Which VF SS OTR CAI is best ?

[Maz]

Has anyone on here tried GM Motorsports new RAMJET 3?
http://www.gmmotorsport.com.au/products/***NEW***-Ramjet-3-Suit-VF-MAF.html

 

[VinnieLS3]

Vinnie is the vcm infill panel made of the same type of plastic as the Otr? Did you use the metal spacer provided so the infill is not squashed by the bolt?

Hey Mike, yes pretty sure it's the same plastic as otr and looks quite similar to the infill plastic used by Harrop. I believe the shop did use metal spacer but will need to check next time I'm under the bonnet.

 

[Mike__]

Thanks

 

[426Cuda]

Has anyone on here tried GM Motorsports new RAMJET 3?
http://www.gmmotorsport.com.au/products/***NEW***-Ramjet-3-Suit-VF-MAF.html

Looks good. Easy filter access is a plus.

 

[TTubrag]

Ron,
Re: the criteria for ‘Airflow/ performance’, my limited experience with less restrictive filters and motorbike tunes, combined with amateur enthusiast research tells me that if I’m looking for best bang for buck performance improvement in the LS3 without significant bolt-on changes, the value is in the tune (tuned for 98 octane or flex fuel if available).

There’s some pretty interesting threads/ comparisons/ methodical research on the SS Forums about CAI’s. Not specifically for OTR CAI’s that I’ve come across yet, but principles will be similar (and relative) I assume.
Needless to say, manufacturer claims of HP increases by bolting on a CAI alone are difficult to substantiate and often don’t eventuate by those who test the claims.
Those who notice seat-of-the-pants improvements from bolting on a CAI, that are ACTUALLY airflow performance improvements and not largely just placebo aural improvements, have also had a tune done... which represents the bulk of the measurable performance improvement.

I’m happy to be corrected by those who know much more than I do, but I get the impression that the stock intake on the LS3 Redline breathes very well for everyday use + some.
Additionally, the upsides of changing the air intake come with downsides that may negatively impact performance, which you’d want to be aware of and comfortable with.

That being the case, if value for money is a criteria, a CAI is better suited as a precursor to further bolt-on upgrades like cam, exhaust, forced induction. Or if you just like the look and sound of one (which still tempts me TBH).

Can anyone add to that? I’m keen to learn what I don’t know.

 

[Ron Burgundy]

Ron,
Re: the criteria for ‘Airflow/ performance’, my limited experience with less restrictive filters and motorbike tunes, combined with amateur enthusiast research tells me that if I’m looking for best bang for buck performance improvement in the LS3 without significant bolt-on changes, the value is in the tune (tuned for 98 octane or flex fuel if available).

There’s some pretty interesting threads/ comparisons/ methodical research on the SS Forums about CAI’s. Not specifically for OTR CAI’s that I’ve come across yet, but principles will be similar (and relative) I assume.
Needless to say, manufacturer claims of HP increases by bolting on a CAI alone are difficult to substantiate and often don’t eventuate by those who test the claims.
Those who notice seat-of-the-pants improvements from bolting on a CAI, that are ACTUALLY airflow performance improvements and not largely just placebo aural improvements, have also had a tune done... which represents the bulk of the measurable performance improvement.

I’m happy to be corrected by those who know much more than I do, but I get the impression that the stock intake on the LS3 Redline breathes very well for everyday use + some.
Additionally, the upsides of changing the air intake come with downsides that may negatively impact performance, which you’d want to be aware of and comfortable with.

That being the case, if value for money is a criteria, a CAI is better suited as a precursor to further bolt-on upgrades like cam, exhaust, forced induction. Or if you just like the look and sound of one (which still tempts me TBH).

Can anyone add to that? I’m keen to learn what I don’t know.

Totally agree. Tune is a must for any real and noticable gain. I am just deciding which cai to use with the tune

 

[TTubrag]

Totally agree. Tune is a must for any real and noticable gain. I am just deciding which cai to use with the tune

Will follow your progress with interest mate.

 

[Ron Burgundy]

What power gain is expected on Ls3 with otr cai and tune ? Is 50kw realistic ?

 

[Mike__]

Steve at oztrack quoted me 30rwkw. Car runs well. Plenty of before and after posts in various threads on here

 

[Ron Burgundy]

Did not come across this one before