MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: Homer on September 13, 2013, 04:50:16 pm

Title: Does upgraded intake reduce lower end torque?
Post by: Homer on September 13, 2013, 04:50:16 pm: A few posters have said they prefer their original intake and have reverted back as the new intake was reducing lower end torque. How many of you have experienced this?

For those who have changed their intake- did you prefer your old one or new one?
Title: Re: Does upgraded intake reduce lower end torque?
Post by: flashp on September 13, 2013, 05:03:52 pm: Popular opinion seems to be yes, they do. But....it seems to be that intakes are of use higher up in the rev range, but may offer less benefit under normal driving circumstances. I'm ready to be corrected!
I'm about to have a Revo fitted along with all the other required hardware for stage 2 so I guess I'll find out soon enough. I have track days in mind for mine.

What I have read recently seems to indicate that there can be fuel delivery issues in as much that on some cars when stage 1 mapped the pump can't necessarily deliver what the ECU asks for, particularly in mid range. Changing the fuel pump deals with this and helps release some more power and probably smooths out delivery I would imagine. I think if I were to settle at stage 1 I might buy an uprated pump of one brand or another instead of an intake.
Title: Re: Does upgraded intake reduce lower end torque?
Post by: MC71 on September 13, 2013, 06:05:07 pm: ^^^^ Completely agree re intakes and HPFP. I believe an uprated HPFP will even benefit a stock car.

I'm having the new REVO CAI fitted next week as well before going Stage 2, it certainly looks the business.
Title: Re: Does upgraded intake reduce lower end torque?
Post by: Scottymon on September 13, 2013, 08:12:14 pm: I found it less torquey on the bum dyno with a CAI, but as said above doesn't breathe as well top end; for me personally I wanted the extra torque low down so switched back, if your tracking it regularly, then an intake will defo improve things, otherwise keep it standard. :happy2:
Title: Re: Does upgraded intake reduce lower end torque?
Post by: flashp on September 13, 2013, 08:20:05 pm: Anyone got any dyno plots that could be posted here??
Title: Re: Does upgraded intake reduce lower end torque?
Post by: Joesoap on September 13, 2013, 09:06:58 pm: Great topic ...more reply's plz
Title: Re: Does upgraded intake reduce lower end torque?
Post by: cuprajake on September 13, 2013, 09:16:43 pm: I suppose if your fitting one to a stock car then you'll notice it but most fit one coupled with a remap, so the result is more torque anyways.
Title: Re: Does upgraded intake reduce lower end torque?
Post by: berg on September 13, 2013, 10:26:52 pm: Quote from: cuprajake on September 13, 2013, 09:16:43 pm
I suppose if your fitting one to a stock car then you'll notice it but most fit one coupled with a remap, so the result is more torque anyways.

stg1 with an intake is a lot more aggressive than without, especially on cold, winter days
Title: Re: Does upgraded intake reduce lower end torque?
Post by: Homer on September 14, 2013, 12:29:10 am: So can you put an intake on when on a stage one without any other mods and it runs well? I thought you would have to put a downpipe on if you put on an intake?
Title: Re: Does upgraded intake reduce lower end torque?
Post by: JackG on September 14, 2013, 12:39:57 am: as soon as I took my itg off the car was flat...turbo lag now does exist.
id disagree...100% felt stronger with the intake on
Title: Re: Does upgraded intake reduce lower end torque?
Post by: rich83 on September 14, 2013, 01:05:29 am: Rough overlay of pre and post intake!

(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Frich%2Fimg%2F289-311%2520RR.jpg&hash=01d2189a6d77afbc9f628045fd6fac2b29fd5d7c)
Title: Re: Does upgraded intake reduce lower end torque?
Post by: keano on September 14, 2013, 06:40:13 am: Quote from: richwig83 on September 14, 2013, 01:05:29 am
Rough overlay of pre and post intake!

(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Frich%2Fimg%2F289-311%2520RR.jpg&hash=01d2189a6d77afbc9f628045fd6fac2b29fd5d7c)

289? I thought you had an edition30 Rich? :grin: :signLOL: :evilgrin:
Title: Re: Does upgraded intake reduce lower end torque?
Post by: rich83 on September 14, 2013, 09:23:37 am: I do... It's 311.... Read the small print! :P
Title: Re: Does upgraded intake reduce lower end torque?
Post by: Homer on September 14, 2013, 11:31:05 am: Sorry folks I never really get these charts and have avoided asking till now- what are the diff lines representing? Sorry for noob type question but would like to understand these charts. Thanks
Title: Re: Does upgraded intake reduce lower end torque?
Post by: rich83 on September 14, 2013, 11:53:22 am: The 4 darker lines are from a RR at R-tech... the faint lines behind are from Surrey Rolling Road day.
Title: Re: Does upgraded intake reduce lower end torque?
Post by: Scottymon on September 14, 2013, 12:56:58 pm: Different RR's on different days...
Title: Re: Does upgraded intake reduce lower end torque?
Post by: Homer on September 14, 2013, 06:11:36 pm: But what lines are per intake and what ones are post intake? Thanks
Title: Re: Does upgraded intake reduce lower end torque?
Post by: rich83 on September 14, 2013, 06:20:19 pm: Light pre. Dark post. Ignore the lower pair of dark lines.