Would you suggest altering jetting for ramair

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Fatspanner #44
Posts: 113
Joined: Tue Apr 29, 2008 7:44 pm
My Bike: Triumph Daytona 675
Location: Longforgan

Would you suggest altering jetting for ramair

Post by Fatspanner #44 »

Just a question for the tuning gurus out there!!

If my bike is currently set up perfectly and I am now fitting a ram air system, will I need to alter jetting?

I am presuming not as the Ram air does not really affect things until the speed is up, but not sure confuddled
zimm
zxr400 oc member
zxr400 oc member
Posts: 2320
Joined: Tue Oct 10, 2006 12:32 am
My Bike: ZXR400-M4, ZX4, ZX6R.
Location: Herefordshire

Re: Would you suggest altering jetting for ramair

Post by zimm »

jetting will be WAY different with a ram air box .. and it depends who's system you are fitting as to where the jetting will end up.. and wether there's a filter etc etc ..

as a rough guide,

block the air jets, R1 needles and work down from 120 ish on the mains ..

really though go and get it setup on a dyno with a big fan by somemone who's done ramaired zxr400's before.

like http://dynopro-racing.co.uk/ or http://www.hobbsportracing.co.uk/
Last edited by zimm on Thu Oct 30, 2008 5:55 pm, edited 1 time in total.
zimm
zxr400 oc member
zxr400 oc member
Posts: 2320
Joined: Tue Oct 10, 2006 12:32 am
My Bike: ZXR400-M4, ZX4, ZX6R.
Location: Herefordshire

Re: Would you suggest altering jetting for ramair

Post by zimm »

oh, and the sp shock you're flogging on ebay.. isnt an sp shock.
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