I have now done a bunch of mods on my 06S -NS1 cam,mynes header,Borla exhaust,pulley etc.- Since I am using it as a daily driver will a BVH make a big difference??- Since I will not be tracking I am looking for more low mid power- any thoughts would be appreciated
Also any rec.on who makes the best BVH- thanks in advance- gary

 

Not sure on which pulley you are running....but a 17% on a daily driver rather than a 15% helps the boost come on sooner...it might be worth doing a swap....and it get rid of the A/C lag....Not sure about a BigValveHead, beyond my experience, but good luck!!

 

Yep, look at my sig Sent you a pm.

 

You might consider getting a tune before an aftermarket head. The cost is significantly less and customers have reported improvements in throttle response, smoothness, and HP.

Since you have already worked with Mynes, you should call them since they and Revolution MINI Works are two of the most experienced tuners of R53s.

 

yeah looking at your mod list I would say injectors and tune would be by far the best bang for your buck. You could get a head, but without a tune the gains wont really shine. Not to mention they are not cheap at all.

 

thanks guys- i have the 550 injectors and was waiting for a tune to have them installed- If I got the head i would get that done first then the tune-again i am looking for more low/mid power as it is a daily driver- thanks,gary

 

in some cases going to bigger valves reduces air velocity and swirling at low RPM but allows for more flow when the rpm's increase. One of the companies that does mini heads had a ported and polished standard valve head that they claimed increased power and mpg yet did not detract from low rpm operating. Honestly though a head usually wont help with low end. What do you consider 'low end' power?

 

I have the basic Thumper head and can attest to gains in the low to mid rpm range as judged by the butt dyno. The only thing left to do is get a tune. As an added benefit, the Thumper head is a work of art.

Kevin

 

+1
I also have aThumper head with standard sized valves, and got some great gains through out the whole rpm range, in particular low to mid range.
Thumper heads are the the best value heads on the market and unlike other well known mini heads there have never been any reliability issues as Mike really knows his stuff.
However to get the most out of any head a tune is a must

 

For a no track days, Daily Driver....No.
If there was the occasional enthusiastic drive or mountain runs..for sure.
But a daily driver to trudge across suburbia along freeways in heavy traffic. Nah! Don't do it, it's not worth it, save it for the now flattened real estate market.

 

Have to disagree, my Thumper head really transformed the car.
It is my daily driver, I don't track or race it, but the head makes it a hell of alot more fun to drive.

If you can afford to do it go for it

 

I think pretty much if you are an enthusiast who appreciates more torque, adding a head along with anything else to reduce restrictions will be helpful for a daily driver. I still have a standard head but my engine has been rebuilt, bored out, forged pistons, etc.. and along with my header, pulley, and tune, I'm over 250hp.

The problem I have is trying not to spin my wheels everytime I take off. I'm more worried about my clutch than anything else when I'm in stop and go traffic since I've already replaced my performance clutch twice this year.

Richard