JDM Sti 8 - Any downside to fitting unequal length headers?
21 December 2006, 09:15 PM
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JDM Sti 8 - Any downside to fitting unequal length headers?
Are there any performance losses to fitting unequal length headers etc,? Or is it a good idea keeping the "rally car" noise that I have got at the moment?
21 December 2006, 09:27 PM
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Originally Posted by Multijfj
Are there any performance losses to fitting unequal length headers etc,? Or is it a good idea keeping the "rally car" noise that I have got at the moment?
21 December 2006, 09:43 PM
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Originally Posted by Multijfj
Are there any performance losses to fitting unequal length headers etc,? Or is it a good idea keeping the "rally car" noise that I have got at the moment?
1: Twin scroll turbo
2. Equal length headers
If you want to fit anything to your car, fit things that will make it faster, not slower!! Go to Powerstation and have their JDM upgrade package which will give you around 340-350bhp and similar torque. (remap & Milltek exhaust)
21 December 2006, 11:26 PM
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Put it this way, uk sti's need to change their headers to get anywhere near the sort of power a JDM car can push, and even then the torque just isnt near it.
Change to unequal length and you will loose serious power (plus you will need to remap etc) so you may as well have just bought a uk car.
Tony
Change to unequal length and you will loose serious power (plus you will need to remap etc) so you may as well have just bought a uk car.
Tony
22 December 2006, 08:57 AM
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Originally Posted by GREGGYG
Massive downside!!! Equal length headers are the envy of many UK car owners, because the equal lengths give a far better gas flow than the unequal length. Forget noise, it's quality and performance on the road that counts. If you want to lose power and torque, then fit them. People buy JDM STI's mainly for 2 things which are superior to the UK cars:
1: Twin scroll turbo
2. Equal length headers
If you want to fit anything to your car, fit things that will make it faster, not slower!! Go to Powerstation and have their JDM upgrade package which will give you around 340-350bhp and similar torque. (remap & Milltek exhaust)
1: Twin scroll turbo
2. Equal length headers
If you want to fit anything to your car, fit things that will make it faster, not slower!! Go to Powerstation and have their JDM upgrade package which will give you around 340-350bhp and similar torque. (remap & Milltek exhaust)
22 December 2006, 10:03 AM
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Originally Posted by GREGGYG
Massive downside!!! Equal length headers are the envy of many UK car owners, because the equal lengths give a far better gas flow than the unequal length. Forget noise, it's quality and performance on the road that counts. If you want to lose power and torque, then fit them. People buy JDM STI's mainly for 2 things which are superior to the UK cars:
1: Twin scroll turbo
2. Equal length headers
If you want to fit anything to your car, fit things that will make it faster, not slower!! Go to Powerstation and have their JDM upgrade package which will give you around 340-350bhp and similar torque. (remap & Milltek exhaust)
1: Twin scroll turbo
2. Equal length headers
If you want to fit anything to your car, fit things that will make it faster, not slower!! Go to Powerstation and have their JDM upgrade package which will give you around 340-350bhp and similar torque. (remap & Milltek exhaust)
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23 December 2006, 06:49 PM
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Turns out they will stay equal then lol -
I have already got a nice exhaust so thats a bonus, and a remap, which I am running at 330bhp with, the new year brings full decat and another remap, with a hope of 340 odd
I have already got a nice exhaust so thats a bonus, and a remap, which I am running at 330bhp with, the new year brings full decat and another remap, with a hope of 340 odd
23 December 2006, 07:07 PM
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Originally Posted by MartynJ
Only if they are of a poor quality...Try Lateral , Zen or RCM ones...I believe they all come from the same manufacturer...Excellent quality and have only ever seen gains in both power and torque......
23 December 2006, 08:45 PM
#10
Remember....
The twin scroll turbo and equal length headers from a standard Jap Newage are a package and work extremely well together for that given power level.
It's horses for courses and dependant on application (and what is required) when spec'ing different combinations.
Stating Equal or Unequal length headers are the best in isolation is not conducive imho, unless you have specific power / driveability remit.
Regarding medeocre power levels (say up to 400bhp) on a JDM Newage, then you would be wasting money changing the standard twin scroll / equal length configuration (but of course you can look at hybrid twin scroll turbo's).
The twin scroll turbo and equal length headers from a standard Jap Newage are a package and work extremely well together for that given power level.
It's horses for courses and dependant on application (and what is required) when spec'ing different combinations.
Stating Equal or Unequal length headers are the best in isolation is not conducive imho, unless you have specific power / driveability remit.
Regarding medeocre power levels (say up to 400bhp) on a JDM Newage, then you would be wasting money changing the standard twin scroll / equal length configuration (but of course you can look at hybrid twin scroll turbo's).
23 December 2006, 08:52 PM
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Originally Posted by webmaster
Regarding medeocre power levels (say up to 400bhp) on a JDM Newage, then you would be wasting money changing the standard twin scroll / equal length configuration (but of course you can look at hybrid twin scroll turbo's).
24 December 2006, 08:54 PM
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Originally Posted by webmaster
lol
I know mate, but unfortunately 400bhp is nothing major now.
I know mate, but unfortunately 400bhp is nothing major now.
Ah well, quick enough for me, unless Santa comes in the form of Andy F, with a new turbo in hand !
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