Any good CNC fabricators out there?
#1
Any good CNC fabricators out there?
Check this 80mm throttle body out that bolts right up to the stock intake manifold. I wish I had the money to spend 400 bucks on it. Maybe someone can see this and make their own and sell it for a bit cheaper. I bet lots of people would buy this part if it didn't cost so much.
http://cgi.ebay.com/ebaymotors/Mazda...Q5fAccessories
http://cgi.ebay.com/ebaymotors/Mazda...Q5fAccessories
#6
^^^ I was thinking that same thing, I wounder if you could just port it to make the transition not so bad and probably give it a lot more flow. If you didn't trust your porting skills you could probably send it off to bdc who does a great job at that.... Also you guys are probably right, I am really thinking about getting this besides the price and the above mentioned issue it seems like a really nice piece to the high hp street driven puzzle.
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#12
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Why even bother though? Unless you are reaching the point where the stock throttle body holds you back (maybe 600HP?) then "upgrading" to this throttle body only has downsides:
-necessity to fab up some stuff
-need to retune the car
-loss of thermwax cold-start assist system
-loss of progressive throttle action
That last one is a big deal, because it means that now all intake ports are open all the time. The result is needing much more primary injector PW to maintain the same AFRs, making a serious dent in fuel economy. It is also far more difficult to tune smooth throttle transitions on such a big throttle body (I have a 75MM TB on my car). You will also loose some low end torque and the car will be generally twitchy to drive at low throttle.
-necessity to fab up some stuff
-need to retune the car
-loss of thermwax cold-start assist system
-loss of progressive throttle action
That last one is a big deal, because it means that now all intake ports are open all the time. The result is needing much more primary injector PW to maintain the same AFRs, making a serious dent in fuel economy. It is also far more difficult to tune smooth throttle transitions on such a big throttle body (I have a 75MM TB on my car). You will also loose some low end torque and the car will be generally twitchy to drive at low throttle.
#14
Why even bother though? Unless you are reaching the point where the stock throttle body holds you back (maybe 600HP?) then "upgrading" to this throttle body only has downsides:
-necessity to fab up some stuff
-need to retune the car
-loss of thermwax cold-start assist system
-loss of progressive throttle action
That last one is a big deal, because it means that now all intake ports are open all the time. The result is needing much more primary injector PW to maintain the same AFRs, making a serious dent in fuel economy. It is also far more difficult to tune smooth throttle transitions on such a big throttle body (I have a 75MM TB on my car). You will also loose some low end torque and the car will be generally twitchy to drive at low throttle.
-necessity to fab up some stuff
-need to retune the car
-loss of thermwax cold-start assist system
-loss of progressive throttle action
That last one is a big deal, because it means that now all intake ports are open all the time. The result is needing much more primary injector PW to maintain the same AFRs, making a serious dent in fuel economy. It is also far more difficult to tune smooth throttle transitions on such a big throttle body (I have a 75MM TB on my car). You will also loose some low end torque and the car will be generally twitchy to drive at low throttle.
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