Omega Owners Forum

Trading Area => Car Parts, bits For Sale & Wanted => Topic started by: 2.5v6 on 25 December 2015, 16:27:52

Title: Short intake plemiun pipes wanted: admin please move
Post by: 2.5v6 on 25 December 2015, 16:27:52
Merry Xmas all, am in need of the short intake pipes as have fitted 3.0 cams into a 2.5, I already have the 3.0 plenum but someone forgot to post the pipes with it :-X, need the ones where it fits into the ICV valve. Please no silly prices !!!
Now back to the festive drinking Ho Ho Ho !!!
Title: Re: Short intake plemiun pipes wanted: admin please move
Post by: sjc on 26 December 2015, 14:41:18
So do you have the long or short 3.0 plenum?
Title: Re: Short intake plemiun pipes wanted: admin please move
Post by: 05omegav6 on 26 December 2015, 15:35:41
So do you have the long or short 3.0 plenum?
Way I read it...

Op has long plenum but needs the short pipes to match...
Title: Re: Short intake plemiun pipes wanted: admin please move
Post by: sjc on 27 December 2015, 22:27:15
So do you have the long or short 3.0 plenum?
Way I read it...

Op has long plenum but needs the short pipes to match...

Yeah, that was my "if I had to guess" option, but since it was posted on Xmas day, I wondered if some sherry had been consumed  ;D

I have a set of the long pipes which are probably not what's needed.

Out of interest.. is there any benefit using the 3.0 long plenum on a 2.5 (even one with 3.0 cams and divider)?
Title: Re: Short intake plemiun pipes wanted: admin please move
Post by: 05omegav6 on 27 December 2015, 22:40:53
Gives a smoother airflow into the plenum at a guess, which is a good thing...
Title: Re: Short intake plemiun pipes wanted: admin please move
Post by: 05omegav6 on 27 December 2015, 22:41:53
Gives a smoother airflow into the plenum at a guess, which is a good thing...
It does however require the longer throttle cable to be fitted as well...
Title: Re: Short intake plemiun pipes wanted: admin please move
Post by: TheBoy on 28 December 2015, 09:52:51
Out of interest.. is there any benefit using the 3.0 long plenum on a 2.5 (even one with 3.0 cams and divider)?
No, stick with the short plenum, which is better tuned to 2.5. Long plenum better tuned for 3.0/3.2,
Title: Re: Short intake plemiun pipes wanted: admin please move
Post by: sjc on 28 December 2015, 10:01:15
Out of interest.. is there any benefit using the 3.0 long plenum on a 2.5 (even one with 3.0 cams and divider)?
No, stick with the short plenum, which is better tuned to 2.5. Long plenum better tuned for 3.0/3.2,

Yeah, my understanding was that the plenum was extended to improve low rev torque on the 3.0 and that the 2.5 doesn't have that issue.

I'd expect putting the long plenum on a 2.5 would effect top end.