Teg basic mods. He took the camero off line... but after awhile the camero caught up and that was it. But now im 50/50 with the headers now. I looked at some Greddy headers on Nopi.com and they made a 4-1 design. So that got me thinking... And Greddy do have a pretty good reputation behind all thier products. So Im thinking Greddy over DC Sports.??? Greddy 4-1 Vs DC Sports 4-2-1. So now i dont know. Im not going to buy those brands but im back to 50/50 now =\
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1996 Mitsubishi Eclipse RS -Red ****UPDATE**** My car is no more! R.I.P. 12/12/05 Mods: 420a DOHC equipped with: bored 54mm throttle, 2.5" cold air intake, 2.5 chrome headers, 2.5 Down Pipe, 2.5 resinator, 5" 2.5 flared muffler, 2.5 custom piping, Megan front & rear strut, Megan rear lower tie rod, Monroe Shocks, Aerospeed coilovers Rollers: 18" TSW Throphy / Pirelli P7000 225/40/18 |
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05-18-2005, 12:43 AM | #34 | |
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Re: 4-2-1 or 4-1 header? any difference in HP?
Hey drewh4386 Thats a good way of putting it! Good Job now i know what i want 100% for sure. So 4-1 it is. I always knew cars that shift later then other cars will eventually catch up with the car with more torque. So now i have my mind set. 4-1 it is Baby! Thanks alot man for the good infomation.
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1996 Mitsubishi Eclipse RS -Red ****UPDATE**** My car is no more! R.I.P. 12/12/05 Mods: 420a DOHC equipped with: bored 54mm throttle, 2.5" cold air intake, 2.5 chrome headers, 2.5 Down Pipe, 2.5 resinator, 5" 2.5 flared muffler, 2.5 custom piping, Megan front & rear strut, Megan rear lower tie rod, Monroe Shocks, Aerospeed coilovers Rollers: 18" TSW Throphy / Pirelli P7000 225/40/18 |
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05-18-2005, 12:16 PM | #35 | |
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Re: 4-2-1 or 4-1 header? any difference in HP?
lol! yeah I just thought I'd let everybody know (who didn't know that hp is measured off of tq*rpm / 5252. SOme people in here were saying it like they were 2 different tweakers that can be seperately be gained and lost. BUt like I said it all depends on what you want to do.
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06-04-2005, 02:14 PM | #36 | |
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Re: 4-2-1 or 4-1 header? any difference in HP?
Hey one last question!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Ok im changing up my piping to 2.5 SOooo what i want to know is should i get 4-2-1 to make up for my loss torque scince im going 2.5 with no CAT? Basically its going to be down pipe to Straight 2.5 with no cat.
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1996 Mitsubishi Eclipse RS -Red ****UPDATE**** My car is no more! R.I.P. 12/12/05 Mods: 420a DOHC equipped with: bored 54mm throttle, 2.5" cold air intake, 2.5 chrome headers, 2.5 Down Pipe, 2.5 resinator, 5" 2.5 flared muffler, 2.5 custom piping, Megan front & rear strut, Megan rear lower tie rod, Monroe Shocks, Aerospeed coilovers Rollers: 18" TSW Throphy / Pirelli P7000 225/40/18 |
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06-04-2005, 03:00 PM | #37 | |
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Re: 4-2-1 or 4-1 header? any difference in HP?
I would guess so because you lose a little back pressure with everything straight through.
which equals loss of power in a N/A.
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06-05-2005, 04:55 AM | #38 | ||
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Re: Re: 4-2-1 or 4-1 header? any difference in HP?
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Ok so still 4-1 or 4-2-1? let me know because im going to buy it off ebay today which is sunday.
