Tubular header people
#1
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Tubular header people
Just wondering what differences you saw / felt to the car after fitting. what was affected, power, spool up, noise, etc?
Gas anyone felt like or knowingly lost spool up running a big header system on a vf/td05 16/18g? also what turbo are you running with your headers?
ta
jon
Gas anyone felt like or knowingly lost spool up running a big header system on a vf/td05 16/18g? also what turbo are you running with your headers?
ta
jon
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Hi Jon,
sadly mine went on with a bigger turbo... but they are supposed to give better mid-range and top-end performance. Especially with a bigger turbo, on the std. item they can negatively affect spool-up. Mine sounds louder and different.
Try the last 5 seconds....
wyioc2.flv video by Stevo_210 - Photobucket
IMHO
dunx
sadly mine went on with a bigger turbo... but they are supposed to give better mid-range and top-end performance. Especially with a bigger turbo, on the std. item they can negatively affect spool-up. Mine sounds louder and different.
Try the last 5 seconds....
wyioc2.flv video by Stevo_210 - Photobucket
IMHO
dunx
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I have RCM headers fitted to mine, there was no difference in spool, but midrange and top end power/torque was definately improved on, the sound on full boost is a loud howl similar to late JDM twins scroll cars
#7
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i fitted magnex headers on my vf34'd classic last week and on boost it is alot louder as the turbo sucks in air...... either that or ive got a leak somewhere
Getting a new map done so hopefully show decent gains over 289bhp an 270lbs torque, not too bothered about loosing out a little bottom end
Getting a new map done so hopefully show decent gains over 289bhp an 270lbs torque, not too bothered about loosing out a little bottom end
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#8
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I have tubular headers fitted, i found the sound was abit raspier around the header area, i guess it could be down to lack of heat sheilds muffling the noise, but found spool about the same, but abit more grunt an pulled harder when turbo kicked in
#9
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wondered the same myself jon, thinking about headers next also,..
..also read in a mag a couple of weeks ago about andy forrest fitting new headers and standard up pipe with the standard up pipe giving increased spool up over a larger bore up pipe.
dan
..also read in a mag a couple of weeks ago about andy forrest fitting new headers and standard up pipe with the standard up pipe giving increased spool up over a larger bore up pipe.
dan
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Hi Jon,
sadly mine went on with a bigger turbo... but they are supposed to give better mid-range and top-end performance. Especially with a bigger turbo, on the std. item they can negatively affect spool-up. Mine sounds louder and different.
Try the last 5 seconds....
wyioc2.flv video by Stevo_210 - Photobucket
IMHO
dunx
sadly mine went on with a bigger turbo... but they are supposed to give better mid-range and top-end performance. Especially with a bigger turbo, on the std. item they can negatively affect spool-up. Mine sounds louder and different.
Try the last 5 seconds....
wyioc2.flv video by Stevo_210 - Photobucket
IMHO
dunx
chav valve you running dude? forge?
#13
lost 15bhp and gained 40lbft after fitting scoobyclinic headers and up-pipe, although that was after Andy F mapped it. The previous map was done on rollers and done purely to produce as much hp as possible, it drove pants on the road!
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I used Harvey smith ported o/e headers & matched up pipe with my 20g. As harvey said up to 400bhp there the dog's dangly bit's he was right. I felt the improvement straight away much better spool aprox 500rpm early'r. I then fitted a 2.5 & now next to no lag well pleased a car you can corner with on the right foot.
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