2.93 blower pulley upgrade advice needed Please !!

[UK 2003 COBRA]

I want to add a few more HP to my engine,so I have got a 2.93 pulley/75" belt for the blower and a Diablo Predator Tuner.
Is it just installing the pulley and new belt,then plugging the tuner in and selecting the appropriate tune?
Or does the engine need the fuel/air mixture re-calibrated ??
Any advise gladly received thanks

[wickedcobra]

I get it Dyno tuned, so yes the air/fuel mixture should be adjusted.

[BurnTire]

I get it Dyno tuned, so yes the air/fuel mixture should be adjusted. I doubt there are many cobra tuners in england.

[BurnTire]

I want to add a few more HP to my engine,so I have got a 2.93 pulley/75" belt for the blower and a Diablo Predator Tuner.
Is it just installing the pulley and new belt,then plugging the tuner in and selecting the appropriate tune?
Or does the engine need the fuel/air mixture re-calibrated ??
Any advise gladly received thanks

Where you just planning to use the tune that comes with the predator? If so that is not a good idea. You will need more of a custom tune for your setup. Also do you have a wide band A/F gauge setup in your car?

[El Jefe]

I would call Rick at Amazon tuning. If you have a wideband you can datalog and send him the readings and he will fine tweak a tune and email it back to you. Not sure if he does Predator but his lifetime tuning rate is $175 or you can buy an SCT Xcal 3 for $399 and that includes lifetime tune revisions.

http://www.amazonracing.com/

[BurnTire]

I used custom tunes from RWTD when I was using the predator.

http://www.rwtd.com/

[UK 2003 COBRA]

hi thanks for the advice from you all,will give RWTD a call as I have already got the predator tuner and their site looks very user friendly.