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1996 Mitsubishi Eclipse RS -Red ****UPDATE**** My car is no more! R.I.P. 12/12/05 Mods: 420a DOHC equipped with: bored 54mm throttle, 2.5" cold air intake, 2.5 chrome headers, 2.5 Down Pipe, 2.5 resinator, 5" 2.5 flared muffler, 2.5 custom piping, Megan front & rear strut, Megan rear lower tie rod, Monroe Shocks, Aerospeed coilovers Rollers: 18" TSW Throphy / Pirelli P7000 225/40/18 |
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06-05-2005, 05:10 AM | #39 | |
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Re: 4-2-1 or 4-1 header? any difference in HP?
if you are look for lower torque/hp get the 4-2-1 because with a bigger straight thru pipe you will lose alot with the same set-up with 4-1. But not enough to lose stock hp/tq. or at least that is what i felt racing.
After experimenting..... I had a 4-1 with no cat. It was a bit noticeable with stock piping. The exhaust pressure is not going to have much to pressure against. Thus creating power loss. Too much pressure will create power loss also. I'll put it like this....when I'm (dangerously) speeding down the high with a friends, (160hp. all his is in the low end) when i'm in the upper rpms, he is no match. Makes me wish I had a turbo.
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06-05-2005, 02:25 PM | #40 | |
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Re: 4-2-1 or 4-1 header? any difference in HP?
i see that you have a 4-1 header on yours. What is i get a 2.5 magna flow cat? should that help out or no CAT is better? haha ok if you where me and is going to do 2.5 a 4-1 is the way to go for that set up?
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1996 Mitsubishi Eclipse RS -Red ****UPDATE**** My car is no more! R.I.P. 12/12/05 Mods: 420a DOHC equipped with: bored 54mm throttle, 2.5" cold air intake, 2.5 chrome headers, 2.5 Down Pipe, 2.5 resinator, 5" 2.5 flared muffler, 2.5 custom piping, Megan front & rear strut, Megan rear lower tie rod, Monroe Shocks, Aerospeed coilovers Rollers: 18" TSW Throphy / Pirelli P7000 225/40/18 |
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06-06-2005, 03:45 PM | #41 | |
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Re: 4-2-1 or 4-1 header? any difference in HP?
Me i have 2.25. I'm saving 2.5 for the turbo.
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06-06-2005, 04:20 PM | #42 | ||
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Re: Re: 4-2-1 or 4-1 header? any difference in HP?
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1996 Mitsubishi Eclipse RS -Red ****UPDATE**** My car is no more! R.I.P. 12/12/05 Mods: 420a DOHC equipped with: bored 54mm throttle, 2.5" cold air intake, 2.5 chrome headers, 2.5 Down Pipe, 2.5 resinator, 5" 2.5 flared muffler, 2.5 custom piping, Megan front & rear strut, Megan rear lower tie rod, Monroe Shocks, Aerospeed coilovers Rollers: 18" TSW Throphy / Pirelli P7000 225/40/18 |
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06-06-2005, 05:07 PM | #43 | |
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Re: 4-2-1 or 4-1 header? any difference in HP?
2.5 is better.
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06-06-2005, 09:37 PM | #44 | |
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Re: 4-2-1 or 4-1 header? any difference in HP?
haha cool my nizzle thats what im doing. 2.5 DP with 2.5 piping with no cat. But i hope i dont lose hp tho =\
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1996 Mitsubishi Eclipse RS -Red ****UPDATE**** My car is no more! R.I.P. 12/12/05 Mods: 420a DOHC equipped with: bored 54mm throttle, 2.5" cold air intake, 2.5 chrome headers, 2.5 Down Pipe, 2.5 resinator, 5" 2.5 flared muffler, 2.5 custom piping, Megan front & rear strut, Megan rear lower tie rod, Monroe Shocks, Aerospeed coilovers Rollers: 18" TSW Throphy / Pirelli P7000 225/40/18 |
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09-29-2015, 09:05 AM | #45 | |
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Re: 4-2-1 or 4-1 header? any difference in HP?
I have been reading about headers for awhile and noticed that 4-1 headers give u a little extra tork during take off which can help u during drag races. Well on the other hand 4-2-1 headers help u during speeding in other words its good for long distance races.
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